RAM

4500 Chassis Cab (2021) - Car RAM - Free user manual and instructions

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📄 463 pages English EN Download 💬 AI Question 10 questions ⚙️ Specs
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Product Type Heavy-duty Chassis Cab Truck
Brand RAM
Model 4500 Chassis Cab (2021)
Category Commercial Vehicle
Overall Length (approx.) 250 inches (varies by configuration)
Overall Width 80 inches
Overall Height 80 inches
Wheelbase 160 inches (typical)
Curb Weight (approx.) 7,500 lbs
Gross Vehicle Weight Rating (GVWR) 14,500 lbs
Engine Options 6.4L HEMI V8 Gas (410 hp) or 6.7L Cummins I6 Diesel (360 hp)
Fuel Type Gasoline or Diesel
Transmission 6-speed automatic (gas) or 8-speed automatic (diesel)
Drivetrain Rear-Wheel Drive or 4x4
Fuel Tank Capacity 52 gallons (standard)
Main Functions Towing, Hauling, Upfitting (dump, flatbed, etc.)
Safety Features Airbags, ABS, Electronic Stability Control, Trailer Sway Control
Maintenance Intervals Oil change every 10,000 miles (diesel) or 7,500 miles (gas); tire rotation every 7,500 miles
Spare Parts Availability Through RAM dealerships and authorized parts distributors
Manual Language English

Frequently Asked Questions - 4500 Chassis Cab (2021) RAM

What is the maximum towing capacity of the 2021 RAM 4500 Chassis Cab?
The maximum towing capacity is up to 30,000 lbs with a gooseneck or fifth-wheel hitch, depending on configuration.
What type of engine oil should I use for the diesel version?
Use SAE 15W-40 that meets API CJ-4 or CK-4 specifications. Refer to the manual for exact viscosity in cold climates.
How often should I change the air filter?
Inspect every 15,000 miles and replace every 30,000 miles under normal conditions. More often in dusty environments.
Can the RAM 4500 be used as a flatbed truck?
Yes, the chassis cab is designed for upfitting. You can install a flatbed, dump body, service body, or other commercial bodies.
What is the warranty coverage for this vehicle?
Standard warranty includes 3 years/36,000 miles basic coverage and 5 years/100,000 miles for the diesel engine and drivetrain.
How do I reset the tire pressure monitoring system (TPMS)?
After inflating tires to the correct pressure, drive the vehicle above 15 mph for 10 minutes. The system automatically recalibrates.
What is the payload capacity?
Payload capacity varies by configuration but generally ranges from 5,000 to 7,000 lbs depending on options and body installation.
Is the 2021 RAM 4500 available with a manual transmission?
No, only automatic transmissions are offered: a 6-speed automatic for the gas engine and an 8-speed automatic for the diesel.
Where can I download the owner's manual?
The owner's manual is available for free download from the official RAM website or from notice-facile.com in PDF format.
What type of coolant is recommended?
Use OAT (Organic Acid Technology) coolant that meets Chrysler MS-12106 or ASTM D3306 standards, typically a 50/50 mix with distilled water.

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USER MANUAL 4500 Chassis Cab (2021) RAM

natural_image Front view of a white Ramc utility truck parked on a rural road at sunset, with no visible text or symbols on the vehicle itself.

RAM 4500 Chassis Cab (2021) - 1

RAM

COMMERCIAL

RAM CHASSIS CAB

2021 OWNER'S MANUAL

This Owner's Manual illustrates and describes the operation of features and equipment that are either standard or optional on this vehicle. This manual may also include a description of features and equipment that are no longer available or were not ordered on this vehicle. Please disregard any features and equipment that are no longer available or were not ordered on this vehicle. FCA US LLC reserves the right to make changes in design and specifications, and/or make additions to or improvements to its products without imposing any obligation upon itself to install them on products previously manufactured.

With respect to vehicles sold in Canada, the name FCA US LLC shall be deemed to be deleted and the name FCA Canada Inc. used in substitution therefore.

If you are the first registered retail owner of your vehicle, you may obtain a complimentary printed copy of the Warranty Booklet by calling 1-866-726-4636 (U.S.) or 1-800-387-1143 (Canada), or by contacting your dealer.

This Owner's Manual is intended to familiarize you with the important features of your vehicle. Your most up-to-date Owner's Manual, Navigation/Uconnect manuals and Warranty Booklet can be found by visiting the website on the back cover. U.S. residents can purchase replacement kits by visiting www.techauthority.com and Canadian residents can purchase replacement kits by calling 1-800-387-1143.

RAM 4500 Chassis Cab (2021) - RAM CHASSIS CAB - 1

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.

RAM 4500 Chassis Cab (2021) - RAM CHASSIS CAB - 2

RAM 4500 Chassis Cab (2021) - RAM CHASSIS CAB - 3

TABLE OF CONTENTS

1 INTRODUCTION....9
2 GETTING TO KNOW YOUR VEHICLE ....15
3 GETTING TO KNOW YOUR INSTRUMENT PANEL 80
4 STARTING AND OPERATING 118
5 MULTIMEDIA 220
6 SAFETY 273
7 IN CASE OF EMERGENCY 334
8 SERVICING AND MAINTENANCE 353
9 TECHNICAL SPECIFICATIONS 431
10 CUSTOMER ASSISTANCE 445
11 INDEX 450

INTRODUCTION

Symbols Key......10

VAN CONVERSIONS/CAMPERS....10

VEHICLE MODIFICATIONS/ALTERATIONS......10

Symbol Glossary....11

GETTING TO KNOW YOUR VEHICLE

KEYS 15

Key Fob.... 15

SENTRY KEY 17

IGNITION SWITCH 18

Keyless Push Button Ignition ....18

REMOTE START — IF EQUIPPED (GASOLINE) ..20

How To Use Remote Start 20

To Exit Remote Start Mode 21

Remote Start Front Defrost

Activation — If Equipped....21

Remote Start Comfort Systems —

If Equipped 21

Remote Start Abort Message....22

REMOTE START — IF EQUIPPED (DIESEL) .....22

How To Use Remote Start 23

VEHICLE SECURITY SYSTEM — IF EQUIPPED ...23

To Arm The System.... 23

To Disarm The System....24

Rearming Of The System...... 24

Security System Manual Override 24

DOORS 24

Manual Door Locks.... 24

Power Door Locks — If Equipped 25

Keyless Enter-N-Go — Passive Entry

(If Equipped) 26

Automatic Unlock Doors On

Exit - If Equipped 28

Automatic Door Locks — If Equipped ...... 28

Child-Protection Door Lock — If Equipped.. 28

STEERING WHEEL 29

Tilt Steering Column 29

Heated Steering Wheel — If Equipped ..... 29

UCONNECT VOICE RECOGNITION.... 30

Introducing Voice Recognition 30

Basic Voice Commands.... 31

Get Started.... 31

Additional Information.... 31

DRIVER MEMORY SETTINGS — IF EQUIPPED... 32

Programming The Memory Feature...... 32

Linking And Unlinking The Remote

Keyless Entry Key Fob To Memory 32

Memory Position Recall.... 33

SEATS 33

Manual Front Seat Adjustment.... 34

Power Driver Seat Adjustment —

If Equipped.... 35

Heated Seats — If Equipped 36

Ventilated Seats — If Equipped.... 37

Head Restraints.... 38

DRIVER ADJUSTABLE PEDALS —

IF EQUIPPED ....40

MIRRORS 41

Inside Rearview Mirror 41

Illuminated Vanity Mirror — If Equipped..... 43

Outside Mirrors 44

Driver's Outside Automatic Dimming

Mirror - If Equipped.... 44

Power Mirrors — If Equipped 44

Power Convex Mirror Switch —

If Equipped.... 45

Trailer Towing Mirrors 46

Heated Mirrors — If Equipped.... 46

Tilt Side Mirrors In Reverse — If Equipped ... 46

Outside Mirrors Folding Feature...... 46

(HOMELINK®) — IF EQUIPPED ....47

Before You Begin Programming

HomeLink® 47

Erasing All The HomeLink® Channels ..... 47

Identifying Whether You Have A Rolling

Code Or Non-Rolling Code Device 47

Programming HomeLink® To A Garage

Door Opener 48

Programming HomeLink® To A

Miscellaneous Device 49

Reprogramming A Single HomeLink®

Button....49

Canadian/Gate Operator Programming..... 50

EXTERIOR LIGHTS....50

Headlight Switch....50

Multifunction Lever.... 51

Daytime Running Lights (DRLs) 51

High/Low Beam Switch 51

Automatic High Beam Headlamp

Control - If Equipped 52

Flash-To-Pass 52

Automatic Headlights – If Equipped .....52

Directional LED Headlamp

System – If Equipped ....52

Parking Lights And Panel Lights 53

Automatic Headlights With Wipers 53

Headlight Delay.... 53

Lights-On Reminder....53

Front Fog Lights - If Equipped 53

Turn Signals 54

Lane Change Assist — If Equipped ..... 54

Cargo Lights/Trailer Spotter Lights — If

Equipped 54

Battery Saver....54

INTERIOR LIGHTS 55

Courtesy Lights 55

Illuminated Entry 56

WINDSHIELD WIPERS AND WASHERS .....56

Windshield Wiper Operation 57

Rain Sensing Wipers — If Equipped .....58

CLIMATE CONTROLS 58

Automatic Climate Control Descriptions

And Functions 59

Manual Climate Control Descriptions And

Functions.... 62

Automatic Temperature

Control (ATC) 64

Climate Voice Recognition 65

Operating Tips 65

INTERIOR STORAGE AND EQUIPMENT ...... 66

Storage 66

USB/AUX Control 72

Electrical Power Outlets 73

Power Inverter — If Equipped 74

Wireless Charging Pad — If Equipped ..... 76

WINDOWS 76

Power Windows — If Equipped.... 76

Automatic Window Features —

If Equipped.... 77

Reset Auto-Up 77

Window Lockout Switch — If Equipped..... 78

Power Sliding Rear Window

If Equipped 78

Manual Sliding Rear Window —

If Equipped.... 78

Wind Buffeting 78

HOOD 79

To Open The Hood 79

To Close The Hood.... 79

GETTING TO KNOW YOUR

INSTRUMENT PANEL

BASE / MIDLINE INSTRUMENT CLUSTER —

GASOLINE 80

Base / Midline Instrument Cluster

Descriptions....81

Battery Saver On/Battery Saver Mode

Message — Electrical Load Reduction

Actions — If Equipped ......105

WARNING LIGHTS AND MESSAGES .... 107

Red Warning Lights ....107

Yellow Warning Lights 110

Yellow Indicator Lights 113

Green Indicator Lights....115

White Indicator Lights 115

Blue Indicator Lights 116

ONBOARD DIAGNOSTIC SYSTEM — OBD II ... 116

Onboard Diagnostic System

(OBD II) Cybersecurity....116

EMISSIONS INSPECTION AND MAINTENANCE

PROGRAMS 117

STARTING AND OPERATING

STARTING THE ENGINE — GASOLINE

ENGINE 118

Automatic Transmission....118

Tip Start Feature ....118

Keyless Enter-N-Go — Ignition....118

Normal Starting Using ENGINE

START/STOP Button 119

AutoPark — Rotary Shifter and Eight

Speed Transmission Only....120

Cold Weather Operation

(Below -22°F Or -30°C)....122

After Starting....122

STARTING THE ENGINE — DIESEL ENGINE..... 122

Automatic Transmission....123

Keyless Enter-N-Go — Ignition....123

Extreme Cold Weather....125

Normal Starting Procedure — Engine Manifold

Air Temperature Above 66°F (19°C) .....125

Starting Procedure — Engine Manifold

Air Temperature 0°F To 66°F

(-18°C to 19°C)....126

Starting Procedure — Engine Manifold Air

Temperature Below 0°F (-18°C).....127

Starting Fluids....128

NORMAL OPERATION — DIESEL ENGINE.....128

Cold Weather Precautions ......129

Engine Idling 131

Noise....132

Stopping The Engine ....133

Idle Shutdown 133

Programmable Maximum Vehicle

Speed 134

Operating Precautions....134

Cooling System Tips 134

Diesel Particulate Filter (DPF) Manual

Regeneration - If Equipped 135

ENGINE BLOCK HEATER — IF EQUIPPED .....135

ENGINE BREAK-IN RECOMMENDATIONS —

GASOLINE ENGINE ....136

ENGINE BREAK-IN RECOMMENDATIONS —

DIESEL ENGINE....137

PARKING BRAKE 137

DIESEL EXHAUST BRAKE

(ENGINE BRAKING) 138

AUTOMATIC TRANSMISSION....140

Ignition Park Interlock 141

Brake/Transmission Shift Interlock (BTSI)

System 141

Eight-Speed Automatic Transmission — If

Equipped 141

Six-Speed Automatic

Transmission – If Equipped .....146

AUXILIARY SWITCHES — IF EQUIPPED ..... 152

Electronically Shifted Transfer Case (Eight

Speed Transmission) — If Equipped .....153

Electronically Shifted Transfer Case

(Six Speed Transmission) — If Equipped.. 156

Manually Shifted Transfer Case

If Equipped....160

LIMITED-SLIP DIFFERENTIAL 162

Hydraulic Power Steering....163

CRUISE CONTROL SYSTEMS —

IF EQUIPPED 164

Cruise Control — If Equipped .....164

Adaptive Cruise Control (ACC) —

If Equipped 166

PARKSENSE FRONT/REAR PARK

ASSIST — IF EQUIPPED 177

ParkSense Sensors 178

ParkSense Warning Display....178

ParkSense Display....178

Enabling And Disabling ParkSense .....181

Service The ParkSense Park Assist

System....182

Cleaning The ParkSense System......182

ParkSense System Usage Precautions....182

LANESENSE — IF EQUIPPED 183

LaneSense Operation....183

Turning LaneSense On Or Off 184

LaneSense Warning Message ....184

Changing LaneSense Status......186

PARKVIEW REAR BACK UP CAMERA 186

AUX Camera — If Equipped .....188

Gross Vehicle Weight Rating (GVWR) .....199

Payload....199

Gross Axle Weight Rating (GAWR) ......200

Tire Size....200

Rim Size....200

Inflation Pressure 200

Curb Weight....200

Loading....200

TRAILER TOWING....200

Common Towing Definitions ......201

Trailer Hitch Type and Maximum Trailer

Weight 204

Trailer Towing Weights (Maximum Trailer

Weight Ratings) 205

Trailer And Tongue Weight 205

Towing Requirements ....205

Towing Tips 211

SNOWPLOW — IF EQUIPPED ......212

Before Plowing....212

Snowplow Prep Package Model

Availability 212

Over The Road Operation With Snowplow

Attached 213

Operating Tips......213

General Maintenance....213

RECREATIONAL TOWING (BEHIND

MOTORHOME) 214

Towing This Vehicle Behind Another

Vehicle....214

Recreational Towing — Two-Wheel Drive

Models....215

Recreational Towing — Four-Wheel Drive

Models....215

DRIVING TIPS....218

Driving On Slippery Surfaces .....218

Driving Through Water 218

MULTIMEDIA

UCONNECT SYSTEMS 220

CYBERSECURITY 220

UCONNECT 3.0....221

Introduction....221

Radio Mode....222

Media Mode....224

Phone Mode....225

UCONNECT SETTINGS 228

Customer Programmable Features.....228

UCONNECT INTRODUCTION.... 244

System Overview 244

Safety And General Information 246

UCONNECT MODES 247

Steering Wheel Audio Controls...... 247

Radio Mode 247

Media Mode 255

Phone Mode 258

RADIO OPERATION AND MOBILE PHONES.... 269

Regulatory And Safety Information .....269

OFF-ROAD PAGES — IF EQUIPPED 270

Off-Road Pages Status Bar 270

Vehicle Dynamics 271

Accessory Gauge 271

Pitch & Roll....272

Forward Facing Camera....272

SAFETY

SAFETY FEATURES 273

Anti-Lock Brake System (ABS) 273

Electronic Brake Control (EBC) System ...274

AUXILIARY DRIVING SYSTEMS 281

Forward Collision Warning (FCW) With

Mitigation – If Equipped......281

Tire Pressure Monitoring

System (TPMS) 284

OCCUPANT RESTRAINT SYSTEMS 292

Occupant Restraint Systems Features ....292

Important Safety Precautions ......293

Seat Belt Systems 293

Supplemental Restraint Systems (SRS)...302

Child Restraints....312

SAFETY TIPS 330

Transporting Passengers 330

Transporting Pets 330

Safety Checks You Should Make Inside

The Vehicle 330

Periodic Safety Checks You Should Make

Outside The Vehicle....332

Exhaust Gas 333

Carbon Monoxide Warnings....333

IN CASE OF EMERGENCY

HAZARD WARNING FLASHERS ....334

ASSIST AND SOS SYSTEM — IF EQUIPPED.....335

JACKING AND TIRE CHANGING ....339

4500/5500 Models 339

Preparations For Jacking....339

Jacking Instructions 4500 And

5500 Series 340

To Stow The Flat Or Spare —

If Equipped 343

Hub Caps/Wheel Covers — If Equipped ...343

JUMP STARTING 344

Preparations For Jump Start....344

Jump Starting Procedure 345

IF YOUR ENGINE OVERHEATS ....346

FREEING A STUCK VEHICLE ....349

TOWING A DISABLED VEHICLE ....350

Two-Wheel Drive Models....351

Four-Wheel Drive Models....351

Emergency Tow Hooks — If Equipped .....352

ENHANCED ACCIDENT RESPONSE

SYSTEM (EARS) 352

EVENT DATA RECORDER (EDR) 352

SERVICING AND MAINTENANCE

SCHEDULED SERVICING — GASOLINE

ENGINE.... 353

Maintenance Plan ....354

SCHEDULED SERVICING — DIESEL ENGINE .. 357

Oil Change Indicator System — Cummins

Diesel....357

Perform Service Indicator — Cummins

Diesel 358

Maintenance Plan — Cummins Diesel

Engine 359

ENGINE COMPARTMENT 364

6.4L Engine ....364

6.7L Engine....365

Checking Oil Level 366

Adding Washer Fluid ....366

Maintenance-Free Battery 366

Pressure Washing....367

VEHICLE MAINTENANCE 367

Engine Oil 368

Engine Oil Filter....369

Engine Air Cleaner Filter 369

Air Conditioner Maintenance ....371

Accessory Drive Belt Inspection ....374

Draining Fuel/Water Separator Filter.....375

Engine Mounted Fuel Filter

Replacement....376

Underbody Mounted Fuel Filter

Replacement....377

Priming If The Engine Has Run Out

Of Fuel 378

Intervention Regeneration Strategy —

Message Process Flow 379

Diesel Exhaust Fluid 379

Body Lubrication....380

Windshield Wiper Blades 380

Exhaust System 382

Cooling System 383

Charge Air Cooler — Inter-Cooler .....386

Brake System 387

Automatic Transmission....387

Rear Axle And 4x4 Front Driving Axle

Fluid Level 390

Transfer Case 391

Noise Control System Required

Maintenance & Warranty 391

TIRES 406

Tire Safety Information 406

Tires – General Information ....414

Tire Types 418

Spare Tires – If Equipped ......419

Wheel And Wheel Trim Care 421

Snow Traction Devices 422

Tire Rotation Recommendations......424

DEPARTMENT OF TRANSPORTATION UNIFORM

TIRE QUALITY GRADES 425

Treadwear 426

Traction Grades 426

Temperature Grades 426

STORING THE VEHICLE 427

BODYWORK 427

Protection From Atmospheric Agents.....427

Body And Underbody Maintenance.....427

Preserving The Bodywork....428

INTERIORS 428

Seats And Fabric Parts....428

Plastic And Coated Parts....429

Leather Surfaces 430

Glass Surfaces 430

TECHNICAL SPECIFICATIONS

VEHICLE IDENTIFICATION NUMBER (VIN) ..... 431

BRAKE SYSTEM 431

Hydraulic Brake Assist — If Equipped.....431

WHEEL AND TIRE TORQUE

SPECIFICATIONS.... 432

Torque Specifications....432

FUEL REQUIREMENTS — GASOLINE

ENGINE 433

6.4L Engine....433

Reformulated Gasoline 433

Materials Added To Fuel 434

Gasoline/Oxygenate Blends 434

Do Not Use E-85 In Non-Flex Fuel

Vehicles....434

CNG And LP Fuel System Modifications ..435

Methylcyclopentadienyl Manganese

Tricarbonyl (MMT) In Gasoline....435

Fuel System Cautions....435

FUEL REQUIREMENTS - DIESEL ENGINE ..... 436

Fuel Specifications ....436

Biodiesel Fuel Requirements......437

FLUID CAPACITIES 439

ENGINE FLUIDS AND LUBRICANTS 440

CHASSIS FLUIDS AND LUBRICANTS 444

CUSTOMER ASSISTANCE

SUGGESTIONS FOR OBTAINING SERVICE FOR

YOUR VEHICLE 445

Prepare For The Appointment....445

Prepare A List....445

Be Reasonable With Requests ....445

IF YOU NEED ASSISTANCE ....445

FCA US LLC Customer Center ....446

FCA Canada Inc. Customer Center......446

Mexico 446

Puerto Rico And US Virgin Islands .....446

Customer Assistance For The Hearing Or

Speech Impaired (TDD/TTY) 446

Service Contract 446

WARRANTY INFORMATION...... 447

MOPAR PARTS.... 447

REPORTING SAFETY DEFECTS 447

In The 50 United States And

Washington, D.C. 447

In Canada....448

PUBLICATION ORDER FORMS 448

General Information.... 449

INTRODUCTION

Dear Customer,

Congratulations on the purchase of your new Ram. Be assured that it represents precision workmanship, distinctive styling, and high quality.

This is a specialized utility vehicle. It can go places and perform tasks that are not intended for conventional passenger vehicles. It handles and maneuvers differently from many passenger vehicles both on-road and off-road, so take time to become familiar with your vehicle. If equipped, the two-wheel drive version of this vehicle was designed for on-road use only. It is not intended for off-road driving or use in other severe conditions suited for a four-wheel drive vehicle. Before you start to drive this vehicle, read the Owner's Manual. Be sure you are familiar with all vehicle controls, particularly those used for braking, steering, transmission, and transfer case shifting. Learn how your vehicle handles on different road surfaces. Your driving skills will improve with experience. When driving off-road, or working the vehicle, don't overload the vehicle or expect the vehicle to overcome the natural laws of physics. Always observe federal, state, provincial and local laws wherever you drive. As with other vehicles of this type, failure to operate this vehicle correctly may result in loss of control or a collision ↩ page 218.

This Owner's Manual has been prepared with the assistance of service and engineering specialists to acquaint you with the operation and maintenance of your vehicle. It is supplemented by customer-oriented documents. Within this information, you will find a description of the services that FCA US LLC offers to its customers as well as the details of the terms and conditions for maintaining its validity. Please take the time to read all of these publications carefully before driving your vehicle for the first time. Following the instructions, recommendations, tips, and important warnings in this manual will help ensure safe and enjoyable operation of your vehicle.

This Owner's Manual describes all versions of this vehicle. Options and equipment dedicated to specific markets or versions are not expressly indicated in the text. Therefore, you should only consider the information that is related to the trim level, engine, and version that you have purchased. Any content introduced throughout the Owner's Information, which may or may not be applicable to your vehicle, will be identified with the wording "If Equipped". All data contained in this publication are intended to help you use your vehicle in the best possible way. FCA US LLC aims at a constant improvement of the vehicles produced. For this reason, it reserves the right to make changes to the model described for technical and/or commercial reasons. For further information, contact an authorized dealer.

When it comes to service, remember that authorized dealers know your Ram best, have factory-trained technicians and genuine MOPAR® parts, and care about your satisfaction.

SYMBOLS KEY

WARNING!These statements are against operating procedures that could result in a collision, bodily injury and/or death.
CAUTION!These statements are against procedures that could result in damage to your vehicle.
NOTE:A suggestion which will improve installation, operation, and reliability. If not followed, may result in damage.
TIP:General ideas/solutions/suggestions on easier use of the product or functionality.
PAGE REFERENCE ARROWRAM 4500 Chassis Cab (2021) - INTRODUCTION - 1Follow this reference for additional information on a particular feature.
FOOTNOTESupplementary and relevant information pertaining to the topic.

If you do not read this entire Owner's Manual, you may miss important information. Observe all Cautions and Warnings.

VAN CONVERSIONS/CAMPERS

The New Vehicle Limited Warranty does not apply to body modifications or special equipment installed by van conversion/camper manufacturers/body builders. US residents refer to the Warranty Information, Section 2.1.C. Canadian residents refer to the "What Is Not Covered" section of the Warranty Information. Such equipment includes video monitors, DVD/Blu-Ray™, heaters, stoves, refrigerators, etc. For warranty coverage and service on these items, contact the applicable manufacturer.

Operating instructions for the special equipment installed by the conversion/camper manufacturer should also be supplied with your vehicle. For any additional instructions, please contact your conversion/camper manufacturer.

To obtain dimensional and technical specifications for your vehicle, refer to the Body Builder's Guide at https://www.ramtrucks.com/ram-commercial/body-builders-guide.html.

VEHICLE MODIFICATIONS/ALTERATIONS

WARNING!
Any modifications or alterations to this vehicle could seriously affect its roadworthiness and safety and may lead to a collision resulting in serious injury or death.

SYMBOL GLOSSARY

Some car components have colored labels with symbols indicating precautions to be observed when using this component. It is important to follow all warnings when operating your vehicle. See below for the definition of each symbol ↩ page 107.

Red Warning Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 1Seat Belt Reminder Warning Light ➤ page 107
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 2Air Bag Warning Light ➤ page 107
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 3Brake Warning Light ➤ page 107
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 4Hood Open Warning Light ➤ page 108
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 5Vehicle Security Warning Light — If Equipped ➤ page 108
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 6Engine Coolant Temperature Warning Light ➤ page 108
Red Warning Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 7Battery Charge Warning Light ➔ page 108
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 8Oil Pressure Warning Light ➔ page 108
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 9Oil Temperature Warning Light ➔ page 109
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 10Electronic Throttle Control (ETC) Warning Light ➔ page 109
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 11Electric Power Steering (EPS) Fault Warning Light ➔ page 109
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 12Trailer Brake Disconnected Warning Light ➔ page 109
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 13Transmission Temperature Warning Light — If Equipped ➔ page 109
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 14Door Open Warning Light ➔ page 110
Yellow Warning Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 15Adaptive Cruise Control (ACC) Fault Warning Light — If Equipped ➔ page 110
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 16Engine Check/Malfunction Indicator Warning Light (MIL) ➔ page 110
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 17Electronic Stability Control (ESC) Active Warning Light — If Equipped ➔ page 111
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 18Electronic Stability Control (ESC) OFF Warning Light — If Equipped ➔ page 111
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 19Low Washer Fluid Warning Light — If Equipped ➔ page 111
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 20Low Fuel Warning Light ➔ page 111
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 21Low Coolant Level Warning Light ➔ page 111
Yellow Warning Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 22Loose Fuel Filler Cap Warning Light — If Equipped ➔ page 111
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 23Tire Pressure Monitoring System (TPMS) Warning Light — If Equipped ➔ page 111
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 24Anti-Lock Brake System (ABS) Warning Light ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 25Service Forward Collision Warning (FCW) Light — If Equipped ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 26Service 4WD Warning Light — If Equipped ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 27Cruise Control Fault Warning Light ➔ page 113
Yellow Indicator Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 28Forward Collision Warning (FCW) Off Indicator Light — If Equipped ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 29TOW/HAUL Indicator Light ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 30Trailer Merge Assist Indicator Light — If Equipped ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 31Cargo Light — If Equipped ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 32Snowplow Mode Indicator Light — If Equipped ➔ page 113
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 33Cold Ambient Derate Mode Indicator Light — If Equipped ➔ page 114
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 34Diesel Exhaust Brake Indicator Light — If Equipped ➔ page 114
Yellow Indicator Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 354WD Lock Indicator Light ➔ page 114
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 364WD Low Indicator Light — If Equipped ➔ page 114
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 374WD High Indicator Light — If Equipped ➔ page 114
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 38NEUTRAL Indicator Light — If Equipped ➔ page 114
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 39Low Diesel Exhaust Fluid (DEF) Indicator Light — If Equipped ➔ page 114
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 40Wait To Start Light — If Equipped ➔ page 114
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 41Water In Fuel Indicator Light — If Equipped ➔ page 114
Green Indicator Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 42Adaptive Cruise Control (ACC) Set With Target Light — If Equipped ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 43Adaptive Cruise Control (ACC) Set With No Target Detected Indicator Light — If Equipped ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 44Automatic Diesel Exhaust Brake Indicator Light — If Equipped ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 45ECO Mode Indicator Light — If Equipped ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 46Park/Headlight On Indicator Light ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 47Front Fog Indicator Light — If Equipped ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 48Turn Signal Indicator Lights ➔ page 115
Green Indicator Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 49Cruise Control Set Indicator Light — If Equipped ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 50White Indicator Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 51Adaptive Cruise Control (ACC) Ready Light — If Equipped ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 52Cruise Control Ready Indicator ➔ page 115
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 53Set Speed Display ➔ page 115
Blue Indicator Lights
RAM 4500 Chassis Cab (2021) - SYMBOL GLOSSARY - 54High Beam Indicator Light ➔ page 116
Green Indicator Lights
Cruise Control Set Indicator Light — If Equipped ➔ page 115
White Indicator Lights
Adaptive Cruise Control (ACC) Ready Light — If Equipped ➔ page 115
Cruise Control Ready Indicator ➔ page 115
Set Speed Display ➔ page 115
Blue Indicator Lights
High Beam Indicator Light ➔ page 116

GETTING TO KNOW YOUR VEHICLE

KEYS

KEY FOB

Your vehicle is equipped with a key fob which supports Remote Keyless Entry (RKE) (if equipped) and Keyless Enter-N-Go (if equipped).

If the vehicle is equipped with remote power door locks, the key fob allows you to lock or unlock all doors, as well as activate the Panic Alarm, from distances up to approximately 66 ft (20 m). The key fob does not need to be pointed at the vehicle to activate the system.

NOTE:

  • The key fob's wireless signal may be blocked if the key fob is located next to a mobile phone, laptop, or other electronic device. This may result in poor performance.
  • The key fob should not be placed next to the wireless charging pad (if equipped).
  • In the ON/RUN position, all key fob buttons will work until the vehicle reaches 2 mph (4 km/h).

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image Diagram of a car interior with numbered labels pointing to key compartments such as lock, reset, and x2.

A0204000065US

Key Fob

1 – Unlock
2 - Lock
3 - Remote Start
4-PANIC
5 - Emergency Key

In case the ignition switch does not change with the push of a button, the key fob may have a low or fully depleted battery. A low key fob battery can be verified by referring to the instrument cluster, which will display directions to follow.

To Lock/Unlock The Doors

If the vehicle is equipped with remote power door locks, push and release the unlock button on the key fob once to unlock the driver's door. Push the unlock button twice within five seconds to unlock all doors. If the vehicle is equipped with remote power door locks, push and release the lock button on the key fob to lock all doors.

16 GETTING TO KNOW YOUR VEHICLE

When the doors are unlocked, the turn signals will flash and the illuminated entry system will be activated. When the doors are locked, the turn signals will flash and the horn will chirp.

All doors can be programmed to unlock on the first push of the unlock button. The horn chirp when the lock button is pushed can be programmed on/off within Uconnect Settings → page 228.

Replacing The Battery In The Key Fob

The replacement battery model is one CR2450 battery.

NOTE:

  • Customers are recommended to use a battery obtained from Mopar. Aftermarket coin battery dimensions may not meet the original OEM coin battery dimensions.
  • Perchlorate Material – special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate for further information.
  • Do not touch the battery terminals that are on the back housing or the printed circuit board.

  • Remove the emergency key (1) by pushing and holding the release button (2) located on the side of the key fob while pulling the emergency key out with your other hand.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Diagram of a car interior showing labeled parts (no text or symbols present)

A0204000040US

Emergency Key Removal

1 – Emergency Key
2 – Emergency Key Release Button

  1. Hold the key fob with the button side facing down, and locate the small rectangular gap on the left side between the housing and the back cover of the key fob. Use a small screw driver (or similar tool) to pry open the left side of the fob cover while applying pressure until the cover snaps open.

  2. Next, locate the gap on the right side of the key fob, which is positioned further to the edge than the left side gap. Pry open the right side, and remove the back cover.

  3. Remove the battery by using your thumb to slide the battery downward and back toward the key ring.

RAM 4500 Chassis Cab (2021) - Emergency Key Removal - 1

natural_image Technical line drawing of a mechanical component with two views (top and side), no visible text or symbols

Key Fob Battery Location

NOTE:

When replacing the battery, ensure the (+) sign on the battery is facing upward. Avoid touching the new battery with your fingers. Skin oils may cause battery deterioration. If you touch a battery, clean it with rubbing alcohol.

  1. Replace the battery by using your thumb to push down and slide the battery under the small lip on the top edge of the opening.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Hand holding a small mechanical component with an arrow indicating upward motion (no text or symbols)

A0204000043US

Key Fob Battery Replacement

  1. To assemble the key fob case, line up the top edge of the back cover with the top of the fob, and press the edges into the interlocking hinges until all edges snap together with no large visual gaps.
  2. Reinsert the emergency key until it locks into place.

NOTE:

The key fob battery should only be replaced by qualified technicians. If the battery requires replacement, see an authorized dealer.

Programming And Requesting Additional Key Fobs

Programming the key fob may be performed by an authorized dealer.

NOTE:

  • Once a key fob is programmed to a vehicle, it cannot be re-purposed and reprogrammed to another vehicle.
  • Only key fobs that are programmed to the vehicle electronics can be used to start and operate the vehicle. Once a key fob is programmed to a vehicle, it cannot be programmed to any other vehicle.

WARNING!

● Always remove the key fobs from the vehicle and lock all doors when leaving the vehicle unattended.
- For vehicles equipped with Keyless Enter-N-Go — Ignition, always remember to place the ignition in the OFF mode.

Duplication of key fobs may be performed at an authorized dealer. This procedure consists of programming a blank key fob to the vehicle

electronics. A blank key fob is one that has never been programmed.

NOTE:

When having the Sentry Key Immobilizer system serviced, bring all vehicle keys with you to an authorized dealer → page 449.

SENTRY KEY

The Sentry Key Immobilizer system prevents unauthorized vehicle operation by disabling the engine. The system does not need to be armed or activated. Operation is automatic, regardless of whether the vehicle is locked or unlocked.

The system uses a key fob, keyless push button ignition and a Radio Frequency (RF) receiver to prevent unauthorized vehicle operation. Therefore, only key fobs that are programmed to the vehicle can be used to start and operate the vehicle. The system cannot reprogram a key fob obtained from another vehicle.

After placing the ignition switch in the ON/RUN position, the vehicle security light will turn on for three seconds for a bulb check. If the light remains on after the bulb check, it indicates that there is a problem with the electronics. In addition, if the light begins to flash after the

18 GETTING TO KNOW YOUR VEHICLE

bulb check, it indicates that someone attempted to start the engine with an invalid key fob. In the event that a valid key fob is used to start the engine but there is an issue with the vehicle electronics, the engine will start and shut off after two seconds.

If the vehicle security light turns on during normal vehicle operation (vehicle running for longer than 10 seconds), it indicates that there is a fault in the electronics. Should this occur, have the vehicle serviced as soon as possible by an authorized dealer.

CAUTION!

The Sentry Key Immobilizer system is not compatible with some aftermarket remote starting systems. Use of these systems may result in vehicle starting problems and loss of security protection.

All of the key fobs provided with your new vehicle have been programmed to the vehicle electronics ➤ page 449.

IGNITION SWITCH

KEYLESS PUSH BUTTON IGNITION

This feature allows the driver to operate the ignition switch with the push of a button as long as the Remote Keyless Entry key fob is in the passenger compartment.

The Keyless Push Button Ignition has four operating positions; three of which are labeled and will illuminate when in position. The three positions are OFF, ACC, and ON/RUN. The fourth position is START. During START, RUN will illuminate.

NOTE:

In case the ignition switch does not change with the push of a button, the key fob may have a low or depleted battery. In this situation, a back up method can be used to operate the ignition switch. Put the nose side (side opposite of the emergency key) of the key fob against the START/STOP ignition button, with your foot applied on the brake pedal, and push to operate the ignition switch.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image START ENGINE STOP ACC RUN O/82

A0205000015US
Keyless Push Button Ignition

1-OFF

2 - ACC (Accessory)

3-ON/RUN

The push button ignition can be placed in the following modes:

OFF

• The engine is stopped.
- Some electrical devices (e.g. central locking, alarm, etc.) are still available.

ACC

  • Engine is not started.
  • Some electrical devices are available (e.g. power windows etc.).

RUN

  • Driving position.
  • All the electrical devices are available (e.g. climate controls, heated seats, etc.).

START

• The engine will start.

WARNING!

  • When exiting the vehicle, always remove the key fob from the vehicle and lock your vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle.
  • Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the gear selector.

(Continued)

WARNING! (Continued)

  • Do not leave the key fob in or near the vehicle, or in a location accessible to children, and do not leave the ignition of a vehicle equipped with Keyless Enter-N-Go in the ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.
  • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.

CAUTION!

An unlocked vehicle is an invitation for thieves. Always remove key fob from the vehicle and lock all doors when leaving the vehicle unattended.

In case the ignition switch does not change with the push of a button, the key fob may have a low or depleted battery. In this situation, a back up method can be used to operate the ignition switch. Put the nose side (side opposite of the emergency key) of the key fob against the START/STOP ignition button and push to operate the ignition switch.

RAM 4500 Chassis Cab (2021) - CAUTION! - 1

natural_image Interior view of a car showing a key inserted into the dashboard (no text or symbols visible)

Back Up Starting Method

NOTE:

  • The key fob may not be detected by the vehicle Keyless Enter-N-Go system if it is located next to a mobile phone, laptop or other electronic device; these devices may block the key fob's wireless signal and prevent the Keyless Enter-N-Go system from starting the vehicle.
  • For more information on the engine starting procedure, see ➤ page 118.

REMOTE START — IF EQUIPPED (GASOLINE)

RAM 4500 Chassis Cab (2021) - REMOTE START — IF EQUIPPED (GASOLINE) - 1

This system uses the key fob to start the engine conveniently from outside the vehicle while still maintaining security. The system has a range of lately 300 ft (91 m).

Remote start is used to defrost windows in cold weather, and to reach a comfortable climate in all ambient conditions before the driver enters the vehicle.

NOTE:

Obstructions between the vehicle and the key fob may reduce this range ▶ page 449.

WARNING!

- Do not start or run an engine in a closed garage or confined area. Exhaust gas contains Carbon Monoxide (CO) which is odorless and colorless. Carbon Monoxide is poisonous and can cause serious injury or death when inhaled.

(Continued)

WARNING! (Continued)

- Keep key fobs away from children. Operation of the Remote Start System, windows, door locks or other controls could cause serious injury or death.

How To Use Remote Start

Push and release the Remote Start button on the key fob twice within five seconds. The parking lights will flash, vehicle doors will lock, and the horn will chirp twice (if programmed). Once the vehicle has started, the engine will run for 15 minutes.

Pushing the remote start button a third time shuts the engine off.

To drive the vehicle, push the unlock button, insert the key into the ignition, and turn to the ON/RUN position.

NOTE:

  • With Remote Start, the engine will only run for 15 minutes.
  • Remote Start can only be used twice.
  • If an engine fault is present or fuel level is low, the vehicle will start and then shut down in 10 seconds.
  • The parking lights will turn on and remain on during Remote Start mode.
  • For security, power window operation is disabled when the vehicle is in the Remote Start mode.
  • The ignition must be placed in the ON/RUN position before the Remote Start sequence can be repeated for a third cycle.
  • If your power door locks were unlocked, Remote Start will automatically lock the doors.

All of the following conditions must be met before the engine will remote start:

  • Gear selector in PARK
  • Doors closed
  • Hood closed
  • Hazard switch off
  • Brake switch inactive (brake pedal not pushed)
    ● Battery at an acceptable charge level
  • PANIC button not pushed
  • Fuel meets minimum requirement
  • System not disabled from previous remote start event
    ● Vehicle Security system not active
  • Malfunction Indicator Light is not illuminated

To Exit Remote Start Mode

To drive the vehicle after starting the Remote Start system, push and release the START/STOP ignition button while pressing the brake pedal prior to the end of the 15 minute cycle.

The Remote Start system will turn the engine off with another push and release of the Remote Start button on the key fob, or if the engine is allowed to run for the entire 15 minute cycle. Once the ignition is placed in the ON/RUN position, the climate controls will resume the previously set operations (temperature, blower control, etc.).

NOTE:

  • For vehicles equipped with the Keyless Enter-N-Go — Passive Entry feature, the message “Remote Start Active — Push Start Button” will display in the instrument cluster display until you push the START/STOP ignition button.
  • To avoid unintentional shutdowns, the system will disable for two seconds after receiving a valid Remote Start request.

REMOTE START FRONT DEFROST ACTIVATION — IF EQUIPPED

When remote start is active, and the outside ambient temperature is 40^ F ( 4.5^ C) or below, the system will automatically activate front defrost for 15 minutes or less. The time is dependent on the ambient temperature. Once the timer expires, the system will automatically adjust the settings depending on ambient conditions. See “Remote Start Comfort Systems — If Equipped” in the next section for detailed operation.

REMOTE START COMFORT SYSTEMS — IF EQUIPPED

When remote start is activated, the front and rear defrost will automatically turn on in cold weather. The heated steering wheel and driver heated seat feature will turn on if programmed in the comfort menu screen within Uconnect Settings ➤ page 228. In warm weather, the driver vented seat feature will automatically turn on when the remote start is activated and is programmed in the comfort menu screen. The vehicle will adjust the climate control settings depending on the outside ambient temperature.

22 GETTING TO KNOW YOUR VEHICLE

Automatic Temperature Control (ATC) — If Equipped

The climate controls automatically adjust to an optimal temperature and mode, dependent on the outside ambient temperature. When the ignition is placed in the ON/RUN position, the climate controls will resume their previous settings.

Manual Temperature Control (MTC) — If Equipped

  • In ambient temperatures of 40^ F ( 4.5^ C) or below, the climate settings will default to maximum heat, with fresh air entering the cabin. If the front defrost timer expires, the vehicle will enter Mix Mode.
  • In ambient temperatures from 40^ F ( 4.5^ C) to 78^ F ( 26^ C), the climate settings will be based on the last settings selected by the driver.
  • In ambient temperatures of 78^ F ( 26^ C) or above, the climate settings will default to MAX A/C, Bi-Level mode, with Recirculation on.

For more information on ATC, MTC, and climate control settings, see ➕ page 58.

NOTE:

These features will stay on through the duration of remote start, or until the ignition is placed in the ON/RUN position. The climate control settings will change, and exit the automatic defaults, if manually adjusted by the driver while the vehicle is in remote start mode. This includes turning the climate controls off using the OFF button.

REMOTE START ABORT MESSAGE

The following messages will display in the instrument cluster display if the vehicle fails to remote start or exits remote start prematurely:

  • Remote Start Cancelled — Door Open
  • Remote Start Cancelled — Hood Open
  • Remote Start Cancelled – Fuel Low
  • Remote Start Cancelled – System Fault
  • Remote Start Disabled – Start Vehicle to Reset

The instrument cluster display message stays active until the ignition is placed in the ON/RUN position.

REMOTE START — IF EQUIPPED (DIESEL)

RAM 4500 Chassis Cab (2021) - REMOTE START — IF EQUIPPED (DIESEL) - 1

This system uses the key fob to start the engine conveniently from outside the vehicle while still maintaining security. The system has a range of

approximately 300 ft (91 m).

Remote start is used to defrost windows in cold weather, and to reach a comfortable climate in all ambient conditions before the driver enters the vehicle.

NOTE:

  • Obstructions between the vehicle and the key fob may reduce this range.
  • The Remote Start system will wait for the Wait To Start Light ↘ page 114 to extinguish before cranking the engine. This allows time for the intake heater to preheat the incoming air, and is normal operation in cold weather.

How To Use Remote Start

Push and release the Remote Start button on the key fob twice within five seconds. The vehicle doors will lock, the parking lights will flash, and the horn will chirp twice (if programmed). Then, the engine will start, and the vehicle will remain in the Remote Start mode for a 15 minute cycle.

Pushing the remote start button a third time shuts the engine off.

To drive the vehicle, push the unlock button, insert the key into the ignition, and turn to the ON/RUN position.

All of the following conditions must be met before the engine will remote start:

  • Gear selector in PARK
  • Doors closed
  • Hood closed
  • Hazard switch off
  • Brake switch inactive (brake pedal not pressed)

  • Battery at an acceptable charge level

  • PANIC button not pushed
  • Fuel meets minimum requirement
    ● Water In Fuel Indicator Light is not illuminated
  • Wait To Start Light is not illuminated
  • Malfunction Indicator Light (MIL) is not illuminated

For additional functions of the Remote Start system, see ➕ page 21

WARNING!

  • Do not start or run an engine in a closed garage or confined area. Exhaust gas contains Carbon Monoxide (CO) which is odorless and colorless. Carbon Monoxide is poisonous and can cause serious injury or death when inhaled.
  • Keep key fobs away from children. Operation of the Remote Start System, windows, door locks or other controls could cause serious injury or death.

VEHICLE SECURITY SYSTEM — IF EQUIPPED

The Vehicle Security system monitors the vehicle doors and ignition for unauthorized operation. When the Vehicle Security system is activated, interior switches for door locks are disabled. If something triggers the alarm, the Vehicle Security system will provide the following audible and visible signals:

• The horn will pulse
• The turn signals will flash
- The vehicle security light in the instrument cluster will flash

To Arm The System

Follow these steps to arm the Vehicle Security system:

  1. Make sure the vehicle's ignition is placed in the OFF position.
  2. For vehicles equipped with Keyless Entry, make sure the vehicle's keyless ignition system is OFF.

  3. Perform one of the following methods to lock the vehicle:

  4. Push the lock button on the interior power door lock switch with the driver and/or passenger door open.

  5. Push the lock button on the exterior Passive Entry Door Handle with a valid key fob available in the same exterior zone ➤ page 26.
  6. Push the lock button on the key fob.

  7. If any doors are open, close them.

The Vehicle Security system will set when you use the power door locks, or use the key fob to lock the doors. After all the doors are locked and closed, the vehicle security light, in the instrument panel cluster, will flash rapidly for about 16 seconds to indicate that the alarm is being set. After the alarm is set, the vehicle security light will flash at a slower rate to indicate that the system is armed.

To Disarm The System

The Vehicle Security system can be disarmed using any of the following methods:

  1. Push the unlock button on the key fob.
  2. Grab the Passive Entry Door Handle with a valid key fob within 5 ft (1.5 m) of the Passive Entry door handle (if equipped) page 26.
  3. Cycle the ignition out of the OFF position.

The Vehicle Security system is designed to protect your vehicle. However, you can create conditions where the system will give you a false alarm. If one of the previously described arming sequences has occurred, the Vehicle Security system will arm regardless of whether you are in the vehicle or not. If you remain in the vehicle and open a door, the alarm will sound. If this occurs, disarm the Vehicle Security system.

If the Vehicle Security system is armed and the battery becomes disconnected, the Vehicle Security system will remain armed when the battery is reconnected; the exterior lights will flash, and the horn will sound. If this occurs, disarm the Vehicle Security system.

REARMING OF THE SYSTEM

If something triggers the alarm, and no action is taken to disarm it, the Vehicle Security system will turn the horn off after 29 seconds, five seconds between cycles, and up to eight cycles if the trigger remains active. The Vehicle Security system will then rearm itself.

SECURITY SYSTEM MANUAL OVERRIDE

The Vehicle Security system will not arm if you lock the doors using the manual door lock.

DOORS

MANUAL DOOR LOCKS

The power door locks can be manually locked from inside the vehicle by using the door lock knob. To lock each door, push the door lock knob on each door trim panel downward. To unlock the front doors, pull the inside door handle to the first detent. To unlock the rear doors, pull the door lock knob on the door trim panel upward. If the lock knob is down when the door is closed, the door will lock. Therefore, make sure the key fob is not inside the vehicle before closing the door.

RAM 4500 Chassis Cab (2021) - MANUAL DOOR LOCKS - 1

natural_image Interior view of a car dashboard with no visible text or symbols

Door Lock Knob

WARNING!

  • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.
  • For personal security and safety in the event of an collision, lock the vehicle doors as you drive as well as when you park and leave the vehicle.
  • Before exiting a vehicle, always shift the automatic transmission into PARK, apply the parking brake, turn the vehicle OFF, remove the key fobs from vehicle, and lock all doors. and lock your vehicle.

(Continued)

WARNING! (Continued)

  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Leaving children in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the gear selector.
  • Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the gear selector.
  • Do not leave the key fob in or near the vehicle, or in a location accessible to children, and do not leave the ignition of a vehicle equipped with Keyless Enter-N-Go in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.

POWER DOOR LOCKS — IF EQUIPPED

The power door lock switches are located on each front door panel. Push the switch to lock or unlock the doors.

RAM 4500 Chassis Cab (2021) - POWER DOOR LOCKS — IF EQUIPPED - 1

natural_image Diagram of a car dashboard with a black arrow pointing to the control panel (no text or symbols present)

Power Door Lock Switches

The driver's door will unlock automatically if the keys are found inside the vehicle when the door lock button on the front door panel is used to lock the door. This will occur for two attempts. Upon the third attempt, the doors will lock even if the key is inside.

26 GETTING TO KNOW YOUR VEHICLE

NOTE:

If the key fob is located next to a mobile phone, laptop, or other electronic device, the wireless signal may get blocked, and the driver's door may not unlock automatically.

If the door lock switch is pushed while the ignition is in ACC or ON/RUN and the driver's door is open, the doors will not lock.

KEYLESS ENTER-N-GO — PASSIVE ENTRY (IF EQUIPPED)

The Passive Entry system is an enhancement to the vehicle's Remote Keyless Entry system and a feature of Keyless Enter-N-Go. This feature allows you to lock and unlock the vehicle's door(s) without having to push the key fob lock or unlock buttons.

NOTE:

- Passive Entry may be programmed on/off within Uconnect Settings ↕ page 228.

- If wearing gloves or if it has been raining/snowing on the Passive Entry door handle, the unlock sensitivity can be affected, resulting in a slower response time.

  • If the vehicle is unlocked by Passive Entry and no door is opened within 60 seconds, the vehicle will re-lock and if equipped will arm the security alarm.
  • The Vehicle Security system can be armed/disarmed by pushing the Passive Entry key fob lock/unlock buttons (if equipped).
  • The key fob may not be able to be detected by the vehicle Passive Entry system if it is located next to a mobile phone, laptop or other electronic device; these devices may block the key fob's wireless signal and prevent the Passive Entry door handle from locking/unlocking the vehicle.

To Unlock From The Driver or Passenger Side:

With a valid Passive Entry key fob within 5 ft (1.5 m) of the door handle, grab the handle to unlock the vehicle. Grabbing the driver's door handle will unlock the driver door automatically. Grabbing the passenger door handle will unlock all doors automatically. The interior door panel lock knob will raise when the door is unlocked.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Hand holding a device with a button labeled 'I', no visible text or symbols on the device itself

Grab The Door Handle To Unlock

NOTE:

  • If "Unlock All Doors 1st Press" is programmed all doors will unlock when you grab hold of the front driver's door handle. You can select between "Unlock Driver Door 1st Press" and "Unlock All Doors 1st Press" within Uconnect Settings → page 228.
  • All doors will unlock when the front passenger door handle is grabbed regardless of the driver's door unlock preference setting.

Preventing Inadvertent Locking Of Passive Entry Key Fob In Vehicle:

To minimize the possibility of unintentionally locking a Passive Entry key fob inside your vehicle, the Passive Entry system is equipped with an automatic door unlock feature which will function if the ignition switch is in the OFF position.

If one of the vehicle doors is open and the door panel switch is used to lock the vehicle, once all open doors have been closed the vehicle checks the inside and outside of the vehicle for any valid Passive Entry key fobs. If one of the vehicle's Passive Entry key fobs is detected inside the vehicle, and no other valid Passive Entry key fobs are detected outside the vehicle, the Passive Entry system automatically unlocks all vehicle doors and chirps the horn three times (on the third attempt ALL doors will lock and the Passive Entry key fob can be locked in the vehicle).

To Lock The Vehicle's Doors:

With one of the vehicle's Passive Entry key fobs within 5 ft (1.5 m) of the driver or passenger front door handles, push the door handle lock button to lock all doors.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Close-up of a medical or laboratory tool handle with a circular button and central port (no visible text or symbols)

Push The Door Handle Button To Lock

Do NOT grab the door handle when pushing the door handle lock button. This could unlock the door(s).

RAM 4500 Chassis Cab (2021) - NOTE: - 2

text_image A0210000030US

Do NOT Grab The Door Handle When Locking

NOTE:

  • After pushing the door handle lock button, you must wait two seconds before you can lock or unlock the doors, using either Passive Entry door handle. This is done to allow you to check if the vehicle is locked by pulling the door handle, without the vehicle unlocking.
  • The Passive Entry system depends on a key fob that is not fully discharged of its coin battery capacity.
  • When the key fob battery is low, the instrument cluster will display a message indicating that the key fob battery is low ↩ page 15.

The vehicle doors can also be locked by using the key fob lock button or the lock button located on the vehicle's interior door panel page 449.

AUTOMATIC UNLOCK DOORS ON EXIT — IF EQUIPPED

The doors will unlock automatically on vehicles with power door locks after the following sequence of actions:

  1. The Automatic Unlock Doors On Exit feature is enabled.
  2. All doors are closed.
  3. The transmission gear selector was not in PARK, then is placed in PARK.
  4. Any door is opened.

AUTOMATIC DOOR LOCKS — IF EQUIPPED

The auto door lock feature default condition is enabled. When enabled, the door locks will lock automatically when the vehicle's speed exceeds 15 mph (24 km/h). The auto door lock feature is enabled/disabled in the Uconnect Settings page 228.

CHILD-PROTECTION DOOR LOCK — IF EQUIPPED

To provide a safer environment for children riding in the rear seat, the rear doors (if equipped) of your vehicle have the Child-Protection Door Lock system.

To use the system, open each rear door, use a flat blade screwdriver (or emergency key) and rotate the dial to engage and disengage the Child-Protection locks. When the system on a door is engaged, that door can only be opened by using the outside door handle even if the inside door lock is in the unlocked position.

RAM 4500 Chassis Cab (2021) - CHILD-PROTECTION DOOR LOCK — IF EQUIPPED - 1

text_image Child Lock Control A0210000031US

WARNING!

Avoid trapping anyone in the vehicle in a collision. Remember that the rear doors cannot be opened from the inside door handle when the Child Protection Door Locks are engaged.

NOTE:

  • After setting the Child-Protection Door Lock system, always test the door from the inside to make certain it is in the desired position.
  • For emergency exit with the system engaged, move the door lock switch to the unlock position, roll down the window, and open the door with the outside door handle.

STEERING WHEEL

TILT STEERING COLUMN

This feature allows you to tilt the steering column upward or downward. The tilt lever is located on the steering column, below the multifunction lever.

Pull the lever toward the steering wheel to unlock the steering column. With one hand firmly on the steering wheel, move the steering column up or down, as desired. Release the lever to lock the steering column firmly in place.

RAM 4500 Chassis Cab (2021) - TILT STEERING COLUMN - 1

natural_image Interior view of a vehicle showing dashboard, steering wheel, and directional arrows (no text or symbols)

Tilt Steering Lever

WARNING!

Do not adjust the steering column while driving. Adjusting the steering column while driving or driving with the steering column unlocked, could cause the driver to lose control of the vehicle. Failure to follow this warning may result in serious injury or death.

HEATED STEERING WHEEL — IF EQUIPPED

The steering wheel contains a heating element that helps warm your hands in cold weather. The heated steering wheel has only one temperature setting. Once the heated steering wheel has been turned on, it will stay on until the operator turns it off. The heated steering wheel may not turn on when it is already warm.

The heated steering wheel control button is located on the center instrument panel below the touchscreen, as well as within the climate or controls screen of the touchscreen.

  • Press the heated steering wheel button once to turn the heating element on.
  • Press the heated steering wheel button—a second time to turn the heating element off.

NOTE:

The engine must be running for the heated steering wheel to operate.

For information on use with the Remote Start system, see ➕ page 21.

WARNING!

  • Persons who are unable to feel pain to the skin because of advanced age, chronic illness, diabetes, spinal cord injury, medication, alcohol use, exhaustion, or other physical conditions must exercise care when using the steering wheel heater. It may cause burns even at low temperatures, especially if used for long periods.
  • Do not place anything on the steering wheel that insulates against heat, such as a blanket or steering wheel covers of any type and material. This may cause the steering wheel heater to overheat.

30 GETTING TO KNOW YOUR VEHICLE

Start using Uconnect Voice Recognition with these helpful quick tips. It provides the key Voice Commands and tips you need to know to control your vehicle's Voice Recognition (VR) system.

RAM 4500 Chassis Cab (2021) - WARNING! - 1

text_image Please say a command Tune to AM/FM Tune to Satellite Change source to USB / AUX / ...

A0407000005US

Uconnect 3.0

RAM 4500 Chassis Cab (2021) - WARNING! - 2

text_image Listening Help Cancel

Uconnect 3 With 5-inch Display

RAM 4500 Chassis Cab (2021) - WARNING! - 3

text_image Listening...Say a command or say "Help" or "Cancel" Say thing like: Call Dial Redial (last outgoing call) Send message to Tune to FM / AM Tune to channel Media Controls Climate Apps NE Nav Phone Settings

Uconnect 4C/4C NAV With 8.4-inch Display

RAM 4500 Chassis Cab (2021) - WARNING! - 4

text_image 12:38 Say things like: Tune to FM / AM Call Dail Change source to iPod / USB/... Find address
Find nearest

Uconnect 4C NAV With 12-Inch Display

If you see the NAV icon on the bottom bar or in the Apps menus of your 8.4-inch touchscreen, you have the Uconnect 4C NAV system. If not, you have a Uconnect 4C with 8.4-inch display system.

BASIC VOICE COMMANDS

The basic Voice Commands below can be given at any point while using your Uconnect system.

Push the VR button ☐ After the beep, say:

  • "Cancel" to stop a current voice session.
  • "Help" to hear a list of suggested Voice Commands.

- "Repeat" to listen to the system prompts again.

Notice the visual cues that inform you of your Voice Recognition system's status.

GET STARTED

The VR button is used to activate /deactivate your Voice Recognition system.

Helpful hints for using Voice Recognition:

  • Reduce background noise. Wind noise and passenger conversations are examples of noise that may impact recognition.
  • Speak clearly at a normal pace and volume while facing straight ahead.
  • Each time you give a Voice Command, first push the VR button, wait until after the beep, then say your Voice Command.
  • You can interrupt the help message or system prompts by pushing the VR button and saying a Voice Command from the current category.

RAM 4500 Chassis Cab (2021) - GET STARTED - 1

natural_image Interior view of a car steering wheel with a control panel and two labeled buttons (no text or symbols on the main body)

Uconnect Voice Command Buttons

1 – Push To Begin Radio Or Media Functions
2 — Push To Initiate, Answer, End A Phone Call, Or Send/Receive A Text

ADDITIONAL INFORMATION

© 2020 FCA US LLC. All rights reserved. Mopar and Uconnect are registered trademarks and Mopar Owner Connect is a trademark of FCA US LLC. Android™ is a trademark of Google Inc. SiriusXM® and all related marks and logos are trademarks of SiriusXM® Radio Inc ➕ page 449.

For Uconnect system support, call 1-877-855-8400 (24 hours a day 7 days a week) or visit DriveUconnect.com (US) or DriveUconnect.ca (Canada).

DRIVER MEMORY SETTINGS — IF EQUIPPED

This feature allows the driver to save up to two different memory profiles for easy recall through a memory switch. Each memory profile saves desired position settings for the following features:

  • Driver seat position
  • Easy Entry/Exit seat operation (on/off) (if equipped)
  • Side mirrors
  • Adjustable pedals (if equipped)
    • A set of desired radio station presets

NOTE:

  • If equipped with power convex mirrors, these mirror positions will not set as part of a memory profile.
  • Your vehicle is equipped with two key fobs, one key fob can be linked to memory position 1 and the other key fob can be linked to memory position 2.

The driver memory settings switch is located on the driver door, next to the door handle, and consists of three buttons:

  • The set (S) button, which is used to activate the memory save function.
  • The (1) and (2) buttons which are used to recall either of two saved memory profiles.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Interior view of a vehicle air vent with control buttons and a black arrow pointing to the left side (no text or symbols on the diagram itself)

Driver Memory Settings Buttons

PROGRAMMING THE MEMORY FEATURE

To create a new memory profile, perform the following:

  1. Place the vehicle's ignition in the ON/RUN position (do not start the engine).

  2. Adjust all memory profile settings to desired preferences (i.e., driver's seat, outside mirrors, adjustable pedals (if equipped), and radio station presets).

  3. Push the set (S) button on the memory switch, and then push the desired memory button (1 or 2) within five seconds. The instrument cluster display will display which memory position has been set.

NOTE:

Memory profiles can be set without the vehicle in PARK.

LINKING AND UNLINKING THE REMOTE KEYLESS ENTRY KEY FOB TO MEMORY

Your key fob can be programmed to recall one of two saved memory profiles by pushing the unlock button on the key fob.

NOTE:

Before programming your key fob you must select the "Personal Settings Linked to Key Fob" feature through the Uconnect Settings → page 228.

To program your key fob, perform the following:

  1. Place the vehicle's ignition in the OFF position.
  2. Select a desired memory profile 1 or 2.
  3. Once the profile has been recalled, push and release the set (S) button on the memory switch.
  4. Push and release button (1) or (2) accordingly. "Memory Profile Set" (1 or 2) will display in the instrument cluster.
  5. Push and release the lock button on the key fob within 10 seconds.

NOTE:

Your key fob can be unlinked from your memory settings by pushing the set (S) button, and within 10 seconds, pushing the unlock button on the key fob.

MEMORY POSITION RECALL

NOTE:

The vehicle speed must be lower than 5 mph (8 km/h) to recall memory positions. If a recall is attempted when the vehicle speed is greater than 5 mph (8 km/h), a message will be displayed in the instrument cluster display.

To recall the memory settings for driver one or two, push the desired memory button number (1 or 2) or the unlock button on the key fob linked to the desired memory position.

A recall can be cancelled by pushing any of the memory buttons during a recall (S, 1, or 2). When a recall is canceled, the driver's seat and the adjustable pedals (if equipped) stop moving. A delay of one second will occur before another recall can be selected.

SEATS

Seats are a part of the Occupant Restraint System of the vehicle.

WARNING!

  • It is dangerous to ride in a cargo area, inside or outside of a vehicle. In a collision, people riding in these areas are more likely to be seriously injured or killed.
  • Do not allow people to ride in any area of your vehicle that is not equipped with seats and seat belts. In a collision, people riding in these areas are more likely to be seriously injured or killed.
  • Be sure everyone in your vehicle is in a seat and using a seat belt properly.

MANUAL FRONT SEAT ADJUSTMENT

Manual Front Seat Forward/Rearward Adjustment

Both front seats are adjustable forward or rearward. The manual seat adjustment handle is located under the seat cushion at the front edge of each seat.

RAM 4500 Chassis Cab (2021) - Manual Front Seat Forward/Rearward Adjustment - 1

natural_image Interior view of a car seat assembly with no visible text or symbols

Manual Seat Adjustment Bar

While sitting in the seat, pull up on the handle and slide the seat forward or rearward. Release the bar once you have reached the desired position. Then, using body pressure, move forward and rearward on the seat to be sure that the seat adjusters have latched.

WARNING!

  • Adjusting a seat while driving may be dangerous. Moving a seat while driving could result in loss of control which could cause a collision and serious injury or death.
  • Seats should be adjusted before fastening the seat belts and while the vehicle is parked. Serious injury or death could result from a poorly adjusted seat belt.

Manual Front Seat Recline Adjustment

The recline lever is located on the outboard side of the seat. To recline the seat, lean forward slightly, lift the lever, lean back to the desired position and release the lever. To return the seatback to its normal upright position, lean forward and lift the lever. Release the lever once the seat back is in the upright position.

RAM 4500 Chassis Cab (2021) - Manual Front Seat Recline Adjustment - 1

natural_image Interior view of a car's rearview seat with a highlighted component (no text or symbols visible)

Manual Recline Lever

WARNING!

  • Do not stand or lean in front of the seat while actuating the handle. The seatback may swing forward and hit you causing injury.
  • To avoid injury, place your hand on the seatback and actuate the handle, then position the seatback in the desired position.

40-20-40 Front Bench Seat — If Equipped

The seat is divided into three segments. The outboard seat portions are each 40% of the total width of the seat. On some models, the back of the center portion (20%) easily folds down to provide an armrest/center storage compartment.

POWER DRIVER SEAT ADJUSTMENT — IF EQUIPPED

Some models may be equipped with an eight-way power driver's seat. The power seat switches are located on the outboard side of the driver's seat cushion. There are two power seat switches that are used to control the movement of the seat cushion and the seatback.

RAM 4500 Chassis Cab (2021) - POWER DRIVER SEAT ADJUSTMENT — IF EQUIPPED - 1

text_image Diagram of car interior seating area with numbered labels pointing to seat and air conditioner unit

Power Seat Switches

1 - Power Seat Switch
2 — Power Seatback Switch

Adjusting The Seat Forward Or Rearward

The seat can be adjusted both forward and rearward by using the power seat switch. The seat will move in the direction of the switch. Release the switch when the desired position has been reached.

Adjusting The Seat Up Or Down

The height of the seats can be adjusted up or down by using the power seat switch. The seat will move in the direction of the switch. Release the switch when the desired position has been reached.

Tilting The Seat Up Or Down

The angle of the seat cushion can be adjusted up or down using the power seat switch. The front of the seat cushion will move in the direction of the switch. Release the switch when the desired position has been reached.

Reclining The Seatback

The angle of the seatback can be adjusted forward or rearward by using the power seat switch. The seat will move in the direction of the switch. Release the switch when the desired position is reached.

WARNING!

  • Adjusting a seat while driving may be dangerous. Moving a seat while driving could result in loss of control which could cause a collision and serious injury or death.
  • Seats should be adjusted before fastening the seat belts and while the vehicle is parked. Serious injury or death could result from a poorly adjusted seat belt.
  • Do not ride with the seatback reclined so that the shoulder belt is no longer resting against your chest. In a collision you could slide under the seat belt, which could result in serious injury or death.

CAUTION!

Do not place any article under a power seat or impede its ability to move as it may cause damage to the seat controls. Seat travel may become limited if movement is stopped by an obstruction in the seat's path.

36 GETTING TO KNOW YOUR VEHICLE

Power Lumbar — If Equipped

Vehicles equipped with power driver or passenger seats may also be equipped with power lumbar. The power lumbar switch is located on the outboard side of the power seat. Push the switch forward to increase the lumbar support. Push the switch rearward to decrease the lumbar support.

RAM 4500 Chassis Cab (2021) - Power Lumbar — If Equipped - 1

natural_image Interior view of a car showing a door panel with an arrow pointing to the interior (no text or symbols present)

Lumbar Control Switch

Easy Entry/Exit Seat

This feature provides automatic driver's seat positioning to enhance driver mobility when entering and exiting the vehicle.

The distance the driver's seat moves depends on where you have the driver's seat positioned when you remove the key fob from the ignition.

  • When you place the ignition in the OFF position, the driver's seat will move about 2.4 inches (60 mm) rearward if the driver's seat position is greater than or equal to 2.7 inches (67.7 mm) forward of the rear stop. The seat will return to its previously set position when you place the ignition into the ACC or RUN position.
  • When you place the ignition in the OFF position, the driver's seat will move to a position 0.3 inches (7.7 mm) forward of the rear stop if the driver's seat position is between 0.9 inches and 2.7 inches (22.7 mm and 67.7 mm) forward of the rear stop. The seat will return to its previously set position when you place the ignition to the ACC or RUN position.
  • The Easy Entry/Exit feature is disabled when the driver's seat position is less than 0.9 inches (22.7 mm) forward of the rear stop. At this position, there is no benefit to the driver by moving the seat for Easy Exit or Easy Entry.

When enabled in Uconnect Settings, Easy Entry and Easy Exit positions are stored in each memory setting profile ↩ page 32.

NOTE:

The Easy Entry/Exit feature is enabled or disabled through the programmable features in the Uconnect system ↩ page 228.

HEATED SEATS — IF EQUIPPED

On some models, the front and rear seats may be equipped with heaters located in the seat cushions and seat backs.

WARNING!

- Persons who are unable to feel pain to the skin because of advanced age, chronic illness, diabetes, spinal cord injury, medication, alcohol use, exhaustion or other physical condition must exercise care when using the seat heater. It may cause burns even at low temperatures, especially if used for long periods of time.

(Continued)

WARNING! (Continued)

- Do not place anything on the seat or seat-back that insulates against heat, such as a blanket or cushion. This may cause the seat heater to overheat. Sitting in a seat that has been overheated could cause serious burns due to the increased surface temperature of the seat.

Front Heated Seats

The heated seats control buttons are located on the center instrument panel below the touchscreen, and are also located within the climate or controls screen of the touchscreen.

  • Push the heated seat button once to turn the HI setting on.
  • Push the heated seat button a second time to turn the MED setting on.
  • Push the heated seat button—a third time to turn the LO setting on.
  • Push the heated seat button/ a fourth time to turn the heating elements off.

NOTE:

  • The engine must be running for the heated seats to operate.
  • The level of heat selected will stay on until the operator changes it.

For information on use with the Remote Start system, see ➤ page 21.

Rear Heated Seats

On some models, the two outboard rear seats are equipped with heated seats. The heated seat switches for these seats are located on the rear of the center console.

There are two heated seat switches that allow the rear passengers to operate the seats independently. You can choose from HI, MED, LO, or OFF heat settings. Amber indicator lights in each switch indicate the level of heat in use.

  • Push the heated seat button once to turn the HI setting on.
  • Push the heated seat button—a second time to turn the MED setting on.

  • Push the heated seat button, a third time to turn the LO setting on.

  • Push the heated seat button/ a fourth time to turn the heating elements off.

NOTE:

  • The level of heat selected will stay on until the operator changes it.
  • Once a heat setting is selected, heat will be felt within two to five minutes.
  • The engine must be running for the heated seats to operate.

VENTILATED SEATS — IF EQUIPPED

Front Ventilated Seats

Located in the seat cushion are small fans that draw the air from the passenger compartment and move air through fine perforations in the seat cover to help keep the driver and front passenger cooler in higher ambient temperatures. The fans operate at three speeds, HI, MED and LO.

The front ventilated seats control buttons are located on the center instrument panel below the touchscreen, and are also located within the climate or controls screen of the touchscreen.

  • Press the ventilated seat button* once to choose HI.
  • Press the ventilated seat button ^4 a second time to choose MED.
  • Press the ventilated seat button* a third time to choose LO.
  • Press the ventilated seat button* a fourth time to turn the ventilation off.

NOTE:

The engine must be running for the ventilated seats to operate.

For information on use with the Remote Start system, see ↩ page 21.

HEAD RESTRAINTS

Head restraints are designed to reduce the risk of injury by restricting head movement in the event of a rear impact. Head restraints should be adjusted so that the top of the head restraint is located above the top of your ear.

WARNING!

  • All occupants, including the driver, should not operate a vehicle or sit in a vehicle's seat until the head restraints are placed in their proper positions in order to minimize the risk of neck injury in the event of a crash.
  • Head restraints should never be adjusted while the vehicle is in motion. Driving a vehicle with the head restraints improperly adjusted or removed could cause serious injury or death in the event of a collision.

NOTE:

Do not reverse the head restraints (making the rear of the head restraint face forward) in an attempt to gain additional clearance to the back of your head.

Front Head Restraints

Four-Way Head Restraints — If Equipped

Your vehicle may be equipped with front four-way driver and passenger head restraints.

To raise the head restraint, pull upward on the head restraint. To lower the head restraint, push the adjustment button, located at the base of the head restraint, and push downward on the head restraint.

To adjust the head restraint forward, pull the top of the head restraint toward the front of the vehicle as desired and release. To adjust the head restraint rearward, pull the top of the head restraint to the forward most position and release. The head restraint will return to the rear most position.

RAM 4500 Chassis Cab (2021) - Front Head Restraints - 1

natural_image Interior view of a car showing a hand pressing down a seatbelt with an arrow indicating left side (no text or symbols)

Forward Adjustment

NOTE:

Four-way head restraints have seven tilt/locking positions. When pulling fully forward, the head restraint will spring back to the untilted, rearward most position when released.

Two-Way Head Restraints — If Equipped

Your vehicle may be equipped with front two-way driver and passenger head restraints.

To raise the head restraint, pull upward on the head restraint. To lower the head restraint, push the adjustment button, located at the base of head restraint, and push downward on the head restraint.

RAM 4500 Chassis Cab (2021) - Two-Way Head Restraints — If Equipped - 1

natural_image Interior view of a car showing the rear seat, headrest, and dashboard (no text or symbols visible)

Head Restraint Adjustment Button Location

NOTE:

If your vehicle is equipped with a front bench seat, the center head restraint is not adjustable or removable.

WARNING!

  • All occupants, including the driver, should not operate a vehicle or sit in a vehicle's seat until the head restraints are placed in their proper positions in order to minimize the risk of neck injury in the event of a crash.
  • Head restraints should never be adjusted while the vehicle is in motion. Driving a vehicle with the head restraints improperly adjusted or removed could cause serious injury or death in the event of a collision.

Front Head Restraint Removal

To remove the head restraint, push the adjustment button and the release button while pulling upward on the whole assembly. To reinstall the head restraint, put the head restraint posts into the holes and adjust it to the appropriate height.

WARNING!

  • A loose head restraint thrown forward in a collision or hard stop could cause serious injury or death to occupants of the vehicle. Always securely stow removed head restraints in a location outside the occupant compartment.
  • ALL the head restraints MUST be re-installed in the vehicle to properly protect the occupants. Follow the re-installation instructions above prior to operating the vehicle or occupying a seat.

Rear Head Restraint Adjustment

The rear seats are equipped with adjustable and removable head restraints. To raise the head restraint, pull upward on the head restraint. To lower the head restraint, push the adjustment button located on the base of the head restraint and push downward on the head restraint.

RAM 4500 Chassis Cab (2021) - Rear Head Restraint Adjustment - 1

natural_image Diagram of a mechanical assembly with two labeled components (1 and 2), no readable text or symbols present.

Release/Adjustment Buttons

1 - Release Button
2 - Adjustment Button

NOTE:

  • The rear center head restraint (Crew Cab) has only one adjustment position that is used to aid in the routing of a tether ➔ page 292.
  • Do not reposition the head restraint 180 degrees to the incorrect position in an attempt to gain additional clearance to the back of the head.

Rear Head Restraint Removal

To remove the head restraint, push the adjustment button and the release button while pulling upward on the whole assembly. To reinstall the head restraint, put the head restraint posts into the holes and adjust it to the appropriate height.

NOTE:

To remove outboard restraints, the rear seat bottom must be folded up.

WARNING!

  • A loose head restraint thrown forward in a collision or hard stop could cause serious injury or death to occupants of the vehicle. Always securely stow removed head restraints in a location outside the occupant compartment.
  • ALL the head restraints MUST be reinstalled in the vehicle to properly protect the occupants. Follow the re-installation instructions above prior to operating the vehicle or occupying a seat.

DRIVER ADJUSTABLE PEDALS — IF EQUIPPED

The adjustable pedals system is designed to allow a greater range of driver comfort for steering wheel tilt and seat position. This feature allows the brake and accelerator pedals to move toward or away from the driver to provide improved position with the steering wheel.

The adjustable pedal switch is located to the left side of the steering column.

RAM 4500 Chassis Cab (2021) - DRIVER ADJUSTABLE PEDALS — IF EQUIPPED - 1

natural_image Interior view of a vehicle dashboard with a close-up of the dashboard showing a small car icon (no text or symbols visible)

Adjustable Pedals Switch

The pedals can be adjusted with the ignition in the OFF position.

The pedals cannot be adjusted when the vehicle is in REVERSE or when the Cruise Control system is on. If there is an attempt to adjust the pedals when the system is locked out, the following messages will appear (on vehicles equipped with an instrument cluster display):

  • Adjustable Pedal Disabled — Cruise Control Engaged
  • Adjustable Pedal Disabled — Vehicle In Reverse

NOTE:

● Always adjust the pedals to a position that allows full movement of the pedal.
- Further small adjustments may be necessary to find the best possible seat/pedal position.
- For vehicles equipped with Driver Memory Settings, you can use your remote keyless entry key fob or the memory switch on the driver's door trim panel to return the adjustable pedals to saved positions ➕ page 32.

WARNING!

Do not adjust the pedals while the vehicle is moving. You could lose control and have an accident. Always adjust the pedals while the vehicle is parked.

CAUTION!

Do not place any article under the adjustable pedals or impede its ability to move, as it may cause damage to the pedal controls. Pedal travel may become limited if movement is stopped by an obstruction in the adjustable pedal's path.

MIRRORS

INSIDE REARVIEW MIRROR

Manual Mirror — If Equipped

The mirror head can be adjusted up, down, left, and right. The mirror should be adjusted to center on the view through the rear window.

Headlight glare from vehicles behind you can be reduced by moving the small control under the mirror to the night position (toward the rear of the vehicle). The mirror should be adjusted while set in the day position (toward the windshield).

RAM 4500 Chassis Cab (2021) - Manual Mirror — If Equipped - 1

natural_image Simple illustration of a car front mirror with an arrow pointing to the side (no text or symbols)

Adjusting Rearview Mirror

42 GETTING TO KNOW YOUR VEHICLE

Automatic Dimming Mirror — If Equipped

The mirror head can be adjusted up, down, left, and right. The mirror should be adjusted to center on the view through the rear window.

This mirror automatically adjusts for headlight glare from vehicles behind you.

NOTE:

The Automatic Dimming feature is disabled when the vehicle is in REVERSE to improve rear view viewing.

The Automatic Dimming feature can be turned on or off through the touchscreen.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Simple gray rectangular object with rounded corners and a central horizontal bar (no text or symbols)

A0215000015US
Automatic Dimming Mirror

CAUTION!

To avoid damage to the mirror during cleaning, never spray any cleaning solution directly onto the mirror. Apply the solution onto a clean cloth and wipe the mirror clean.

Automatic Dimming Mirror With Rear View Camera Display — If Equipped

A single ball joint mirror is provided in the vehicle. It is a twist on mirror that has a fixed position at the windshield. The mirror installs on the windshield button with a counterclockwise rotation and requires no tools for mounting. The mirror head can be adjusted up, down, left, and right for various drivers. The mirror should be adjusted to center on the view through the rear window.

This mirror automatically adjusts for headlight glare from vehicles behind you.

When the vehicle is placed into reverse gear, a video display illuminates to display the image generated by the rear view camera (for the 3500, 4500, and 5500 Chassis Cab vehicles, the Rear Backup Camera is shipped loose and not installed. Please refer to the Ram Body Builders Guide for more information). The auto dimming feature is also disabled to improve rear view viewing.

RAM 4500 Chassis Cab (2021) - Automatic Dimming Mirror With Rear View Camera Display — If Equipped - 1

natural_image Diagram of a curved mirror with an inset showing a dome-shaped object, no text or symbols present

A0215000046US
Automatic Dimming Mirror With Rear View Camera

Digital Rearview Mirror — If Equipped

The Digital Rearview Mirror provides a high definition, wide and unobstructed view of the road behind while driving.

To activate the Digital Rearview Mirror, push the control on the bottom of the mirror forward.

RAM 4500 Chassis Cab (2021) - Digital Rearview Mirror — If Equipped - 1

text_image 1 2 3 4 A0215000045US

Digital Rearview Mirror

1 - On/Off Control
2 - Menu Button
3 - Left Scroll Button
4 - Right Scroll Button

Push the menu button next to the on/off control to access the following mirror options:

  • Brightness
  • Tilt

Use the left and right buttons to scroll through menu options.

When not in use, pull the on/off control back toward the steering wheel to return the mirror to the regular Automatic Dimming Mirror.

NOTE:

The Digital Rearview Mirror is not as effective during night time driving in low light applications.

ILLUMINATED VANITY MIRROR — IF EQUIPPED

Illuminated vanity mirrors are located on each sun visor. To use the mirror, rotate the sun visor down and swing the mirror cover upward.

The lights will turn on automatically. Closing the mirror cover turns off the light.

RAM 4500 Chassis Cab (2021) - ILLUMINATED VANITY MIRROR — IF EQUIPPED - 1

natural_image Diagram of a car door handle with a curved arrow indicating direction (no text or symbols)

Lift Cover For Illuminated Mirror

"Slide-On-Rod" Features Of Sun Visor — If Equipped

The sun visor "Slide-On-Rod" feature allows for additional flexibility in positioning the sun visor to block out the sun.

  1. Fold down the sun visor.
  2. Unclip the visor from the corner clip.
  3. Pivot the sun visor toward the side window.

44 GETTING TO KNOW YOUR VEHICLE

  1. Extend the sun visor for additional sun blockage.

RAM 4500 Chassis Cab (2021) - GETTING TO KNOW YOUR VEHICLE - 1

natural_image Diagram of a car door with a handle and two arrows indicating left and right motion (no text or symbols)

"Slide-On-Rod" Extender

NOTE: The sun visor can also be extended while the sun visor is against the windshield for additional sun blockage through the front of the vehicle.

OUTSIDE MIRRORS

To receive maximum benefit, adjust the outside mirrors to center on the adjacent lane of traffic with a slight overlap of the view obtained on the inside mirror.

NOTE:

If your vehicle is equipped with puddle lamps under the outside mirrors, they can be turned off through the Uconnect system ➤ page 228.

WARNING!

Vehicles and other objects seen in the passenger side convex mirror will look smaller and farther away than they really are. Relying too much on your passenger side convex mirror could cause you to collide with another vehicle or other object. Use your inside mirror when judging the size or distance of a vehicle seen in the passenger side convex mirror. Some vehicles will not have a convex passenger side mirror.

DRIVER'S OUTSIDE AUTOMATIC DIMMING MIRROR — IF EQUIPPED

The driver's outside mirror will automatically adjust for glare from vehicles behind you. This feature is controlled by the inside automatic dimming mirror. The mirrors will automatically adjust for headlight glare when the inside mirror adjusts.

POWER MIRRORS — IF EQUIPPED

The controls for the power mirrors are located on the driver's door trim panel.

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Power Mirror Controls

1 - Mirror Direction Control
2 - Right Mirror Selection
3 - Left Mirror Selection

The power mirror controls consist of mirror select buttons and a four-way mirror control switch.

To adjust a mirror, push either the L (left) or R (right) button to select the mirror that you want to adjust.

Using the mirror control switch, push on any of the four arrows for the direction that you want the mirror to move.

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Power Mirror Movement

POWER CONVEX MIRROR SWITCH — IF EQUIPPED

The Power Convex Mirror Switch is located on the door trim panel, above the power mirror controls. The switch enables the movement of the convex portion of both the driver and passenger outside mirrors.

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Power Convex Mirror Switch

To adjust the convex portion of the outside mirrors, push the Power Convex Mirror Switch. Then, select the mirror you want to adjust by using the L (left) or R (right) buttons.

To return the control to the large mirror, push the Power Convex Mirror Switch a second time.

RAM 4500 Chassis Cab (2021) - POWER CONVEX MIRROR SWITCH — IF EQUIPPED - 2

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Trailer Tow Power Convex Mirror

NOTE:

If the Power Convex Mirror Switch is not pushed a second time, the switch will automatically default back to the larger portion of the outside mirrors after a period of time.

These mirrors are designed with an adjustable mirror head to provide a greater vision range when towing extra-wide loads. To change position inboard or outboard, the mirror head should be rotated (flipped in or out).

RAM 4500 Chassis Cab (2021) - NOTE: - 1

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Trailer Towing Position

NOTE:

Fold the trailer towing mirrors rearward prior to entering an automated car wash.

A small blindspot mirror is located next to the main mirror and can be adjusted manually.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

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Blindspot Mirror

HEATED MIRRORS — IF EQUIPPED

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These mirrors are heated to melt frost or ice. This feature will be activated whenever you turn on the rear window defroster (if equipped) ▶ page 58.

TILT SIDE MIRRORS IN REVERSE — IF EQUIPPED

This feature provides automatic outside mirror positioning which will assist with the driver's ground visibility. The outside mirrors will move slightly downward from the present position when the vehicle is shifted into REVERSE.

The outside mirrors will then return to the original position when the vehicle is shifted out of REVERSE. If the vehicle is equipped with Driver Memory Settings, this feature will be linked to the programmable settings.

NOTE:

The Tilt Side Mirrors In Reverse feature can be turned on and off using the Uconnect system ➤ page 228.

OUTSIDE MIRRORS FOLDING FEATURE

All outside mirrors are designed to be able to be manually folded both forward and rearward to prevent damage.

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Folding Mirror

CAUTION!

It is recommended to fold the mirrors into the full rearward position to resist damage when entering a car wash or a narrow location.

RAM 4500 Chassis Cab (2021) - UNIVERSAL GARAGE DOOR OPENER (HOMELINK®) — IF EQUIPPED - 1

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- HomeLink® replaces up to three hand-held transmitters that operate devices such as garage door openers, motorized gates, lighting, or home security systems. The HomeLink® unit is powered by your vehicles 12 Volt battery.

  • The HomeLink® buttons that are located in the overhead console or sunvisor designate the three different HomeLink® channels.
  • To operate HomeLink®, push and release any of the programmed HomeLink® buttons. These buttons will activate the devices they are programmed to with each press of the corresponding HomeLink® button.
  • The HomeLink® indicator light is located above the center button.

For efficient programming and accurate transmission of the radio frequency signal, it is recommended that a new battery be placed in the hand-held transmitter of the device that is being programmed to the HomeLink® system. Make sure your hand-held transmitter is programmed to activate the device you are trying to program your HomeLink® button to.

Ensure that your vehicle is parked outside of the garage before you begin programming.

It is recommended that you erase all the channels of your HomeLink® before you use it for the first time.

To erase the channels, follow this procedure:

  1. Place the ignition switch into the ON/RUN position.
  2. Push and hold the two outside HomeLink® buttons (I and III) for up to 20 seconds, or until the HomeLink® indicator light flashes.

NOTE:

Erasing all channels should only be performed when programming HomeLink® for the first time. Do not erase channels when programming additional buttons.

IDENTIFYING WHETHER YOU HAVE A ROLLING CODE OR NON-ROLLING CODE DEVICE

Before programming a device to one of your HomeLink® buttons, you must determine whether the device has a rolling code or non-rolling code.

Rolling Code Devices

To determine if your device has a rolling code, a good indicator is its manufacturing date. Typically, devices manufactured after 1995 have rolling codes. A device with a rolling code will also have a "LEARN" or "TRAIN" button located where the antenna is attached to the device. The button may not be immediately visible when looking at the device. The name and color of the button may vary slightly by manufacturer.

NOTE:

The "LEARN" or "TRAIN" button is not the button you normally use to operate the device.

Non-rolling Code Devices

Most devices manufactured before 1995 will not have a rolling code. These devices will also not have a "LEARN" or "TRAIN" button.

To program any of the HomeLink® buttons to activate your garage door opener motor, follow the steps below:

NOTE:

All HomeLink® buttons are programmed using this procedure. You do not need to erase all channels when programming additional buttons.

  1. Place the ignition switch into the ON/RUN position.
  2. Place the garage door opener transmitter 1 to 3 inches (3 to 8 cm) away from the HomeLink® button you wish to program, while keeping the HomeLink® indicator light in view.
  3. Push and hold the HomeLink® button you want to program while you push and hold the garage door opener transmitter button you are trying to replicate.

  4. Continue to hold both buttons and observe the HomeLink® indicator light. The HomeLink® indicator light will flash slowly and then rapidly. Once this happens, release both buttons.

NOTE:

Make sure the garage door opener motor is plugged in before moving on to the rolling code/non-rolling code final steps.

Rolling Code Garage Door Opener Final Steps

NOTE:

You have 30 seconds in which to initiate rolling code final step 2, after completing rolling code final step 1.

  1. At the garage door opener motor (in the garage), locate the "LEARN" or "TRAIN" button. This can usually be found where the hanging antenna wire is attached to the garage door opener motor. Firmly push and release the "LEARN" or "TRAIN" button.

  2. Return to the vehicle and push the programmed HomeLink® button three times (holding the button for two seconds each time). If the garage door opener motor operates, programming is complete.

  3. Push the programmed HomeLink® button to confirm that the garage door opener motor operates. If the garage door opener motor does not operate, repeat the final steps for the rolling code procedure.

Non-Rolling Code Garage Door Opener Final Steps

  1. Push and hold the programmed HomeLink® button and observe the HomeLink® indicator light. If the HomeLink® indicator light stays on constantly, programming is complete.
  2. Push the programmed HomeLink® button to confirm that the garage door opener motor operates. If the garage door opener motor does not operate, repeat the steps from the beginning.

WARNING!

  • Your motorized door or gate will open and close while you are programming the universal transceiver. Do not program the transceiver if people or pets are in the path of the door or gate.
  • Do not run your vehicle in a closed garage or confined area while programming the transceiver. Exhaust gas from your vehicle contains Carbon Monoxide (CO) which is odorless and colorless. Carbon Monoxide is poisonous when inhaled and can cause you and others to be severely injured or killed.

The procedure on how to program HomeLink® to a miscellaneous device follows the same procedure as programming to a garage door opener ➕ page 48. Be sure to determine if the device has a rolling code, or non-rolling code before beginning the programming process.

NOTE:

Canadian radio frequency laws require transmitter signals to time-out (or quit) after several seconds of transmission, which may not be long enough for HomeLink® to pick up the signal during programming. Similar to this Canadian law, some U.S. gate operators are designed to time-out in the same manner. The procedure may need to be performed multiple times to successfully pair the device to your HomeLink® buttons.

To reprogram a single HomeLink® button that has been previously trained, without erasing all the channels, follow the procedure below. Be sure to determine whether the new device you want to program the HomeLink® button to has a rolling code, or non-rolling code.

  1. Place the ignition in the ON/RUN position, without starting the engine.
  2. Push and hold the desired HomeLink® button until the HomeLink® Indicator light begins to flash after 20 seconds. Do not release the button.
  3. Without releasing the button, proceed with Step 2 in "Programming HomeLink® To A Garage Door Opener" → page 48, and follow all remaining steps.

CANADIAN /GATE OPERATOR PROGRAMMING

For programming transmitters in Canada/United States that require the transmitter signals to "time-out" after several seconds of transmission.

Canadian radio frequency laws require transmitter signals to time-out (or quit) after several seconds of transmission – which may not be long enough for HomeLink® to pick up the signal during programming. Similar to this Canadian law, some U.S. gate operators are designed to time-out in the same manner.

It may be helpful to unplug the device during the cycling process to prevent possible overheating of the garage door or gate motor.

  1. Place the ignition in the ON/RUN position.
  2. Place the hand-held transmitter 1 to 3 inches (3 to 8 cm) away from the HomeLink® button you wish to program while keeping the HomeLink® indicator light in view.
  3. Continue to press and hold the HomeLink® button, while you press and release (cycle) your hand-held transmitter every

two seconds until HomeLink® has successfully accepted the frequency signal. The indicator light will flash slowly and then rapidly when fully trained.

  1. Watch for the HomeLink® indicator to change flash rates. When it changes, it is programmed. It may take up to 30 seconds or longer in rare cases. The garage door may open and close while you are programming.
  2. Press and hold the programmed HomeLink® button and observe the indicator light.

NOTE:

  • If the indicator light stays on constantly, programming is complete and the garage door/device should activate when the HomeLink® button is pressed.
  • To program the two remaining HomeLink® buttons, repeat each step for each remaining button. DO NOT erase the channels.

If you unplugged the garage door opener/ device for programming, plug it back in at this time.

Reprogramming A Single HomeLink® Button (Canadian/Gate Operator)

To reprogram a channel that has been previously trained, follow these steps:

  1. Place the ignition in the ON/RUN position.
  2. Press and hold the desired HomeLink® button until the indicator light begins to flash after 20 seconds. Do not release the button.
  3. Without releasing the button, proceed with "Canadian/Gate Operator Programming" step 2 and follow all remaining steps page 449.

EXTERIOR LIGHTS

HEADLIGHT SWITCH

The headlight switch is located on the left side of the instrument panel. This switch controls the operation of the headlights, parking lights, automatic headlights (if equipped), instrument panel light dimming, cargo light/trailer spotter lights (if equipped), and fog lights (if equipped).

RAM 4500 Chassis Cab (2021) - HEADLIGHT SWITCH - 1

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Headlight Switch

1 – Rotate Headlight Control
2 — Ambient Light Dimmer Control
3 - Instrument Panel Dimmer Control
4 — Push Fog Light Switch
5 — Push Cargo Light Switch

To turn on the headlights, rotate the headlight switch clockwise. When the headlight switch is on, the parking lights, taillights, license plate light and instrument panel lights are also turned on. To turn off the headlights, rotate the headlight switch back to the O (off) position.

MULTIFUNCTION LEVER

The multifunction lever is located on the left side of the steering column.

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Multifunction Lever

DAYTIME RUNNING LIGHTS (DRLs)

The Daytime Running Lights (DRLs) come on whenever the engine is running, and the low beams are not on. The lights will remain on until the ignition is placed in the OFF or ACC position, or the parking brake is engaged.

NOTE:

  • For vehicles sold in Canada, the Daytime Running Lights will automatically deactivate when the front fog lights are turned on.
  • If allowed by law in the country in which the vehicle was purchased, the Daytime Running Lights can be turned on and off using the Uconnect system ↩ page 228.
  • On some vehicles, the Daytime Running Lights may deactivate, or reduce intensity, on one side of the vehicle (when a turn signal is activated on that side), or on both sides of the vehicle (when the hazard warning lights are activated).

Push the multifunction lever toward the instrument panel to switch the headlights to high beam. Pulling the multifunction lever back toward the steering wheel will turn the low beams back on.

AUTOMATIC HIGH BEAM HEADLAMP CONTROL — IF EQUIPPED

The Automatic High Beam Headlamp Control system provides increased forward lighting at night by automating high beam control through the use of a camera mounted on the inside rearview mirror or a windshield mounted camera. These cameras detect vehicle specific light and automatically switch from high beams to low beams until the approaching vehicle is out of view.

NOTE:

  • The Automatic High Beam Headlamp Control can be turned on or off by selecting "ON" under "Auto Dim High Beams" within your Uconnect Settings ↩ page 228, as well as turning the headlight switch to the AUTO position.
  • Broken, muddy, or obstructed headlights and taillights of vehicles in the field of view will cause headlights to remain on longer (closer to the vehicle). Also, dirt, film, and other obstructions on the windshield or camera lens will cause the system to function improperly.

  • If the windshield or Automatic High Beam Headlamp Control mirror is replaced, the mirror must be re-aimed to ensure proper performance. See a local authorized dealer.

  • To opt out of the Advanced Auto High Beam Sensitivity Control (default) and enter Reduced High Beam Sensitivity Control (not recommended), on vehicles equipped with mirror controlled automatic high beams and without the forward facing camera, toggle the high beam lever six full on/off cycles within 10 seconds of placing the ignition in the ON position. The system will return to the default setting when the ignition is placed in the OFF position.

FLASH-To-PASS

You can signal another vehicle with your headlights by lightly pulling the multifunction lever toward you. This will cause the high beam headlights to turn on, and remain on, until the lever is released.

AUTOMATIC HEADLIGHTS — IF EQUIPPED

This system automatically turns your headlights on or off based on ambient light levels. To turn the system on, rotate the headlight switch to the AUTO position.

When the system is on, the Headlight Delay feature is also on. This means the headlights will stay on for up to 90 seconds after you place the ignition into the OFF position. To turn the automatic headlights off, turn the headlight switch out of the AUTO position.

NOTE:

The engine must be running before the headlights will come on in the Automatic mode.

DIRECTIONAL LED HEADLAMP SYSTEM — IF EQUIPPED

This is a system consisting of LED (low/high beam) headlights that incorporate dynamic cornering with 5-degree inboard/15-degree outboard swivel. The headlights continuously and automatically adapt to the driving conditions around bends or when cornering based on steering wheel angle.

The system directs the headlights to light up the road in the best way, taking into account the speed of the vehicle and the bend or corner angle, as well as the speed of the vehicle while the steering wheel is being turned.

The adaptive lights are automatically activated when the vehicle is traveling above approximately 5 mph (8 km/h).

This system can be turned on/off through the Uconnect Settings under "Steering Directed Lights" ➕ page 228.

PARKING LIGHTS AND PANEL LIGHTS

To turn on the parking lights and instrument panel lights, rotate the headlight switch clockwise. To turn off the parking lights, rotate the headlight switch back to the O (off) position.

AUTOMATIC HEADLIGHTS WITH WIPERS

If your vehicle is equipped with Automatic Headlights, it also has this customer-programmable feature. When your headlights are in the automatic mode and the engine is running, they will automatically turn on when the wiper system is on. This feature is programmable through the Uconnect system → page 228. If your vehicle is equipped with the Rain Sensing Wiper system ➤ page 58, and it is activated, the headlights will automatically turn on after the wipers complete five wipe cycles within approximately one minute, and they will turn off approximately four minutes after the wipers completely stop.

NOTE:

When your headlights come on during the daytime, the instrument panel lights will automatically dim to the lower nighttime intensity.

HEADLIGHT DELAY

To assist when exiting the vehicle, the headlight delay feature will leave the headlights on for up to 90 seconds. This delay is initiated when the ignition is placed in the OFF position while the headlight switch is on, and then the headlight switch is cycled off. Headlight delay can be cancelled by either turning the headlight switch on then off, or by placing the ignition in the ON position.

NOTE:

  • This feature can be programmed through the Uconnect system ↩ page 228.
  • The headlight delay feature is automatically activated if the headlight switch is left in the AUTO position when the ignition is placed in the OFF position.

LIGHTS-ON REMINDER

If the headlights, parking lights, or cargo lights are left on after the ignition is placed in the OFF position, a chime will sound and a message will appear in the instrument cluster display when the driver's door is opened.

FRONT FOG LIGHTS — IF EQUIPPED

To activate the front fog lights, turn on the parking lights or low beam headlights and push in the center of the headlight switch control knob. Pushing the headlight switch control knob a second time will turn the front fog lights off.

RAM 4500 Chassis Cab (2021) - FRONT FOG LIGHTS — IF EQUIPPED - 1

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Front Fog Light Switch

TURN SIGNALS

Move the multifunction lever up or down to activate the turn signals. The arrows on each side of the instrument cluster flash to show proper operation.

NOTE:

If either light remains on and does not flash, or there is a very fast flash rate, check for a defective outside light bulb.

LANE CHANGE ASSIST — IF EQUIPPED

Lightly push the multifunction lever up or down, without moving beyond the detent, and the turn signal will flash three times then automatically turn off.

CARGO LIGHTS/TRAILER SPOTTER LIGHTS — IF EQUIPPED

The cargo lights (if equipped) and trailer spotter lights (if equipped) are turned on by pushing the cargo lights button located on the lower half of the headlight switch.

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Cargo Lights Button On Headlight Switch

The cargo lights will turn on for approximately 60 seconds when a key fob unlock button is pushed, as part of the Illuminated Entry feature.

When these lights are activated using the button on the headlight switch, the trailer spotter lights will remain illuminated when the vehicle transmission is in PARK, NEUTRAL, or REVERSE. The trailer spotter lights will turn off when the vehicle transmission is placed in DRIVE.

BATTERY SAVER

Timers are set to both the interior and exterior lights to protect the life of your vehicle's battery. If the ignition is OFF, the interior lights will automatically turn off when:

• Any door is left ajar for 10 minutes.
• The Dome Off button is pushed.
- The cargo and spotter lights are manually activated by the headlight switch.

NOTE:

Battery saver mode is canceled if the ignition is ON.

If the headlights remain on while the ignition is placed in the OFF position, the exterior lights will automatically turn off after eight minutes. If the headlights are turned on and left on for eight minutes while the ignition is OFF, the exterior lights will automatically turn off.

INTERIOR LIGHTS

COURTESY LIGHTS

The courtesy, dome, and cargo lights are turned on when any door is opened or the Dome On button is pushed on the overhead console. Also, if your vehicle is equipped with Remote Keyless Entry, and the unlock button is pushed on the key fob, the courtesy, dome, and cargo lights will turn on.

Courtesy/Reading Lights

The overhead console lights can also be operated individually as reading lights by pushing the corresponding buttons.

RAM 4500 Chassis Cab (2021) - Courtesy/Reading Lights - 1

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Front Courtesy/Reading Lights

1 – Driver's Reading Light On/Off Button
2 - Dome Off Button
3 - Dome On Button
4 – Passenger's Reading Light On/Off Button

NOTE:

On vehicles equipped with an LED overhead console, if both the Dome On and Dome Off buttons are pushed, the Illuminated Entry with door ajar feature will be disabled, but the Dome Lights inside the vehicle will turn on.

Three types of Rear Courtesy/Reading Lights are available for your vehicle:

  • Push button on/off
  • Push lens on/off
  • No on/off button, just Courtesy Light

NOTE:

The Rear Courtesy/Reading Lights will remain on until the switch is pushed a second time, so be sure they have been turned off before exiting the vehicle. If the interior lights are left on after the ignition is turned off, they will automatically turn off after 10 minutes.

Dimmer Control

The dimmer controls are part of the headlight switch and are located on the left side of the instrument panel.

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Dimmer Controls

1 - Ambient Light Control
2 - Instrument Panel Dimmer Control

With the parking lights or headlights on, rotating the right dimmer control upward will increase the brightness of the instrument panel lights. Rotating the left dimmer control will adjust the interior and ambient light levels.

NOTE:

The ambient lights are only active when the headlights or parking lights are on.

ILLUMINATED ENTRY

The courtesy lights will turn on when you use the key fob to unlock the doors (if the vehicle is equipped with remote power door locks) or open any door.

This feature also turns on the puddle lamps located beneath the outside mirrors (if equipped).

The lights will fade to off after approximately 30 seconds, or they will immediately fade to off once the ignition switch is turned to ON/RUN from the OFF position.

The front courtesy overhead console and door courtesy lights will not turn off if the Dome On button on the overhead console is pushed.

The illuminated entry system will not operate if the Dome Off button on the overhead console is pushed.

NOTE:

If your vehicle is equipped with Illuminated Approach lights under the outside mirrors, they will also be turned off by pushing the Dome Off button.

WINDSHIELD WIPERS AND WASHERS

The windshield wiper/washer controls are located on the multifunction lever on the left side of the steering column. The front wipers are operated by rotating a switch, located on the end of the lever.

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Windshield Wiper/Washer Lever

Rotate the end of the lever upward, to the first detent past the intermittent settings for low-speed wiper operation. Rotate the end of the lever upward to the second detent past the intermittent settings for high-speed wiper operation.

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Windshield Wiper/Washer Lever

Intermittent Wipers

The intermittent feature of this system was designed for use when weather conditions make a single wiping cycle, with a variable pause between cycles, desirable. For maximum delay between cycles, rotate the control knob upward to the first detent.

The delay interval decreases as you rotate the knob until it enters the low continual speed

position. The delay can be regulated from a maximum of about 18 seconds between cycles, to a cycle every one second. The delay intervals will double in duration when the vehicle speed is 10 mph (16 km/h) or less.

Windshield Washers

To use the windshield washer, push the washer knob, located on the end of the multifunction lever, inward to the second detent. Washer fluid will be sprayed and the wiper will operate for two to three cycles after the washer knob is released from this position.

If the washer knob is depressed while in the delay range, the wiper will operate for several seconds after the washer knob is released. It will then resume the intermittent interval previously selected. If the washer knob is pushed while in the off position, the wiper will turn on and cycle approximately three times after the wash knob is released.

To prevent freeze-up of your windshield washer system in cold weather, select a solution or mixture that meets or exceeds the temperature range of your climate. This rating information can be found on most washer fluid containers.

WARNING!

Sudden loss of visibility through the windshield could lead to a collision. You might not see other vehicles or other obstacles. To avoid sudden icing of the windshield during freezing weather, warm the windshield with the defroster before and during windshield washer use.

Mist

When a single wipe to clear off road mist or spray from a passing vehicle is needed, push the washer knob, located on the end of the multifunction lever, inward to the first detent and release. The wipers will cycle one time and automatically shut off.

NOTE:

The mist feature does not activate the washer pump; therefore, no washer fluid will be sprayed on the windshield. The wash function must be used in order to spray the windshield with washer fluid.

For information on wiper care and replacement, see ➔ page 380.

RAIN SENSING WIPERS — IF EQUIPPED

This feature senses rain or snowfall on the windshield and automatically activates the wipers. Rotate the end of the multifunction lever to one of five detent positions to activate this feature.

The sensitivity of the system can be adjusted with the multifunction lever. Wiper delay position 1 is the least sensitive, and wiper delay position 5 is the most sensitive. Position 3 should be used for normal rain conditions. Positions 1 and 2 can be used if the driver desires less wiper sensitivity. Positions 4 and 5 can be used if the driver desires more sensitivity. Place the wiper switch in the O (off) position when not using the system.

NOTE:

  • The Rain Sensing feature will not operate when the wiper switch is in the low or high-speed position.
  • The Rain Sensing feature may not function properly when ice, or dried salt water is present on the windshield.

  • Use of Rain-X or products containing wax or silicone may reduce Rain Sensing performance.

  • The Rain Sensing feature can be turned on and off using the Uconnect system ➤ page 228.

The Rain Sensing system has protection features for the wiper blades and arms, and will not operate under the following conditions:

  • Low Ambient Temperature — When the ignition is first placed in the ON position, the Rain Sensing system will not operate until the wiper switch is moved, vehicle speed is greater than 0 mph (0 km/h), or the outside temperature is greater than 32°F (0°C).
  • Transmission In NEUTRAL Position – When the ignition is ON, and the transmission is in the NEUTRAL position, the Rain Sensing system will not operate until the wiper switch is moved, vehicle speed is greater than 5 mph (8 km/h), or the gear selector is moved out of the NEUTRAL position.

- Remote Start Mode Inhibit — On vehicles equipped with Remote Starting system, Rain Sensing wipers are not operational when the vehicle is in the remote start mode. Once the operator is in the vehicle and has placed the ignition switch in the RUN position, Rain Sensing wiper operation can resume, if it has been selected, and no other inhibit conditions (mentioned previously) exist.

CLIMATE CONTROLS

The Climate Control system allows you to regulate the temperature, air flow, and direction of air circulating throughout the vehicle. The controls are located on the touchscreen (if equipped), on the sides of the touchscreen, or on the instrument panel below the radio.

AUTOMATIC CLIMATE CONTROL DESCRIPTIONS AND FUNCTIONS

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Uconnect 4/4C/4C NAV With 8.4-inch Display Automatic Temperature Controls

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Uconnect 4C NAV With 12-inch Display Automatic Temperature Controls

NOTE:

Icons and descriptions can vary based upon vehicle equipment.

MAX A/C Button

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Press and release the MAX A/C button on the touchscreen to change the current setting to the coldest output of air. The MAX A/C indicator

illuminates when MAX A/C is on. Pressing the button again will cause the MAX A/C operation to exit. Pressing other settings will also cause the MAX A/C to exit.

NOTE:

  • MAX A/C sets the control for maximum cooling performance.
  • The MAX A/C button is only available on the touchscreen.

A/C Button

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Press and release this button on the touchscreen, or push the button on the faceplate to change the current setting. The A/C indicator illuminates

when A/C is on.

Recirculation Button

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Press and release this button on the touchscreen, or push the button on the faceplate, to change the system between Recirculation mode and outside air

mode. The Recirculation indicator and the A/C indicator illuminate when the Recirculation button is pressed. Recirculation can be used when outside conditions, such as smoke, odors, dust, or high humidity are present. Recirculation can be used in all modes. Recirculation may be unavailable (button on the touchscreen greyed out) if conditions exist that could create fogging on the inside of the windshield. The A/C can be deselected manually without disturbing the mode control selection. Continuous use of the Recirculation mode may make the inside air stuffy and window fogging may occur. Extended use of this mode is not recommended.

In cold weather, use of Recirculation mode may lead to excessive window fogging. The Recirculation feature may be unavailable if conditions exist that could create fogging on the inside of the windshield.

Auto Button

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Set your desired temperature and press AUTO. AUTO will achieve and maintain your desired temperature by automatically adjusting the blower

speed and air distribution. AUTO mode is highly recommended for efficiency.

You can turn AUTO on in one of two ways:

  • Press and release this button on the touchscreen.
  • Push the button on the faceplate.

Toggling this function will cause the system to switch between manual mode and automatic mode > page 64.

Front Defrost Button

RAM 4500 Chassis Cab (2021) - Front Defrost Button - 1

Press and release the Front Defrost button on the touchscreen, or push and release the button on the faceplate, to change the current airflow setting

to Defrost mode. The Front Defrost indicator illuminates when Front Defrost is on. Air comes from the windshield and side window demist outlets. When the defrost button is selected, the blower level may increase. Use Defrost mode with maximum temperature settings for best windshield and side window defrosting and defogging. When toggling the front defrost mode button, the climate system will return to the previous setting.

Rear Defrost Button

RAM 4500 Chassis Cab (2021) - Rear Defrost Button - 1

Press and release the Rear Defrost button on the touchscreen, or push and release the button on the faceplate, to turn on the rear window

defroster and the heated outside mirrors (if equipped). The Rear Defrost indicator illuminates when the rear window defroster is on. The rear window defroster automatically turns off after 10 minutes.

CAUTION!

Failure to follow these cautions can cause damage to the heating elements:

- Use care when washing the inside of the rear window. Do not use abrasive window cleaners on the interior surface of the window. Use a soft cloth and a mild washing solution, wiping parallel to the heating elements. Labels can be peeled off after soaking with warm water.

(Continued)

CAUTION! (Continued)

  • Do not use scrapers, sharp instruments, or abrasive window cleaners on the interior surface of the window.
  • Keep all objects a safe distance from the window.

Driver And Passenger Temperature Up And Down Buttons

These buttons provide the driver and passenger with independent temperature control.

RAM 4500 Chassis Cab (2021) - Driver And Passenger Temperature Up And Down Buttons - 1

Push the red button (or rotate knob if equipped) on the faceplate or touchscreen, or press and slide the temperature bar towards the red

arrow button on the touchscreen for warmer temperature settings.

RAM 4500 Chassis Cab (2021) - Driver And Passenger Temperature Up And Down Buttons - 2

Push the blue button (or rotate knob if equipped) on the faceplate or touchscreen, or press and slide the temperature bar towards the blue

arrow button on the touchscreen for cooler temperature settings.

NOTE:

  • The numbers within the temperature display will only appear if the system is equipped with an automatic climate control system.
  • Up and down buttons are only available on vehicles equipped with a 12-inch display.

SYNC Button

RAM 4500 Chassis Cab (2021) - SYNC Button - 1

Press the SYNC button on the touchscreen to toggle the SYNC feature on/off. The SYNC indicator illuminates when SYNC is on. SYNC

synchronizes the passenger temperature setting with the driver temperature setting. Changing the passenger's temperature setting while in SYNC will automatically exit this feature.

NOTE:

The SYNC button is only available on the touchscreen.

Blower Control

RAM 4500 Chassis Cab (2021) - Blower Control - 1

Blower Control regulates the amount of air forced through the climate control system. There are seven blower speeds available. Adjusting the blower

will cause automatic mode to switch to manual

operation. The speeds can be selected using either the blower control knob on the faceplate or the buttons on the touchscreen.

Faceplate

The blower speed increases as you turn the blower control knob clockwise from the lowest blower setting. The blower speed decreases as you turn the blower control knob counterclockwise.

Touchscreen

Use the small blower icon to reduce the blower setting and the large blower icon to increase the blower setting. Blower can also be selected by pressing the blower bar area between the icons.

Mode Control

RAM 4500 Chassis Cab (2021) - Mode Control - 1

Select Mode by pressing one of the Mode buttons on the touchscreen, or pushing the Mode button on the faceplate, to change the airflow

distribution mode. The airflow distribution mode can be adjusted so air comes from the instrument panel outlets, floor outlets, defrost outlets, and demist outlets.

Faceplate

Push the Mode Button to change the airflow distribution mode. The airflow distribution mode can be adjusted so air comes from the instrument panel outlets, floor outlets, defrost outlets and demist outlets.

Touchscreen

Press one of the "MODE" buttons to change the airflow distribution mode. The airflow distribution mode can be adjusted so air comes from the instrument panel outlets, floor outlets, defrost outlets and demist outlets.

Panel Mode

RAM 4500 Chassis Cab (2021) - Panel Mode - 1

Air comes from the outlets in the instrument panel. Each of these outlets can be individually adjusted to direct the flow of air. The air vanes of

the center outlets and outboard outlets can be moved up and down or side to side to regulate airflow direction. There is a shut off wheel located below the air vanes to shut off or adjust the amount of airflow from these outlets.

Bi-Level Mode

RAM 4500 Chassis Cab (2021) - Bi-Level Mode - 1

Air comes from the instrument panel outlets and floor outlets. A slight amount of air is directed through the defrost and side window demister outlets.

NOTE:

Bi-Level mode is designed under comfort conditions to provide cooler air out of the panel outlets and warmer air from the floor outlets.

Floor Mode

RAM 4500 Chassis Cab (2021) - Floor Mode - 1

Air comes from the floor outlets. A slight amount of air is directed through the defrost and side window demister outlets.

Mix Mode

RAM 4500 Chassis Cab (2021) - Mix Mode - 1

Air is directed through the floor, defrost, and side window demister outlets. This setting works best in cold or snowy conditions that require extra

heat to the windshield. This setting is good for maintaining comfort while reducing moisture on the windshield.

Climate Control OFF Button

RAM 4500 Chassis Cab (2021) - Climate Control OFF Button - 1

Press and release the OFF button on the touchscreen, or push the OFF button on the faceplate (if equipped) to turn the Climate Control on/off.

MANUAL CLIMATE CONTROL DESCRIPTIONS AND FUNCTIONS

RAM 4500 Chassis Cab (2021) - MANUAL CLIMATE CONTROL DESCRIPTIONS AND FUNCTIONS - 1

natural_image Interior view of a car dashboard with air conditioner and control panel (no visible text or symbols)

Uconnect 3 With 5-Inch Display Manual Temperature Controls

MAX A/C Setting

RAM 4500 Chassis Cab (2021) - MAX A/C Setting - 1

Set the temperature control knob to the MAX A/C setting to change the current setting to the coldest output of air. Moving the temperature control

knob away from the MAX A/C setting causes the MAX A/C operation to exit.

A/C Button

RAM 4500 Chassis Cab (2021) - A/C Button - 1

Push the A/C button to engage the Air Conditioning (A/C). The A/C indicator illuminates when A/C is on.

Recirculation Button

RAM 4500 Chassis Cab (2021) - Recirculation Button - 1

Push the Recirculation button to change the system between recirculation mode and outside air mode. The Recirculation indicator and the A/C indicator illuminate

when the Recirculation button is pressed. Recirculation can be used when outside conditions, such as smoke, odors, dust, or humidity are present. Recirculation can be used in all modes except for Defrost. Recirculation may be unavailable if conditions exist that could create fogging on the inside of the windshield. The A/C can be deselected manually without disturbing the mode control selection. Continuous use of the Recirculation mode may make the inside air stuffy and window fogging may occur. Extended use of this mode is not recommended.

On vehicles equipped with the Manual Climate Controls system, the Recirculation mode is not allowed in Defrost mode to improve window clearing operation. Recirculation is disabled automatically if this mode is selected.

Attempting to use Recirculation while in this mode causes the LED in the control button to link, and then turn off.

Front Defrost Setting

RAM 4500 Chassis Cab (2021) - Front Defrost Setting - 1

Turn the mode control knob to the Front Defrost mode setting. Air comes from the windshield and side window demist outlets. When the defrost

button is selected, the blower level may increase. Use Defrost mode with maximum temperature settings for best windshield and side window defrosting and defogging.

Rear Defrost Button

RAM 4500 Chassis Cab (2021) - Rear Defrost Button - 1

Push and release the Rear Defrost Control button to turn on the rear window defroster and the heated outside mirrors (if equipped). The Rear

Defrost indicator illuminates when the rear window defroster is on. The rear window defroster automatically turns off after 10 minutes.

CAUTION!

Failure to follow these cautions can cause damage to the heating elements:

  • Use care when washing the inside of the rear window. Do not use abrasive window cleaners on the interior surface of the window. Use a soft cloth and a mild washing solution, wiping parallel to the heating elements. Labels can be peeled off after soaking with warm water.
  • Do not use scrapers, sharp instruments, or abrasive window cleaners on the interior surface of the window.
  • Keep all objects a safe distance from the window.

Temperature Control

Temperature Control regulates the temperature of the air forced through the climate system.

RAM 4500 Chassis Cab (2021) - Temperature Control - 1

The temperature increases as you turn the temperature control knob clockwise.

RAM 4500 Chassis Cab (2021) - Temperature Control - 2

The temperature decreases as you turn the temperature control knob counterclockwise.

Blower Control

RAM 4500 Chassis Cab (2021) - Blower Control - 1

Blower Control regulates the amount of air forced through the climate control system. There are seven blower speeds available. The blower

speed increases as you turn the blower control knob clockwise from the lowest blower setting. The blower speed decreases as you turn the blower control knob counterclockwise.

Mode Control

RAM 4500 Chassis Cab (2021) - Mode Control - 1

Turn the mode control knob to adjust airflow distribution. The airflow distribution mode can be adjusted so air comes from the instrument panel

outlets, floor outlets, defrost outlets and demist outlets.

Panel Mode

RAM 4500 Chassis Cab (2021) - Panel Mode - 1

Air comes from the outlets in the instrument panel. Each of these outlets can be individually adjusted to direct the flow of air. The air vanes of

the center outlets and outboard outlets can be moved up and down or side to side to regulate airflow direction. There is a shut off wheel located below the air vanes to shut off or adjust the amount of airflow from these outlets.

Bi-Level Mode

RAM 4500 Chassis Cab (2021) - Bi-Level Mode - 1

Air comes from the instrument panel outlets and floor outlets. A slight amount of air is directed through the defrost and side window demister outlets.

NOTE:

Bi-Level mode is designed under comfort conditions to provide cooler air out of the panel outlets and warmer air from the floor outlets.

Floor Mode

RAM 4500 Chassis Cab (2021) - Floor Mode - 1

Air comes from the floor outlets. A slight amount of air is directed through the defrost and side window demister outlets.

Mix Mode

RAM 4500 Chassis Cab (2021) - Mix Mode - 1

Air is directed through the floor, defrost, and side window demister outlets. This setting works best in cold or snowy conditions that require extra

heat to the windshield. This setting is good for maintaining comfort while reducing moisture on the windshield.

AUTOMATIC TEMPERATURE CONTROL (ATC)

Automatic Operation

  1. Push the AUTO button on the faceplate, or the AUTO button on the touchscreen on the Automatic Temperature Control (ATC) Panel.

  2. Next, adjust the temperature you would like the system to maintain by adjusting the driver and passenger temperature control buttons. Once the desired temperature is displayed, the system will achieve and automatically maintain that comfort level.

  3. When the system is set up for your comfort level, it is not necessary to change the settings. You will experience the greatest efficiency by simply allowing the system to function automatically.

NOTE:

  • It is not necessary to move the temperature settings for cold or hot vehicles. The system automatically adjusts the temperature, mode, and blower speed to provide comfort as quickly as possible.
  • The temperature can be displayed in U.S. or Metric units by selecting the U.S./Metric within Uconnect Settings → page 228.

To provide you with maximum comfort in the Automatic mode during cold start-ups, the blower fan will remain on low until the engine warms up. The blower will increase in speed and transition into Auto mode.

Manual Operation Override

This system offers a full complement of manual override features. The AUTO symbol in the front ATC display will be turned off when the system is being used in the manual mode.

Adjust vehicle temperatures hands-free and keep everyone comfortable while you keep moving ahead.

Push the VR button on the steering wheel. After the beep, say one of the following commands:

  • "Set driver temperature to 70 degrees"
  • "Set passenger temperature to 70 degrees"

Did you know: Voice Command for Climate may only be used to adjust the interior temperature of your vehicle. Voice Command will not work to adjust the heated seats or steering wheel if equipped.

OPERATING TIPS

NOTE:

Refer to the chart at the end of this section for suggested control settings for various weather conditions.

Summer Operation

The engine cooling system must be protected with a high-quality antifreeze coolant to provide proper corrosion protection and to protect against engine overheating. OAT coolant (conforming to MS.90032) is recommended.

Winter Operation

To ensure the best possible heater and defroster performance, make sure the engine cooling system is functioning properly and the proper amount, type, and concentration of coolant is used. Use of the Air Recirculation mode during Winter months is not recommended, because it may cause window fogging.

Vacation/Storage

For information on maintaining the Climate Control system when the vehicle is being stored for an extended period of time, see ↗ page 427.

Window Fogging

Vehicle windows tend to fog on the inside in mild, rainy, and/or humid weather. To clear the windows, select Defrost or Mix mode and increase the front blower speed. Do not use the Recirculation mode without A/C for long periods, as fogging may occur.

Outside Air Intake

Make sure the air intake, located directly in front of the windshield, is free of obstructions, such as leaves. Leaves collected in the air intake may reduce airflow, and if they enter the plenum, they could plug the water drains.

In Winter months, make sure the air intake is clear of ice, slush, and snow.

Cabin Air Filter

The climate control system filters out dust and pollen from the air. Contact an authorized dealer to service your cabin air filter, and to have it replaced when needed.

Operating Tips Chart

WEATHER CONTROL SETTINGS
Hot Weather And Vehicle Interior Is Very HotSet the mode control to 📋 on and blower on high. Roll down the windows for a minute to flush out the hot air. Adjust the controls as needed to achieve comfort.
Warm WeatherTurn 📋 on and set the mode control to the 🔊 position.
Cool SunnyOperate in 🔊 position.
Cool & Humid ConditionsSet the mode control to position and turn on to keep windows clear.
Cold WeatherSet the mode control to the position.If windshield fogging starts to occur, move the control to the position.

INTERIOR STORAGE AND EQUIPMENT

STORAGE

Glove Compartment

The glove compartment is located on the passenger side of the instrument panel and features both an upper and lower storage area.

NOTE:

Not all vehicles are equipped with a door over the upper storage area.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image Diagram of car interior with numbered components and license plate text

Glove Compartment

1 — Upper Glove Compartment Release Button (If Equipped)
2 — Upper Glove Compartment
3 - Lower Glove Compartment

If equipped with a covered upper glove compartment, push the release button to open.

To open the lower glove compartment, pull the release handle.

WARNING!

Do not operate this vehicle with a glove compartment in the open position. Driving with the glove compartment open may result in injury in a collision.

Door Storage

Front Door Storage — If Equipped

Storage areas and bottle holders (driver's side only) are located in the door trim panels.

Rear Door Storage — If Equipped

Storage compartments are located in both the driver and passenger rear door trim panels.

Center Storage Compartment — If Equipped

The center storage compartment is located between the driver and passenger seats. The storage compartment provides an armrest and contains both an upper and lower storage area.

RAM 4500 Chassis Cab (2021) - Center Storage Compartment — If Equipped - 1

natural_image Interior view of a car dashboard with a black arrow pointing to the seat area (no text or symbols visible)

Center Storage Compartment

WARNING!

- This armrest is not a seat. Anyone seated on the armrest could be seriously injured during vehicle operation, or a collision.

(Continued)

WARNING! (Continued)

- In a collision, the latch may open if the total weight of the items stored exceeds about 10 lbs (4.5 kg). These items could be thrown about endangering occupants of the vehicle. Items stored should not exceed a total of 10 lbs (4.5 kg).

Pull the upper handle on the front of the armrest to raise the cover. The upper storage area contains a USB port that can be used to power small electrical devices.

RAM 4500 Chassis Cab (2021) - WARNING! (Continued) - 1

natural_image Interior view of a car showing the seatbelt and dashboard area with a close-up inset (no text or symbols)

Center Storage Compartment

1 – Upper Console Handle
2 - Lower Console Handle

RAM 4500 Chassis Cab (2021) - WARNING! (Continued) - 2

natural_image Interior view of a car seatbelt with a close-up inset showing a device (no text or symbols visible)

Upper Storage USB Port

With the upper lid closed, pull the lower handle to open the lower storage bin. The lower bin contains a power inverter. There is also a "fill line" located along the rear inside wall of the lower bin. Contents above the "fill line" may interfere with cupholder placement if equipped with a premium center console.

RAM 4500 Chassis Cab (2021) - WARNING! (Continued) - 3

text_image Technical diagram of a vehicle interior with numbered components and reference number A0242000061U5

Forward Portion Of Lower Storage Bin

1 – Wireless Charging Pad
2 - Power Inverter
3 - Storage Area

WARNING!

Do not operate this vehicle with a console compartment lid in the open position. Driving with the console compartment lid open may result in injury in a collision.

Premium Center Console — If Equipped

The premium center console is equipped with two front storage bins located in front of the center storage compartment. These storage bins may be equipped with tandem doors. Push the front bin to access the cupholders, or push the rear bin to access the coin holder/small storage bin.

RAM 4500 Chassis Cab (2021) - Premium Center Console — If Equipped - 1

text_image Diagram of car interior with numbered components and license plate text

Center Console Tandem Doors— If Equipped

1 – Push Front Bin Access
2 - Push Rear Bin Access

RAM 4500 Chassis Cab (2021) - Premium Center Console — If Equipped - 2

text_image Diagram of car interior showing labeled parts with numbers 1 and 2, likely indicating engine or component identifiers.

Tandem Doors Open Position

1 - Front Bin Open
2 - Rear Bin Open

Push the release button at the front of the cupholder bin to slide tray rearward to access the front lower storage bin, or forward to access the rear lower storage bin.

RAM 4500 Chassis Cab (2021) - Premium Center Console — If Equipped - 3

natural_image Interior view of a car showing dashboard and seat area with a black arrow pointing to a component (no text or symbols visible)

Push Release Button To Slide Tray

Overhead Sunglass Storage

At the front of the overhead console, a compartment is provided for the storage of one pair of sunglasses.

From the closed position, push the door latch to open the compartment.

RAM 4500 Chassis Cab (2021) - Overhead Sunglass Storage - 1

natural_image Interior view of a car dashboard with vent and doorways (no text or symbols visible)

Overhead Sunglass Door

The door will slowly rotate to the full open position.

Front Bench Seat Storage — If Equipped

If your vehicle is equipped with a front bench seat, storage can be found by folding down the center seat back. A console storage area and cupholders are available. With the seatback in the upright position, lifting the seat bottom also reveals a storage location.

RAM 4500 Chassis Cab (2021) - Front Bench Seat Storage — If Equipped - 1

natural_image Interior view of a car seatbelt with a black arrow pointing to the seatbelt (no text or symbols visible)

Front Bench Seat Storage Location

If equipped, there is a storage drawer located in the lower center of the instrument panel. It can be released by pushing the access button above it. Pull drawer outward to the fully open position.

RAM 4500 Chassis Cab (2021) - Front Bench Seat Storage — If Equipped - 2

natural_image Interior view of a car dashboard with control panel and infotainment device (no visible text or symbols)

Storage Drawer Access Button

70 GETTING TO KNOW YOUR VEHICLE

Seatback Storage — If Equipped

Located in the back of both the driver and passenger front seats are pockets that can be used for storage.

RAM 4500 Chassis Cab (2021) - Seatback Storage — If Equipped - 1

natural_image Interior view of a car dashboard with a black arrow pointing to the dashboard area (no text or symbols visible)

Driver's Side Seatback Storage

Storage Bin (Regular Cab)

The storage bin is located behind the front seats and runs the length of the cab.

RAM 4500 Chassis Cab (2021) - Storage Bin (Regular Cab) - 1

natural_image Interior view of an airplane cabin with luggage doors and a black arrow pointing to the seat area (no text or symbols)

Storage Bin

Fold Flat Load Floor — If Equipped

Crew Cab models with a 60/40 rear seat may be equipped with a folding load floor.

WARNING!

Do not operate the vehicle with loose items stored on the load floor. While driving or in an accident you may experience abrupt stopping, rapid acceleration, or sharp turns. Loose objects stored on the load floor may move around with force and strike occupants, resulting in serious or fatal injury.

Unfolding The Load Floor/Crew Cab

  1. Lift the 60/40 seat cushion(s) to the upward position.

RAM 4500 Chassis Cab (2021) - Unfolding The Load Floor/Crew Cab - 1

natural_image Interior view of a car showing a vehicle's rear compartment with two directional arrows indicating flow or movement (no text or symbols present)

Load Floor Legs In Stowed Position

  1. Unfold both the legs using the straps.

RAM 4500 Chassis Cab (2021) - Unfolding The Load Floor/Crew Cab - 2

natural_image Interior view of a vehicle showing two car seats mounted on a platform, with no visible text or symbols.

Load Floor Legs In Opened Position

  1. Lift the front panel until the load floor unfolds into position.

RAM 4500 Chassis Cab (2021) - Unfolding The Load Floor/Crew Cab - 3

natural_image Interior view of a car showing the rear seats and a small table with an arrow pointing to the seat (no text or symbols present)

Load Floor In Open Position

  1. Reverse the procedure to store the load floor.

Positioning The Load Floor For Storage Access Under The Seat

  1. Lift the 60/40 seat cushion(s) to the upward position.
  2. Unsnap the securing snap located at either side of the load floor.
  3. Lift the load floor up to access storage under the load floor.

WARNING!

Do not drive with the load floor in the up position. When stopping fast or in an accident, the load floor could move to the down position causing serious injury.

RAM 4500 Chassis Cab (2021) - WARNING! - 1

natural_image Interior view of a vehicle showing seatbelt and passenger seat (no text or symbols visible)

Load Floor Securing Straps/Crew Cab

  1. Reverse the procedure to put the load floor back in the secured down position before you operate the vehicle.

Below Rear Seat Storage (Crew Cab)

The Crew Cab models provide additional storage under the rear seats. Lift the seats to access the storage compartment.

To open the storage compartments, unsnap the securing snap located at either side of the load floor and lift upward on the fold flat lid.

RAM 4500 Chassis Cab (2021) - Below Rear Seat Storage (Crew Cab) - 1

natural_image Diagram of a vehicle interior with a black arrow indicating clockwise motion (no text or symbols)

Crew Cab Storage

NOTE:

For more information on storage and the fold flat floor, refer to "Fold Flat Load Floor" in the previous section.

72 GETTING TO KNOW YOUR VEHICLE

USB/AUX CONTROL

Located on the center stack, just below the instrument panel, is the main media hub. There are four total USB ports: Two Mini-USBs (Type C) and two Standard USBs (Type A). There is also an AUX port located in the middle of the USB Ports.

Plugging in a smartphone device to a USB port may activate Android Auto™ or Apple CarPlay® features, if equipped. For further information, refer to "Android Auto™" or "Apple CarPlay®" in the Owner's Manual Supplement.

NOTE:

Two devices can be plugged in at the same time, and both ports will provide charging capabilities. Only one port can transfer data to the system at a time. A pop-up will appear and allow you to select the device transferring data.

For example, if a device is plugged into the Type A USB port and another device is plugged into the Type C USB port, a message will appear and allow you to select which device to use.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image Diagram of car interior showing labeled components with numbered annotations pointing to a vehicle panel

Center Stack USB/AUX Media Hub

1 - USB Port #1
2 - AUX Port
3 - USB Port #2

RAM 4500 Chassis Cab (2021) - NOTE: - 2

text_image Diagram of car interior with labeled buttons and control panel, showing two numbered UI elements in a vehicle (1 and 2)

Rear USB Ports

1 – Rear Media USB Ports
2 — Rear Charge Only USB Ports

Third and fourth USB ports are located behind the center console, above the power inverter. One of these USBs ports is charge only.

Applicable to only Uconnect 4C/4C NAV With 8.4-inch Display, and Uconnect 4C NAV With 12-inch Display radios, different scenarios are listed below when a non-phone device is plugged into the smaller and larger USB ports, and when a phone device is plugged into the smaller and larger USB ports:

  • "A new device is now connected. Previous connection was lost".
  • “(Phone Name) now connected. Previous connection was lost”.
  • "Another device is in use through the same USB port. Please disconnect the first device to use the second device".

Plugging in a phone or another USB device may cause the connection to a previous device to be lost.

If equipped, your vehicle may also contain a USB port located on the top tray of the vehicles center console.

If equipped, two Mini-USB Ports (Type C), two Standard USB Ports (Type A), and one AUX port may be located to the left of the center stack, just below the climate controls.

RAM 4500 Chassis Cab (2021) - NOTE: - 3

text_image 1 2 3 1 2 A0422000050U5

Center Console USB/AUX Media Hub

1 – Standard USB Type A Ports
2 - Mini-USB Type C Ports
3 - AUX Port

Some USB ports support media and charging. You can use features, such as Apple CarPlay®, Android Auto™, Pandora®, and others while charging your phone.

NOTE:

Plugging in a phone or another USB device may cause the connection to a previous device to be lost. For further information, refer to the Uconnect Owner's Manual Supplement or visit UconnectPhone.com.

ELECTRICAL POWER OUTLETS

The auxiliary 12 Volt (13 Amp) power outlet can provide power for in-cab accessories designed for use with the standard "cigarette lighter" style plug. The 12 Volt power outlets and 5 Volt (2.5 Amp) USB port (Charge Only) have a cap attached to the outlet indicating "12V DC", together with either a key symbol, battery symbol, or USB symbol.

A key symbol indicates that the ignition must be in the ON/RUN or ACC positions for the outlet to provide power. The battery symbol indicates that the outlet is connected to the battery, and can provide power at all times.

CAUTION!

- Do not exceed the maximum power of 160 Watts (13 Amps) at 12 Volts. If the 160 Watts (13 Amps) power rating is exceeded, the fuse protecting the system will need to be replaced.

(Continued)

CAUTION! (Continued)

- Power outlets are designed for accessory plugs only. Do not insert any other object in the power outlets as this will damage the outlet and blow the fuse. Improper use of the power outlet can cause damage not covered by your New Vehicle Limited Warranty.

An auxiliary power outlet can be found in the tray on top of the center stack. This power outlet works when the ignition is in the ON/RUN, ACC, or OFF position.

RAM 4500 Chassis Cab (2021) - CAUTION! (Continued) - 1

natural_image Interior view of a car dashboard with air vent and 12V DC indicator (no text or symbols on main components)

Power Outlet — Top Of Center Stack

74 GETTING TO KNOW YOUR VEHICLE

Power Outlet Fuse Locations:

● F104 Fuse 20 A Yellow UCI Port/ USB Rear Center Console
- F90 Fuse 20 A Yellow Instrument Panel Power Outlet Battery Fed (If Equipped)
● F91 Fuse 20 A Yellow Instrument Panel Power Outlet Ignition Fed (If Equipped)
- F93 Fuse 20 A Yellow Cigar Lighter/ Instrument Panel Power Outlet (If Equipped)

When the vehicle is turned off, be sure to unplug any equipment as to not drain the battery of the vehicle. All accessories connected to the outlet(s) should be removed or turned off when the vehicle is not in use to protect the battery against discharge.

WARNING!

To avoid serious injury or death:

  • Only devices designed for use in this type of outlet should be inserted into any 12 Volt outlet.
  • Do not touch with wet hands.
  • Close the lid when not in use and while driving the vehicle.
  • If this outlet is mishandled, it may cause an electric shock and failure.

CAUTION!

  • Many accessories that can be plugged in draw power from the vehicle's battery, even when not in use (i.e., cellular phones, etc.). Eventually, if plugged in long enough, the vehicle's battery will discharge sufficiently to degrade battery life and/or prevent the engine from starting.
  • Accessories that draw higher power (i.e., coolers, vacuum cleaners, lights, etc.), will discharge the battery even more quickly. Only use these intermittently and with greater caution.
  • After the use of high power draw accessories, or long periods of the vehicle not being started (with accessories still plugged in), the vehicle must be driven a sufficient length of time to allow the generator to recharge the vehicle's battery.

POWER INVERTER — IF EQUIPPED

If equipped, a 115 Volt (400 Watts Maximum) inverter may be located inside the center console towards the right hand side, just under the Wireless Charging Pad (if equipped). This inverter can power cellular phones, electronics and other low power devices requiring power up to 400 Watts. Certain high-end video game consoles exceed this power limit, as will most power tools.

RAM 4500 Chassis Cab (2021) - POWER INVERTER — IF EQUIPPED - 1

text_image T18V AC 450 W A0242000238US

Center Console Power Inverter Outlet

There is also a second 115 Volt (400 Watts Maximum) power inverter located on the rear of the center console. This inverter can power cellular phones, electronics and other low power devices requiring power up to 400 Watts.

Certain high-end video game consoles exceed this power limit, as will most power tools.

All power inverters are designed with built-in overload protection. If the power rating of 400 Watts is exceeded, the power inverter shuts down. Once the electrical device has been removed from the outlet the inverter should reset.

RAM 4500 Chassis Cab (2021) - POWER INVERTER — IF EQUIPPED - 2

text_image 115V AC 400 W A0242000048U5

Rear Center Console Power Inverter Outlet

NOTE:

400 Watts is the maximum for the inverter, not each outlet. If three outlets are in use, 400 Watts is shared amongst the devices plugged in.

If equipped, there may be a 115 Volt (400 Watts Maximum) inverter located to the right of the center stack, just below the climate controls. This inverter can power cellular phones, electronics and other low power devices requiring power up to 400 Watts. Certain high-end video game consoles exceed this power limit, as will most power tools.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Interior view of a car dashboard with steering wheel, dashboard controls, and a digital display (no visible text or symbols)

Center Stack Power Inverter

To turn on the power outlet, simply plug in the device. The outlet turns off when the device is unplugged.

NOTE:

  • The power inverter only turns on if the ignition is in the ACC or ON/RUN position.
  • Due to built-in overload protection, the power inverter shuts down if the power rating is exceeded.

WARNING!

To avoid serious injury or death:

  • Do not insert any objects into the receptacles.
  • Do not touch with wet hands.
  • Close the lid when not in use.
  • If this outlet is mishandled, it may cause an electric shock and failure.

WIRELESS CHARGING PAD — IF EQUIPPED

RAM 4500 Chassis Cab (2021) - WIRELESS CHARGING PAD — IF EQUIPPED - 1

natural_image Interior view of a car dashboard with steering wheel and monitor, showing a close-up of the dashboard screen (no visible text or symbols)

Wireless Charging Pad

Your vehicle may be equipped with a 15W 3A Qi wireless charging pad located inside of the center console. This charging pad is designed to wirelessly charge your Qi enabled mobile phone. Qi is a standard that uses magnetic induction to transfer power to your mobile device.

Your mobile phone must be designed for Qi wireless charging. If the phone is not equipped with Qi wireless charging functionality, an aftermarket sleeve or a specialized back plate

can be purchased from your mobile phone provider or a local electronics retailer. Please see your phone's owner's manual for further information.

The wireless charging pad is equipped with an anti-slip mat, an adjustable cradle to hold your mobile phone in place and an LED indicator light.

NOTE:

Using a phone case may interfere with wireless charging.

CAUTION!

The key fob should not be placed on the charging pad or within 15 cm (150 mm) of it. Doing so can cause excessive heat buildup and damage to the fob. Placing the fob in close proximity of the charging pad blocks the fob from being detected by the vehicle and prevents the vehicle from starting.

WINDOWS

POWER WINDOWS — IF EQUIPPED

The window controls on the driver's door control all the door windows.

RAM 4500 Chassis Cab (2021) - POWER WINDOWS — IF EQUIPPED - 1

natural_image Diagram of a car interior with control panel and directional arrows, no readable text or symbols

Power Window Switches

The passenger door windows can also be operated by using the single window controls on the passenger door trim panel. The window controls will operate only when the ignition is in the ACC or ON/RUN position.

To open the window part way (manually), push the window switch down briefly and release.

NOTE:

The power window switches will remain active for up to 10 minutes after the ignition is placed in the OFF position. Opening either front door will cancel this feature. The timing is programmable within Uconnect Settings → page 228.

WARNING!

Never leave children unattended in a vehicle. Do not leave the key fob in or near the vehicle or in a location accessible to children, and do not leave the ignition of a vehicle equipped with Keyless Enter-N-Go in the ACC or ON/RUN mode. Occupants, particularly unattended children, can become entrapped by the windows while operating the power window switches. Such entrapment may result in serious injury or death.

AUTOMATIC WINDOW FEATURES — IF EQUIPPED

Auto-Down Feature

The driver and front passenger door power window switches have an Auto-Down feature. Push the window switch down for a short period of time, then release, and the window will go down automatically.

To stop the window from going all the way down during the Auto-Down operation, pull up or push down on the switch briefly.

Auto-Up Feature With Anti-Pinch Protection

Lift the window switch up for a short period of time and release; the window will go up automatically.

To stop the window from going all the way up during the Auto-Up operation, push down on the switch briefly.

To close the window part way, lift the window switch briefly and release it when you want the window to stop.

If the window runs into any obstacle during auto-closure, it will reverse direction and then go back down. Remove the obstacle and use the window switch again to close the window.

NOTE:

Any impact due to rough road conditions may trigger the auto-reverse function unexpectedly during auto-closure. If this happens, pull the switch lightly and hold to close the window manually.

WARNING!

There is no anti-pinch protection when the window is almost closed. To avoid personal injury be sure to clear your arms, hands, fingers and all objects from the window path before closing.

RESET AUTO-UP

Should the Auto-Up feature stop working, the window probably needs to be reset. To reset Auto-Up:

  1. Pull the window switch up to close the window completely and continue to hold the switch up for an additional two seconds after the window is closed.

  2. Push the window switch down firmly to open the window completely and continue to hold the switch down for an additional two seconds after the window is fully open.

WINDOW LOCKOUT SWITCH — IF EQUIPPED

The window lockout switch on the driver's door trim panel allows you to disable the window controls on the rear passenger doors. To disable the window controls, push and release the window lockout button (the indicator light on the button will turn on). To enable the window controls, push and release the window lockout button again (the indicator light on the button will turn off).

RAM 4500 Chassis Cab (2021) - WINDOW LOCKOUT SWITCH — IF EQUIPPED - 1

natural_image Diagram of a car dashboard with directional arrows indicating movement (no text or symbols)

Window Lockout Switch

The switch for the power sliding rear window is located on the overhead console. Push the switch rearward to open the glass. Pull the switch forward to close the glass.

RAM 4500 Chassis Cab (2021) - WINDOW LOCKOUT SWITCH — IF EQUIPPED - 2

natural_image Top-down view of a car interior panel with a black arrow pointing to the center (no text or symbols visible)

Power Sliding Rear Window Switch

MANUAL SLIDING REAR WINDOW — IF EQUIPPED

A locking device in the center of the window helps to prevent entry from the rear of the vehicle. Squeeze the lock to release the window.

WIND BUFFETING

Wind buffeting can be described as the perception of pressure on the ears or a helicopter-type sound in the ears. Your vehicle may exhibit wind buffeting with the windows down, or the sunroof (if equipped) in certain open or partially open positions. This is a normal occurrence and can be minimized. If the buffeting occurs with the rear windows open, open the front and rear windows together to minimize the buffeting. If the buffeting occurs with the sunroof open, adjust the sunroof opening to minimize the buffeting or open any window.

HOOD

To Open The Hood

To open the hood, two latches must be released.

  1. Pull the hood release lever located below the steering wheel at the base of the instrument panel.

RAM 4500 Chassis Cab (2021) - To Open The Hood - 1

natural_image Mechanical component diagram showing a belt drive mechanism with a black arrow indicating direction (no text or symbols)

Hood Release

  1. Reach into the opening beneath the center of the hood and push the safety latch lever to the left to release it, before raising the hood.

RAM 4500 Chassis Cab (2021) - To Open The Hood - 2

text_image A0237000026US

Safety Latch Location

To Close The Hood

Hoods equipped with gas props are closed from the point where the props no longer hold the hood open.

WARNING!

Be sure the hood is fully latched before driving your vehicle. If the hood is not fully latched, it could open when the vehicle is in motion and block your vision. Failure to follow this warning could result in serious injury or death.

CAUTION!

To prevent possible damage, do not slam the hood to close it. Use a firm downward push at the front center of the hood to ensure that both latches engage.

GETTING TO KNOW YOUR INSTRUMENT PANEL

BASE / MIDLINE INSTRUMENT CLUSTER — GASOLINE
RAM 4500 Chassis Cab (2021) - GETTING TO KNOW YOUR INSTRUMENT PANEL - 1

text_image Diagram of a car dashboard with seven labeled gauges and speedometer, showing front, rear, side, and interior views.

A0301000057US
Base / Midline Instrument Cluster – Gasoline

BASE / MIDLINE INSTRUMENT CLUSTER DESCRIPTIONS

1. Tachometer

- Indicates the engine speed in revolutions per minute (RPM x 1000).

2. Voltmeter

- When the vehicle is in the RUN state, the gauge indicates the electrical system voltage. The pointer should stay within the normal range if the battery is charged. If the pointer moves to either extreme left or right and remains there during normal driving, the electrical system should be serviced.

3. Instrument Cluster Display

- When the appropriate conditions exist, this display shows the instrument cluster display messages → page 90.

RAM 4500 Chassis Cab (2021) - Instrument Cluster Display - 1

natural_image Interior view of a car steering wheel with labeled components (no text or symbols beyond labels)

Base Instrument Cluster Display

1 - Instrument Cluster Display Controls

2 - Instrument Cluster Display Screen

- The display always shows one of the main menu item after ignition on.

GETTING TO KNOW YOUR INSTRUMENT PANEL 81

4. Oil Pressure Gauge

- The pointer should always indicate the oil pressure when the engine is running. A continuous high or low reading under normal driving conditions may indicate a lubrication system malfunction. Immediate service should be obtained from an authorized dealer.

5. Speedometer

- Indicates vehicle speed.

82 GETTING TO KNOW YOUR INSTRUMENT PANEL

6. Temperature Gauge

  • The gauge pointer shows engine coolant temperature. The pointer positioned within the normal range indicates that the engine cooling system is operating satisfactorily.
  • The gauge pointer will likely indicate a higher temperature when driving in hot weather, up mountain grades, or when towing a trailer. It should not be allowed to exceed the upper limits of the normal operating range.

WARNING!

A hot engine cooling system is dangerous. You or others could be badly burned by steam or boiling coolant. It is recommended to call an authorized dealer for service if your vehicle overheats. If you decide to look under the hood yourself, Follow the warnings under the Cooling System Pressure Cap paragraph ↩ page 383.

CAUTION!

Driving with a hot engine cooling system could damage your vehicle. If the temperature gauge reads "H," pull over and stop the vehicle. Idle the vehicle with the air conditioner turned off until the pointer drops back into the normal range. If the pointer remains on the "H," turn the engine off immediately and call an authorized dealer for service.

7. Fuel Gauge

- The pointer shows the level of fuel in the fuel tank when the ignition is in the ON/RUN position.

RAM 4500 Chassis Cab (2021) - Fuel Gauge - 1

● The fuel pump symbol points to the side of the vehicle where the fuel door is located.

PREMIUM INSTRUMENT CLUSTER — GASOLINE

RAM 4500 Chassis Cab (2021) - PREMIUM INSTRUMENT CLUSTER — GASOLINE - 1

text_image Diagram of a car dashboard with labeled components including speedometer, MPH, and RPM indicators

A0301000059US
Premium Instrument Cluster – Gasoline

84 GETTING TO KNOW YOUR INSTRUMENT PANEL

PREMIUM INSTRUMENT CLUSTER DESCRIPTIONS

1. Tachometer

- Indicates the engine speed in revolutions per minute (RPM x 1000).

2. Instrument Cluster Display

- When the appropriate conditions exist, this display shows the instrument cluster display messages ↩ page 90.

RAM 4500 Chassis Cab (2021) - Instrument Cluster Display - 1

natural_image Interior view of a car steering wheel with labeled components (no text or symbols beyond labels)

Premium Instrument Cluster Display

1 - Instrument Cluster Display Controls
2 - Instrument Cluster Display Screen

- The display always shows one of the main menu item after ignition on.

3. Speedometer

- Indicates vehicle speed.

4. Temperature Gauge

  • The gauge pointer shows engine coolant temperature. The pointer positioned within the normal range indicates that the engine cooling system is operating satisfactorily.
  • The gauge pointer will likely indicate a higher temperature when driving in hot weather, up mountain grades, or when towing a trailer. It should not be allowed to exceed the upper limits of the normal operating range.

WARNING!

A hot engine cooling system is dangerous. You or others could be badly burned by steam or boiling coolant. It is recommended to call an authorized dealer for service if your vehicle overheats. If you decide to look under the hood yourself, Follow the warnings under the Cooling System Pressure Cap paragraph ↻ page 383.

CAUTION!

Driving with a hot engine cooling system could damage your vehicle. If the temperature gauge reads "H," pull over and stop the vehicle. Idle the vehicle with the air conditioner turned off until the pointer drops back into the normal range. If the pointer remains on the "H," turn the engine off immediately and call an authorized dealer for service.

5. Fuel Gauge

- The pointer shows the level of fuel in the fuel tank when the ignition is in the ON/RUN position.

RAM 4500 Chassis Cab (2021) - Fuel Gauge - 1

● The fuel pump symbol points to the side of the vehicle where the fuel door is located.

BASE / MIDLINE INSTRUMENT CLUSTER — DIESEL

RAM 4500 Chassis Cab (2021) - BASE / MIDLINE INSTRUMENT CLUSTER — DIESEL - 1

text_image 1 2 3 4 5 6 7 A0301990017US

Base / Midline Diesel Instrument Cluster – Diesel

DIESEL INSTRUMENT CLUSTER

1. Tachometer

- Indicates the engine speed in revolutions per minute (RPM x 1000).

2. Engine Coolant Temperature

- This gauge shows the engine coolant temperature. The gauge pointer will likely show higher temperatures when driving in hot weather, up mountain grades, or in heavy stop and go traffic. If the red Warning Light turns on while driving, safely bring the vehicle to a stop, and turn off the engine. DO NOT operate the vehicle until the cause is corrected.

WARNING!

A hot engine cooling system is dangerous. You or others could be badly burned by steam or boiling coolant. It is recommended to call an authorized dealer for service if your vehicle overheats.

CAUTION!

Driving with a hot engine cooling system could damage your vehicle. If the temperature gauge reads greater "H," pull over and stop the vehicle. Idle the vehicle with the air conditioner turned off until the pointer drops back into the normal range. If the pointer remains on the "h," turn the engine off immediately and call an authorized dealer for service.

3. Instrument Cluster Display

- When the appropriate conditions exist, this display shows the instrument cluster display messages ➤ page 90.

RAM 4500 Chassis Cab (2021) - Instrument Cluster Display - 1

natural_image Interior view of a car steering wheel with labeled components (no text or symbols beyond labels)

Base Instrument Cluster Display

1 - Instrument Cluster Display Controls

2 - Instrument Cluster Display Screen

- The display always shows one of the main menu item after ignition on.

4. Oil Pressure Gauge

- The pointer should always indicate some oil pressure when the engine is running. A continuous high or low reading under normal driving conditions may indicate a lubrication system malfunction. Immediate service should be obtained from an authorized dealer.

5. Speedometer

- Indicates vehicle speed.

6. Diesel Exhaust Fluid (DEF) Gauge

- The DEF Gauge displays the actual level of Diesel Exhaust Fluid in the DEF tank. DEF is required to maintain normal vehicle operation and emissions compliance. If something is wrong with the gauge, a DEF Warning Message or Malfunction Indicator Light (MIL) will be displayed. More information is available in the instrument cluster display section under the heading of DEF Warning Messages.

7. Fuel Gauge

- The pointer shows the level of fuel in the fuel tank when the ignition switch is in the ON/RUN position.

RAM 4500 Chassis Cab (2021) - Fuel Gauge - 1

- The fuel pump symbol points to the side of the vehicle where the fuel filler door is located.

NOTE:

  • The gauge may take up to five seconds to update after adding a gallon or more of DEF to the DEF tank. If you have a fault related to the DEF system, the gauge may not update to the new level. See an authorized dealer for service.
  • The DEF gauge may also not immediately update after a refill if the temperature of the DEF fluid is below 39^ F ( 4^ C). The DEF tank heater will possibly warm up the DEF fluid and allow the gauge to update after a period of run time. Under very cold conditions, it is possible that the gauge may not reflect the new fill level for several drives.

PREMIUM INSTRUMENT CLUSTER — DIESEL

RAM 4500 Chassis Cab (2021) - PREMIUM INSTRUMENT CLUSTER — DIESEL - 1

text_image Diagram of a car dashboard with labeled parts including front, rear, side, and interior gauges with numerical scales.

Premium Instrument Cluster – Diesel

DIESEL INSTRUMENT CLUSTER

  1. Tachometer

- Indicates the engine speed in revolutions per minute (RPM x 1000).

  1. Instrument Cluster Display

- When the appropriate conditions exist, this display shows the instrument cluster display messages ➤ page 90.

RAM 4500 Chassis Cab (2021) - DIESEL INSTRUMENT CLUSTER - 1

text_image Diagram of a car steering wheel with labeled parts, showing dashboard and steering wheel layout

Premium Instrument Cluster Display

1 - Instrument Cluster Display Controls

2 - Instrument Cluster Display Screen

- The display always shows one of the main menu item after ignition on.

  1. Speedometer

- Indicates vehicle speed.

  1. Diesel Exhaust Fluid (DEF) Gauge

- The DEF Gauge displays the actual level of Diesel Exhaust Fluid in the DEF tank. DEF is required to maintain normal vehicle operation and emissions compliance. If something is wrong with the gauge, a DEF Warning Message or Malfunction Indicator Light (MIL) will be displayed. More information is available in the instrument cluster display section under the heading of Diesel Exhaust Fluid (DEF) Warning Messages.

  1. Fuel Gauge

- The pointer shows the level of fuel in the fuel tank when the ignition switch is in the ON/RUN position.

RAM 4500 Chassis Cab (2021) - DIESEL INSTRUMENT CLUSTER - 2

● The fuel pump symbol points to the side of the vehicle where the fuel filler door is located.

GETTING TO KNOW YOUR INSTRUMENT PANEL 89

NOTE:

- The DEF tank on these vehicles is designed with a large amount of full reserve. So the level sensor will indicate a full reading even before the tank is completely full. To put it another way, there's additional storage capacity in the tank above the Full mark that's not represented in the gauge. You may not see any movement in the reading – even after driving up to 200 miles (321 kilometers) in some cases.

- The gauge may take up to five seconds to update after adding a gallon or more of DEF to the DEF tank. If you have a fault related to the DEF system, the gauge may not update to the new level. See an authorized dealer for service.

- The DEF gauge may also not immediately update after a refill if the temperature of the DEF fluid is below 39^ F ( 4^ C). The DEF tank heater will possibly warm up the DEF fluid and allow the gauge to update after a period of run time. Under very cold conditions, it is possible that the gauge may not reflect the new fill level for several drives.

90 GETTING TO KNOW YOUR INSTRUMENT PANEL

INSTRUMENT CLUSTER DISPLAY

Your vehicle is equipped with an instrument cluster display, which offers useful information to the driver. With the ignition in the OFF mode, opening/closing of a door will activate the display for viewing, and display the total miles, or kilometers, in the odometer. Your instrument cluster display is designed to display important information about your vehicle's systems and features. Using a driver interactive display located on the instrument panel, your instrument cluster display can show you how systems are working and give you warnings when they are not. The steering wheel mounted controls allow you to scroll through the main menus and submenus. You can access the specific information you want and make selections and adjustments.

INSTRUMENT CLUSTER DISPLAY CONTROLS

The instrument cluster display features a driver interactive display that is located in the instrument cluster.

RAM 4500 Chassis Cab (2021) - INSTRUMENT CLUSTER DISPLAY CONTROLS - 1

natural_image Interior view of a car steering wheel with labeled components (no text or symbols beyond labels)

Base Instrument Cluster Display

1 - Instrument Cluster Display Controls

2 - Instrument Cluster Display Screen

RAM 4500 Chassis Cab (2021) - INSTRUMENT CLUSTER DISPLAY CONTROLS - 2

natural_image Interior view of a car steering wheel with labeled components (no text or symbols beyond labels)

Premium Instrument Cluster Display
1 - Instrument Cluster Display Controls
2 - Instrument Cluster Display Screen

The instrument cluster display menu items may consist of the following:

  • Speedometer
  • Vehicle Info
  • Off-Road — If Equipped
  • Driver Assist — If Equipped
  • Fuel Economy
  • Trip Info

  • Trailer Tow

  • Audio
  • Messages
  • Screen Set Up
  • Vehicle Settings – If Equipped
    • Commercial Settings – If Equipped

The system allows the driver to select information by pushing the following instrument cluster display control buttons located on the left side of the steering wheel:

RAM 4500 Chassis Cab (2021) - INSTRUMENT CLUSTER DISPLAY CONTROLS - 3

natural_image Close-up of a car air conditioner control panel with buttons and display (no readable text or symbols)

Instrument Cluster Display Control Buttons

  • Up Arrow Button
    Push and release the up arrow button to scroll upward through the main menu items, submenu screen, and vehicle settings.
  • Down Arrow Button

Push and release the down arrow button to scroll downward through the main menu items, submenu screen, and vehicle settings.

- Right Arrow Button

Push and release the right arrow button to access/select the information screens or submenu screens of a main menu item.

Push and hold the right arrow button for two seconds to reset displayed/selected features that can be reset.

- Left Arrow Button

Push and release the left arrow button to access/select the information screens, submenu screens of a main menu item, or to return to the main menu.

OIL LIFE RESET

Your vehicle is equipped with an engine oil change indicator system. The "Oil Change Required" message will display in the instrument cluster display after a single chime has sounded, to indicate the next scheduled oil change interval. The engine oil change indicator system is duty cycle based, which means the engine oil change interval may fluctuate, dependent upon your personal driving style.

NOTE:

Use the steering wheel instrument cluster display controls for the following procedure.

Oil Life Reset Procedure

  1. Without pushing the brake pedal, push the ENGINE START/STOP button and place the ignition to the ON/RUN position (do not start the engine).
  2. Push and release the down arrow button to scroll downward through the main menu to "Vehicle Info."
  3. Push and release the right arrow button to access the "Vehicle Info" screen, then scroll up or down to select "Oil Life."

92 GETTING TO KNOW YOUR INSTRUMENT PANEL

  1. Push and hold the right arrow button to select "Reset".
  2. Push and release the down arrow button to select "Yes," then push and release the right arrow button to reset the Oil Life to 100%.
  3. Push and release the up arrow button to exit the instrument cluster display screen.

Secondary Method Of Resetting Engine Oil Life

  1. Without pressing the brake pedal, push the ENGINE START/STOP button and place the ignition to the ON/RUN position (do not start the engine).
  2. Fully press the accelerator pedal, slowly, three times within ten seconds.
  3. Without pushing the brake pedal, push the ENGINE START/STOP button once to return the ignition to the OFF/LOCK position.

NOTE:

If the indicator message illuminates when you start the vehicle, the oil change indicator system did not reset. If necessary, repeat this procedure.

DISPLAY MENU ITEMS

Push and release the up or down arrow button until the desired selectable menu icon is highlighted in the instrument cluster display.

Speedometer

Push and release the up or down arrow button until the speedometer menu item is highlighted in the instrument cluster display. Push and release the right arrow button to cycle the display between mph and km/h.

Vehicle Info

Push and release the up or down arrow button until the Vehicle Info menu item is highlighted in the instrument cluster display. Push and release the right arrow button to enter the submenus items of Vehicle Info. Follow the directional prompts to access or reset any of the following Vehicle Info submenu items:

  • Tire Pressure
  • Coolant Temperature
    ● Transmission Temperature — If Equipped
  • Oil Temperature

  • Oil Pressure

  • Exhaust Brake — If Equipped
  • Boost Pressure — If Equipped
    • Diesel Particulate Filter (DPF) — If Equipped
  • Oil Life
  • Fuel Filter Life — If Equipped
  • Battery Voltage
  • Gauge Summary
  • Engine Hours

Off-Road

Push and release the up or down arrow button until the Off-Road menu icon is displayed in the instrument cluster display. Push and release the left or right arrow button to scroll through the information submenus.

- Drivetrain

- Front Wheel Angle: displays the graphical and numerical value of calculated average front wheel angle from the steering wheel orientation.

  • Transfer Case Lock Status: displays "Lock" graphic only during 4WD High, 4WD High Part Time, 4WD Low status.
  • Axle Lock And Sway Bar Status (If Equipped): displays front and rear or rear only axle locker graphic, and sway bar connection graphic with text message (connected or disconnected).

- Pitch And Roll

- Displays the pitch and roll of the vehicle in the graphic with the angle number on the screen.

NOTE:

When vehicle speed becomes too high to display the pitch and roll, “--” will display in place of the numbers, and the graphic will be greyed out. A message indicating the necessary speed for the feature to become available will also display.

Driver Assist — If Equipped

The Driver Assist menu displays the status of the ACC system.

Push and release the up or down arrow button until the Driver Assist menu is displayed in the instrument cluster display.

Adaptive Cruise Control (ACC) Feature

The instrument cluster display displays the current ACC system settings. The information displayed depends on ACC system status.

Push the ACC on/off button (located on the steering wheel) until one of the following displays in the instrument cluster display:

Adaptive Cruise Control Off

When ACC is deactivated, the display will read "Adaptive Cruise Control Off."

Adaptive Cruise Control Ready

When ACC is activated but the vehicle speed setting has not been selected, the display will read "Adaptive Cruise Control Ready."

Push the SET + or the SET- button (located on the steering wheel) and the following will display in the instrument cluster display:

ACC SET

When ACC is set, the set speed will display in the instrument cluster.

The ACC screen may display once again if any ACC activity occurs, which may include any of the following:

• Distance Setting Change
- System Cancel
- Driver Override
- System Off
- ACC Proximity Warning
- ACC Unavailable Warning

NOTE:

The instrument cluster display will return to the last display selected after five seconds of no ACC display activity ➤ page 166.

LaneSense — If Equipped

The instrument cluster display displays the current LaneSense system settings.

The information displayed depends on LaneSense system status and the conditions that need to be met ➤ page 183.

Fuel Economy

Push and release the up or down arrow button until the Fuel Economy menu item is highlighted in the instrument cluster display. Push and Hold the right arrow button to reset Average Fuel Economy.

• Current Fuel Economy Gauge
• Average Fuel Economy Value
- Range To Empty
- Fuel Tank Levels – If Equipped

Trip A/Trip B

Push and release the up or down arrow button until the Trip menu item is highlighted in the instrument cluster display. Push and release the right arrow button to enter the submenus of Trip A and Trip B. The Trip A or Trip B information will display the following:

  • Distance
    • Average Fuel Economy
  • Elapsed Time

Push and hold right arrow button to reset all information.

Trailer Tow

Push and release the up or down arrow button until the Trailer Tow menu item is highlighted in the instrument cluster display.

Push and release the right or left arrow button to cycle through the following trailer tow information:

  • Trip (trailer specific) Distance: Push and hold the OK button to reset the distance.
  • Integrated Trailer Brake Module (ITBM):

- Braking Output

- Trailer Type

- ITBM Gain

  • Trailer Light Check: Push and hold the OK button to begin the Trailer Light Test sequence ➤ page 209.
  • Trailer Tire Pressure Monitoring: The Instrument Cluster Display will display the Trailer Tire Pressure for a connected trailer with sensors that match the active trailer profile. When a low tire is present, the low tire value will be displayed in red, and the affected low

tire will have a red glow. "Trailer Tire Low" will be displayed on the center bottom of the Instrument Cluster Display screen.

Audio

Push and release the up or down arrow button until the Audio Menu icon/title is highlighted in the instrument cluster display. This menu will display the audio source information, including the Song name, Artist name, and audio source with an accompanying graphic.

Phone Call Status

When a call is incoming, a Phone Call Status pop-up will display on the screen. The pop-up will remain until the phone is answered or ignored.

NOTE:

The call status will temporarily replace the previous media source information displayed on the screen. When the pop-up is no longer displayed, the display will return to the last used screen.

Stored Messages

Push and release the up or down arrow button until the Messages Menu item is highlighted. This feature shows the number of stored warning messages. Push and release the right ▶ or left ◀ arrow button to cycle through stored messages.

Screen Setup Menu Item

Push and release the up or down arrow button until the Screen Setup menu item is highlighted in the instrument cluster display. Push and release the right arrow button to enter the Screen Setup submenu. The Screen Setup feature allows you to change what information is displayed in the instrument cluster as well as the location that information is displayed.

Current Gear — If Equipped

  • Off
  • On

Odometer

  • Unit Without Decimal
  • Unit With Decimal

Favorite Menu

  • Speedometer
  • Vehicle Info
  • Driver Assist (Show/Hide) — If Equipped
  • Fuel Economy (Show/Hide)
  • Trip Info (Show/Hide)
  • Trailer Tow (Show/Hide)
  • Audio (Show/Hide)
  • Messages
  • Screen Setup
  • Vehicle Settings – If Equipped
  • Commercial Settings — If Equipped

NOTE:

Menus with (Show/Hide) can push the right ▷ arrow button to choose whether to show or hide this menu in the instrument cluster display.

Upper Left — If Equipped

  • None
  • Compass — If Equipped
  • Outside Temp — If Equipped
  • Time

- Range To Empty

- Average Econ

- Current Econ

- Trip A Distance

- Trip B Distance

- Trailer Trip — If Equipped

- Trailer Brake — If Equipped

- Oil Pressure — If Equipped

- Coolant Temperature — If Equipped

- Oil Temperature — If Equipped

● Battery Voltage — If Equipped

● Transmission Temperature — If Equipped

96 GETTING TO KNOW YOUR INSTRUMENT PANEL

Center

  • Oil Life — If Equipped
  • Exhaust Brake — If Equipped
  • Turbo Boost — If Equipped
  • Fuel Filter Life — If Equipped
  • None
  • Compass
  • Outside Temp
    • Time
  • Range To Empty
  • Average Econ
  • Current Econ
  • Trip A Distance
  • Trip B Distance
  • Trailer Trip — If Equipped
  • Audio
  • Speedometer
  • Menu Title

Upper Right

  • None
  • Compass – If Equipped
  • Outside Temp
    • Time
  • Range To Empty
  • Average Econ
  • Current Econ
  • Trip A Distance
  • Trip B Distance
  • Trailer Trip — If Equipped
  • Trailer Brake — If Equipped
  • Oil Pressure — If Equipped
    • Coolant Temperature — If Equipped
  • Oil Temperature — If Equipped
  • Battery Voltage – If Equipped

  • Transmission Temperature — If Equipped

  • Oil Life — If Equipped
  • Exhaust Brake — If Equipped
  • Turbo Boost — If Equipped
  • Fuel Filter Life — If Equipped

Left Side — If Equipped

  • None
  • Range
  • Average Econ
  • Menu Icon
  • Coolant Temperature
  • Oil Temperature
    • Transmission Temperature
  • Oil Life
  • Fuel Filter Life — If Equipped

Right Side — If Equipped

  • None
  • Range
  • Average Econ
  • Menu Icon
  • Coolant Temperature
  • Oil Temperature
    ● Transmission Temperature
  • Oil Life
  • Fuel Filter Life — If Equipped

Lower Left — If Equipped

  • None
  • Compass
  • Outside Temp
    • Time
  • Range To Empty
  • Average Econ
  • Current Econ
  • Trip A Distance

  • Trip B Distance

  • Trailer Trip
  • Trailer Brake
  • Oil Pressure
  • Coolant Temperature
  • Oil Temperature
  • Battery Voltage
    ● Transmission Temperature
  • Oil Life
  • Exhaust Brake — If Equipped
  • Turbo Boost – If Equipped
  • Fuel Filter Life — If Equipped

Lower Right — If Equipped

  • None
  • Compass
  • Outside Temp
  • Time
  • Range To Empty

  • Average Econ

  • Current Econ
  • Trip A Distance
  • Trip B Distance
  • Trailer Trip
  • Trailer Brake
  • Oil Pressure
  • Coolant Temperature
  • Oil Temperature
  • Battery Voltage
    ● Transmission Temperature
  • Oil Life
  • Exhaust Brake — If Equipped
  • Turbo Boost — If Equipped
  • Fuel Filter Life — If Equipped

Restore Defaults

  • Cancel
  • Restore

98 GETTING TO KNOW YOUR INSTRUMENT PANEL

Settings — If Equipped

Personal Settings allows the driver to set and recall features when the transmission is in PARK.

Push and release the up or down arrow button until Settings displays in the instrument cluster display.

Follow the prompts to display and set any of the following Vehicle Settings.

NOTE:

Your vehicle may be equipped with the following settings.

  • If equipped with a base radio (Non-Touchscreen) Vehicle Settings will be included in the instrument cluster display.
  • If equipped with a Touchscreen radio, the Vehicle Settings will be included in the radio head unit.
Setting NamesSetting Names Abbreviated(Left Submenu Layer)Submenus (Right Submenu Layer)
Language Select Language Englishh, Spanish, French, Arabic
Units Units U.S.; Metric
ParkSense ParkSenseFront Volume – Low; Medium; HighRear Volume – Low; Medium; High
Tilt Mirror in Reverse Tilt Mirror inR On; Off
Rain Sensing Wipers Auto WipersOn; Off
Hill Start AssistHill Start AssistOn; Off
Headlights Off DelayLights Off Delay0 seconds; 30 seconds; 60 seconds; 90 seconds
Illuminated ApproachLights w/ Unlock0 seconds; 30 seconds; 60 seconds; 90 seconds
Headlights On with WipersLights w/ WipersOn; Off
Automatic High beamsAuto High beamsOn; Off
Daytime Running Lights DaytimeLights On; Off
Flash Lights with Lock Lights w/ LockOn; Off
Auto Lock Doors Auto Lock DoorsOn; Off
Auto Unlock Doors Auto Unlock DoorsOn; Off
Sound Horn with Remote Start Horn w/ Rmt Start On; Off
Sound Horn with Remote Lock Horn w/ Rmt Lock Off; 1st Press; 2nd Press
Remote Unlock Sequence RemoteUnlock Driver Door; All Doors
Key Fob Linked to MemoryKey in MemoryOn; Off
Passive EntryPassive EntryOn; Off
Remote Start Comfort SystemRmt Start ComfortOff; Remote Start; All starts
Easy Exit SeatEasy Exit SeatOn; Off
Key-off Power DelayPower Off DelayOff; 45 seconds; 5 minutes; 10 minutes
Commercial SettingsCommercialAux SwitchesPower Take-OffPIN SetupNOTE:If the vehicle's PIN is forgotten or not known, see an authorized dealer to have the PIN reset.
Trailer SelectTrailer SelectTrailer 1; Trailer 2; Trailer 3; Trailer 4

100 GETTING TO KNOW YOUR INSTRUMENT PANEL

Setting NamesSetting Names Abbreviated(Left Submenu Layer)Submenus (Right Submenu Layer)
Brake Type Brake Type Light Electric; Heavy Electric; Light EOH; Heavy EOH
Trailer Name Trailer NameTrailer # (# is equal to slot position)BoatCarCargoDumpEquipmentFlatbedGooseneckHorseLivestockMotorcycleSnowmobileTravelUtility5th Wheel
Compass Variance Compass Var 1-15 increments of 1
Calibrate Compass Compass CalCancel; Calibrate
Fuel Saver Display Fuel Saver OnOff

Commercial Settings — If Equipped

Commercial Settings allows the driver to set and recall additional features when the transmission is in PARK.

Push and release the up or down arrow button until Commercial Settings displays in the instrument cluster display.

Follow the prompts to enter the required PIN and enter the Commercial Settings submenu.

NOTE:

If your vehicle is equipped with a touchscreen radio, "Commercial Settings" will replace "Vehicle Settings" in the instrument cluster display. The Commercial Settings menu will only include the settings below ➤ page 228.

Commercial Settings allows you to access the following features (if equipped):

● Power Take Off (PTO)
- Remote Ignition
- Idle Control
- Backup Alarm
- ParkSense
- Aux Switches
- PIN Setup

NOTE:

If the vehicle's PIN is forgotten or not known, see an authorized dealer to have the PIN reset.

DIESEL MESSAGES AND WARNINGS

Diesel Particulate Filter (DPF) Messages

The Cummins diesel engine meets all diesel emissions standards, resulting in one of the lowest emitting diesel engines ever produced. To achieve these emissions standards, your vehicle is equipped with a state-of-the-art engine and exhaust system. These systems are seamlessly integrated into your vehicle and managed by the Powertrain Control Module (PCM). The PCM manages engine combustion to allow the exhaust system's catalyst to trap and burn Particulate Matter (PM) pollutants, with no input or interaction on your part.

WARNING!

A hot exhaust system can start a fire if you park over materials that can burn. Such materials might be grass or leaves coming into contact with your exhaust system. Do not park or operate your vehicle in areas where your exhaust system can contact anything that can burn.

Your vehicle has the ability to alert you to additional maintenance required on your vehicle or engine. The following messages may display in your instrument cluster display:

- Perform Service – Your vehicle will require emissions maintenance at a set interval. To help remind you when this maintenance is due, the instrument cluster display will display "Perform Service". When the "Perform Service" message is displayed in the instrument cluster display it is necessary to have the emissions maintenance performed. Emissions maintenance may include replacing the Closed Crankcase Ventilation (CCV) filter element. The procedure for clearing and resetting the "Perform Service" indicator message is located in the appropriate Service Information.

- Exhaust System — Regeneration Required Now — "Exhaust Filter XX% Full Safely Drive at Highway Speeds to Remedy" will be displayed in the instrument cluster display if the exhaust particulate filter reaches 80% of its maximum storage capacity. Under conditions of exclusive short duration and low speed driving cycles, your Cummins diesel engine and exhaust after-treatment system may never reach the conditions required to remove the trapped PM. If this occurs, the "Exhaust Filter XX% Full Safely Drive at Highway Speeds to Remedy" message will be displayed in the instrument cluster display. If this message is displayed, you will hear one chime to assist in alerting you of this condition

By simply driving your vehicle at highway speeds for as little as 45 minutes, you can remedy the condition in the particulate filter system and allow your Cummins diesel engine and exhaust after-treatment system to remove the trapped PM and restore the system to normal operating condition.

- Exhaust System – Regeneration In Process Exhaust Filter XX% Full – Indicates that the DPF is self-cleaning. Maintain your current driving condition until regeneration is completed.

- Exhaust System — Regeneration Completed — This message indicates that the DPF self-cleaning is completed. If this message is displayed, you will hear one chime to assist in alerting you of this condition.

- Exhaust Service Required – See Dealer Now – This message indicates regeneration has been disabled due to a system malfunction. At this point the engine Powertrain Control Module (PCM) will register a fault code, the instrument panel will display a MIL light.

CAUTION!

See an authorized dealer, as damage to the exhaust system could occur soon with continued operation.

- Exhaust Filter Full — Power Reduced See Dealer — This message indicates the PCM has derated the engine to limit the likelihood of permanent damage to the after-treatment system. If this condition is not corrected and a dealer service is not performed, extensive exhaust after-treatment damage can occur. To correct this condition it will be necessary to have your vehicle serviced by an authorized dealer.

NOTE:

Failing to follow the oil change indicator, changing your oil and resetting the oil change indicator by 0 miles remaining will prevent the diesel exhaust filter from performing it's cleaning routine. This will shortly result in a Malfunction Indicator Light (MIL) and reduced engine power. Only an authorized dealer will be able to correct this condition.

CAUTION!

See an authorized dealer, as damage to the exhaust system could occur soon with continued operation.

GETTING TO KNOW YOUR INSTRUMENT PANEL 103

Cold Ambient Derate Mode Messages

The vehicle will display messages when a derate (engine power reduction) is activated to protect the engine during start up in cold ambient temperatures.

  • Engine Power Reduced During Warm up — This message will display during start up when the ambient temperature is between 10^ F ( -12^ C) and -10^ F ( -23^ C).
  • Engine Power Reduced Up To 30 Sec (Seconds) During Warm up — This message will display during start up when the ambient temperature is between -10°F (-23°C) and -25°F (-32°C).
  • Engine Power Reduced Up To 2 Min (Minutes) During Warm up – This message will display during start up when the ambient temperature is -25°F (-32°C) and below.

Your vehicle is equipped with an engine warm up protection feature that may limit engine performance after cold starting at low ambient temperatures. The length of time engine speed is limited is dependent upon engine coolant temperature. Engine speed may be briefly limited to 1,000 RPM after starting with coolant temperature below

freezing conditions, and may be limited to 1,000 RPM for up to approximately two minutes under more severe cold conditions.

- Coolant Low – This telltale will turn on to indicate the vehicle coolant level is low. Refer to "Dealer Service" in "Servicing And Maintenance" for more information.

Diesel Exhaust Fluid (DEF) Warning Messages

There are four different messages which are displayed if the vehicle detects that the DEF system has been filled with a fluid other than DEF, has experienced component failures, or when tampering has been detected. The vehicle may be limited to a maximum speed of 5 mph (8 km/h) if the DEF system is not serviced within less than 200 miles (322 km) of the fault being detected.

When the DEF system needs to be serviced the following warnings will display:

- DEF Low Refill Soon — This message will display when the low level is reached, during vehicle start up, and with increased frequency during vehicle operation. It will be accompanied by a single chime. Approximately 5 gallons (19 Liters) of DEF is required to

104 GETTING TO KNOW YOUR INSTRUMENT PANEL

refill the tank when this message is initially displayed on pickup applications, and approximately 7 gallons (26 Liters) are required on chassis-cab applications.

  • Speed Limited to 5 MPH in XXX mi Refill DEF — This message will continuously display if the "DEF Low Refill Soon" message is ignored, and the frequency of occurrence of the chime will increase unless up to 2 gallons (7.5 Liters) of DEF is added to the tank.
  • 5 MPH Max Speed on Restart, Long Idle or Refuel Refill DEF — This message will continuously display when the counter reaches zero, and will be accompanied by a periodic chime.

The vehicle will only be capable of a maximum speed of 5 mph upon the first of the following conditions to occur:

  • If the vehicle is shutoff and restarted.
  • If the vehicle is idled for an extended period of time, approximately one hour or greater.
  • If the system detects that the level of fuel in the tank has increased.

Add a minimum of 2 gallons (7.5 Liters) of DEF to the tank in order to avoid vehicle operation at a maximum speed of 5 mph (8 km/h).

NOTE:

A minimum of 2 gallons (7.5 Liters) may be required to restore normal vehicle operation. Although the vehicle will start normally and can be placed in gear after this message has been initially displayed, extreme caution should be utilized since the vehicle will only be capable of maneuvering at a maximum speed of 5 mph (8 km/h).

Diesel Exhaust Fluid (DEF) Fault Warning Messages

There are five different messages which are displayed if the vehicle detects that the DEF system has been filled with a fluid other than DEF, has experienced component failures, or when tampering has been detected. The vehicle may be limited to a maximum speed of 5 mph (8 km/h) if the DEF system is not serviced within less than 200 miles (322 km) of the fault being detected.

When the DEF system needs to be serviced the following warnings will display:

- Service DEF System See Dealer – This message will display when the fault is initially detected, each time the vehicle is started, and periodically during driving. The message

will be accompanied by a single chime. We recommend you drive to the nearest authorized dealer and have your vehicle serviced as soon as possible.

- 5 MPH Max Speed in 150 mi Service DEF System See Dealer — This message will display if the DEF system has not been serviced after the "Service DEF System - See Dealer" message is displayed. This message will continuously display until the mileage counter reaches zero, and will be accompanied by a periodic chime. The message will continue to countdown until it reaches zero unless the vehicle is serviced. We recommend you drive to your nearest authorized dealer and have your vehicle serviced immediately.

NOTE:

Under some circumstances this mileage counter may start with a value of less than 150 miles (241 km). For example, if recurring faults are detected in a time interval of less than 40 hours, the counter may restart at the value where it stopped when a previous fault was temporarily remedied, or at a minimum of 50 miles (80 km).

- 5 MPH Max Speed on Restart, Long Idle or Refuel Service DEF See Dealer – This message will continuously display when the mileage counter reaches zero, and will be accompanied by a periodic chime.

The vehicle will only be capable of a maximum speed of 5 mph upon the first of the following conditions to occur:

  • If the vehicle is shutoff and restarted.
  • If the vehicle is idled for an extended period of time, approximately one hour or greater.
  • If the system detects that the level of fuel in the tank has increased.

- 5 MPH Max Speed Service DEF System See Dealer — This message will continuously display, and will be accompanied by a periodic chime. Although the vehicle can be started and placed in gear, the vehicle will only operate at a maximum speed of 5 mph. Your vehicle will require towing, see an authorized dealer for service.

NOTE:

When this message is displayed, the engine can still be started. However, the vehicle will only operate at a maximum speed of 5 mph.

- Incorrect DEF Detected See Dealer — This message will display when the fault is initially detected, each time the vehicle is started, and periodically during driving. The message will be accompanied by a single chime. We recommend you drive to the nearest authorized dealer and have your vehicle serviced as soon as possible.

RAM Active Air System

Your vehicle is equipped with an advanced Ram Active Air system that provides enhanced performance, especially when towing under demanding hot or high altitude conditions. If the instrument cluster display displays the message "Active Airbox Service Required See Dealer", vehicle performance may be reduced until service is performed by an authorized RAM dealer.

BATTERY SAVER ON/BATTERY SAVER MODE MESSAGE — ELECTRICAL LOAD REDUCTION ACTIONS — IF EQUIPPED

This vehicle is equipped with an Intelligent Battery Sensor (IBS) to perform additional monitoring of the electrical system and status of the vehicle battery.

In cases when the IBS detects charging system failure, or the vehicle battery conditions are deteriorating, electrical load reduction actions will take place to extend the driving time and distance of the vehicle. This is done by reducing power to or turning off non-essential electrical loads.

Load reduction is only active when the engine is running. It will display a message if there is a risk of battery depletion to the point where the vehicle may stall due to lack of electrical supply, or will not restart after the current drive cycle.

When load reduction is activated, the message "Battery Saver On Some Systems May Have Reduced Power" will appear in the instrument cluster.

These messages indicate the vehicle battery has a low state of charge and continues to lose electrical charge at a rate that the charging system cannot sustain.

106 GETTING TO KNOW YOUR INSTRUMENT PANEL

NOTE:

  • The charging system is independent from load reduction. The charging system performs a diagnostic on the charging system continuously.
  • If the Battery Charge Warning Light is on it may indicate a problem with the charging system ➤ page 108.

The electrical loads that may be switched off (if equipped), and vehicle functions which can be affected by load reduction:

● Heated Seats/Vented Seats/Heated Wheel
• Rear Defroster And Heated Mirrors
HVAC System
• 115 Volt AC Power Inverter System
• Audio and Telematics System

Loss of the battery charge may indicate one or more of the following conditions:

- The charging system cannot deliver enough electrical power to the vehicle system because the electrical loads are larger than the capability of charging system. The charging system is still functioning properly.

  • Turning on all possible vehicle electrical loads (e.g. HVAC to max settings, exterior and interior lights, overloaded power outlets +12 Volts, 115 Volt AC, USB ports) during certain driving conditions (city driving, towing, frequent stopping).
  • Installing options like additional lights, upfitter electrical accessories, audio systems, alarms and similar devices.
  • Unusual driving cycles (short trips separated by long parking periods).
  • The vehicle was parked for an extended period of time (weeks, months).
  • The battery was recently replaced and was not charged completely.
  • The battery was discharged by an electrical load left on when the vehicle was parked.
  • The battery was used for an extended period with the engine not running to supply radio, lights, chargers, +12 Volt portable appliances like vacuum cleaners, game consoles and similar devices.

What to do when an electrical load reduction action message is present ("Battery Saver On" or "Battery Saver Mode")

During a trip:

- Reduce power to unnecessary loads if possible:

- Turn off redundant lights (interior or exterior).

- Check what may be plugged in to power outlets +12 Volts, 115 Volt AC, USB ports.

- Check HVAC settings (blower, temperature).

- Check the audio settings (volume).

After a trip:

  • Check if any aftermarket equipment was installed (additional lights, upfitter electrical accessories, audio systems, alarms) and review specifications if any (load and Ignition Off Draw currents).
  • Evaluate the latest driving cycles (distance, driving time and parking time).
  • The vehicle should have service performed if the message is still present during consecutive trips and the evaluation of the vehicle and driving pattern did not help to identify the cause.

WARNING LIGHTS AND MESSAGES

The warning/indicator lights will illuminate in the instrument panel together with a dedicated message and/or acoustic signal when applicable. These indications are indicative and precautionary and as such must not be considered as exhaustive. Always refer to the information in this chapter in the event of a failure indication. All active telltales will display first if applicable. The system check menu may appear different based upon equipment options and current vehicle status. Some telltales are optional and may not appear.

RED WARNING LIGHTS

Seat Belt Reminder Warning Light

RAM 4500 Chassis Cab (2021) - Seat Belt Reminder Warning Light - 1

This warning light indicates when the driver or passenger seat belt is unbuckled. When the ignition is first placed in the ON/RUN or ACC/ON/RUN position and if the driver's seat belt is unbuckled, a chime will sound and the light will turn on.

When driving, if the driver or front passenger seat belt remains unbuckled, the Seat Belt Reminder Light will flash or remain on continuously and a chime will sound ↩ page 292.

Air Bag Warning Light

RAM 4500 Chassis Cab (2021) - Air Bag Warning Light - 1

This warning light will illuminate to indicate a fault with the air bag, and will turn on for four to eight seconds as a bulb check when the ignition

is placed in the ON/RUN or ACC/ON/RUN position. This light will illuminate with a single chime when a fault with the air bag has been detected, it will stay on until the fault is cleared. If the light is not on during startup, stays on, or turns on while driving, have the system inspected at an authorized dealer as soon as possible.

Brake Warning Light

RAM 4500 Chassis Cab (2021) - Brake Warning Light - 1

This warning light monitors various brake functions, including brake fluid level and parking brake application. If the brake light turns on it may indicate that the parking brake is applied, that the brake fluid level is low, or that there is a problem with the Anti-Lock Brake System reservoir.

If the light remains on when the parking brake has been disengaged, and the fluid level is at the full mark on the master cylinder reservoir, it indicates a possible brake hydraulic system malfunction or that a problem with the Brake

Booster has been detected by the Anti-Lock Brake System (ABS) / Electronic Stability Control (ESC) system. In this case, the light will remain on until the condition has been corrected. If the problem is related to the brake booster, the ABS pump will run when applying the brake, and a brake pedal pulsation may be felt during each stop.

The dual brake system provides a reserve braking capacity in the event of a failure to a portion of the hydraulic system. A leak in either half of the dual brake system is indicated by the Brake Warning Light, which will turn on when the brake fluid level in the master cylinder has dropped below a specified level.

The light will remain on until the cause is corrected.

NOTE:

The light may flash momentarily during sharp cornering maneuvers, which change fluid level conditions. The vehicle should have service performed, and the brake fluid level checked.

If brake failure is indicated, immediate repair is necessary.

WARNING!

Driving a vehicle with the red brake light on is dangerous. Part of the brake system may have failed. It will take longer to stop the vehicle. You could have a collision. Have the vehicle checked immediately.

Vehicles equipped with the Anti-Lock Brake System (ABS) are also equipped with Electronic Brake Force Distribution (EBD). In the event of an EBD failure, the Brake Warning Light will turn on along with the ABS Light. Immediate repair to the ABS system is required.

Operation of the Brake Warning Light can be checked by turning the ignition switch from the OFF position to the ON/RUN position. The light should illuminate for approximately two seconds. The light should then turn off unless the parking brake is applied or a brake fault is detected. If the light does not illuminate, have the light inspected by an authorized dealer.

The light also will turn on when the parking brake is applied with the ignition switch in the ON/RUN position.

NOTE:

This light shows only that the parking brake is applied. It does not show the degree of brake application.

Hood Open Warning Light

RAM 4500 Chassis Cab (2021) - Hood Open Warning Light - 1

This warning light will illuminate when the hood is ajar/open and not fully closed.

NOTE:

If the vehicle is moving, there will also be a single chime.

Vehicle Security Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Vehicle Security Warning Light — If Equipped - 1

This light will flash at a fast rate for approximately 15 seconds when the vehicle security alarm is arming, and then will flash slowly until the vehicle

is disarmed.

Engine Coolant Temperature Warning Light

RAM 4500 Chassis Cab (2021) - Engine Coolant Temperature Warning Light - 1

This warning light warns of an overheated engine condition. If the engine coolant temperature is too high, this indicator will illuminate and

a single chime will sound. If the temperature

reaches the upper limit, a continuous chime will sound for four minutes or until the engine is able to cool, whichever comes first.

If the light turns on while driving, safely pull over and stop the vehicle. If the Air Conditioning (A/C) system is on, turn it off. Also, shift the transmission into NEUTRAL and idle the vehicle. If the temperature reading does not return to normal, turn the engine off immediately and call for service page 346.

Battery Charge Warning Light

RAM 4500 Chassis Cab (2021) - Battery Charge Warning Light - 1

This warning light will illuminate when the battery is not charging properly. If it stays on while the engine is running, there may be a malfunction

with the charging system. Contact an authorized dealer as soon as possible.

This indicates a possible problem with the electrical system or a related component.

Oil Pressure Warning Light

RAM 4500 Chassis Cab (2021) - Oil Pressure Warning Light - 1

This warning light will illuminate to indicate low engine oil pressure. If the light turns on while driving, stop the vehicle, shut off the engine as soon as

possible, and contact an authorized dealer. A chime will sound when this light turns on.

Do not operate the vehicle until the cause is corrected. This light does not indicate how much oil is in the engine. The engine oil level must be checked under the hood.

Oil Temperature Warning Light

RAM 4500 Chassis Cab (2021) - Oil Temperature Warning Light - 1

This warning light will illuminate to indicate the engine oil temperature is high. If the light turns on while driving, stop the vehicle and shut off the

engine as soon as possible. Wait for oil temperature to return to normal levels.

Electronic Throttle Control (ETC) Warning Light

RAM 4500 Chassis Cab (2021) - Electronic Throttle Control (ETC) Warning Light - 1

This warning light will illuminate to indicate a problem with the ETC system. If a problem is detected while the vehicle is running, the light will

either stay on or flash depending on the nature of the problem. Cycle the ignition when the vehicle is safely and completely stopped and the transmission is placed in the PARK position. The light should turn off. If the light remains on with the vehicle running, your vehicle will usually be drivable; however, see an authorized dealer for service as soon as possible.

NOTE:

This light may turn on if the accelerator and brake pedals are pressed at the same time.

If the light continues to flash when the vehicle is running, immediate service is required and you may experience reduced performance, an elevated/rough idle, or engine stall and your vehicle may require towing. The light will come on when the ignition is placed in the ON/RUN or ACC/ON/RUN position and remain on briefly as a bulb check. If the light does not come on during starting, have the system checked by an authorized dealer.

Electric Power Steering (EPS) Fault Warning Light

RAM 4500 Chassis Cab (2021) - Electric Power Steering (EPS) Fault Warning Light - 1

This warning light will turn on when there's a fault with the EPS system page 163.

WARNING!

Continued operation with reduced assist could pose a safety risk to yourself and others. Service should be obtained as soon as possible.

Trailer Brake Disconnected Warning Light

RAM 4500 Chassis Cab (2021) - Trailer Brake Disconnected Warning Light - 1

This warning light will illuminate when the Trailer Brake has been disconnected ➤ page 200.

Transmission Temperature Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Transmission Temperature Warning Light — If Equipped - 1

This warning light will illuminate to warn of a high transmission fluid temperature. This may occur with strenuous usage such as trailer

towing. If this light turns on, stop the vehicle and run the engine at idle or slightly faster, with the transmission in PARK or NEUTRAL, until the light turns off. Once the light turns off, you may continue to drive normally.

WARNING!

If you continue operating the vehicle when the Transmission Temperature Warning Light is illuminated you could cause the fluid to boil over, come in contact with hot engine or exhaust components and cause a fire.

CAUTION!

Continuous driving with the Transmission Temperature Warning Light illuminated will eventually cause severe transmission damage or transmission failure.

Door Open Warning Light

RAM 4500 Chassis Cab (2021) - Door Open Warning Light - 1

This indicator will illuminate when a door is ajar/open and not fully closed.

NOTE:

If the vehicle is moving there will also be a single chime.

YELLOW WARNING LIGHTS

Adaptive Cruise Control (ACC) Fault Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Adaptive Cruise Control (ACC) Fault Warning Light — If Equipped - 1

This warning light will illuminate to indicate a fault in the ACC system. Contact a local authorized dealer for service ▶ page 166.

Engine Check/Malfunction Indicator Warning Light (MIL)

RAM 4500 Chassis Cab (2021) - Engine Check/Malfunction Indicator Warning Light (MIL) - 1

The Engine Check/Malfunction Indicator Light (MIL) is a part of an Onboard Diagnostic System called OBD II that monitors engine and

automatic transmission control systems. This warning light will illuminate when the ignition is in the ON/RUN position before engine start. If the bulb does not come on when turning the ignition switch from OFF to ON/RUN, have the condition checked promptly.

Certain conditions, such as a loose or missing gas cap, poor quality fuel, etc., may illuminate the light after engine start. The vehicle should be serviced if the light stays on through several typical driving styles. In most situations, the vehicle will drive normally and will not require towing.

When the engine is running, the MIL may flash to alert serious conditions that could lead to immediate loss of power or severe catalytic converter damage. The vehicle should be serviced by an authorized dealer as soon as possible if this occurs.

WARNING!

A malfunctioning catalytic converter, as referenced above, can reach higher temperatures than in normal operating conditions. This can cause a fire if you drive slowly or park over flammable substances such as dry plants, wood, cardboard, etc. This could result in death or serious injury to the driver, occupants or others.

CAUTION!

Prolonged driving with the Malfunction Indicator Light (MIL) on could cause damage to the vehicle control system. It also could affect fuel economy and driveability. If the MIL is flashing, severe catalytic converter damage and power loss will soon occur. Immediate service is required.

Electronic Stability Control (ESC) Active Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Electronic Stability Control (ESC) Active Warning Light — If Equipped - 1

This warning light will indicate when the ESC system is Active. The ESC Indicator Light in the instrument cluster will come on when the ignition is placed in the ON/RUN or ACC/ON/RUN position, and when ESC is activated. It should go out with the engine running. If the ESC Indicator Light comes on continuously with the engine running, a malfunction has been detected in the ESC system. If this warning light remains on after several ignition cycles, and the vehicle has been driven several miles (kilometers) at speeds greater than 30 mph (48 km/h), see an authorized dealer as soon as possible to have the problem diagnosed and corrected.

  • The ESC OFF Indicator Light and the ESC Indicator Light come on momentarily each time the ignition is placed in the ON/RUN or ACC/ON/RUN position.
  • The ESC system will make buzzing or clicking sounds when it is active. This is normal; the sounds will stop when ESC becomes inactive.
  • This light will come on when the vehicle is in an ESC event.

Electronic Stability Control (ESC) OFF Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Electronic Stability Control (ESC) OFF Warning Light — If Equipped - 1

This warning light indicates the ESC is off.

Each time the ignition is turned to ON/RUN or ACC/ON/RUN, the ESC system will be on, even if it was turned off previously.

Low Washer Fluid Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Low Washer Fluid Warning Light — If Equipped - 1

This warning light will illuminate when the windshield washer fluid is low page 364.

Low Fuel Warning Light

RAM 4500 Chassis Cab (2021) - Low Fuel Warning Light - 1

When the fuel level reaches approximately 3.2 gal (12 L) this light will turn on, and remain on until fuel is added.

A single warning chime will sound with Low Fuel Warning.

Low Coolant Level Warning Light

RAM 4500 Chassis Cab (2021) - Low Coolant Level Warning Light - 1

This telltale will turn on to indicate the vehicle coolant level is low page 367.

Loose Fuel Filler Cap Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Loose Fuel Filler Cap Warning Light — If Equipped - 1

This warning light will illuminate when the fuel filler cap is loose. Properly close the filler cap to disengage the light. If the light does not turn off,

please see an authorized dealer.

Tire Pressure Monitoring System (TPMS) Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Tire Pressure Monitoring System (TPMS) Warning Light — If Equipped - 1

The warning light switches on and a message is displayed to indicate that the tire pressure is lower than the recommended value and/or that slow pressure loss is occurring. In these cases, optimal tire duration and fuel consumption may not be guaranteed.

Should one or more tires be in the condition mentioned above, the display will show the indications corresponding to each tire.

CAUTION!

Do not continue driving with one or more flat tires as handling may be compromised. Stop the vehicle, avoiding sharp braking and steering. If a tire puncture occurs, repair immediately using the dedicated tire repair kit and contact an authorized dealer as soon as possible.

Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.

As an added safety feature, your vehicle has been equipped with a TPMS that illuminates a low tire pressure telltale when one or more of your tires is significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Under inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability.

Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if under inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale.

Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly.

CAUTION!

The TPMS has been optimized for the original equipment tires and wheels. TPMS pressures and warning have been established for the tire size equipped on your vehicle. Undesirable system operation or sensor damage may result when using replacement equipment that is not of the same size, type, and/or style. Aftermarket wheels can cause sensor damage. Using aftermarket tire sealants may cause the Tire Pressure Monitoring System (TPMS) sensor to become inoperable. After using an aftermarket tire sealant it is recommended that you take your vehicle to an authorized dealer to have your sensor function checked.

Anti-Lock Brake System (ABS) Warning Light

RAM 4500 Chassis Cab (2021) - Anti-Lock Brake System (ABS) Warning Light - 1

This warning light monitors the ABS. The light will turn on when the ignition is placed in the ON/RUN or ACC/ON/RUN position and may stay on for as long as

four seconds.

If the ABS light remains on or turns on while driving, then the Anti-Lock portion of the brake system is not functioning and service is required as soon as possible. However, the conventional brake system will continue to operate normally, assuming the Brake Warning Light is not also on.

If the ABS light does not turn on when the ignition is placed in the ON/RUN or ACC/ON/RUN position, have the brake system inspected by an authorized dealer.

Service Forward Collision Warning (FCW) Light — If Equipped

RAM 4500 Chassis Cab (2021) - Service Forward Collision Warning (FCW) Light — If Equipped - 1

This warning light will illuminate to indicate a fault in the Forward Collision Warning System. Contact an authorized dealer for service ➔ page 281.

Service 4WD Warning Light — If Equipped

RAM 4500 Chassis Cab (2021) - Service 4WD Warning Light — If Equipped - 1

This warning light will illuminate to signal a fault with the 4WD system. If the light stays on or comes on during driving, it means that the 4WD

system is not functioning properly and that service is required. We recommend you drive to the nearest service center and have the vehicle serviced immediately.

Cruise Control Fault Warning Light

RAM 4500 Chassis Cab (2021) - Cruise Control Fault Warning Light - 1

This warning light will illuminate to indicate the Cruise Control System is not functioning properly and service is required. Contact an authorized dealer.

YELLOW INDICATOR LIGHTS

Forward Collision Warning (FCW) Off Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - Forward Collision Warning (FCW) Off Indicator Light — If Equipped - 1

This indicator light illuminates to indicate that Forward Collision Warning is off ↩ page 281.

TOW/HAUL Indicator Light

RAM 4500 Chassis Cab (2021) - TOW/HAUL Indicator Light - 1

This indicator light will illuminate when TOW/HAUL mode is selected.

Trailer Merge Assist Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - Trailer Merge Assist Indicator Light — If Equipped - 1

This indicator light will illuminate to indicate when Trailer Merge Assist has been activated.

Cargo Light — If Equipped

RAM 4500 Chassis Cab (2021) - Cargo Light — If Equipped - 1

This indicator light will illuminate when the cargo light is activated by pushing the cargo light button on the headlight switch.

Snowplow Mode Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - Snowplow Mode Indicator Light — If Equipped - 1

This indicator light will illuminate when Snowplow Mode has been activated ➤ page 212.

114 GETTING TO KNOW YOUR INSTRUMENT PANEL

Cold Ambient Derate Mode Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - Cold Ambient Derate Mode Indicator Light — If Equipped - 1

This indicator light will illuminate when a derate (engine power reduction) is activated for protection of the turbocharger in cold ambient

temperatures.

Diesel Exhaust Brake Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - Diesel Exhaust Brake Indicator Light — If Equipped - 1

This indicator light will illuminate when the Diesel Exhaust Brake has been activated, and is in full strength mode ↘ page 138.

4WD Lock Indicator Light

RAM 4500 Chassis Cab (2021) - 4WD Lock Indicator Light - 1

This light alerts the driver that the vehicle is in the 4WD LOCK mode. The front and rear driveshafts are mechanically locked together, forcing

the front and rear wheels to rotate at the same speed ➤ page 153.

4WD Low Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - 4WD Low Indicator Light — If Equipped - 1

This light alerts the driver that the vehicle is in the 4WD Low mode. The front and rear driveshafts are mechanically locked together forcing

the front and rear wheels to rotate at the same speed. Low range provides a greater gear reduction ratio to provide increased torque at the wheels ↩ page 153.

4WD High Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - 4WD High Indicator Light — If Equipped - 1

This light alerts the driver that the vehicle is in the 4WD High mode. The front and rear driveshafts are mechanically locked together forcing

the front and rear wheels to rotate at the same speed.

NEUTRAL Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - NEUTRAL Indicator Light — If Equipped - 1

This light alerts the driver that the 4WD power transfer case is in the NEUTRAL mode and the front and rear driveshafts are disengaged from the in.

Low Diesel Exhaust Fluid (DEF) Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - Low Diesel Exhaust Fluid (DEF) Indicator Light — If Equipped - 1

The Low DEF Indicator will illuminate if the vehicle is low on DEF ↩ page 379.

Wait To Start Light — If Equipped

RAM 4500 Chassis Cab (2021) - Wait To Start Light — If Equipped - 1

This indicator light will illuminate for approximately two seconds when the ignition is turned to the RUN position. Its duration may be longer based on

colder operating conditions. Vehicle will not initiate start until telltale is no longer displayed → page 122.

NOTE:

The "Wait To Start" telltale may not illuminate if the intake manifold temperature is warm enough.

Water In Fuel Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - Water In Fuel Indicator Light — If Equipped - 1

The "Water In Fuel Indicator Light" will illuminate when there is water detected in the fuel filter. If this light remains on, DO NOT start the vehicle

before you drain the water from the fuel filter to prevent engine damage → page 375.

GREEN INDICATOR LIGHTS

Adaptive Cruise Control (ACC) Set With Target Light — If Equipped

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 1

This will display when the ACC is set and a the vehicle in front is detected page 166.

Adaptive Cruise Control (ACC) Set With No Target Detected Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 2

This light will turn on when the Adaptive Cruise Control is SET and there is no vehicle in front detected page 166.

Automatic Diesel Exhaust Brake Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 3

This indicator light will illuminate when the Diesel Exhaust Brake has been activated, and has switched to Automatic mode ↩ page 164.

ECO Mode Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 4

This light will turn on when ECO Mode is active.

Park/Headlight On Indicator Light

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 5

This indicator light will illuminate when the park lights or headlights are turned on.

Front Fog Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 6

This indicator light will illuminate when the front fog lights are on.

Turn Signal Indicator Lights

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 7

When the left or right turn signal is activated, the turn signal indicator will flash independently and the corresponding exterior turn signal

lamps will flash. Turn signals can be activated when the multifunction lever is moved down (left) or up (right).

NOTE:

  • A continuous chime will sound if the vehicle is driven more than 1 mile (1.6 km) with either turn signal on.
  • Check for an inoperative outside light bulb if either indicator flashes at a rapid rate.

- If equipped with fog lamps, the fog lamp on the side of the activated turn signal will also illuminate to provide additional light when turning.

Cruise Control Set Indicator Light — If Equipped

RAM 4500 Chassis Cab (2021) - GREEN INDICATOR LIGHTS - 8

This indicator light will illuminate when the cruise control is set to the desired speed ↩ page 164.

WHITE INDICATOR LIGHTS

Adaptive Cruise Control (ACC) Ready Light — If Equipped

RAM 4500 Chassis Cab (2021) - WHITE INDICATOR LIGHTS - 1

This light will illuminate when the vehicle equipped with ACC has been turned on but not set ➤ page 166.

Cruise Control Ready Indicator

RAM 4500 Chassis Cab (2021) - WHITE INDICATOR LIGHTS - 2

This indicator light will illuminate when the cruise control is ready, but not set ➕ page 164.

Set Speed Display

RAM 4500 Chassis Cab (2021) - WHITE INDICATOR LIGHTS - 3

The Set Speed Display indicator light indicates the set speed for the Speed Control and ACC settings.

BLUE INDICATOR LIGHTS

High Beam Indicator Light

RAM 4500 Chassis Cab (2021) - High Beam Indicator Light - 1

This indicator light will illuminate to indicate that the high beam headlights are on. With the low beams activated, push the multifunction

lever forward (toward the front of the vehicle) to turn on the high beams. Pull the multifunction lever rearward (toward the rear of the vehicle) to turn off the high beams. If the high beams are off, pull the lever toward you for a temporary high beam on, "flash to pass" scenario.

ONBOARD DIAGNOSTIC SYSTEM — OBD II

Your vehicle is equipped with a sophisticated Onboard Diagnostic system called OBD II. This system monitors the performance of the emissions, engine, and transmission control systems. When these systems are operating properly, your vehicle will provide excellent performance and fuel economy, as well as engine emissions well within current government regulations.

If any of these systems require service, the OBD II system will turn on the Malfunction Indicator Light (MIL). It will also store diagnostic codes and other information to assist your service technician in making repairs. Although your vehicle will usually be drivable and not need towing, see an authorized dealer for service as soon as possible.

CAUTION!

  • Prolonged driving with the MIL on could cause further damage to the emission control system. It could also affect fuel economy and driveability. The vehicle must be serviced before any emissions tests can be performed.
  • If the MIL is flashing while the vehicle is running, severe catalytic converter damage and power loss will soon occur. Immediate service is required.

ONBOARD DIAGNOSTIC SYSTEM (OBD II) C YBERSECURITY

Your vehicle is required to have an OBD II and a connection port to allow access to information related to the performance of your emissions controls. Authorized service technicians may need to access this information to assist with the diagnosis and service of your vehicle and emissions system ➤ page 220.

WARNING!

  • ONLY an authorized service technician should connect equipment to the OBD II connection port in order to read the VIN, diagnose, or service your vehicle.
  • If unauthorized equipment is connected to the OBD II connection port, such as a driver-behavior tracking device, it may:
  • Be possible that vehicle systems, including safety related systems, could be impaired or a loss of vehicle control could occur that may result in an accident involving serious injury or death.
  • Access, or allow others to access, information stored in your vehicle systems, including personal information.

EMISSIONS INSPECTION AND MAINTENANCE PROGRAMS

In some localities, it may be a legal requirement to pass an inspection of your vehicle's emissions control system. Failure to pass could prevent vehicle registration.

RAM 4500 Chassis Cab (2021) - EMISSIONS INSPECTION AND MAINTENANCE PROGRAMS - 1

For states that require an Inspection and Maintenance (I/M), this check verifies the Malfunction Indicator

Light (MIL) is functioning and is not on when the engine is running, and that the OBD II system is ready for testing.

Normally, the OBD II system will be ready. The OBD II system may not be ready if your vehicle was recently serviced, recently had a depleted battery or a battery replacement. If the OBD II system should be determined not ready for the I/M test, your vehicle may fail the test.

Your vehicle has a simple ignition actuated test, which you can use prior to going to the test station. To check if your vehicle's OBD II system is ready, you must do the following:

  1. Cycle the ignition switch to the ON position, but do not crank or start the engine.

NOTE:

If you crank or start the engine, you will have to start this test over.

  1. As soon as you cycle the ignition switch to the ON position, you will see the Malfunction Indicator Light (MIL) symbol come on as part of a normal bulb check.

  2. Approximately 15 seconds later, one of two things will happen:

- The MIL will flash for about 10 seconds and then return to being fully illuminated until you turn OFF the ignition or start the engine. This means that your vehicle's OBD II system is not ready and you should not proceed to the I/M station.

- The MIL will not flash at all and will remain fully illuminated until you place the ignition in the off position or start the engine. This means that your vehicle's OBD II system is ready and you can proceed to the I/M station.

If your OBD II system is not ready, you should see an authorized dealer or repair facility. If your vehicle was recently serviced or had a battery failure or replacement, you may need to do nothing more than drive your vehicle as you normally would in order for your OBD II system to update. A recheck with the above test routine may then indicate that the system is now ready.

Regardless of whether your vehicle's OBD II system is ready or not, if the MIL is illuminated during normal vehicle operation you should have your vehicle serviced before going to the I/M station. The I/M station can fail your vehicle because the MIL is on with the engine running.

STARTING AND OPERATING

STARTING THE ENGINE — GASOLINE ENGINE

Before starting your vehicle, adjust your seat, adjust both inside and outside mirrors, and fasten your seat belt.

The starter should not be operated for more than 10-second intervals. Waiting a few seconds between such intervals will protect the starter from overheating.

WARNING!

  • When leaving the vehicle, always make sure the keyless ignition node is in the OFF mode, remove the key fob from the vehicle and lock the vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the gear selector.

(Continued)

WARNING! (Continued)

  • Do not leave the key fob in or near the vehicle, or in a location accessible to children, and do not leave the ignition of a vehicle equipped with Keyless Enter-N-Go in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.
  • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.

AUTOMATIC TRANSMISSION

Start the engine with the transmission in the PARK position. Apply the brake before shifting into any driving range.

NOTE:

  • This vehicle is equipped with a transmission shift interlocking system. The brake pedal must be pressed to shift out of PARK.
  • If equipped with an eight-speed transmission, starting the vehicle in NEUTRAL is not possible unless the Manual Park Release has been activated. For the Manual Park Release operation information ↩ page 348.

TIP START FEATURE

Do not press the accelerator. Place the ignition switch briefly to the START position and release it. The starter motor will continue to run and will automatically disengage when the engine is running.

KEYLESS ENTER-N-Go — IGNITION

This feature allows the driver to operate the ignition switch with the push of a button, as long as the Remote Start/Keyless Enter-N-Go key fob is in the passenger compartment.

NORMAL STARTING USING ENGINE START/STOP BUTTON

To Turn On The Engine Using The ENGINE START/STOP Button

  1. The transmission must be in PARK.
  2. Press and hold the brake pedal while pushing the ENGINE START/STOP button once.
  3. The system takes over and attempts to start the vehicle. If the vehicle fails to start, the starter will disengage automatically after 10 seconds.
  4. If you wish to stop the cranking of the engine prior to the engine starting, push the ENGINE START/STOP button again.

NOTE:

Normal starting of either a cold or a warm engine is obtained without pumping or pressing the accelerator pedal.

To Turn Off The Engine Using ENGINE START/STOP Button

  1. Place the gear selector in PARK, then push and release the ENGINE START/STOP button.
  2. The ignition will return to the OFF mode.
  3. If the gear selector is not in PARK, the ENGINE START/STOP button must be held for two seconds or three short pushes in a row with the vehicle speed above 5 mph (8 km/h) before the engine will shut off. The ignition will remain in the ACC mode until the gear selector is in PARK and the button is pushed twice to the OFF mode.
  4. If the gear selector is not in PARK and the ENGINE START/STOP button is pushed once with the vehicle speed above 5 mph (8 km/h), the instrument cluster will display a "Vehicle Not In Park" message and the engine will remain running. Never leave a vehicle out of the PARK position, or it could roll.

NOTE:

If the gear selector is not in PARK, and the ENGINE START/STOP button is pushed once with the vehicle speed below 5 mph (8 km/h),

the engine will shut off and the ignition will remain in the ACC position. If vehicle speed drops below 1.2 mph (1.9 km/h), the vehicle may AutoPark ➤ page 120.

ENGINE START/STOP Button Functions — With Driver's Foot OFF The Brake Pedal (In PARK Or NEUTRAL Position)

The ENGINE START/STOP button operates similar to an ignition switch. It has three modes: OFF, ACC, and RUN. To change the ignition modes without starting the vehicle and use the accessories, follow these directions:

  1. Start with the ignition in the OFF mode.
  2. Push the ENGINE START/STOP button once to place the ignition to the ACC mode.
  3. Push the ENGINE START/STOP button a second time to place the ignition to the RUN mode.
  4. Push the ENGINE START/STOP button a third time to return the ignition to the OFF mode.

AUTO PARK — ROTARY SHIFTER AND EIGHT SPEED TRANSMISSION ONLY

AutoPark is a supplemental feature to assist in placing the vehicle in PARK should the situations on the following pages occur. It is a back up system and should not be relied upon as the primary method by which the driver shifts the vehicle into PARK.

The conditions under which AutoPark will engage are outlined on the following pages.

WARNING!

  • Driver inattention could lead to failure to place the vehicle in PARK. ALWAYS DO A VISUAL CHECK that your vehicle is in PARK by verifying that a solid (not blinking) "P" is indicated in the instrument cluster display and near the gear selector. If the "P" indicator is blinking, your vehicle is not in PARK. As an added precaution, always apply the parking brake when exiting the vehicle.

(Continued)

WARNING! (Continued)

  • AutoPark is a supplemental feature. It is not designed to replace the need to shift your vehicle into PARK. It is a back up system and should not be relied upon as the primary method by which the driver shifts the vehicle into PARK.

If the vehicle is not in PARK and the driver turns off the engine, the vehicle may AutoPark.

AutoPark will engage when all of these conditions are met:

  • Vehicle is equipped with a rotary shifter and an eight speed transmission
  • Vehicle is not in PARK
    ● Vehicle speed is 1.2 mph (1.9 km/h) or less
  • Ignition switched from RUN to ACC

NOTE:

For Keyless Enter-N-Go equipped vehicles, the engine will turn off and the ignition switch will change to ACC mode. After 30 minutes the ignition switches to OFF automatically, unless the driver turns the ignition switch OFF.

If the vehicle is not in PARK and the driver exits the vehicle with the engine running, the vehicle may AutoPark.

AutoPark will engage when all of these conditions are met:

  • Vehicle is equipped with a rotary shifter and an eight speed transmission
  • Vehicle is not in PARK
    ● Vehicle speed is 1.2 mph (1.9 km/h) or less
  • Driver's seat belt is unbuckled
  • Driver's door is ajar
  • Brake pedal is not pressed

The message "AutoPark Engaged Shift to P then Shift to Gear" will display in the instrument cluster.

NOTE:

In some cases the ParkSense graphic will be displayed in the instrument cluster, causing the "AutoPark Engaged Shift to P then Shift to Gear" to not be seen. In these cases, the shifter must be returned to "P" to select desired gear.

If the driver shifts into PARK while moving, the vehicle may AutoPark.

AutoPark will engage ONLY when vehicle speed is 1.2 mph (1.9 km/h) or less.

The message “Vehicle Speed is Too High to Shift to P” will be displayed in the instrument cluster if vehicle speed is above 1.2 mph (1.9 km/h).

WARNING!

If vehicle speed is above 1.2 mph (1.9 km/h), the transmission will default to NEUTRAL until the vehicle speed drops below 1.2 mph (1.9 km/h). A vehicle left in the NEUTRAL position can roll. As an added precaution, always apply the parking brake when exiting the vehicle.

4WD Low — If Equipped

AutoPark will be disabled when operating the vehicle in 4WD LOW.

The message "AutoPark Disabled" will be displayed in the instrument cluster.

Additional customer warnings will be given when all of these conditions are met:

  • Vehicle is not in PARK
  • Driver's door is ajar
  • Vehicle is in 4WD Low range

The message "AutoPark Not Engaged" will be displayed in the instrument cluster. A warning chime will continue until you shift the vehicle into PARK or the driver's door is closed.

ALWAYS DO A VISUAL CHECK that your vehicle is in PARK by looking for the "P" in the instrument cluster display and near the shifter. As an added precaution, always apply the parking brake when exiting the vehicle.

If Engine Fails To Start

If the engine fails to start after you have followed the "Normal Starting" procedure, it may be flooded. Push the accelerator pedal all the way to the floor and hold it there while the engine is cranking. This should clear any excess fuel in case the engine is flooded.

The starter motor will engage automatically, run for 10 seconds, and then disengage. Once this occurs, release the accelerator pedal and the brake pedal, wait 10 to 15 seconds, then repeat the "Normal Starting" procedure.

WARNING!

  • Never pour fuel or other flammable liquid into the throttle body air inlet opening in an attempt to start the vehicle. This could result in flash fire causing serious personal injury.
  • Do not attempt to push or tow your vehicle to get it started. Vehicles equipped with an automatic transmission cannot be started this way. Unburned fuel could enter the catalytic converter and once the engine has started, ignite and damage the converter and vehicle.
  • If the vehicle has a discharged battery, booster cables may be used to obtain a start from a booster battery or the battery in another vehicle. This type of start can be dangerous if done improperly → page 345

CAUTION!

To prevent damage to the starter, do not crank the engine for more than 10 seconds at a time. Wait 10 to 15 seconds before trying again.

If the engine has been flooded, it may start to run, but not have enough power to continue running when the ignition button/key is released. If this occurs, continue cranking with the accelerator pedal pushed all the way to the floor. Release the accelerator pedal and the ignition button/key once the engine is running smoothly.

If the engine shows no sign of starting after a 10 second period of engine cranking with the accelerator pedal held to the floor, wait 10 to 15 seconds, then repeat the “Normal Starting” procedure.

To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from an authorized dealer) is recommended.

AFTER STARTING

The idle speed is controlled automatically, and it will decrease as the engine warms up.

STARTING THE ENGINE — DIESEL ENGINE

Before starting your vehicle, adjust your seat, adjust both inside and outside mirrors, and fasten your seat belts.

The starter should not be operated for more than 25-second intervals. Waiting a few minutes between such intervals will protect the starter from overheating.

WARNING!

  • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.
  • When leaving the vehicle, always remove the key fob and lock your vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the gear selector. Do not leave the key fob in or near the vehicle (or in a location accessible to children), and do not leave the ignition of a vehicle equipped with Keyless Enter-N-Go in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.

AUTOMATIC TRANSMISSION

Start the engine with the transmission in the NEUTRAL or PARK position. Apply the brake before shifting to any driving range.

Tip Start Feature

Do not press the accelerator. Place the ignition switch briefly to the START position and release it. The starter motor will continue to run and will automatically disengage when the engine is running.

KEYLESS ENTER-N-Go — IGNITION

This feature allows the driver to operate the ignition switch with the push of a button, as long as the Remote Start/Keyless Enter-N-Go key fob is in the passenger compartment.

Normal Starting

Using The ENGINE START/STOP Button

  1. The transmission must be in PARK or NEUTRAL.
  2. Press and hold the brake pedal while pushing the ENGINE START/STOP button once.

  3. The system takes over and attempts to start the vehicle. If the vehicle fails to start, the starter will disengage automatically after 25 seconds.

  4. If you wish to stop the cranking of the engine prior to the engine starting, remove your foot from the brake pedal and push the ENGINE START/STOP button again.

NOTE:

  • Normal starting of either a cold or a warm engine is obtained without pumping or pressing the accelerator pedal.
  • Under cold weather conditions, the engine may not immediately crank if the "Wait to Start" telltale is illuminated. This is normal operation. For vehicles equipped with Keyless Enter-N-Go, the vehicle will automatically crank when the "Wait to Start" time has elapsed ➤ page 126.

To Turn Off The Engine Using ENGINE START/STOP Button

  1. Place the gear selector in PARK, then push and release the ENGINE START/STOP button.
  2. The ignition will return to the OFF mode.

  3. If the gear selector is not in PARK and the ENGINE START/STOP button is pushed once, the instrument cluster will display a "Vehicle Not In Park" message and the engine will remain running. Never leave a vehicle out of the PARK position, or it could roll.

  4. If the gear selector is in NEUTRAL, and the vehicle speed below 5 mph (8 km/h), pushing the ENGINE START/STOP button once will turn the engine off. The ignition will remain in the ACC mode.
  5. If the vehicle speed is above 5 mph (8 km/h), the ENGINE START/STOP button must be held for two seconds (or three short pushes in a row) to turn the engine off. The ignition will remain in the ACC mode (NOT the OFF mode) if the engine is turned off when the transmission is not in PARK.

NOTE:

If the ignition is left in the ACC or ON/RUN (engine not running) mode and the transmission is in PARK, the system will automatically time out after 30 minutes of inactivity and the ignition return to the OFF mode.

ENGINE START/STOP Button Functions — With Driver's Foot OFF The Brake Pedal (In PARK Or NEUTRAL Position)

The ENGINE START/STOP button operates similar to an ignition switch. It has three positions, OFF, ACC, RUN. To change the ignition switch positions without starting the vehicle and use the accessories follow these steps:

  1. Start with the ignition in the OFF position.
  2. Push the ENGINE START/STOP button once to change the ignition to the ACC position.
  3. Push the ENGINE START/STOP button a second time to change the ignition to the RUN position.
  4. Push the ENGINE START/STOP button a third time to return the ignition to the OFF position.

Keyless Enter-N-Go Starting Procedure — Engine Manifold Air Temperature 0°F To 66°F (-18°C to 19°C)

NOTE:

The temperature displayed in the instrument cluster does not necessarily reflect the engine manifold air temperature ↘ page 90. When engine temperatures fall below 66°F (19°C) the "Wait To Start" telltale will remain on indicating the intake air heater system is active.

Follow the steps in the "Normal Starting" procedure except:

  1. Pushing the engine start button with the driver's foot on the brake will move the ignition from OFF or ACC to RUN, and will illuminate the "Wait to Start" telltale. The engine will not immediately crank, this is normal operation.
  2. The "Wait to Start" telltale will remain on for a period of time that varies depending on the engine temperature.
  3. While the "Wait to Start" telltale is on, the instrument cluster will additionally display a gauge or bar whose initial length represents

the full "Wait to Start" time period. Its length will decrease until it disappears when the "Wait to Start" time has elapsed.

CAUTION!

If the "Water in Fuel Indicator Light" remains on, DO NOT START the engine before you drain the water from the fuel filters to avoid engine damage ↩ page 375.

  1. After the engine "Wait to Start" telltale goes off, the engine will automatically crank.

CAUTION!

Do not crank engine for more than 25 seconds at a time or starter motor damage may result. Turn the ignition switch to the OFF position and wait at least two minutes for the starter to cool before repeating start procedure.

  1. After engine start-up, check to see that there is oil pressure.
  2. Release the parking brake and drive.

NOTE:

  • Engine idle speed will automatically increase to 1,000 RPM and engage the Variable Geometry Turbocharger at low coolant temperatures to improve engine warm-up.
  • The engine will not automatically crank after the engine "Wait to Start" telltale goes off if a door or the hood is ajar.
  • If the engine stalls, or if the ignition switch is left ON for more than two minutes after the "Wait to Start" telltale goes out, reset the intake air heater by turning the ignition switch to the OFF position for at least 5 seconds and then back ON. Repeat steps 1 through 6 of "Keyless Enter-N-Go Starting Procedure - Engine Manifold Air Temperature 0^ To 66^ (-18^ to 19^) ."

The Cummins Turbo Diesel engine is equipped with several features designed to assist cold weather starting and operation:

- The engine block heater is a resistance heater installed in the water jacket of the engine just above and behind the oil filter.

It requires a 110–115 Volt AC electrical outlet with a grounded, three-wire extension cord.

NOTE:

The engine block heater cord is a factory installed option. If your vehicle is not equipped, heater cords are available from an authorized Mopar dealer.

  • A 12 Volt heater built into the fuel filter housings aid in preventing fuel gelling. It is controlled by a built-in thermostat.
  • An intake air heater system both improves engine starting and reduces the amount of white smoke generated by a warming engine.

NORMAL STARTING PROCEDURE — ENGINE MANIFOLD AIR TEMPERATURE ABOVE 66°F (19°C)

Observe the instrument panel cluster lights when starting the engine.

  1. Always apply the parking brake.
  2. Shift into PARK for an automatic transmission.

  3. Place the ignition switch in the ON position and watch the instrument panel cluster lights.

CAUTION!

If the "Water in Fuel Indicator Light" remains on, DO NOT START the engine before you drain the water from the fuel filters to avoid engine damage ↩ page 375.

  1. Place the ignition switch in the START position and crank the engine. Do not press the accelerator during starting.

CAUTION!

Do not crank engine for more than 25 seconds at a time or starter motor damage may result. Turn the ignition switch to the OFF position and wait at least two minutes for the starter to cool before repeating start procedure.

  1. Check that the oil pressure warning light has turned off.
  2. Release the parking brake.

STARTING PROCEDURE — ENGINE MANIFOLD AIR TEMPERATURE 0°F TO 66°F (-18°C TO 19°C)

NOTE:

The temperature displayed in the instrument cluster does not necessarily reflect the engine manifold air temperature ↩ page 90. When engine temperatures fall below 66°F (19°C) the "Wait To Start" telltale will remain on indicating the intake air heater system is active.

Follow the steps in the "Normal Starting" procedure except:

  1. The "Wait to Start" telltale will remain on for a period of time that varies depending on the engine temperature.
  2. While the "Wait to Start" telltale is on, the instrument cluster will additionally display a gauge or bar whose initial length represents the full "Wait to Start" time period. Its length will decrease until it disappears when the "Wait to Start" time has elapsed.

CAUTION!

If the "Water in Fuel Indicator Light" remains on, DO NOT START the engine before you drain the water from the fuel filters to avoid engine damage ↩ page 375.

  1. After the "Wait to Start" telltale goes off, place the ignition switch in the START position. Do not press the accelerator during starting.

CAUTION!

Do not crank engine for more than 25 seconds at a time or starter motor damage may result. Turn the ignition switch to the OFF position and wait at least two minutes for the starter to cool before repeating start procedure.

  1. After engine start-up, check that the oil pressure warning light has turned off.
  2. Release the parking brake and drive.

NOTE:

  • Engine idle speed will automatically increase to 1,000 RPM and engage the Variable Geometry Turbocharger at low coolant temperatures to improve engine warm-up.
  • Automatic equipped vehicles with optional Keyless Enter-N-Go - If the ENGINE START/STOP button is pushed once while in PARK with the ignition off and driver's foot on the brake pedal, the vehicle will automatically crank and start after the "Wait to Start" time has elapsed. If it is desired to abort the start process before it completes, the driver's foot should be fully removed from the brake pedal prior to pushing the start button again in order for the ignition to move directly to off.
  • If the engine stalls, or if the ignition switch is left ON for more than two minutes after the "Wait To Start" telltale goes out, reset the intake air heater by turning the ignition switch to the OFF position for at least five seconds and then back ON. Repeat steps 1 through 5 of "Starting Procedure – Engine Manifold Air Temperature 0°F To 66°F (-18°C to 19°C)."

STARTING PROCEDURE — ENGINE MANIFOLD AIR TEMPERATURE BELOW 0°F (-18°C)

In extremely cold weather below 0^ F ( -18^ C) it may be beneficial to cycle the intake air heater twice before attempting to start the engine. This can be accomplished by turning the ignition off for at least five seconds and then back ON after the “Wait to Start” telltale has turned off, but before the engine is started. However, excessive cycling of the intake air heater will result in damage to the heater elements or reduced battery voltage.

NOTE:

If multiple pre-heat cycles are used before starting, additional engine run time may be required to maintain battery state of charge at a satisfactory level.

  1. If the engine stalls after the initial start, the ignition must be turned to the OFF position for at least five seconds and then to the ON position to recycle the intake air heater.

NOTE:

Excessive white smoke and poor engine performance will result if intake air heater is not recycled.

  1. Heat generated by the intake air heater dissipates rapidly in a cold engine. If more than two minutes pass between the time the "Wait to Start" telltale turns off and the engine is started, recycle the intake air heater by turning the ignition switch to the OFF position for at least five seconds and then back ON.
  2. If the vehicle is driven and vehicle speed exceeds 19 mph (31 km/h) before the intake air heater post-heat (after start) cycle is complete, the intake air heater will shut off.
  3. If the engine is cranked for more than 10 seconds, the post-heat cycle will turn off.

NOTE:

  • Engine idle speed will automatically increase to 1,000 RPM and engage the Variable Geometry Turbocharger at low coolant temperatures to improve engine warm-up.
  • When a diesel engine is allowed to run out of fuel or the fuel gels at low temperatures, air is pulled into the fuel system. If your engine has run out of fuel → page 378.
  • If the engine stalls, or if the ignition switch is left ON for more than two minutes after the "Wait to Start" telltale goes out, reset the intake air heater by turning the ignition switch to the OFF position for at least five seconds and then back ON. Repeat steps 1 through 5 of "Starting Procedure – Engine Manifold Air Temperature 0°F to 60°F (-18°C to 19°C)."

STARTING FLUIDS

WARNING!

Starting fluids or flammable liquids must never be used in the Cummins diesel engine (see Warning label). Never pour diesel fuel, flammable liquid, starting fluids (ether) into the air cleaner canister, air intake piping, or turbocharger inlet in an attempt to start the vehicle. This could result in a flash fire and explosion causing serious personal injury and engine damage.

The engine is equipped with an automatic electric air preheating system. If the instructions in this manual are followed, the engine should start in all conditions.

WARNING!

  • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.
  • When leaving the vehicle, always remove the key fob and lock your vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the gear selector. Do not leave the key fob in or near the vehicle (or in a location accessible to children), and do not leave the ignition of a vehicle equipped with Keyless Enter-N-Go in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.

Observe the following when the engine is operating.

  • All message center lights are off.
  • Malfunction Indicator Light (MIL) is off.
  • Engine oil pressure is above 10 psi (69 kPa) at idle.

- Voltmeter operation:

The voltmeter may show a gauge fluctuation at various engine temperatures. This cycling operation is caused by the post-heat cycle of the intake manifold heater system. The number of cycles and the length of the cycling operation is controlled by the engine control module. Post-heat operation can run for several minutes, and then the electrical system and voltmeter needle will stabilize.

The cycling action will cause temporary dimming of the headlamps, interior lamps, and also a noticeable reduction in blower motor speed.

COLD WEATHER PRECAUTIONS

Operation in ambient temperature below 32^ F ( 0^ C) may require special considerations. The following charts suggest these options: Fuel Operating Range

NOTE: Use "Ultra Low Sulfur Diesel (ULSD) Fuels" ONLY.

RAM 4500 Chassis Cab (2021) - COLD WEATHER PRECAUTIONS - 1

text_image 5 -1 -7 -12 -17 -23 -29 40 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 #2 Ultra Low Sulfur Diesel (ULSD) #2 ULS Diesel Fuel & Mopar Fuel Additive - ULS Climatized Diesel Fuel #1 ULS Diesel Fuel*

0563090798US

Fuel Operating Range Chart

*Number 1 ULSD Fuel should only be used where extended arctic conditions (0°F/-18°C) exist".

NOTE:

  • Use of Climatized ULSD or Number 1 ULSD Fuel results in a noticeable decrease in fuel economy.
  • Climatized ULSD Fuel is a blend of Number 2 ULSD and Number 1 ULSD Fuels which reduces the temperature at which wax crystals form in fuel.
  • The fuel grade should be clearly marked on the pump at the fuel station.
  • The engine requires the use of "ULSD Fuel". Use of incorrect fuel could result in engine and exhaust system damage → page 433.
  • If climatized or diesel Number 1 ULSD Fuel is not available, and you are operating below (20°F/-6°C), in sustained arctic conditions, Mopar Premium Diesel Fuel Treatment (or equivalent) is recommended to avoid gelling (see Fuel Operating Range Chart).
  • Under some circumstances increased engine noise may be audible in the seconds following a cold start. This is most likely to occur when using fuel that isn't blended for the ambient temperature present. This may occur on an unseasonably cold day or when a

truck is fueled in a warmer climate and driven to a colder climate. The noise can typically be prevented by using Mopar Premium Diesel Fuel Treatment as recommended (see Fuel Operating Range Chart).

Engine Oil Usage

For the correct engine oil viscosity ↩ page 367.

Winter Front Cover Usage

A Winter front or cold weather cover is to be used in ambient temperatures below 32^ F ( 0^ C), especially during extended idle conditions. This cover is equipped with four flaps for managing total grille opening in varying ambient temperatures. If a Winter front or cold weather cover is to be used the flaps should be left in the full open position to allow air flow to the charge air cooler and automatic transmission oil cooler. When ambient temperatures drop below 0^ F ( -17^ C) the four flaps need to be closed. A suitable cold weather cover is available from a Mopar dealer.

Battery Blanket Usage

A battery loses 60% of its cranking power as the battery temperature decreases to 0^ F (-18°C). For the same decrease in temperature, the engine requires twice as much power to crank at the same RPM. The use of 120 Volts AC powered battery blankets will greatly increase starting capability at low temperatures. Suitable battery blankets are available from an authorized Mopar dealer.

Engine Warm-Up

Avoid full throttle operation when the engine is cold. When starting a cold engine, bring the engine up to operating speed slowly to allow the oil pressure to stabilize as the engine warms up.

NOTE:

High-speed, no-load running of a cold engine can result in excessive white smoke and poor engine performance. No-load engine speeds should be kept under 1,000 RPM during the warm-up period, especially in cold ambient temperature conditions.

Your vehicle is equipped with an engine warm-up protection feature that may limit engine performance after cold starting at low ambient temperatures. The length of time engine speed is limited is dependent upon engine coolant temperature. Engine speed may be briefly limited to 1,000 RPM after starting with coolant temperature below freezing conditions, and may be limited to 1,000 RPM for up to approximately two minutes under more severe cold conditions.

NOTE:

If ambient temperatures are low and the coolant temperature is below 180^ F ( 82^ C), the engine idle speed will slowly increase to 1,000 RPM after two minutes of idle, if the following conditions are met:

  • Foot is off brake pedal and throttle pedal.
    ● Automatic transmission is in PARK.
    ● Vehicle speed is 0 mph (0 km/h).
  • Applying the throttle will cancel fast idle.
  • Operating the exhaust brake at idle will greatly improve warm-up rate and will help keep the engine close to operating temperature during extended idle.

ENGINE IDLING

Avoid prolonged idling, long periods of idling may be harmful to your engine because combustion chamber temperatures can drop so low that the fuel may not burn completely. Incomplete combustion allows carbon and varnish to form on piston rings, engine valves, and injector nozzles. Also, the unburned fuel can enter the crankcase, diluting the oil and causing rapid wear to the engine.

If the engine is allowed to idle or the truck is driven on low engine speed drive cycles for more than two hours, the system will automatically enter an emissions operating mode that will increase the engine idle speed to 900 RPM (1,050 RPM for Chassis Cab). While in this mode, which is designed to help maintain the Diesel Particulate Filter, the engine idle speed will return to normal when the brake pedal is applied. A small change in engine tone or a slight change in engine performance while accelerating may also be noticeable at speeds below 20 mph (32 km/h). This operating mode may last for up to an hour of idle time, or around 20 minutes of driving time.

Your truck may have been ordered with an optional voltage monitoring idle up feature. If a load is placed on the electrical system while the truck is in PARK, this feature will attempt to maintain normal system voltage by automatically increasing engine idle speed. You may notice several consecutive increases in idle speed, up to a maximum of 1,450 RPM, as the system will attempt to utilize the smallest increase in idle speed necessary to maintain normal system voltage. The idle speed will return to normal when either the electrical load is removed, or when the brake pedal is applied.

NOTE:

For instrument cluster display messages related to the vehicle's exhaust system ➤ page 90.

Idle-Up Feature

The driver-controlled high idle speed feature will help increase cylinder temperatures and provide additional cab heat, however, excessive idling may still cause the exhaust after-treatment system to not properly regenerate. Extended periods of idle time should be avoided.

The Idle-Up feature uses the Cruise Control buttons to increase engine idle speed and quickly warm the vehicle's interior.

  1. With the transmission in PARK, the parking brake applied, and the engine running, turn on the Cruise Control, then push the SET (-) button.

  2. The engine RPM will go up to 1,100 RPM. To increase the RPM, push and hold the RES (+) button and the idle speed will increase to approximately 1,500 RPM. To decrease the RPM, push and hold the SET (-) button and the idle speed will decrease to approximately 1,100 RPM.

  3. To cancel the Idle-Up feature, either push the CANCEL button, push the ON/OFF button, or press the brake pedal.

NOISE

Diesel engines can create noises that may seem as a concern. The nature of a diesel engine is compression ignition where compressed air and fuel are mixed and ignited. Weather, barometric pressure, altitude and temperature will affect how fuel is ignited in the engine. Engines will sound different from day to day or previous model years. Clicking, ticking, or light knocking is normal and will change from day to day, as the engine breaks in, and can vary with changes in ambient temperature; this is normal. Diesel equipped vehicles also have an exhaust after treatment system to reduce emissions utilizing a Diesel Particulate Filter (DPF) and a Selective Reduction Catalyst (SCR).

The SCR reduces Nox using the Diesel Exhaust Fluid (DEF) system. DEF is injected directly into the SCR through an dosing module. This process will create a clicking sound and at times, will make noise even with the vehicle shut off. This is normal as the DEF dosing module is purging DEF. Fuel pump noise may increase during low speed/light load conditions when ambient temperature is above 100^ F ( 38^ C), and when fuel tank level is below 10%. This is a normal condition of the fuel system and controls strategy. If at any time the check engine light is on, please visit an authorized dealer.

STOPPING THE ENGINE

Idle the engine a few minutes before routine shutdown. After full load operation, idle the engine three to five minutes before shutting it down. This idle period will allow the lubricating oil and coolant to carry excess heat away from the combustion chamber, bearings, internal components, and turbocharger. This is especially important for turbocharged, charge air-cooled engines. Refer to the following chart for proper engine shutdown:

Driving Condition LoadTurbocharger TemperatureIdle Time (min.) Before Engine Shutdown
Stop and Go Empty CoolLess than One
Stop and Go Medium - One
Highway Speeds MediumWarm Two
City TrafficMaximum GCWR-Three
Highway SpeedsMaximum GCWR-Four
Uphill GradeMaximum GCWRHotFive

IDLE SHUTDOWN

This feature can be enabled so that the truck will automatically shutdown when the truck has been idling for a set period of time when the engine is at operating temperature. Idle time can be set in 5 minute increments between 5 and 60 minutes. See an authorized dealer to enable this feature.

NOTE:

The idle shut down timer is disabled while the PTO (Power Take-off) is active.

PROGRAMMABLE MAXIMUM VEHICLE SPEED

This feature allows the owner to set a maximum vehicle speed for the vehicle. The 2500 and 3500 Series maximum vehicle speed can be set between 40 mph to 87 mph (64 km/h to 140 km/h). The 4500/5500 Series maximum vehicle speed can be set between 40 mph to 85 mph (64 km/h to 136 km/h). See an authorized dealer to enable this feature.

NOTE:

DO NOT set the maximum vehicle speed to a value greater than what the vehicle tires are rated for.

OPERATING PRECAUTIONS

Avoid Overheating The Engine

The temperature of the engine coolant (antifreeze: a mixture of 50% ethylene-glycol and 50% water) must not exceed the normal range of the temperature gauge 240°F (116°C) with a 21 psi (145 kPa) coolant pressure cap.

Usually the engine coolant (antifreeze) temperature indicated during operation will be to the left of center in the normal range of the gauge.

Avoid Low Coolant Temperature Operation

Continual operation at low engine coolant (antifreeze) temperature below the normal range on the gauge 140°F (60°C) can be harmful to the engine. Low engine coolant (antifreeze) temperature can cause incomplete combustion which allows carbon and varnish

to form on piston rings and injector nozzles. Also, the unburned fuel can enter the crankcase, diluting the lubricating oil and causing rapid wear to the engine.

COOLING SYSTEM TIPS

To reduce potential for engine and transmission overheating in high ambient temperature conditions, take the following actions:

  • City Driving — When stopped, shift the transmission into NEUTRAL and increase engine idle speed.
  • Highway Driving — Reduce your speed.
  • Up Steep Hills — Select a lower transmission gear.
  • Air Conditioning — Turn it off temporarily.

Do Not Operate The Engine With Low Oil Pressure

When the engine is at normal operating temperature, the minimum oil pressures required are:

Idle 700 to 800 RPM 10 psi (69 kPa)

Full speed and load 30 psi (207 kPa)

CAUTION!

If oil pressure falls to less than normal readings, shut the engine off immediately. Failure to do so could result in immediate and severe engine damage.

Do Not Operate The Engine With Failed Parts

All engine failures give some warning before the parts fail. Be on the alert for changes in performance, sounds, and visual evidence that the engine requires service. Some important clues are:

  • Engine misfiring or vibrating severely.
  • Sudden loss of power.
  • Unusual engine noises.
  • Fuel, oil or coolant leaks.

  • Sudden change, outside the normal operating range, in the engine operating temperature.

  • Excessive smoke.
  • Oil pressure drop.

DIESEL PARTICULATE FILTER (DPF) MANUAL REGENERATION - IF EQUIPPED

On equipped Chassis Cabs, a manual regeneration can be enable through the instrument cluster. The manual regeneration will allow the DPF to complete a regeneration, lowering the soot level without having to drive the vehicle. The vehicle must be in PARK to access this feature, and the fuel level must be over 12.5% full. A message displaying the time left on the regeneration will appear on the instrument cluster, and the instrument cluster will display the soot level ↩ page 90.

ENGINE BLOCK HEATER — IF EQUIPPED

The engine block heater warms the engine, and permits quicker starts in cold weather. Connect the cord to a standard 110-115 Volt AC electrical outlet with a grounded, three-wire extension cord.

Gas Engine Only

The engine block heater cord is routed through the grille by the right front tow hook.

It includes a removable cap that is secured by a tethered strap. It also has a c-clip that is used for storage when not in use for the Winter months. During Winter months, remove the heater cord wiring assembly from itself on the c-clip.

The engine block heater must be plugged in at least one hour to have an adequate warming effect on the engine.

WARNING!

Remember to disconnect the engine block heater cord before driving. Damage to the 110-115 Volt electrical cord could cause electrocution.

Diesel Engine Only

The engine block heater warms engine coolant and permits quicker starts in cold weather. Connect the heater cord to a ground-fault interrupter protected 110–115 Volt AC electrical outlet with a grounded, three-wire extension cord.

The engine block heater cord is routed under the hood to the right side and can be located just behind the grille near the headlamp.

NOTE:

The engine block heater cord is a factory installed option. If your vehicle is not equipped, heater cords are available from an authorized Mopar dealer.

The block heater must be plugged in at least one hour to have an adequate warming effect on the coolant.

WARNING!

Remember to disconnect the engine block heater cord before driving. Damage to the 110-115 Volt electrical cord could cause electrocution.

NOTE:

The block heater will require 110 Volts AC and 6.5 Amps to activate the heater element.

Block Heater Usage

For ambient temperatures below 0^ F (-18°C), engine block heater usage is recommended.

For ambient temperatures below -20^ (-29°C), engine block heater usage is required.

ENGINE BREAK-IN RECOMMENDATIONS — GASOLINE ENGINE

A long break-in period is not required for the engine and drivetrain (transmission and axle) in your vehicle.

Drive moderately during the first 300 miles (500 km). After the initial 60 miles (100 km), speeds up to 50 or 55 mph (80 or 90 km/h) are desirable.

While cruising, brief full-throttle acceleration within the limits of local traffic laws contributes to a good break-in. Wide-open throttle acceleration in low gear can be detrimental and should be avoided.

The engine oil installed in the engine at the factory is a high-quality energy conserving type lubricant. Oil changes should be consistent with anticipated climate conditions under which vehicle operations will occur. For the recommended viscosity and quality grades ➤ page 440.

CAUTION!

Never use Non-Detergent Oil or Straight Mineral Oil in the engine or damage may result.

NOTE:

A new engine may consume some oil during its first few thousand miles (kilometers) of operation. This should be considered a normal part of the break-in and not interpreted as a problem. Please check your oil level with the engine oil indicator often during the break in period. Add oil as required.

ENGINE BREAK-IN RECOMMENDATIONS — DIESEL ENGINE

The Cummins® Turbo Diesel engine does not require a break-in period due to its construction. Normal operation is allowed, providing the following recommendations are followed:

  • Warm up the engine before placing it under load.
  • Do not operate the engine at idle for prolonged periods.

  • Use the appropriate transmission gear to prevent engine lugging.

  • Observe vehicle oil pressure and temperature indicators.
  • Check the coolant and oil levels frequently.
  • Vary throttle position at highway speeds when carrying or towing significant weight.

NOTE:

Light duty operation such as light trailer towing or no load operation will extend the time before the engine is at full efficiency. Reduced fuel economy and power may be seen at this time.

For additional vehicle break-in requirements page 205.

Because of the construction of the Cummins® Turbo Diesel engine, engine run-in is enhanced by loaded operating conditions which allow the engine parts to achieve final finish and fit during the first 6,000 miles (10,000 km).

PARKING BRAKE

Before leaving the vehicle, make sure that the parking brake is fully applied. Also, be certain to leave the transmission in PARK.

The foot operated parking brake is located below the lower left corner of the instrument panel. To apply the parking brake, firmly push the parking brake pedal fully. To release the parking brake, pull the parking brake release handle.

RAM 4500 Chassis Cab (2021) - PARKING BRAKE - 1

natural_image Interior view of a vehicle showing a door, seatbelt, and exhaust pipe (no text or symbols visible)

Parking Brake Release

When the parking brake is applied with the ignition switch ON, the "Brake Warning Light" in the instrument cluster will illuminate.

NOTE:

  • When the parking brake is applied and the transmission is placed in gear, the "Brake Warning Light" will flash. If vehicle speed is detected, a chime will sound to alert the driver. Fully release the parking brake before attempting to move the vehicle.
  • This light only shows that the parking brake is applied. It does not show the degree of brake application.

When parking on a hill, it is important to turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade. Apply the parking brake before placing the gear selector in PARK, otherwise the load on the transmission locking mechanism may make it difficult to move the gear selector out of PARK. The parking brake should always be applied whenever the driver is not in the vehicle.

WARNING!

  • Never use the PARK position as a substitute for the parking brake. Always apply the parking brake fully when parked to guard against vehicle movement and possible injury or damage.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Leaving unattended children in a vehicle is dangerous for a number of reasons. A child or others could be seriously or fatally injured.
  • Do not leave the key fob in or near the vehicle, or in a location accessible to children, and do not leave a vehicle equipped with Keyless Enter-N-Go in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.
  • Be sure the parking brake is fully disengaged before driving; failure to do so can lead to brake failure and a collision.
  • Always fully apply the parking brake when leaving your vehicle or it may roll and cause damage or injury. Also, be certain to leave the transmission in PARK. Failure to do so may cause the vehicle to roll and cause damage or injury.

CAUTION!

If the Brake System Warning Light remains on with the parking brake released, a brake system malfunction is indicated. Have the brake system serviced by an authorized dealer immediately.

The purpose of the exhaust brake (engine braking) feature is to supply negative (braking) torque from the engine. Typically, the engine braking is used for, but not limited to, vehicle towing applications where vehicle braking can be achieved by the internal engine power, thereby sparing the mechanical brakes of the vehicle.

Benefits of the exhaust brake are:

  • Vehicle driving control.
  • Reduced brake fade.
  • Longer brake life.
  • Faster cab warm-up.

The exhaust brake feature will only function when the driver toggles it on by pushing the exhaust brake button until the "Exhaust Brake Indicator" is illuminated. Normal (Full Strength) exhaust brake mode is indicated by a yellow "Exhaust Brake Indicator".

RAM 4500 Chassis Cab (2021) - CAUTION! - 1

text_image ALL TRALES HEIGHT TOWN HAILE AUX 1 AUX 2 AUX 3 AUX 4 A0804000235US

Exhaust Brake Switch

Once the "Exhaust Brake Indicator" is illuminated and the vehicle is moving faster than 5 mph (8 km/h); the exhaust brake will automatically operate when the driver removes pressure from the accelerator pedal. Exhaust braking is most effective when the engine RPM is higher. The automatic transmission will downshift more aggressively in TOW/HAUL mode when the exhaust brake is enabled to increase brake performance.

WARNING!

Do not use the exhaust brake feature when driving in icy or slippery conditions as the increased engine braking can cause the rear wheels to slide and the vehicle to swing around with the possible loss of vehicle control, which may cause an accident possibly resulting in personal injury or death.

CAUTION!

Use of aftermarket exhaust brakes is not recommended and could lead to engine damage

NOTE:

For optimum braking power it is recommended to use the exhaust brake while in TOW/HAUL mode.

The exhaust brake feature can also be used to reduce the engine warm-up time. To use the exhaust brake as a warm-up device, the vehicle must be stopped or moving less than 5 mph (8 km/h), the "Exhaust Brake Indicator" must be on, and the coolant temperature must be below 180°F (82°C) and ambient temperature below 60°F (16°C).

Automatic "Smart" Exhaust Brake

Automatic "Smart" Exhaust Brake technology delivers smoother, less aggressive exhaust braking characteristics during downhill descents. Although it can apply full exhaust braking force if needed, Automatic "Smart" Exhaust Brake may not apply obvious braking if the vehicle speed is not increasing. Automatic "Smart" Exhaust Brake is intended to maintain vehicle speed, while Full Exhaust Brake is intended to reduce vehicle speed.

Automatic "Smart" Exhaust Brake can be enabled by pushing the exhaust brake button (on the center stack) again anytime after the normal Full Exhaust Brake has been turned on. The "Exhaust Brake Indicator" in the instrument cluster display will change from Yellow to Green when Automatic "Smart" Exhaust Brake is enabled. Pushing the exhaust brake button again will toggle the exhaust brake mode to off.

AUTOMATIC TRANSMISSION

You must press and hold the brake pedal while shifting out of PARK.

WARNING!

  • It is dangerous to shift out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly pressing the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and your foot is firmly pressing the brake pedal.
  • The transmission may not engage PARK if the vehicle is moving. Always bring the vehicle to a complete stop before shifting to PARK, and verify that the transmission gear position indicator solidly indicates PARK (P) without blinking. Ensure that the vehicle is completely stopped, and the PARK position is properly indicated, before exiting the vehicle.

(Continued)

WARNING! (Continued)

  • Unintended movement of a vehicle could injure those in or near the vehicle. As with all vehicles, you should never exit a vehicle while the engine is running. Before exiting a vehicle, always come to a complete stop, then apply the parking brake, shift the transmission into PARK, turn the engine OFF, and remove the key fob. When the ignition is in the LOCK/OFF (key removal) position, (or, with Keyless Enter-N-Go, when the ignition is in the OFF mode) the transmission is locked in PARK, securing the vehicle against unwanted movement.
  • When leaving the vehicle, always make sure the ignition is in the OFF mode, remove the key fob from the vehicle, and lock the vehicle.
  • Never use the PARK position as a substitute for the parking brake. Always apply the parking brake fully when exiting the vehicle to guard against vehicle movement and possible injury or damage.

(Continued)

WARNING! (Continued)

  • Your vehicle could move and injure you and others if it is not in PARK. Check by trying to move the gear selector out of PARK with the brake pedal released. Make sure the transmission is in PARK before exiting the vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the transmission gear selector.
  • Do not leave the key fob in or near the vehicle (or in a location accessible to children), and do not leave the ignition (in a vehicle equipped with Keyless Enter-N-Go) in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.

CAUTION!

  • Shift into or out of PARK or REVERSE only after the vehicle has come to a complete stop.
  • Do not shift between PARK, REVERSE, NEUTRAL, or DRIVE when the engine is above idle speed.
  • Before shifting into any gear, make sure your foot is firmly pressing the brake pedal.

IGNITION PARK INTERLOCK

This vehicle is equipped with an Ignition Park Interlock which requires the transmission to be in PARK before the ignition can be turned to the OFF mode. This helps the driver avoid inadvertently leaving the vehicle without placing the transmission in PARK. This system also locks the transmission in PARK whenever the ignition is in the OFF mode.

NOTE:

The transmission is NOT locked in PARK when the ignition is in the ACC mode (even though the engine will be off). Ensure that the transmission is in PARK, and the ignition is OFF (not in ACC mode) before exiting the vehicle.

This vehicle is equipped with a BTSI system that holds the transmission gear selector in PARK unless the brakes are applied. For vehicles with 8-speed transmission, to shift the transmission out of PARK, the engine must be running and the brake pedal must be pressed. The brake pedal must also be pressed to shift from NEUTRAL into DRIVE or REVERSE when the vehicle is stopped or moving at low speeds.

For vehicles with 6-speed transmission, to shift the transmission out of PARK, the ignition must be in the ON/RUN mode (engine running or not) and the brake pedal must be pressed.

The BTSI will timeout if brake pedal is pressed for three minutes or longer continuously while in park. It can be reset by releasing the brake for more then three seconds, then reapplying the brake pedal or cycling the ignition.

The transmission is controlled using a rotary electronic gear selector located on the instrument panel. The transmission gear range (PRND) is displayed both above the gear

STARTING AND OPERATING 141

selector and in the instrument cluster. To select a gear range, simply rotate the gear selector. You must press the brake pedal to shift the transmission out of PARK (or NEUTRAL, when the vehicle is stopped or moving at low speeds). To shift past multiple gear ranges at once (such as PARK to DRIVE), simply rotate the gear selector to the appropriate detent. Select the DRIVE range for normal driving.

NOTE:

In the event of a mismatch between the gear selector position and the actual transmission gear (for example, driver selects PARK while driving), the position indicator will blink continuously until the selector is returned to the proper position, or the requested shift can be completed.

The electronically-controlled transmission adapts its shift schedule based on driver inputs, along with environmental and road conditions. The transmission electronics are self-calibrating; therefore, the first few shifts on a new vehicle may be somewhat abrupt. This is a normal condition, and precision shifts will develop within a few hundred miles (kilometers).

Only shift from DRIVE to PARK or REVERSE when the accelerator pedal is released and the vehicle is stopped. Be sure to keep your foot on the brake pedal when shifting between these gears.

The transmission gear selector has only PARK, REVERSE, NEUTRAL, and DRIVE positions. Manual downshifts can be made using the Electronic Range Select (ERS) shift control. Pressing the GEAR-/GEAR + switches (on the steering wheel) while in the DRIVE position will select the highest available transmission gear, and will display that gear limit in the instrument cluster as 1, 2, 3, etc page 145. Some models will display both the selected gear limit, and the actual current gear, while in ERS mode.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image PRND A0606000075US

Electronic Transmission Gear Selector

Gear Ranges

Do not press the accelerator pedal when shifting from PARK or NEUTRAL into another gear range.

NOTE:

After selecting any gear range, wait a moment to allow the selected gear to engage before accelerating. This is especially important when the engine is cold.

PARK (P)

This range supplements the parking brake by locking the transmission. The engine can be started in this range. Never attempt to use PARK while the vehicle is in motion. Apply the parking brake when exiting the vehicle in this range.

When parking on a hill, apply the parking brake before shifting the transmission to PARK. As an added precaution, turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade.

NOTE:

On four-wheel drive vehicles be sure that the transfer case is in a drive position.

When exiting the vehicle, always:

  • Apply the parking brake.
  • Shift the transmission into PARK.
  • Turn the engine off.
  • Remove the key fob.

WARNING!

  • Never use the PARK position as a substitute for the parking brake. Always apply the parking brake fully when exiting the vehicle to guard against vehicle movement and possible injury or damage.
  • Your vehicle could move and injure you and others if it is not in PARK. Check by trying to move the transmission gear selector out of PARK with the brake pedal released. Make sure the transmission is in PARK before exiting the vehicle.

(Continued)

WARNING! (Continued)

  • The transmission may not engage PARK if the vehicle is moving. Always bring the vehicle to a complete stop before shifting to PARK, and verify that the transmission gear position indicator solidly indicates PARK (P) without blinking. Ensure that the vehicle is completely stopped, and the PARK position is properly indicated, before exiting the vehicle.
  • It is dangerous to shift out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly pressing the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and your foot is firmly pressing the brake pedal.

(Continued)

WARNING! (Continued)

  • Unintended movement of a vehicle could injure those in or near the vehicle. As with all vehicles, you should never exit a vehicle while the engine is running. Before exiting a vehicle, always come to a complete stop, then apply the parking brake, shift the transmission into PARK, and turn the ignition OFF. When the ignition is in the OFF mode, the transmission is locked in PARK, securing the vehicle against unwanted movement.
  • When exiting the vehicle, always make sure the ignition is in the OFF mode, remove the key fob from the vehicle, and lock the vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the transmission gear selector.

(Continued)

WARNING! (Continued)

  • Do not leave the key fob in or near the vehicle (or in a location accessible to children), and do not leave the ignition in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.

CAUTION!

  • DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range, as this can damage the drivetrain.
  • Before moving the transmission gear selector out of PARK, you must start the engine, and also press the brake pedal. Otherwise, damage to the gear selector could result.

The following indicators should be used to ensure that you have properly engaged the transmission into the PARK position:

  • Look at the transmission gear position display and verify that it indicates the PARK position (P), and is not blinking.
  • With brake pedal released, verify that the gear selector will not move out of PARK.

REVERSE (R)

This range is for moving the vehicle backward. Shift into REVERSE only after the vehicle has come to a complete stop.

NEUTRAL (N)

Use this range when the vehicle is standing for prolonged periods with the engine running. Apply the parking brake and shift the transmission into PARK if you must exit the vehicle.

WARNING!

Do not coast in NEUTRAL and never turn off the ignition to coast down a hill. These are unsafe practices that limit your response to changing traffic or road conditions. You might lose control of the vehicle and have a collision.

CAUTION!

Towing the vehicle, coasting, or driving for any other reason with the transmission in NEUTRAL can cause severe transmission damage.

For Towing A Disabled Vehicle ↩ page 350.

For Recreational Towing ↩ page 215.

DRIVE (D)

This range should be used for most city and highway driving. It provides the smoothest upshifts and downshifts, and the best fuel economy. The transmission automatically upshifts through all forward gears.

When frequent transmission shifting occurs (such as when operating the vehicle under heavy loading conditions, in hilly terrain, traveling into strong head winds, or while towing a heavy trailer), select TOW/HAUL mode or use the Electronic Range Select (ERS) shift control to select a lower gear range → page 145. Under these conditions, using a lower gear range will improve performance and extend transmission life by reducing excessive shifting and heat build-up.

During extremely cold temperatures (-22°F [-30°C] or below), transmission operation may be modified depending on engine and transmission temperature as well as vehicle speed. Normal operation will resume once the transmission temperature has risen to a suitable level.

Transmission Limp Home Mode

Transmission function is monitored electronically for abnormal conditions. If a condition is detected that could result in transmission damage, Transmission Limp Home Mode is activated. In this mode, the transmission may operate only in certain gears, or may not shift at all. Vehicle performance may be severely degraded and the engine may stall. In some situations, the transmission may not re-engage if the engine is turned off and restarted. The Malfunction Indicator Light (MIL) may be illuminated. A message in the instrument cluster will inform the driver of the more serious conditions, and indicate what actions may be necessary.

In the event of a momentary problem, the transmission can be reset to regain all forward gears by performing the following steps:

NOTE:

In cases where the instrument cluster message indicates the transmission may not re-engage after engine shutdown, perform this procedure only in a desired location (preferably, at an authorized dealer).

  1. Stop the vehicle.
  2. Shift the transmission into PARK, if possible. If not, shift the transmission to NEUTRAL.
  3. Push and hold the ignition switch until the engine turns off.
  4. Wait approximately 30 seconds.
  5. Restart the engine.
  6. Shift into the desired gear range. If the problem is no longer detected, the transmission will return to normal operation.

NOTE:

Even if the transmission can be reset, we recommend that you visit an authorized dealer at your earliest possible convenience. An authorized dealer has diagnostic equipment to assess the condition of your transmission.

If the transmission cannot be reset, authorized dealer service is required.

Electronic Range Select (ERS) Operation

The ERS shift control allows the driver to limit the highest available gear when the transmission is in DRIVE. For example, if you set the transmission gear limit to FOURTH gear, the transmission will not shift above FOURTH gear (except to prevent engine overspeed), but will shift through the lower gears normally.

You can switch between DRIVE and ERS mode at any vehicle speed. When the transmission gear selector is in DRIVE, the transmission will operate automatically, shifting between all available gears. Tapping the GEAR - switch (on the steering wheel) will activate ERS mode, display the current gear in the instrument cluster, and set that gear as the top available gear. Once in ERS mode, tapping the GEAR - or GEAR + switch will change the top available gear.

RAM 4500 Chassis Cab (2021) - Electronic Range Select (ERS) Operation - 1

text_image 车灯箱头(2) ① ② A0606000076US

ERS Control

1 - GEAR + Switch
2 - GEAR - Switch

To exit ERS mode, simply push and hold the GEAR + switch until the gear limit display disappears from the instrument cluster.

WARNING!

Do not downshift for additional engine braking on a slippery surface. The drive wheels could lose their grip and the vehicle could skid, causing a collision or personal injury.

When to Use TOW/HAUL Mode

When driving in hilly areas, towing a trailer, carrying a heavy load, etc., and frequent transmission shifting occurs, push the TOW/HAUL switch to activate TOW/HAUL mode. This will improve performance and reduce the potential for transmission overheating or failure due to excessive shifting.

RAM 4500 Chassis Cab (2021) - When to Use TOW/HAUL Mode - 1

text_image ALT TRAVEL HEIGHT TOW/ HAUL AUX 1 AUX 2 AUX 3 AUX 4 A0606000077US

TOW/HAUL Switch

The "TOW/HAUL Indicator Light" will illuminate in the instrument cluster to indicate that TOW/HAUL mode has been activated. Pushing the switch a second time restores normal operation. Normal operation is always the default at engine start-up. If TOW/HAUL mode is desired, the switch must be pushed each time the engine is started.

WARNING!

Do not use the TOW/HAUL feature when driving in icy or slippery conditions. The increased engine braking can cause the rear wheels to slide, and the vehicle to swing around with the possible loss of vehicle control, which may cause an accident possibly resulting in personal injury or death.

SIX-SPEED AUTOMATIC

TRANSMISSION — IF EQUIPPED

Chassis Cab models may use either the AS66RC or AS69RC transmission (which are equipped with a Power Take-Off (PTO) access cover on the side of the transmission case).

The transmission gear position display (located in the instrument cluster) indicates the transmission gear range. The gear selector is mounted on the right side of the steering column. You must press the brake pedal to move the gear selector out of PARK ↩ page 141. Pull the gear selector toward you when shifting into REVERSE or PARK, or when shifting out of PARK.

The electronically-controlled transmission provides a precise shift schedule. The transmission electronics are self-calibrating; therefore, the first few shifts on a new vehicle may be somewhat abrupt. This is a normal condition, and precision shifts will develop within a few hundred miles (kilometers).

Only shift from DRIVE to PARK or REVERSE when the accelerator pedal is released and the vehicle is stopped. Be sure to keep your foot on the brake pedal when shifting between these gears.

The transmission gear selector has only PARK, REVERSE, NEUTRAL, and DRIVE shift positions. Manual downshifts can be made using the Electronic Range Select (ERS) shift control. Pushing the ERS (-/+) switches (on the steering wheel) while in the DRIVE position will select the highest available transmission gear, and will display that gear limit in the instrument cluster as 1, 2, 3, etc page 150. Some models will display both the selected gear limit, and the actual current gear, while in ERS mode.

Gear Ranges

Do not press the accelerator pedal when shifting from PARK or NEUTRAL into another gear range.

NOTE:

After selecting any gear range, wait a moment to allow the selected gear to engage before accelerating. This is especially important when the engine is cold.

PARK (P)

This range supplements the parking brake by locking the transmission. The engine can be started in this range. Never attempt to use PARK while the vehicle is in motion. Apply the parking brake when exiting the vehicle in this range.

When parking on a hill, apply the parking brake before shifting the transmission to PARK, otherwise the load on the transmission locking mechanism may make it difficult to move the gear selector out of PARK. As an added precaution, turn the front wheels toward the curb on a downhill grade and away from the curb on an uphill grade.

NOTE:

On four-wheel drive vehicles be sure that the transfer case is in a drive position.

When exiting the vehicle, always:

  • Apply the parking brake.
  • Shift the transmission into PARK.
  • Turn the engine off.
  • Remove the key fob.

WARNING!

  • Never use the PARK position as a substitute for the parking brake. Always apply the parking brake fully when exiting the vehicle to guard against vehicle movement and possible injury or damage.
  • Your vehicle could move and injure you and others if it is not in PARK. Check by trying to move the gear selector out of PARK with the brake pedal released. Make sure the transmission is in PARK before exiting the vehicle.

(Continued)

WARNING! (Continued)

  • It is dangerous to shift out of PARK or NEUTRAL if the engine speed is higher than idle speed. If your foot is not firmly pressing the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and your foot is firmly pressing the brake pedal.
  • Unintended movement of a vehicle could injure those in or near the vehicle. As with all vehicles, you should never exit a vehicle while the engine is running. Before exiting a vehicle, always come to a complete stop, then apply the parking brake, shift the transmission into PARK, turn the engine OFF, and remove the key fob. When the ignition is in the LOCK/OFF (key removal) position (or, with Keyless Enter-N-Go, when the ignition is in the OFF mode), the transmission is locked in PARK, securing the vehicle against unwanted movement.

(Continued)

WARNING! (Continued)

  • When leaving the vehicle, always make sure the ignition is in the OFF mode, remove the key fob from the vehicle, and lock the vehicle.
  • Never leave children alone in a vehicle, or with access to an unlocked vehicle. Allowing children to be in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Children should be warned not to touch the parking brake, brake pedal or the transmission gear selector.
  • Do not leave the key fob in or near the vehicle (or in a location accessible to children), and do not leave the ignition (in a vehicle equipped with Keyless Enter-N-Go) in the ACC or ON/RUN mode. A child could operate power windows, other controls, or move the vehicle.

CAUTION!

  • Before moving the transmission gear selector out of PARK, you must turn the ignition to the ON/RUN mode, and also press the brake pedal. Otherwise, damage to the gear selector could result.
  • DO NOT race the engine when shifting from PARK or NEUTRAL into another gear range, as this can damage the drivetrain.

The following indicators should be used to ensure that you have properly engaged the transmission into the PARK position:

  • When shifting into PARK, pull the gear selector toward you and move it all the way counterclockwise until it stops.
  • Release the gear selector and make sure it is fully seated in the PARK gate.
  • Look at the transmission gear position display and verify that it indicates the PARK position (P).
  • With brake pedal released, verify that the gear selector will not move out of PARK.

REVERSE (R)

This range is for moving the vehicle backward. Shift into REVERSE only after the vehicle has come to a complete stop.

NEUTRAL (N)

Use this range when the vehicle is standing for prolonged periods with the engine running. The engine may be started in this range. Apply the parking brake and shift the transmission into PARK if you must exit the vehicle.

WARNING!

Do not coast in NEUTRAL and never turn off the ignition to coast down a hill. These are unsafe practices that limit your response to changing traffic or road conditions. You might lose control of the vehicle and have a collision.

CAUTION!

Towing the vehicle, coasting, or driving for any other reason with the transmission in NEUTRAL can cause severe transmission damage.

For Towing A Disabled Vehicle ➤ page 350.

For Recreational Towing ➤ page 215.

DRIVE (D)

This range should be used for most city and highway driving. It provides the smoothest upshifts and downshifts, and the best fuel economy. The transmission automatically upshifts through all forward gears.

When frequent transmission shifting occurs (such as when operating the vehicle under heavy loading conditions, in hilly terrain, traveling into strong head winds, or while towing a heavy trailer), select TOW/HAUL mode or use the Electronic Range Select (ERS) shift control to select a lower gear range → page 150. Under these conditions, using a lower gear range will improve performance and extend transmission life by reducing excessive shifting and heat buildup.

If the transmission temperature exceeds normal operating limits, the powertrain controller will modify the transmission shift schedule and expand the range of torque converter clutch engagement. This is done to prevent transmission damage due to overheating.

If the transmission becomes extremely hot or is in danger of overheating, the “Transmission Temperature Warning Light” may illuminate and the transmission may operate differently until the transmission cools down.

NOTE:

Use caution when operating a heavily loaded vehicle at low speeds (such as towing a trailer up a steep grade, or in stop-and-go traffic) during hot weather. In these conditions, torque converter slip can impose a significant additional heat load on the cooling system. Downshifting the transmission to the lowest possible gear (when climbing a grade), or shifting to NEUTRAL (when stopped in heavy traffic) can help to reduce this excess heat generation.

During cold temperatures, transmission operation may be modified depending on engine and transmission temperature as well as vehicle speed. This feature improves warm-up time of the engine and transmission to achieve maximum efficiency. Engagement of the torque converter clutch is inhibited until the transmission fluid is warm ➕ page 151.

On trucks with AS66RC or AS69RC transmission, FIFTH and SIXTH gears may be inhibited briefly on cold starts below 41°F (5°C), and during very cold temperatures (-4°F [-20°C] or below), operation may briefly be limited to third gear only. During this condition, the ability of the vehicle to accelerate under heavily loaded conditions may be reduced. In all cases, normal operation will resume once the transmission temperature has risen to a suitable level.

Transmission Limp Home Mode

Transmission function is monitored electronically for abnormal conditions. If a condition is detected that could result in transmission damage, Transmission Limp Home Mode is activated. In this mode, the transmission remains in THIRD gear regardless of which forward gear is selected. If an AS66RC/AS69RC equipped truck enters Limp Home Mode at highway speeds, it will initially engage FIFTH gear, until the vehicle slows to a speed where THIRD gear can be engaged. PARK, REVERSE, and NEUTRAL will continue to operate. The Malfunction Indicator Light (MIL) may be illuminated. Limp Home Mode allows the vehicle to be driven to an authorized dealer for service without damaging the transmission.

In the event of a momentary problem, the transmission can be reset to regain all forward gears by performing the following steps:

  1. Stop the vehicle.
  2. Shift the transmission into PARK.
  3. Turn the ignition to the OFF position.
  4. Wait approximately 10 seconds.
  5. Restart the engine.
  6. Shift into the desired gear range. If the problem is no longer detected, the transmission will return to normal operation.

NOTE:

Even if the transmission can be reset, we recommend that you visit an authorized dealer at your earliest possible convenience. An authorized dealer has diagnostic equipment to assess the condition of your transmission.

If the transmission cannot be reset, authorized dealer service is required.

Electronic Range Select (ERS) Operation

The ERS shift control allows the driver to limit the highest available gear when the transmission is in DRIVE. For example, if you set the transmission gear limit to FOURTH gear, the transmission will not shift above FOURTH gear, but will shift through the lower gears normally.

You can switch between DRIVE and ERS mode at any vehicle speed. When the gear selector is in the DRIVE position, the transmission will operate automatically, shifting between all available gears. Tapping the ERS (-) switch will activate ERS mode, display the current gear in the instrument cluster, and set that gear as the top available gear. Once in ERS mode, tapping (-) or (+) will change the top available gear.

RAM 4500 Chassis Cab (2021) - Electronic Range Select (ERS) Operation - 1

text_image 车灯提示灯 ① ② A0606000076US

Electronic Range Select

1 - GEAR + Switch
2 - GEAR - Switch

To exit ERS mode, simply push and hold the ERS (+) switch until the gear limit display disappears from the instrument cluster.

WARNING!

Do not downshift for additional engine braking on a slippery surface. The drive wheels could lose their grip and the vehicle could skid, causing a collision or personal injury.

NOTE:

To select the proper gear position for maximum deceleration (engine braking), simply push and hold the ERS (-) switch. The transmission will shift to the range from which the vehicle can best be slowed down.

CAUTION!

When using ERS for engine braking while descending steep grades, be careful not to overspeed the engine. Apply the brakes as needed to prevent engine overspeed.

Overdrive Operation

The automatic transmission includes an electronically controlled Overdrive (FIFTH and SIXTH gears). The transmission will automatically shift into Overdrive if the following conditions are present:

  • The gear selector is in the DRIVE position.
  • The transmission fluid has reached an adequate temperature.
  • The engine coolant has reached an adequate temperature.
    ● Vehicle speed is sufficiently high.

STARTING AND OPERATING 151

  • The TOW/HAUL switch has not been activated.
    ● The driver is not heavily pressing the accelerator.

Torque Converter Clutch

A feature designed to improve fuel economy has been included in the automatic transmission on your vehicle. A clutch within the torque converter engages automatically at calibrated speeds. This may result in a slightly different feeling or response during normal operation in the upper gears. When the vehicle speed drops or during some accelerations, the clutch automatically disengages.

NOTE:

- The torque converter clutch will not engage, until the transmission fluid and engine coolant are warm (usually after 1 to 3 miles (2 to 5 km) of driving). Because engine speed is higher when the torque converter clutch is not engaged, it may seem as if the transmission is not shifting properly when cold; This is normal. Using the Electronic Range Select (ERS) shift control, when the transmission is sufficiently warm, will demonstrate that the transmission is able to shift into and out of Overdrive.

152 STARTING AND OPERATING

- If the vehicle has not been driven for several days, the first few seconds of operation after shifting the transmission into gear may seem sluggish. This is due to the fluid partially draining from the torque converter into the transmission. This condition is normal and will not cause damage to the transmission. The torque converter will refill within five seconds after starting the engine.

When To Use TOW/HAUL Mode

When driving in hilly areas, towing a trailer, carrying a heavy load, etc., and frequent transmission shifting occurs, push the TOW/HAUL switch to activate TOW/HAUL mode. This will improve performance and reduce the potential for transmission overheating or failure due to excessive shifting. When operating in TOW/HAUL mode, transmission upshifts are delayed, and the transmission will automatically downshift (for engine braking) when the throttle is closed and/or during steady braking maneuvers.

RAM 4500 Chassis Cab (2021) - When To Use TOW/HAUL Mode - 1

text_image AUST TRAULIN HEIGHT TOW/ HAUL AUX 1 AUX 2 AUX 3 AUX 4 A0606000077US

TOW/HAUL Switch

The "TOW/HAUL Indicator Light" will illuminate in the instrument cluster to indicate that TOW/HAUL mode has been activated. Pushing the switch a second time restores normal operation. Normal operation is always the default at engine start-up. If TOW/HAUL mode is desired, the switch must be pushed each time the engine is started.

WARNING!

Do not use the TOW/HAUL feature when driving in icy or slippery conditions. The increased engine braking can cause the rear wheels to slide, and the vehicle to swing around with the possible loss of vehicle control, which may cause an accident possibly resulting in personal injury or death.

AUXILIARY SWITCHES — IF EQUIPPED

There can be up to six auxiliary switches located in the lower switch bank of the instrument panel which can be used to power various electronic devices and Power Take Off (PTO). If equipped, it will take the place of the sixth auxiliary switch. Connections to the switches are found under the hood in the connectors attached to the auxiliary Power Distribution Center.

You have the ability to configure the functionality of the auxiliary switches via the instrument cluster display. All switches can now be configured for setting the switch type operation to latching or momentary, power source of either battery or ignition, and ability to hold last state across key cycles.

NOTE:

Holding last state conditions are met when switch type is set to latching and power source is set to ignition.

For further information on using the auxiliary switches, please refer to the Ram Body Builders Guide by accessinghttps://www.ramtrucks.com/ram-commercial/body-builders-guide.html and choosing the appropriate links.

Four-wheel drive trucks are equipped with either a manually shifted transfer case or an electronically shifted transfer case.

ELECTRONICALLY SHIFTED TRANSFER CASE (EIGHT SPEED TRANSMISSION) — IF EQUIPPED

This is an electronically shifted transfer case and is operated by the 4WD Control Switch (Transfer Case Switch), which is located on the instrument panel.

RAM 4500 Chassis Cab (2021) - ELECTRONICALLY SHIFTED TRANSFER CASE (EIGHT SPEED TRANSMISSION) — IF EQUIPPED - 1

text_image PRND OFF HIGH LOW A0612000093US

Four-Position Transfer Case

This electronically shifted transfer case provides four mode positions:

  • Two-Wheel Drive High Range (2WD)
    • Four-Wheel Drive High Range (4WD High)
    • Four-Wheel Drive Low Range (4WD Low)
    • N (Neutral)

For additional information on the appropriate use of each transfer case mode position, see the information below:

2WD

Two-Wheel Drive High Range — This range is for normal street and highway driving on dry, hard surfaced roads.

4WD High

Four-Wheel Drive High Range — This range provides torque to the front driveshaft (engages four-wheel drive) which allows front and rear wheels to spin at the same speed. This provides additional traction for loose, slippery road surfaces only.

4WD Low

Four-Wheel Drive Low Range — This range provides low speed four-wheel drive. It maximizes torque (increased torque over 4WD High) to the front driveshaft, allowing front and rear wheels to rotate at the same speed. This range provides additional traction and maximum pulling power for loose, slippery road surfaces only. Do not exceed 25 mph (40 km/h) in this range.

N (Neutral)

N (Neutral) — This range disengages both the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle ▼ page 214.

WARNING!

- You or others could be injured or killed if you leave the vehicle unattended with the transfer case in the N (NEUTRAL) position without first fully engaging the parking brake. The transfer case N (NEUTRAL) position disengages both the front and rear drive shaft from the powertrain, and will allow the vehicle to roll, even if the transmission is in PARK. The parking brake should always be applied when the driver is not in the vehicle.

(Continued)

WARNING! (Continued)

- The transmission may not engage PARK if the vehicle is moving. Always bring the vehicle to a complete stop before shifting to PARK, and verify that the transmission gear position indicator solidly indicates PARK (P) without blinking. Ensure that the vehicle is completely stopped, and the PARK position is properly indicated, before exiting the vehicle.

This electronically shifted transfer case is designed to be driven in the two-wheel drive position (2WD) for normal street and highway conditions on dry hard surfaced roads. Driving the vehicle in two-wheel drive will have greater fuel economy benefits as the front axle is not engaged in two-wheel drive.

When additional traction is required, the transfer case 4WD High and 4WD Low positions can be used to maximize torque to the front driveshaft, forcing the front and rear wheels to rotate at the same speed. This is accomplished by pushing the desired position on the four-wheel drive control switch.

For specific shifting instructions ↩ page 159.

The 4WD High and 4WD Low positions are designed for loose, slippery road surfaces only. Driving in the 4WD High and 4WD Low positions on dry, hard surfaced roads may cause increased tire wear and damage to the driveline components.

NOTE:

The transfer case Neutral button is located in the center of the four-wheel drive Control Switch and is pushed by using a ballpoint pen or similar object. The transfer case Neutral position is to be used for recreational towing only ↩ page 214.

Transfer Case Position Indicator Lights

The Transfer Case Position Indicator Lights (4WD High and 4WD Low) are located in the instrument cluster and indicate the current and desired transfer case selection. When you select a different transfer case position, the indicator lights will do the following:

If All Of The Following Shift Conditions Are Met:

  1. The current position indicator light will turn off.
  2. The selected position indicator light will flash until the transfer case completes the shift.

  3. When the shift is complete, the indicator light for the selected position will stop flashing and remain on.

If One Or More Of The Following Shift Conditions Are Not Met:

  1. The indicator light for the current position will remain on.
  2. The newly selected position indicator light will continue to flash.
  3. The transfer case will not shift.

NOTE:

Before retrying a selection, make certain that all the necessary requirements for selecting a new transfer case position have been met. To retry the selection, push the current position, wait five seconds, and retry selection ➤ page 159.

The “SVC 4WD Warning Light” monitors the electronically shifted four-wheel drive system. If this light remains on after engine start up or illuminates during driving, it means that the four-wheel drive system is not functioning properly and that service is required.

WARNING!

Always engage the parking brake when powering down the vehicle if the "SVC 4WD Warning Light" is illuminated. Not engaging the parking brake may allow the vehicle to roll which may cause personal injury or death.

NOTE:

Do not attempt to make a shift while only the front or rear wheels are spinning. This could cause damage to driveline components.

When operating your vehicle in 4WD Low, the engine speed is approximately three times that of the two-wheel drive or 4WD High positions at a given road speed. Take care not to overspeed the engine and do not exceed 25 mph (40 km/h).

Proper operation of four-wheel drive vehicles depends on tires of equal size, type and circumference on each wheel. Any difference in tire size can cause damage to the drivetrain.

Because four-wheel drive provides improved traction, there is a tendency to exceed safe turning and stopping speeds. Do not go faster than road conditions permit.

Shifting Procedure

NOTE:

  • If any of the requirements to select a new transfer case position have not been met, the transfer case will not shift. The position indicator light for the previous position will remain on and the newly selected position indicator light will continue to flash until all the requirements for the selected position have been met.
  • If all the requirements to select a new transfer case position have been met, the current position indicator light will turn off, the selected position indicator light will flash until the transfer case completes the shift. When the shift is complete, the position indicator light for the selected position will stop flashing and remain on.

2WD To 4WD HIGH

Push the desired position on the four-wheel drive control switch to shift the transfer case. Shifts between two-wheel drive and 4WD High can be done with the vehicle stopped or in motion. With the vehicle in motion, the transfer case will engage/disengage faster if you momentarily release the accelerator pedal after turning the control switch. If the vehicle is stopped, the ignition switch must be in the ON position with the engine either running or off. This shift cannot be completed if the ignition switch is in the ACC position.

NOTE:

The four-wheel drive system will not allow shifts between 2WD/4WD High if the front and/or rear wheels are spinning (no traction). In this situation, the selected position indicator light will flash and the original position indicator light will remain on. At this time, reduce speed and stop spinning the wheels to complete the shift.

2WD Or 4WD HIGH To 4WD LOW

NOTE:

When shifting into or out of 4WD Low some gear noise may be heard. This noise is normal and is not detrimental to the vehicle or occupants.

Shifting can be performed with the vehicle rolling 2 to 3 mph (3 to 5 km/h) or completely stopped. You can use either of the following procedures:

Preferred Procedure

  1. With the engine running, slow the vehicle to 2 to 3 mph (3 to 5 km/h).
  2. Shift the transmission into NEUTRAL.
  3. While still rolling, push the desired position on the transfer case control switch.
  4. After the desired position indicator light is on (not flashing), shift the transmission back into gear.

Alternate Procedure

  1. Bring the vehicle to a complete stop.
  2. With the ignition switch in the ON position and the engine running, shift the transmission into NEUTRAL.
  3. Push the desired position on the transfer case control switch.
  4. After the desired position indicator light is on (not flashing), shift the transmission back into gear.

NOTE:

- If Steps 1 or 2 of either the Preferred or Alternate Procedure are not satisfied prior to attempting the shift, then the desired position indicator light will flash continuously while the original position indicator light is on, until all requirements have been met.

- The ignition switch must be in the ON position for a shift to take place and for the position indicator lights to be operable. If the ignition switch is not in the ON position, the shift will not take place and no position indicator lights will be on or flashing.

ELECTRONICALLY SHIFTED TRANSFER CASE (SIX SPEED TRANSMISSION) — IF EQUIPPED

The electronically shifted transfer case is operated by the four-wheel drive Control Switch (Transfer Case Switch), which is located on the instrument panel.

RAM 4500 Chassis Cab (2021) - ELECTRONICALLY SHIFTED TRANSFER CASE (SIX SPEED TRANSMISSION) — IF EQUIPPED - 1

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Four-Position/On-Demand Transfer Case

This electronically shifted transfer case provides four mode positions:

  • Two-Wheel Drive High Range (2WD)
  • Four-Wheel Drive High Range (4WD HIGH)
    ● Four-Wheel Drive Low Range (4WD LOW)
    • N (Neutral)

For additional information on the appropriate use of each transfer case mode position, see the information below:

2WD

Two-Wheel Drive High Range — This range is for normal street and highway driving on dry, hard surfaced roads.

4WD HIGH

Four-Wheel Drive High Range — This range maximizes torque to the front driveshaft, forcing the front and rear wheels to rotate at the same speed. This range provides additional traction for loose, slippery road surfaces only.

4WD LOW

Four-Wheel Drive Low Range — This range provides low speed four-wheel drive. It maximizes torque to the front driveshaft, forcing the front and rear wheels to rotate at the same speed. This range provides additional traction and maximum pulling power for loose, slippery road surfaces only. Do not exceed 25 mph (40 km/h).

N (Neutral)

N (Neutral) — This range disengages both the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle ↩ page 214.

WARNING!

You or others could be injured or killed if you leave the vehicle unattended with the transfer case in the N (NEUTRAL) position without first fully engaging the parking brake. The transfer case N (NEUTRAL) position disengages both the front and rear drive shafts from the powertrain and will allow the vehicle to roll, even if the transmission is in PARK. The parking brake should always be applied when the driver is not in the vehicle.

This electronically shifted transfer case is designed to be driven in the two-wheel drive position (2WD) for normal street and highway conditions on dry, hard surfaced roads.

When additional traction is required, the transfer case 4WD High and 4WD Low positions can be used to maximize torque to the front driveshaft, forcing the front and rear wheels to rotate at the same speed. This is accomplished by rotating the four-wheel drive Control Switch to the desired position.

For specific shifting instructions ↩ page 159.

The 4WD High and 4WD Low positions are designed for loose, slippery road surfaces only. Driving in the 4WD High and 4WD Low positions on dry hard surfaced roads may cause increased tire wear and damage to the driveline components.

NOTE:

The transfer case NEUTRAL button is located on the lower left hand corner of the four-wheel drive Control Switch. The transfer case NEUTRAL position is to be used for recreational towing only ➞ page 214.

Transfer Case Position Indicator Lights

The Transfer Case Position Indicator Lights (four-wheel drive and 4WD Low) are located in the instrument cluster and indicate the current and desired transfer case selection. When you select a different transfer case position, the indicator lights will do the following:

If All Of The Following Shift Conditions Are Met:

  1. The current position indicator light will turn off.
  2. The selected position indicator light will flash until the transfer case completes the shift.
  3. When the shift is complete, the indicator light for the selected position will stop flashing and remain on.

If One Or More Of The Following Shift Conditions Are Not Met:

  1. The indicator light for the current position will remain on.
  2. The newly selected position indicator light will continue to flash.
  3. The transfer case will not shift.

NOTE:

Before retrying a selection, make certain that all the necessary requirements for selecting a new transfer case position have been met. To retry the selection, turn the control switch back to the current position, wait five seconds, and retry selection ➤ page 159.

The “SVC 4WD Warning Light” monitors the electronically shifted four-wheel drive system. If this light remains on after engine start up or illuminates during driving, it means that the four-wheel drive system is not functioning properly and that service is required.

WARNING!

Always engage the parking brake when powering down the vehicle if the "SVC 4WD Warning Light" is illuminated. Not engaging the parking brake may allow the vehicle to roll, which may cause personal injury.

NOTE:

Do not attempt to make a shift while only the front or rear wheels are spinning, as this can cause damage to driveline components.

When operating your vehicle in 4WD Low, the engine speed is approximately three times that of the two-wheel drive or 4WD High positions at a given road speed. Take care not to overspeed the engine and do not exceed 25 mph (40 km/h).

Proper operation of four-wheel drive vehicles depends on tires of equal size, type and circumference on each wheel. Any difference in tire size can cause damage to the drivetrain.

Because four-wheel drive provides improved traction, there is a tendency to exceed safe turning and stopping speeds. Do not go faster than road conditions permit.

Shifting Procedure

NOTE:

  • If any of the requirements to select a new transfer case position have not been met, the transfer case will not shift. The position indicator light for the previous position will remain ON and the newly selected position indicator light will continue to flash until all the requirements for the selected position have been met. To retry a shift: return the control switch back to the original position, make certain all shift requirements have been met, wait five seconds and try the shift again.
  • If all the requirements to select a new transfer case position have been met, the current position indicator light will turn OFF, the selected position indicator light will flash until the transfer case completes the shift. When the shift is complete, the position indicator light for the selected position will stop flashing and remain ON.

2WD To 4WD HIGH

Push the desired position on the four-wheel drive control switch to shift the transfer case. Shifts between two-wheel drive and 4WD High can be done with the vehicle stopped or in motion. With the vehicle in motion, the transfer case will engage/disengage faster if you momentarily release the accelerator pedal after turning the control switch. If the vehicle is stopped, the ignition switch must be in the ON position with the engine either running or off. This shift cannot be completed if the ignition switch is in the ACC position.

NOTE:

The four-wheel drive system will not allow shifts between 2WD/4WD High if the front and/or rear wheels are spinning (no traction). In this situation, the selected position indicator light will flash and the original position indicator light will remain on. At this time, reduce speed and stop spinning the wheels to complete the shift.

2WD Or 4WD HIGH To 4WD LOW

NOTE:

When shifting into or out of 4WD Low some gear noise may be heard. This noise is normal and is not detrimental to the vehicle or occupants.

Shifting can be performed with the vehicle rolling 2 to 3 mph (3 to 5 km/h) or completely stopped. You can use either of the following procedures:

Preferred Procedure

  1. With the engine running, slow the vehicle to 2 to 3 mph (3 to 5 km/h).
  2. Shift the transmission into NEUTRAL.
  3. While still rolling, push the desired position on the transfer case control switch.
  4. After the desired position indicator light is on (not flashing), shift the transmission back into gear.

Alternate Procedure

  1. Bring the vehicle to a complete stop.
  2. With the ignition switch in the ON position and the engine running, shift the transmission into NEUTRAL.
  3. Push the desired position on the transfer case control switch.
  4. After the desired position indicator light is on (not flashing), shift the transmission back into gear.

NOTE:

  • If Steps 1 or 2 of either the Preferred or Alternate Procedure are not satisfied prior to attempting the shift, then the desired position indicator light will flash continuously while the original position indicator light is on, until all requirements have been met.
  • The ignition switch must be in the ON position for a shift to take place and for the position indicator lights to be operable. If the ignition switch is not in the ON position, the shift will not take place and no position indicator lights will be on or flashing.

MANUALLY SHIFTED TRANSFER CASE — IF EQUIPPED

The transfer case provides four mode positions:

  • Two-Wheel Drive High Range (2H)
    ● Four-Wheel Drive Lock High Range (4H)
    • N (Neutral)
    ● Four-Wheel Drive Low Range (4L)

For additional information on the appropriate use of each transfer case mode position, see the information below:

2H

Two-Wheel Drive High Range — This range is for normal street and highway driving on dry, hard surfaced roads.

4H

Four-Wheel Drive Lock High Range — This range locks the front and rear driveshafts together forcing the front and rear wheels to rotate at the same speed. Additional traction for loose, slippery road surfaces only.

N (Neutral)

N (Neutral) — This range disengages both the front and rear driveshafts from the powertrain. To be used for flat towing behind another vehicle ↩ page 214.

4L

Four-Wheel Drive Low Range — This range locks the front and rear driveshafts together forcing the front and rear wheels to rotate at the same speed. Additional traction and maximum pulling power for loose, slippery road surfaces only. Do not exceed 25 mph (40 km/h).

This transfer case is intended to be driven in the 2H position for normal street and highway conditions such as dry, hard surfaced roads.

When additional traction is required, the 4H and 4L positions can be used to lock the front and rear driveshafts together and force the front and rear wheels to rotate at the same speed. This is accomplished by simply moving the gear selector to the desired positions once the appropriate speed and gear requirements are met ➤ page 159.

The 4H and 4L positions are intended for loose, slippery road surfaces only. Driving in the 4H and 4L positions on dry, hard surfaced roads may cause increased tire wear and damage to the driveline components.

The “Transfer Case Position Indicator Light” in the instrument cluster will alert the driver that the vehicle is in four-wheel drive and that the front and rear driveshafts are locked together. This light will illuminate when the transfer case is shifted into either the 4H or 4L position. There is no light for the 2H or N (Neutral) positions on some models.

When operating your vehicle in 4L, the engine speed is approximately three times that of the 4H or 4L positions at a given road speed. Take care not to overspeed the engine and do not exceed 25 mph (40 km/h).

Proper operation of four-wheel drive vehicles depends on tires of equal size, type and circumference on each wheel. Any difference will adversely affect shifting and can cause damage to the drivetrain.

NOTE:

Do not attempt to make a shift while only the front or rear wheels are spinning, as this can cause damage to driveline components.

Because four-wheel drive provides improved traction, there is a tendency to exceed safe turning and stopping speeds. Do not go faster than road conditions permit.

NOTE:

Delayed shifts out of four-wheel drive may be experienced due to uneven tire wear, low or uneven tire pressures, excessive vehicle loading, or cold temperatures.

WARNING!

You or others could be injured or killed if you leave the vehicle unattended with the transfer case in the N (NEUTRAL) position without first fully engaging the parking brake. The transfer case N (NEUTRAL) position disengages both the front and rear drive shafts from the powertrain and will allow the vehicle to roll, even if the transmission is in PARK. The parking brake should always be applied when the driver is not in the vehicle.

Shifting Procedure — Manually Shifted Transfer Case

2H To 4H

Shifting between 2H and 4H can be made with the vehicle stopped or in motion. If the vehicle is in motion, shifts can be made up to 55 mph (88 km/h). With the vehicle in motion, the transfer case will engage/disengage faster if you momentarily release the accelerator pedal after completing the shift. Apply a constant force when shifting the transfer case lever.

2WD High Or 4WD High To 4WD Low

NOTE:

When shifting into or out of 4L some gear noise may be heard. This noise is normal and is not detrimental to the vehicle or occupants.

With the vehicle rolling at 2 to 3 mph (3 to 5 km/h), shift the transmission into NEUTRAL. While the vehicle is coasting at 2 to 3 mph (3 to 5 km/h), shift the transfer case lever firmly to the desired position. Do not pause in transfer case Neutral.

NOTE:

  • Pausing in transfer case N (Neutral) in vehicles equipped with an automatic transmission may require shutting the engine OFF to avoid gear clash while completing the shift. If difficulty occurs, shift the transmission into Neutral, hold your foot on the brake, and turn the engine OFF. Complete the range shift to the desired mode.
  • Shifting into or out of 4L is possible with the vehicle completely stopped, however difficulty may occur due to the mating clutch teeth not being properly aligned. Several attempts may be required for clutch teeth alignment and shift completion to occur. The preferred method is with the vehicle rolling 2 to 3 mph (3 to 5 km/h). Avoid attempting to engage or disengage 4L with the vehicle moving faster than 2 to 3 mph (3 to 5 km/h).
  • Do not attempt to shift into or out of 4L while the transmission is in gear.

Transfer Case Position Indicator Light

The “Transfer Case Position Indicator Light” in the instrument cluster is used to alert the driver that the front axle is fully engaged and all four wheels are driving.

LIMITED-SLIP DIFFERENTIAL

The limited-slip differential provides additional traction on snow, ice, mud, sand and gravel, particularly when there is a difference between the traction characteristics of the surface under the right and left rear wheels. During normal driving and cornering, the limited-slip unit performs similarly to a conventional differential. On slippery surfaces, however, the differential delivers more of the driving effort to the rear wheel having the better traction.

The limited-slip differential is especially helpful during slippery driving conditions. With both rear wheels on a slippery surface, a slight application of the accelerator will supply maximum traction.

When starting with only one rear wheel on an excessively slippery surface, slight momentary application of the parking brake may be necessary to gain maximum traction.

WARNING!

On vehicles equipped with a limited-slip differential never run the engine with one rear wheel off the ground since the vehicle may drive through the rear wheel remaining on the ground. You could lose control of the vehicle.

Care should be taken to avoid sudden accelerations when both rear wheels are on a slippery surface. This could cause both rear wheels to spin, and allow the vehicle to slide sideways on the crowned surface of a road or in a turn.

This vehicle when equipped with PTO Prep and the AS66RC/AS69RC automatic six-speed, will allow for an aftermarket upfit with a transmission driven PTO (power take off). The customer will have the ability to operate the PTO in either a "stationary", "mobile" or "remote" mode. The vehicles will be factory set to the "stationary" mode. To select a different mode, or to change any other PTO setting, you will need to enter the commercial vehicle menu on the instrument cluster screen. Details of the PTO selection modes and further PTO information is available at the Ram Truck Bodybuilders web site: https://www.ramtrucks.com/ram-commercial/body-builders-guide.html

POWER STEERING

HYDRAULIC POWER STEERING

The standard power steering system will give you good vehicle response and increased ease of maneuverability in tight spaces. The system will provide mechanical steering capability if power assist is lost.

If for some reason the power assist is interrupted, it will still be possible to steer your vehicle. Under these conditions, you will observe a substantial increase in steering effort, especially at very low vehicle speeds and during parking maneuvers.

NOTE:

  • Increased noise levels at the end of the steering wheel travel are considered normal and do not indicate that there is a problem with the power steering system.
  • Upon initial start-up in cold weather, the power steering pump may make noise for a short amount of time. This is due to the cold, thick fluid in the steering system. This noise should be considered normal, and it does not in any way damage the steering system.

CAUTION!

Prolonged operation of the steering system at the end of the steering wheel travel will increase the steering fluid temperature and it should be avoided when possible. Damage to the power steering pump may occur.

Power Steering Fluid Check

Checking the power steering fluid level at a defined service interval is not required. The fluid should only be checked if a leak is suspected, abnormal noises are apparent, and/or the system is not functioning as anticipated. Check fluid level when the engine is cold and off. Coordinate inspection efforts through an authorized dealer.

WARNING!

Fluid level should be checked on a level surface and with the engine off to prevent injury from moving parts and to ensure accurate fluid level reading. Do not overfill. Use only manufacturer's recommended power steering fluid.

CAUTION!

Do not use chemical flushes in your power steering system as the chemicals can damage your power steering components. Such damage is not covered by the New Vehicle Limited Warranty.

If necessary, add fluid to restore to the proper indicated level. With a clean cloth, wipe any spilled fluid from all surfaces ▶ page 444.

CRUISE CONTROL SYSTEMS — IF EQUIPPED

Your vehicle may be equipped with the Cruise Control system, or the Adaptive Cruise Control (ACC) system:

  • Cruise Control for cruising at a constant preset speed.
  • Adaptive Cruise Control (ACC) for maintaining a set distance between you and the vehicle ahead using Fixed Speed Cruise Control to automatically adjust the preset speed.

NOTE:

In vehicles equipped with ACC, if an ACC distance is not set, Fixed Speed Cruise Control

will not detect vehicles directly ahead of you. Always be aware of the mode selected.

CRUISE CONTROL — IF EQUIPPED

When engaged, the Cruise Control takes over accelerator operations at speeds greater than 20 mph (32 km/h), or 25 mph (40 km/h), depending on the powertrain equipped in the vehicle.

The Cruise Control buttons are located on the right side of the steering wheel.

RAM 4500 Chassis Cab (2021) - CRUISE CONTROL — IF EQUIPPED - 1

text_image 1 2 CANCEL RES + SET 3 4 A0626000048US

Cruise Control Buttons

1 - On/Off Button
2 - CANCEL
3 - RES (+)
4 - SET (-)

NOTE:

In order to ensure proper operation, the Cruise Control system has been designed to shut down if multiple speed control functions are operated at the same time. If this occurs, the Cruise Control system can be reactivated by pushing the Cruise Control on/off button and resetting the desired vehicle set speed.

To Activate

Push the on/off button to activate the Cruise Control. The cruise indicator light in the instrument cluster display will illuminate. To turn the system off, push the on/off button a second time. The cruise indicator light will turn off. The system should be turned off when not in use.

WARNING!

Leaving the Cruise Control system on when not in use is dangerous. You could accidentally set the system or cause it to go faster than you want. You could lose control and have an accident. Always leave the system off when you are not using it.

To Set A Desired Speed

Turn the Cruise Control on. When the vehicle has reached the desired speed, push the SET (-) button and release. Release the accelerator and the vehicle will operate at the selected speed. Once a speed has been set, a message "CRUISE CONTROL SET TO MPH (km/h)" will appear indicating the set speed. A cruise indicator lamp, along with set speed will also appear and stay on in the instrument cluster display when the speed is set.

NOTE:

The vehicle should be traveling at a steady speed and on level ground before pushing the SET (-) button.

To Vary The Speed Setting

To Increase Or Decrease The Set Speed

When Cruise Control is set, you can increase the speed by pushing the RES (+) button, or decrease speed by pushing the SET (-) button. U.S. Speed (mph)

- Pushing the RES (+) button, or SET (-) button once will result in a 1 mph speed adjustment. Each subsequent tap of the button results in an adjustment of 1 mph.

- If the button is continually pushed, the set speed will continue to adjust until the button is released, then the new set speed will be established.

Metric Speed (km/h)

  • Pushing the RES (+), or SET (-) button once will result in a 1 km/h speed adjustment. Each subsequent tap of the button results in an adjustment of 1 km/h.
  • If the button is continually pushed, the set speed will continue to adjust until the button is released, then the new set speed will be established.

To Accelerate For Passing

While the Cruise Controls is set, press the accelerator as you would normally. When the pedal is released, the vehicle will return to the set speed.

Using Cruise Control On Hills

The transmission may downshift on hills to maintain the vehicle set speed.

The Cruise Control system maintains speed up and down hills. A slight speed change on moderate hills is normal. On steep hills, a

greater speed loss or gain may occur so it may be preferable to drive without Cruise Control.

WARNING!

Cruise Control can be dangerous where the system cannot maintain a constant speed. Your vehicle could go too fast for the conditions, and you could lose control and have an accident. Do not use Cruise Control in heavy traffic or on roads that are winding, icy, snow-covered or slippery.

To Resume Speed

To resume a previously set speed, push the RES (+) button and release. Resume can be used at any speed above 20 mph (32 km/h).

To Deactivate

A soft tap on the brake pedal, pushing the CANCEL button, or normal brake pressure while slowing the vehicle will deactivate the Cruise Control without erasing the set speed from memory.

The following conditions will also deactivate the Cruise Control without erasing the set speed from memory:

● Vehicle parking brake is applied
- Stability event occurs
● Gear selector is moved out of DRIVE
• Engine overspeed occurs

Pushing the on/off button, or placing the ignition in the OFF position, erases the set speed from memory.

ADAPTIVE CRUISE CONTROL (ACC)—IF EQUIPPED

Adaptive Cruise Control (ACC) increases the driving convenience provided by Cruise Control while traveling on highways and major roadways. However, it is not a safety system and not designed to prevent collisions. The Cruise Control function performs differently if your vehicle is not equipped with ACC ↩ page 164.

ACC will allow you to keep Cruise Control engaged in light to moderate traffic conditions without the constant need to reset your speed. ACC utilizes a radar sensor and a forward facing camera designed to detect a vehicle directly ahead of you to maintain a set speed.

NOTE:

  • If the ACC sensor detects a vehicle ahead, ACC will apply limited braking or acceleration (not to exceed the original set speed) automatically to maintain a preset following distance, while matching the speed of the vehicle ahead.
  • Any chassis/suspension or tire size modifications to the vehicle will affect the performance of the Adaptive Cruise Control and Forward Collision Warning system.
  • Fixed Speed Cruise Control alone (an ACC distance not set) will not detect vehicles directly ahead of you. Always be aware of the mode selected.

WARNING!

  • Adaptive Cruise Control (ACC) is a convenience system. It is not a substitute for active driver involvement. It is always the driver's responsibility to be attentive of road, traffic, and weather conditions, vehicle speed, distance to the vehicle ahead; and, most importantly, brake operation to ensure safe operation of the vehicle under all road conditions. Your complete attention is always required while driving to maintain safe control of your vehicle. Failure to follow these warnings can result in a collision and death or serious personal injury.
  • The ACC system:

- Does not react to pedestrians, oncoming vehicles, and stationary objects (e.g., a stopped vehicle in a traffic jam or a disabled vehicle).

- Cannot take street, traffic, and weather conditions into account, and may be limited upon adverse sight distance conditions.

(Continued)

WARNING! (Continued)

  • Does not always fully recognize complex driving conditions, which can result in wrong or missing distance warnings.
  • Will bring the vehicle to a complete stop while following a target vehicle and hold the vehicle for approximately two seconds in the stop position. At this point, there will be an "ACC may cancel soon" chime and warning to the driver. When ACC is cancelled, the system will release the brakes and the driver must take over braking. The system can be resumed when the target vehicle drives off by releasing the brake and pushing the resume button on the steering wheel.

(Continued)

WARNING! (Continued)

You should switch off the ACC system:

  • When driving in fog, heavy rain, heavy snow, sleet, heavy traffic, and complex driving situations (i.e., in highway construction zones).
  • When entering a turn lane or highway off ramp; when driving on roads that are winding, icy, snow-covered, slippery, or have steep uphill or downhill slopes.
  • When towing a trailer up or down steep slopes.
  • When circumstances do not allow safe driving at a constant speed.

Adaptive Cruise Control (ACC) Operation The buttons on the right side of the steering wheel operate the ACC system.

RAM 4500 Chassis Cab (2021) - WARNING! (Continued) - 1

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Adaptive Cruise Control Buttons

1 - Adaptive Cruise Control On/Off Button
2 - Fixed Speed Cruise Control On/Off Button
3-CANCEL
4 - Distance Button
5 - RES (+)
6 - SET (-)

Adaptive Cruise Control (ACC) Menu

The instrument cluster display will show the current ACC system settings. The information it displays depends on ACC system status.

Push the ACC on/off button until one of the following appears in the instrument cluster display:

Adaptive Cruise Control Off

When ACC is deactivated, the display will read "Adaptive Cruise Control Off."

Adaptive Cruise Control Ready

When ACC is activated, but the vehicle speed setting has not been selected, the display will read "Adaptive Cruise Control Ready."

Adaptive Cruise Control Set

When the RES (+) or the SET(-) button is pushed, the display will read "ACC SET."

When ACC is set, the set speed will show in the instrument cluster display.

The ACC screen may display once again if any of the following ACC activity occurs:

  • System Cancel
  • Driver Override

  • System Off

  • ACC Proximity Warning
  • ACC Unavailable Warning

The instrument cluster display will return to the last display selected after five seconds of no ACC display activity.

Activating Adaptive Cruise Control (ACC)

The minimum set speed for the ACC system is 20 mph (32 km/h).

When the system is turned on and in the ready state, the instrument cluster display will read "ACC Ready."

When the system is off, the instrument cluster display will read "Adaptive Cruise Control (ACC) Off."

NOTE:

You cannot engage ACC under the following conditions:

  • When in 4WD Low
  • When brakes are applied

  • When the parking brake is applied

  • When the automatic transmission is in PARK, REVERSE or NEUTRAL
  • When the vehicle speed is below the minimum speed range
  • When the brakes are overheated
  • When the driver's door is open at low speeds
  • When the driver's seat belt is unbuckled at low speed
  • Electronic Stability Control (ESC) Full Off mode is active

To Activate/Deactivate

Push and release the Adaptive Cruise Control (ACC) on/off button. The ACC menu in the instrument cluster displays "ACC Ready."

To turn the system off, push and release the Adaptive Cruise Control (ACC) on/off button again. At this time, the system will turn off and the instrument cluster display will show "Adaptive Cruise Control (ACC) Off."

WARNING!

Leaving the Adaptive Cruise Control (ACC) system on when not in use is dangerous. You could accidentally set the system or cause it to go faster than you want. You could lose control and have a collision. Always leave the system off when you are not using it.

To Set A Desired ACC Speed

When the vehicle reaches the speed desired, push the SET (-) button and release. The instrument cluster display will show the set speed.

NOTE:

Fixed Speed Cruise Control can be used without an ACC distance set. To change between the different modes, push the ACC on/off button which turns the ACC and the Fixed Speed Cruise Control off. Pushing the Fixed Speed Cruise Control on/off button will result in turning on (changing to) Fixed Speed Cruise Control mode.

WARNING!

In the Fixed Speed Cruise Control mode (no ACC distance set), the system will not react to vehicles ahead. In addition, the proximity warning does not activate and no alarm will sound even if you are too close to the vehicle ahead since neither the presence of the vehicle ahead nor the vehicle-to-vehicle distance is detected. Be sure to maintain a safe distance between your vehicle and the vehicle ahead. Always be aware which mode is selected.

If ACC is set when the vehicle speed is below 20 mph (32 km/h), the set speed will default to 20 mph (20 km/h).

NOTE:

Fixed Speed Cruise Control cannot be set below 20 mph (32 km/h).

If either system is set when the vehicle speed is above 20 mph (32 km/h), the set speed shall be the current speed of the vehicle.

NOTE:

  • Keeping your foot on the accelerator pedal can cause the vehicle to continue to accelerate beyond the set speed. If this occurs, the message "ACC DRIVER OVERRIDE" will display in the instrument cluster display.
  • If you continue to accelerate beyond the set speed while an ACC distance is also set, the system will not be controlling the distance between your vehicle and the vehicle ahead. The vehicle speed will only be determined by the position of the accelerator pedal.

To Cancel

The following conditions cancel the ACC or Fixed Speed Cruise Control systems:

• The brake pedal is applied.
- The CANCEL button is pushed.
- An Anti-Lock Brake System (ABS) event occurs.

170 STARTING AND OPERATING

  • The gear selector is removed from the DRIVE position.
  • The Electronic Stability Control/Traction Control System (ESC/TCS) activates.
  • The vehicle parking brake is applied.
  • Driver seat belt is unbuckled at low speeds.
  • Driver door is opened at low speeds.
    ● A Trailer Sway Control (TSC) event occurs.
    ● The driver switches ESC to Full Off mode.
  • The braking temperature exceeds normal range (overheated).
  • The trailer brake is applied manually (if equipped).

The following conditions will only cancel the ACC system:

● Driver seat belt is unbuckled at low speeds
- Driver door is opened at low speeds

To Turn Off

The system will turn off and clear the set speed in memory if:

  • The Adaptive Cruise Control (ACC) on/off button is pushed
  • The Fixed Speed Cruise Control on/off button is pushed
    ● The ignition is placed in the OFF position
  • 4WD Low is engaged

To Resume

If there is a set speed in memory push the RES (+) button and then remove your foot from the accelerator pedal. The instrument cluster display will display the last set speed.

Resume can be used at any speed above 20 mph (32 km/h) when only Fixed Speed Cruise Control is being used.

Resume can be used at any speed above 0 mph (0 km/h) when ACC is active.

NOTE:

  • While in ACC mode when the vehicle comes to a complete stop longer than two seconds, the system will cancel. The driver will have to apply the brakes to keep the vehicle at a standstill.
  • ACC cannot be resumed if there is a stationary vehicle in front of your vehicle in close proximity.

WARNING!

The Resume function should only be used if traffic and road conditions permit. Resuming a set speed that is too high or too low for prevailing traffic and road conditions could cause the vehicle to accelerate or decelerate too sharply for safe operation. Failure to follow these warnings can result in a collision and death or serious personal injury.

To Vary The Speed Setting

To Increase Or Decrease The Set Speed

After setting a speed, you can increase the set speed by pushing the RES (+) button, or decrease speed by pushing the SET (-) button.

U.S. Speed (mph)

  • Pushing the RES (+) button, or SET (-) button once will result in a 1 mph speed adjustment. Each subsequent tap of the button results in an adjustment of 1 mph.
  • If the button is continually pushed, the set speed will continue to adjust in 5 mph increments until the button is released. The new set speed is reflected in the instrument cluster display.

Metric Speed (km/h)

  • Pushing the RES (+) button, or SET (-) button once will result in a 1 km/h speed adjustment. Each subsequent tap of the button results in an adjustment of 1 km/h.
  • If the button is continually pushed, the set speed will continue to adjust in 10 km/h increments until the button is released. The new set speed is reflected in the instrument cluster display.

When An ACC Distance Is Also Set:

  • When you use the SET (-) button to decelerate, if the engine's braking power does not slow the vehicle sufficiently to reach the set speed, the brake system will automatically slow the vehicle.
  • The ACC system applies the brake down to a full stop when following the vehicle in front. If your vehicle follows the vehicle in front to a standstill, your vehicle will release the brakes two seconds after coming to a complete stop.
  • The ACC system maintains set speed when driving uphill and downhill. However, a slight speed change on moderate hills is normal. In addition, downshifting may occur while climbing uphill or descending downhill. This is normal operation and necessary to maintain set speed. When driving uphill and down-hill, the ACC system will cancel if the braking temperature exceeds normal range (over-heated).

Setting The Following Distance In ACC

The specified following distance for Adaptive Cruise Control (ACC) can be set by varying the distance setting between four bars (longest), three bars (long), two bars (medium) and one bar (short). Using this distance setting and the vehicle speed, ACC calculates and sets the distance to the vehicle ahead. This distance setting displays in the instrument cluster display.

RAM 4500 Chassis Cab (2021) - Setting The Following Distance In ACC - 1

text_image Distance Settings

1 – Longest Distance Setting (Four Bars)
2 - Long Distance Setting (Three Bars)
3 - Medium Distance Setting (Two Bars)
4 — Short Distance Setting (One Bar)

To adjust the distance setting, push the Distance Button and release. Each time the button is pushed, the distance setting increases by one bar (longer). When the farthest distance is set, pushing the distance button again will reset to the shortest distance.

If there is no vehicle ahead, the vehicle will maintain the set speed. If a slower moving vehicle is detected in the same lane, the instrument cluster displays the ACC Set With Target Detected Indicator Light, and the system adjusts vehicle speed automatically to maintain the distance setting, regardless of the set speed.

The vehicle will then maintain the set distance until:

  • The vehicle ahead accelerates to a speed above the set speed.
  • The vehicle ahead moves out of your lane or view of the sensor.
    ● The distance setting is changed.
  • The system disengages.

The maximum braking applied by ACC is limited; however, the driver can always apply the brakes manually, if necessary.

NOTE:

The brake lights will illuminate whenever the ACC system applies the brakes.

A Proximity Warning will alert the driver if ACC predicts that its maximum braking level is not sufficient to maintain the set distance. If this occurs, a visual alert "BRAKE" will flash in the instrument cluster display and a chime will sound while ACC continues to apply its maximum braking force.

NOTE:

The “BRAKE!” screen in the instrument cluster display is a warning for the driver to take action and does not necessarily mean that the Forward Collision Warning system is applying the brakes autonomously.

Trailer Detect — If Equipped

When a trailer is detected, the ACC system automatically defaults to the longest setting (four bars). The setting can be overridden by pushing the Distance Button on the steering wheel.

Overtake Aid

When driving with ACC engaged and following a vehicle, the system will provide an additional acceleration up to the ACC set speed to assist in passing the vehicle. This additional acceleration is triggered when the driver utilizes the left turn signal and will only be active when passing on the left hand side.

ACC Operation At Stop

If the ACC system brings your vehicle to a standstill while following the vehicle in front, your vehicle will resume motion without any driver intervention if the vehicle in front starts moving within two seconds.

If the vehicle in front does not start moving within two seconds of your vehicle coming to a standstill, the ACC with Stop system will cancel and the brakes will release. A cancel message will display on the instrument cluster display and produce a warning chime. The driver must now manually operate the vehicle's accelerator and brakes.

While ACC is holding your vehicle at a standstill, if the driver seat belt is unbuckled or the driver door is opened, the ACC system will cancel and the brakes will release. Driver intervention will be required at this moment.

WARNING!

When the ACC system is resumed, the driver must ensure that there are no pedestrians, vehicles or objects in the path of the vehicle. Failure to follow these warnings can result in a collision and death or serious personal injury.

Display Warnings And Maintenance

"Wipe Front Radar Sensor In Front Of Vehicle" Warning

The “ACC/FCW Unavailable Wipe Front Radar Sensor” warning will display and a chime will sound when conditions temporarily limit system performance.

This most often occurs at times of poor visibility, such as in snow or heavy rain. The ACC system may also become temporarily blinded due to obstructions, such as mud, dirt or ice. In these cases, the instrument cluster display will display "ACC/FCW Unavailable Wipe Front Radar Sensor" and the system will deactivate.

This message can sometimes be displayed while driving in highly reflective areas (i.e. ice and snow, or tunnels with reflective tiles). The ACC system will recover after the vehicle has left these areas. Under rare conditions, when the radar is not tracking any vehicles or objects in its path this warning may temporarily occur.

NOTE:

If the "ACC/FCW Unavailable Wipe Front Radar Sensor" warning is active, Fixed Speed Cruise Control is still available.

If weather conditions are not a factor, the driver should examine the sensor. It may require cleaning or removal of an obstruction. The sensor is located in the camera in the center of the windshield, on the forward side of the rearview mirror.

To keep the ACC system operating properly, it is important to note the following maintenance items:

  • Always keep the sensor clean. Carefully clear the windshield.
  • Do not remove any screws from the sensor. Doing so could cause an ACC system malfunction or failure and require a sensor realignment.
  • Do not attach or install any accessories near the sensor, including transparent material or aftermarket grilles. Doing so could cause an ACC system failure or malfunction.

When the condition that deactivated the system is no longer present, the system will return to the “Adaptive Cruise Control Off” state and will resume function by simply reactivating it.

NOTE:

  • If the "ACC/FCW Unavailable Wipe Front Radar Sensor" message occurs frequently (e.g. more than once on every trip) without any snow, rain, mud, or other obstruction, have the radar sensor realigned at an authorized dealer.
  • Installing a snow plow, front-end protector, an aftermarket grille or modifying the grille is not recommended. Doing so may block the sensor and inhibit ACC/FCW operation.

"Clean Front Windshield" Warning

The “ACC/FCW Limited Functionality Clean Front Windshield” warning will display and a chime will sound when conditions temporarily limit system performance. This most often occurs at times of poor visibility, such as in snow or heavy rain and fog. The ACC system may also become temporarily blinded due to obstructions, such as mud, dirt, or ice on windshield, driving directly into the sun and fog on the inside of glass. In these cases, the instrument cluster display will show “ACC/FCW Limited Functionality Clean Front Windshield” and the system will have degraded performance.

This message can sometimes be displayed while driving in adverse weather conditions. The ACC/FCW system will recover after the vehicle has left these areas. Under rare conditions, when the camera is not tracking any vehicles or objects in its path this warning may temporarily occur.

If weather conditions are not a factor, the driver should examine the windshield and the camera located on the back side of the inside rearview mirror. They may require cleaning or removal of an obstruction.

When the condition that created limited functionality is no longer present, the system will return to full functionality.

NOTE:

If the “ACC/FCW Limited Functionality Clean Front Windshield” message occurs frequently (e.g. more than once on every trip) without any snow, rain, mud, or other obstruction, have the windshield and forward facing camera inspected at an authorized dealer.

Service ACC/FCW Warning

If the system turns off, and the instrument cluster displays “ACC/FCW Unavailable Service Required” or “Cruise/FCW Unavailable Service Required”, there may be an internal system fault or a temporary malfunction that limits ACC functionality. Although the vehicle is still drivable under normal conditions, ACC will be temporarily unavailable. If this occurs, try activating ACC again later, following an ignition cycle. If the problem persists, see an authorized dealer.

Precautions While Driving With ACC

NOTE:

  • Aftermarket add-ons such as snow plows, lift kits, and brush/grille bars can hinder module performance. Ensure the radar/camera has no obstructions in the field of view.
  • Height modifications can limit module performance and functionality.

  • Do not put stickers or easy passes over the camera/radar field of view.

  • Any modifications to the vehicle that may obstruct the field of view of the radar/camera are not recommended.

In certain driving situations, ACC may have detection issues. In these cases, ACC may brake late or unexpectedly. The driver needs to stay alert and may need to intervene.

The following are examples of these types of situations:

Towing A Trailer

ACC while towing a trailer is recommended only with an Integrated Trailer Brake Controller.

Aftermarket trailer brake controllers will not activate the trailer brakes when ACC is braking.

Offset Driving

ACC may not detect a vehicle in the same lane that is offset from your direct line of travel, or a vehicle merging in from a side lane. There may not be sufficient distance to the vehicle ahead. The offset vehicle may move in and out of the line of travel, which can cause your vehicle to brake or accelerate unexpectedly.

RAM 4500 Chassis Cab (2021) - Offset Driving - 1

RAM 4500 Chassis Cab (2021) - Offset Driving - 2

natural_image Top-down diagram of three cars on a road with dashed lines indicating lane boundaries (no text or symbols)

Offset Driving Condition Example

Turns And Bends

When driving on a curve with ACC engaged, the system may decrease the vehicle speed and acceleration for stability reasons, with no target vehicle detected. Once the vehicle is out of the curve the system will resume your original set speed. This is a part of normal ACC system functionality.

NOTE:

On tight turns ACC performance may be limited. The driver must maintain control of the vehicle, remain alert, and be ready to apply the brakes if needed.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Diagram showing vehicle trajectories with a traffic cone and a car, no text or symbols present

Turn Or Bend Example

Using ACC On Hills

When driving on hills, ACC may not detect a vehicle in your lane. Depending on the speed, vehicle load, traffic conditions, and the steepness of the hills, ACC performance may be limited.

NOTE:

The driver must maintain control of the vehicle, remain alert, and be ready to apply the brakes if needed.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image ACC Hill Example A0627000206US

Lane Changing

ACC may not detect a vehicle until it is completely in the lane in which you are traveling. In the illustration shown, ACC has not yet detected the vehicle changing lanes and it may not detect the vehicle until it's too late for the ACC system to take action. ACC may not detect a vehicle until it is completely in the lane. There may not be sufficient distance to the lane-changing vehicle. Always be attentive and ready to apply the brakes if necessary.

RAM 4500 Chassis Cab (2021) - Lane Changing - 1

natural_image Top-down diagram of four vehicles with a dashed road line, no text or symbols present

Lane Changing Example

Narrow Vehicles

Some narrow vehicles traveling near the outer edges of the lane or edging into the lane are not detected until they have moved fully into the lane. There may not be sufficient distance to the vehicle ahead.

RAM 4500 Chassis Cab (2021) - Narrow Vehicles - 1

text_image A0627000208US

Narrow Vehicle Example

Stationary Objects And Vehicles

ACC does not react to stationary objects and stationary vehicles. For example, ACC will not react in situations where the vehicle you are following exits your lane and the vehicle ahead is stopped in your lane. Always be attentive and ready to apply the brakes if necessary ↩ page 449.

RAM 4500 Chassis Cab (2021) - Stationary Objects And Vehicles - 1

natural_image Top-down diagram of three cars with a dashed line and a vertical marker, no text or symbols present

Stationary Object And Stationary Vehicle Example

PARKSENSE FRONT/REAR PARK ASSIST — IF EQUIPPED

The ParkSense Park Assist system provides visual and audible indications of the distance between the rear, and/or front fascia/bumper, and a detected obstacle when backing up or moving forward (e.g. during a parking maneuver). For limitations of this system and recommendations, see ↻ page 182.

ParkSense will retain the system state (enabled or disabled) from the previous ignition cycle when the ignition is placed in the ON/RUN position.

ParkSense can be active only when the gear selector is in REVERSE or DRIVE. If ParkSense is enabled at one of these gear selector positions, the system will remain active until the vehicle speed is increased to approximately 7 mph (11 km/h) or above. A warning will appear in the instrument cluster display when the vehicle is in REVERSE, indicating the vehicle is above ParkSense operating speed. The system will become active again if the vehicle speed is decreased to speeds less than approximately 6 mph (9 km/h).

PARKSENSE SENSORS

For the 3500, 4500 and 5500 Chassis Cab vehicles, the rear ParkSense sensors are shipped loose. Please refer to the Ram Body Builders Guide for more information.

The four ParkSense sensors are to be located in the rear fascia/bumper, and monitor the area behind the vehicle that is within the sensors' field of view.

The sensors can detect obstacles from approximately 12 inches (30 cm) up to 79 inches (200 cm) from the rear fascia/bumper in the horizontal direction, depending on the location, type and orientation of the obstacle.

NOTE:

If equipped as a dually, the ParkSense system has six rear sensors to assist in detection around the dually flares.

The six ParkSense sensors, located in the front fascia/bumper, monitor the area in front of the vehicle that is within the sensors' field of view. The sensors can detect obstacles from approximately 12 inches (30 cm) up to 47 inches (120 cm) from the front fascia/bumper in the horizontal direction, depending on the location, type and orientation of the obstacle.

PARKSENSE WARNING DISPLAY

The ParkSense Warning screen is located within the instrument cluster display → page 90. It provides visual warnings to indicate the distance between the rear fascia/bumper and/or front fascia/bumper and the detected obstacle.

PARKSENSE DISPLAY

The warning display will turn on indicating the system status when the vehicle is in REVERSE or when the vehicle is in DRIVE and an obstacle has been detected.

The system will indicate a detected obstacle by showing a single arc in the left and/or right rear regions based on the obstacle's distance and location relative to the vehicle.

RAM 4500 Chassis Cab (2021) - PARKSENSE DISPLAY - 1

text_image 1 2 3 4 5 6 7 8 9 10

Front/Rear ParkSense Arcs

1 — No Tone/Solid Arc 6 — Fast Tone/Flashing Arc
2 – No Tone/Flashing Arc 7 – Fast Tone/Flashing Arc
3 — Fast Tone/Flashing Arc 8 — Slow Tone/Solid Arc
4 — Continuous Tone/Flashing Arc 9 — Slow Tone/Solid Arc
5 — Continuous Tone/Flashing Arc 10 — Single 1/2 Second Tone/Solid Arc

A0629000255US

If an obstacle is detected in the left and/or right rear region, the display will show a single arc in the left and/or right rear region and the system will produce a tone. As the vehicle moves closer to the obstacle, the display will show the single arc moving closer to the vehicle and the tone will change from a single 1/2 second tone to slow, to fast, to continuous.

The vehicle is close to the obstacle when the display shows one flashing arc and sounds a continuous tone. The following chart shows the warning alert operation when the system is detecting an obstacle:

WARNING ALERTS FOR REAR
Rear Distance (inches/cm)Greater than 79 inches (200 cm)79-59 inches (200-150 cm)59-47 inches (150-120 cm)47-39 inches (120-100 cm)39-25 inches (100-65 cm)25-12 inches (65-30 cm)Less than 12 inches (30 cm)
Audible Alert ChimeNoneSingle 1/2 Second ToneSlow Slow Fast Fast Continuous
Arcs-Left NoneNone None NoneNone 6th Flashing5th Flashing
Arcs-Center None10th Solid 9thSolid 8th Solid 7thFlashing 6th Flashing5th Flashing
Arcs-RightNone NoneNone None None6th Flashing5th Flashing
Radio Volume ReducedNoYesYesYesYesYesYes
WARNING ALERTS FOR FRONT
Front Distance (inches/cm)Greater than 47 inches (120 cm)47-39 inches (120-100 cm)39-25 inches (100-65 cm)25-12 inches (65-30 cm)Less than 12 inches (30 cm)
Audible Alert Chime NoneNone None Fast Continuous
Arcs-Left None NoneNone None 3rd Flashing 4th Flashing
Arcs-Center None1st Solid 2nd Flashing3rd Flashing 4th Flashing
Arcs-RightNone None None 3rd Flashing 4th Flashing
Radio Volume ReducedNoNoNoYesYes

NOTE:

ParkSense will reduce the volume of the radio, if on, when the system is sounding an audio tone.

Front Park Assist Audible Alerts

ParkSense will turn off the Front Park Assist audible alert (chime) after approximately three seconds when an obstacle has been detected, the vehicle is stationary, and brake pedal is applied.

Adjustable Chime Volume Settings

The Front and Rear chime volume settings are programmable through the Uconnect system page 228.

ENABLING AND DISABLING PARKSENSE

RAM 4500 Chassis Cab (2021) - ENABLING AND DISABLING PARKSENSE - 1

Front ParkSense can be enabled and disabled with the Front ParkSense switch.

Rear ParkSense can be enabled and disabled with the Rear ParkSense switch.

When the gear selector is moved to REVERSE and the Front or Rear system is disabled, the instrument cluster display will show a vehicle

graphic with an "Off" message overlay over the system that is off (Front or Rear system). This vehicle graphic will be displayed for as long as the vehicle is in REVERSE.

The Front or Rear ParkSense switch LED will be on when Front or Rear ParkSense is disabled or requires service. The Front or Rear ParkSense switch LED will be off when the Front or Rear system is enabled. If the Front or Rear ParkSense switch is pushed, and the system requires service, the Front or Rear ParkSense switch LED will blink momentarily, and then the LED will be on.

SERVICE THE PARKSENSE PARK ASSIST SYSTEM

During vehicle start up, when the Front/Rear ParkSense System has detected a faulted condition, the instrument cluster display will show the "Front/Rear ParkSense Unavailable Service Required" or the "Front/Rear ParkSense Unavailable Wipe Sensors" message.

When the gear selector is moved into REVERSE, a vehicle graphic will show in the instrument cluster display, along with the display overlay "Wipe Sensors." If the system needs service, the display overlay will read "Service." Under this condition, ParkSense will not operate.

If "Front/Rear ParkSense Unavailable Wipe Sensors" appears in the instrument cluster display make sure the outer surface and the underside of the rear fascia/bumper is clean and clear of snow, ice, mud, dirt or other obstruction, and then cycle the ignition. If the message continues to appear, see an authorized dealer.

If "Front/Rear ParkSense Unavailable Service Required" appears in the instrument cluster display, see an authorized dealer.

CLEANING THE PARKSENSE SYSTEM

Clean the ParkSense sensors with water, car wash soap and a soft cloth. Do not use rough or hard cloths. Do not scratch or poke the sensors. Otherwise, you could damage the sensors.

PARKSENSE SYSTEM USAGE PRECAUTIONS

NOTE:

  • Ensure that the front and rear bumpers are free of snow, ice, mud, dirt and debris to keep the ParkSense system operating properly.
  • Jackhammers, large trucks, and other vibrations could affect the performance of ParkSense.
  • When you move the gear selector to the REVERSE position and Front or Rear ParkSense is turned off, the instrument cluster display will show "Off" on the vehicle graphic arcs. This vehicle graphic will be displayed for as long as the vehicle is in REVERSE.

  • ParkSense, when on, will reduce the volume of the radio when it is sounding a tone.

  • Clean the ParkSense sensors regularly, taking care not to scratch or damage them. The sensors must not be covered with ice, snow, slush, mud, dirt or debris. Failure to do so can result in the system not working properly. The ParkSense system might not detect an obstacle behind or in front of the fascia/bumper, or it could provide a false indication that an obstacle is behind or in front of the fascia/bumper.
  • Use the ParkSense switch to turn the ParkSense system off if obstacles such as bicycle carriers, trailer hitches, etc. are placed within 18 inches (45 cm) from the rear fascia/bumper. Failure to do so can result in the system misinterpreting a close obstacle as a sensor problem, causing the "Front/Rear ParkSense Unavailable Service Required" message to be appear in the instrument cluster display.

WARNING!

  • Drivers must be careful when backing up even when using ParkSense. Always check carefully behind your vehicle, look behind you, and be sure to check for pedestrians, animals, other vehicles, obstructions, and blind spots before backing up. You are responsible for safety and must continue to pay attention to your surroundings. Failure to do so can result in serious injury or death.
  • Before using ParkSense, it is strongly recommended that the ball mount and hitch ball assembly be disconnected from the vehicle when the vehicle is not used for towing. Failure to do so can result in injury or damage to vehicles or obstacles because the hitch ball will be much closer to the obstacle than the rear fascia when the vehicle sounds the continuous tone. Also, the sensors could detect the ball mount and hitch ball assembly, depending on its size and shape, giving a false indication that an obstacle is behind the vehicle.

CAUTION!

  • ParkSense is only a parking aid and it is unable to recognize every obstacle, including small obstacles. Parking curbs might be temporarily detected or not detected at all. Obstacles located above or below the sensors will not be detected when they are in close proximity.
  • The vehicle must be driven slowly when using ParkSense in order to be able to stop in time when an obstacle is detected. It is recommended that the driver looks over his/her shoulder when using ParkSense.

LANESENSE — IF EQUIPPED

LANESENSE OPERATION

The LaneSense system is operational at speeds above 37 mph (60 km/h) and below 112 mph (180 km/h). It uses a forward looking camera to detect lane markings and measure vehicle position within the lane boundaries.

When both lane markings are detected and the driver drifts out of the lane (no turn signal has been applied) OR the driver departs the lane on the opposite side of the applied turn signal

(if the left turn signal is applied and the vehicle departs to the right), the LaneSense system provides a haptic warning in the form of torque applied to the steering wheel, as well as a visual warning in the instrument cluster display to prompt the driver to remain within the lane boundaries.

The driver may manually override the haptic warning by applying torque into the steering wheel at any time.

When only a single lane marking is detected and the driver drifts across that lane marking (no turn signal applied), the LaneSense system provides a visual warning through the instrument cluster display to prompt the driver to remain within the lane.

When only a single lane marking is detected, a haptic (torque) warning will not be provided.

NOTE:

When operating conditions have been met, the LaneSense system will monitor if the driver's hands are on the steering wheel and provide an audible and visual warning to the driver if removed. The system will cancel if the driver does not return their hands to the wheel.

TURNING LANESENSE ON OR OFF

RAM 4500 Chassis Cab (2021) - TURNING LANESENSE ON OR OFF - 1

The LaneSense button is located on the switch panel below the Uconnect display.

NOTE:

If your vehicle is equipped with a 12-inch Uconnect Display screen, the LaneSense button is located above the display.

To turn the LaneSense system on, push the LaneSense button (LED turns off). A "LaneSense On" message is shown in the instrument cluster display.

To turn the LaneSense system off, push the LaneSense button again (LED turns on).

NOTE:

The LaneSense system will retain the last system state (on or off) from the last ignition cycle when the ignition is changed to the ON/RUN position.

LANESENSE WARNING MESSAGE

The LaneSense system will indicate the current lane drift condition through the instrument cluster display.

When the LaneSense system is on, the lane lines are gray when both of the lane boundaries have not been detected and the LaneSense telltale solid white.

RAM 4500 Chassis Cab (2021) - LANESENSE WARNING MESSAGE - 1

natural_image Top-down view of a car on two parallel road markings with arrows pointing downward (no text or symbols)

System ON (Gray Lines) With White Telltale

Left Lane Departure — Only Left Lane Detected

- When the LaneSense system is on, the LaneSense Telltale is solid white when only the left lane marking has been detected and the system is ready to provide visual warnings in the instrument cluster display if an unintentional lane departure occurs on the left side.

- When the LaneSense system senses the lane has been approached and is in a lane departure situation, the visual warning in the instrument cluster display will show the left lane line flashing yellow (on/off). The LaneSense telltale changes from solid white to flashing yellow.

RAM 4500 Chassis Cab (2021) - Left Lane Departure — Only Left Lane Detected - 1

natural_image Top-down view of a car with a downward arrow and two parallel lines, no text or symbols present.

Lane Crossed (Flashing Yellow Lane Line) With Yellow Telltale |

NOTE:

The LaneSense system operates with similar behavior for a right lane departure when only the right lane marking has been detected.

Left Lane Departure — Both Lane Lines Detected

- When the LaneSense system is on, and both the lane markings have been detected, the system is "armed" to provide visual warnings in the instrument cluster display and a torque warning in the steering wheel if an unintentional lane departure occurs. The lane lines turn from gray to white and the LaneSense telltale is solid green.

RAM 4500 Chassis Cab (2021) - Left Lane Departure — Both Lane Lines Detected - 1

text_image Lanes Sensed (White Lines) With Green Telltale A0631000068US

- When the LaneSense system senses a lane drift situation, the left lane line turns solid yellow. The LaneSense telltale changes from solid green to solid yellow. At this time torque is applied to the steering wheel in the opposite direction of the lane boundary.

For example: If approaching the left side of the lane the steering wheel will turn to the right.

RAM 4500 Chassis Cab (2021) - Left Lane Departure — Both Lane Lines Detected - 2

text_image Lane Approached (Solid Yellow Lane Line) With Solid Yellow Telltale |

- When the LaneSense system senses the lane has been approached and is in a lane departure situation, the left lane line flashes yellow (on/off). The LaneSense telltale changes from solid yellow to flashing yellow. At this time torque is applied to the steering wheel in the opposite direction of the lane boundary.

For example: If approaching the left side of the lane the steering wheel will turn to the right.

RAM 4500 Chassis Cab (2021) - Left Lane Departure — Both Lane Lines Detected - 3

text_image Lane Crossed (Flashing Yellow Lane Line) With Flashing Yellow Telltale

NOTE:

The LaneSense system operates with similar behavior for a right lane departure.

CHANGING LANESENSE STATUS

The LaneSense system has settings to adjust the intensity (Low/Medium/High) of the torque warning and the warning zone sensitivity (Early/Medium/Late) that you can configure through the Uconnect system ➤ page 228.

NOTE:

  • When enabled the system operates above 37 mph (60 km/h) and below 112 mph (180 km/h).
  • Use of the turn signal suppresses the warnings.
  • The system will not apply torque to the steering wheel whenever a safety system engages (Anti-Lock Brakes, Traction Control System, Electronic Stability Control, Forward Collision Warning, etc.).

PARKVIEW REAR BACK UP CAMERA

The ParkView Rear Back Up Camera allows you to see an on-screen image of the rear surroundings of your vehicle whenever the gear selector is put into REVERSE. The image will be displayed on the Navigation/Multimedia radio display screen along with a caution note to "Check Entire Surroundings" across the top of the screen. After five seconds this note will disappear. The ParkView Camera is located in the center of the tailgate handle.

NOTE:

For the 3500, 4500, and 5500 Chassis Cab vehicles, the Rear Backup Camera is shipped loose and not installed. Please refer to the Ram Body Builders Guide for more information.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

Manual Activation Of The Rear View Camera:

  1. Press the "Controls" button located on the bottom of the Uconnect display.
  2. Press the "Back Up Camera" icon to turn the Rear View Camera system on.

When the vehicle is shifted out of REVERSE (with camera delay turned off), the rear camera mode

is exited and the previous screen appears. When the vehicle is shifted out of REVERSE (with camera delay turned on), the camera image will continue to be displayed for up to 10 seconds unless the following conditions occur: The vehicle speed exceeds 8 mph (13 km/h), the vehicle is shifted into PARK, the vehicle's ignition is placed in the OFF position, or the user presses image defeat "X" to exit out of the camera video display.

Whenever the Rear View Camera image is activated through the "Backup Camera" button in the Controls menu, and the vehicle speed is greater than, or equal to, 8 mph (13 km/h), a display timer for the image is initiated. The image will continue to be displayed until the display timer exceeds 10 seconds.

NOTE:

  • If the vehicle speed remains below 8 mph (13 km/h), the Rear View Camera image will be displayed continuously until deactivated via the touchscreen button "X", the transmission is shifted into PARK, or the ignition is placed in the OFF position.
  • The touchscreen button "X" to disable display of the camera image is made available ONLY when the vehicle is not in REVERSE.

Cargo Camera Icons — If Equipped

RAM 4500 Chassis Cab (2021) - Cargo Camera Icons — If Equipped - 1

Backup Camera Touchscreen Button

Cargo Camera Touchscreen Button

AUX Camera Touchscreen Button

If equipped with a Cargo Camera, a touchscreen button is made available to indicate the current active Camera image being displayed whenever the Rear View Camera image is displayed.

If equipped with a Cargo Camera, a touchscreen button to switch the display to Cargo Camera image is made available whenever the Rear View Camera image is displayed.

A touchscreen button "X" to disable display of the camera image is made available when the vehicle is not in REVERSE gear.

When enabled, active guidelines are overlaid on the backup camera image to illustrate the width of the vehicle and its projected backup path based on the steering wheel position. The active guidelines will show separate zones that will help indicate the distance to the rear of the vehicle. These settings can be adjusted within Uconnect Settings ➤ page 228.

A dashed center line overlay indicates the center of the vehicle to assist with parking or aligning to a hitch/receiver. The following table shows the approximate distances for each zone:

ZonesDistance To The Rear Of The Vehicle
Red 0 - 1 ft (0 - 30 cm)
Yellow 1 ft - 6.5 ft (30 cm - 2m)
Green6.5 ft or greater(2 m or greater)

WARNING!

Drivers must be careful when backing up even when using the ParkView Rear Back Up Camera. Always check carefully behind your vehicle, and be sure to check for pedestrians, animals, other vehicles, obstructions, or blind spots before backing up. You are responsible for the safety of your surroundings and must continue to pay attention while backing up. Failure to do so can result in serious injury or death.

CAUTION!

  • To avoid vehicle damage, ParkView should only be used as a parking aid. The ParkView camera is unable to view every obstacle or object in your drive path.
  • To avoid vehicle damage, the vehicle must be driven slowly when using ParkView to be able to stop in time when an obstacle is seen. It is recommended that the driver look frequently over his/her shoulder when using ParkView.

NOTE:

If snow, ice, mud, or any foreign substance builds up on the camera lens, clean the lens, rinse with water, and dry with a soft cloth. Do not cover the lens.

Zoom View

RAM 4500 Chassis Cab (2021) - Zoom View - 1

When the Rear View Camera image is being displayed, and the vehicle speed is below 8 mph (13 km/h) while in any gear selector position,

Zoom View is available. By pressing the "magnifying glass" icon in the upper left of the display screen, the image will zoom in to four times the standard view. Pressing the icon a second time will return the view to the standard Backup Camera display.

When Zoom View is selected while the vehicle is in REVERSE, then shifted to DRIVE, the camera delay view will display the standard Backup Camera view. If the vehicle is then returned to REVERSE gear from DRIVE, the Zoom View selection will automatically resume.

Shifting to NEUTRAL from any gear will maintain the selected view (Zoom or Standard) as long as the vehicle is below 8 mph (13 km/h).

If the vehicle is in PARK, Zoom View is available until the gear selector is placed in DRIVE or REVERSE.

NOTE:

  • If the vehicle is in DRIVE, NEUTRAL, or REVERSE, and speed is greater than or equal to 8 mph (13 km/h), Zoom View is unavailable and the icon will appear gray.
  • While in Zoom View, the guidelines will not be visible.

AUX CAMERA — IF EQUIPPED

Your vehicle may be equipped with one or two AUX Cameras, which display a rearview image from the trailer on the touchscreen.

Activation

The AUX Camera is activated by first pressing the Backup Camera, Cargo Camera (if equipped), or Surround View Camera (if equipped) button on the touchscreen, followed by the AUX button located in the upper left corner of the rearview display. The AUX camera can also be activated when the vehicle is in REVERSE by pressing the AUX button.

If equipped with two AUX Cameras, you can switch between each camera by pressing the AUX1 or AUX2 buttons on the Trailer Camera display.

RAM 4500 Chassis Cab (2021) - Activation - 1

AUX1 Camera Button

AUX2 Camera Button

Deactivation

The AUX Camera is deactivated by pressing the "X" in the upper right corner of the touchscreen. This will return the display back to the previously displayed screen.

NOTE:

- If the AUX button is pressed and no AUX Camera is connected, the touchscreen will display a blue screen along with the message "Camera System Unavailable." The screen can be exited out by pressing the "X" in the upper right hand corner. This will return the display back to the previously displayed screen.

  • Zoom View is not available with the AUX Camera feature.
  • The display will always default to the Trailer Camera display (AUX 1).

Your vehicle may be equipped with the Surround View Camera system that allows you to see an on-screen image of the surroundings and Top View of your vehicle whenever the gear selector is put into REVERSE or manually activated via the Uconnect system. The Top View of the vehicle will show which doors are open. The image will be displayed on the touchscreen display along with a caution note "Check Entire Surroundings" across the top of the screen. After five seconds, this note will disappear. The Surround View Camera system is comprised of three sequential cameras located in the front grille and side mirrors, in addition to a fourth Rear Back Up Camera.

NOTE:

  • For the 3500, 4500, and 5500 Chassis Cab vehicles, the Rear Backup Camera is shipped loose and not installed. Please refer to the Ram Body Builder's Guide for more information.
  • The Surround View Camera system has programmable settings that may be selected through the Uconnect system ➤ page 228.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

Press this button on the touchscreen to enter the Surround View Camera menu in the Uconnect system.

When the vehicle is shifted into REVERSE, the Rear View and Top View is the default view of the system.

If the camera delay is turned on, the camera image will display for up to 10 seconds after shifting out of REVERSE. The camera image will not display for 10 seconds if the vehicle speed exceeds 8 mph (13 km/h), the vehicle is shifted into PARK, or the ignition is placed in the OFF position. The "X" button on the touchscreen disables the display of the camera image.

If the camera delay is turned off, the camera image will close and display the previous screen after shifting out of REVERSE.

If active guidelines are enabled, the lines are overlaid on the image in the Rear View to illustrate the width of the vehicle. The view will also include the side view mirrors and its projected back up path based on the steering wheel position.

There are different colored zones to indicate the distance to the rear of the vehicle. Refer to the chart below:

ZoneDistance To The Rear Of The Vehicle
Red 0 - 1 ft (0 - 30 cm)
Yellow 1 ft - 6.5 ft (30 cm - 2 m)
Green6.5 ft or greater(2 m or greater)

Modes Of Operation

Standard Rear View can be manually activated by selecting "Back Up Camera" through the Controls menu within the Uconnect system.

Top View

The Top View will show in the Uconnect system with Rear View and Front View in a split screen display. There are integrated ParkSense arcs in the image at the front and rear of the vehicle.

The arcs will change color from yellow to red corresponding the distance zones to the oncoming object.

The fifth button of the ParkSense Camera View screen will change based on the features present in the vehicle. If not equipped with a Cargo Camera or Trailer Reverse Guidance, the Backup Camera soft button will be displayed. If equipped with a Cargo Camera but no Trailer Reverse Guidance, the Cargo Camera soft button will be displayed. If equipped with both a Cargo Camera and Trailer Reverse Guidance, the Cargo/Trailer Reverse Guidance soft button will be displayed.

RAM 4500 Chassis Cab (2021) - Top View - 1

text_image Top View Rear View

ParkSense Camera View

NOTE:

  • Front tires will display on the image when the tires are turned.
  • Due to wide angle cameras in mirrors, the image will appear distorted.
  • Top View will show which doors are open.
  • Open front doors will cancel the outside image.

Rear View

RAM 4500 Chassis Cab (2021) - Rear View - 1

This is the default view of the system in REVERSE and is always paired with the Top View of the vehicle with optional active guidelines for the

projected path when enabled.

Rear Cross Path View

RAM 4500 Chassis Cab (2021) - Rear View - 2

Pressing the Rear Cross Path soft key will give the driver a wider angle view of the Rear View. The Top View will be disabled when this is selected.

Front View

RAM 4500 Chassis Cab (2021) - Front View - 1

The Front View will show you what is immediately in front of the vehicle and is always paired with the Top View of the vehicle.

Front Cross Path View

RAM 4500 Chassis Cab (2021) - Front Cross Path View - 1

Pressing the Front Cross Path soft key will give the driver a wider angle view of the Front View. The Top View will be disabled when this is selected.

Rear View Camera

RAM 4500 Chassis Cab (2021) - Rear View Camera - 1

Pressing the Backup Camera soft key will provide a full screen rear view with Zoom View.

NOTE:

If the Rear View Camera view was selected through the Surround View Camera menu, exiting out of the Rear View screen will return to the Surround View menu. If the Back Up Camera was manually activated through the Controls menu of the Uconnect system, exiting out of the display screen will return to the Controls menu.

Cargo Camera

RAM 4500 Chassis Cab (2021) - Cargo Camera - 1

Pressing the Cargo Camera soft key will provide a full screen view of the cargo area.

NOTE:

If the Cargo Camera view was selected through the Surround View screen, exiting out of the Cargo Camera screen will return to the Surround View screen. If the Cargo Camera was manually activated through the Controls menu of the Uconnect display, exiting out of the display screen will return to the Controls menu.

Trailer Reverse Guidance

RAM 4500 Chassis Cab (2021) - Trailer Reverse Guidance - 1

Pressing the Trailer Reverse Guidance soft key will provide a full screen view of the cargo area and trailer.

RAM 4500 Chassis Cab (2021) - Trailer Reverse Guidance - 2

Pressing the Left & Right Tow Mirror Split Screen View button within the Trailer Reverse Guidance screen will display a split screen to allow the

driver to see both sides of the trailer at the same time. This view allows the driver to pan left/right to better frame the trailer in the image.

NOTE:

Trailer Reverse Guidance can only be selected through the Surround View screen; exiting out of the Trailer Reverse Guidance screen will return to the Surround View screen.

Zoom View

When the Rear View image is being displayed, and the vehicle speed is below 8 mph (13 km/h) while in any gear, Zoom View is available. By pressing the "magnifying glass" icon in the upper left of the display screen, the image will zoom in to four times the standard view. Pressing the icon a second time will return the view to the standard Rear View.

When Zoom View is selected while the vehicle is in REVERSE, then shifted to DRIVE, the camera delay view will display the standard Back Up Camera view. If the vehicle is then returned to REVERSE gear from DRIVE, the Zoom View selection will automatically resume.

Shifting to NEUTRAL from any gear will maintain the selected view (Zoom or Standard) as long as the vehicle is below 8 mph (13 km/h).

If the vehicle is in PARK, Zoom View is available until the gear selector is placed in DRIVE or REVERSE and speeds are at or above 8 mph (13 km/h).

NOTE:

  • If the vehicle is in DRIVE, NEUTRAL, or REVERSE, and speed is greater than or equal to 8 mph (13 km/h), Zoom View is unavailable and the icon will appear gray.
  • While in Zoom View, the guidelines will not be visible.

Deactivation

The system is deactivated in the following conditions if it was activated automatically:

- When the vehicle is shifted out of REVERSE (with camera delay turned on), the camera image will continue to be displayed for up to 10 seconds unless the vehicle speed exceeds 8 mph (13 km/h), the vehicle is shifted into PARK or the ignition is placed in the OFF position. There is a touchscreen button "X" to disable the display of the camera image.

- When the vehicle is shifted out of REVERSE (with camera delay turned off), the Surround View Camera mode is exited and the last known screen appears again.

The system is deactivated in the following conditions if it was activated manually from the Uconnect controls menu via the Surround View Camera button, Backup Camera button, Cargo Camera button or Forward Facing Camera button:

- The "X" button on the display is pressed

● Vehicle is shifted into PARK

- Ignition is placed in the OFF position

- Vehicle speed is over 8 mph (13 km/h) for 10 seconds

NOTE:

If the Surround View Camera, Cargo Camera, Backup Camera, or Forward Facing Camera is activated manually, and the vehicle is shifted into REVERSE, deactivation methods for automatic activation are assumed.

The camera delay system is turned off manually through Uconnect Settings ↩ page 228.

NOTE:

  • If snow, ice, mud, or any foreign substance builds up on the camera lenses, clean the lenses, rinse with water, and dry with a soft cloth. Do not cover the lenses.
  • If a malfunction with the system has occurred, see an authorized dealer.

Cargo Camera Zoom View

RAM 4500 Chassis Cab (2021) - Cargo Camera Zoom View - 1

When the Cargo Camera image is being displayed, and the vehicle speed is below 8 mph (13 km/h) while in any gear selector position,

Zoom View is available. By pressing the "magnifying glass" icon in the upper left of the display screen, the image will zoom in to four times the standard view. Pressing the icon a second time will return the view to the standard Cargo Camera display.

When Zoom View is selected while the vehicle is in REVERSE, then shifted to DRIVE, the camera delay view will display the standard Cargo Camera view. If the vehicle is then returned to REVERSE gear from DRIVE, the Zoom View selection will automatically resume.

Shifting to NEUTRAL from any gear will maintain the selected view (Zoom or Standard) as long as the vehicle is below 8 mph (13 km/h).

Zoom View is available until the gear selector is placed in DRIVE or REVERSE and speeds are at or above 8 mph (13 km/h).

NOTE:

  • If the vehicle is in DRIVE, NEUTRAL, or REVERSE, and speed is greater than or equal to 8 mph (13 km/h), Zoom View is unavailable and the icon will appear gray.
  • While in Zoom View, the dynamic centerline will not be visible.

Forward Facing Camera With Tire Lines — If Equipped

The Forward Facing Camera displays a front view image of the road ahead, along with tire lines to guide the driver when driving on narrow roads. Tire lines can be activated/deactivated through the Uconnect settings.

Activation

The Forward Facing Camera can be activated by pressing the Forward Camera soft button on the touchscreen.

Once activated, the camera image will remain on as long as the vehicle speed is below 8 mph (13 km/h) and the vehicle is not in 4WD Low.

Deactivation

The Forward Facing Camera is deactivated in the following conditions:

  • The vehicle is not in 4WD Low and the vehicle speed exceeds 8 mph (13 km/h) for 10 seconds.
  • The "X" button on the display is pressed.
    ● Vehicle is shifted into PARK.
  • Ignition is placed in the OFF position.

NOTE:

If the vehicle is in 4WD Low, the Forward Facing Camera image will be displayed until the "X" button is pressed or the ignition is placed in the OFF position. If the vehicle goes out of 4WD Low, then the Forward Facing Camera will deactivate.

Trailer Reverse Guidance — If Equipped

The Trailer Reverse Guidance feature assists the driver in backing up a trailer by providing adjustable camera views of the trailer and surrounding area. The cameras are mounted on the side mirrors and the images will be displayed side-by-side on the touchscreen. Left and right camera images are swapped and mirrored on the touchscreen to show the equivalent area behind the vehicle as though the driver is using the side mirrors.

Activation

The Trailer Reverse Guidance feature can be activated by pressing the Trailer Reverse Guidance button on the Backup/Cargo Camera Display.

Deactivation

When the vehicle is shifted out of REVERSE (with camera delay turned on), the camera image will continue to be displayed for up to 10 seconds unless the vehicle speed exceeds 8 mph (13 km/h), the vehicle is shifted into PARK or the ignition is placed in the OFF position. There is a touchscreen button "X" to disable the display of the camera image.

If Trailer Reverse Guidance is selected through manually activated Surround View, Backup Camera, or Cargo Camera, the following deactivation conditions apply:

  • The "X" button on the display is pressed
    ● The vehicle is shifted into PARK
  • The ignition is placed in the OFF position
  • The vehicle speed is over 8 mph (13 km/h) for 10 seconds

WARNING!

Drivers must be careful when backing up even when using the Surround View Camera. Always check carefully behind your vehicle, and be sure to check for pedestrians, animals, other vehicles, obstructions, or blind spots before backing up. You are responsible for the safety of your surroundings and must continue to pay attention while backing up. Failure to do so can result in serious injury or death.

CAUTION!

  • To avoid vehicle damage, Surround View should only be used as a parking aid. The Surround View camera is unable to view every obstacle or object in your drive path.
  • To avoid vehicle damage, the vehicle must be driven slowly when using Surround View to be able to stop in time when an obstacle is seen. It is recommended that the driver look frequently over his/her shoulder when using Surround View.

NOTE:

If the vehicle is not equipped with a Pickup Box:

  • The bottom wedge of the Top View will be displayed in black.
  • The Rear Cross Path soft button will be grayed out.
  • The guidelines will not be overlaid on Top View/Rear View and Full Screen of Rear View.
  • Black video will be displayed for the right side of the Top and Rear View, and full screen of the Rear View when the Rear View Camera is not connected.

AUX CAMERA — IF EQUIPPED

Your vehicle may be equipped with one or two AUX Cameras, which display a rearview image from the trailer on the touchscreen.

Activation

The AUX Camera is activated by first pressing the Backup Camera, Cargo Camera (if equipped), or Surround View Camera (if equipped) button on the touchscreen, followed by the AUX button located in the upper left corner of the rearview display. The AUX camera can also be activated when the vehicle is in REVERSE by pressing the AUX button.

If equipped with two AUX Cameras, you can switch between each camera by pressing the AUX1 or AUX2 buttons on the Trailer Camera display.

RAM 4500 Chassis Cab (2021) - Activation - 1
AUX1 Camera Button
AUX2 Camera Button

Deactivation

The AUX Camera is deactivated by pressing the "X" in the upper right corner of the touchscreen. This will return the display back to the previously displayed screen.

NOTE:

  • If the AUX button is pressed and no AUX Camera is connected, the touchscreen will display a blue screen along with the message "Camera System Unavailable." The screen can be exited out by pressing the "X" in the upper right hand corner. This will return the display back to the previously displayed screen.
  • Zoom View is not available with the AUX Camera feature.
  • The display will always default to the Trailer Camera display (AUX 1).

ENGINE RUNAWAY

Diesel engine runaway is a rare condition affecting diesel engines, where the engine consumes its own lubrication oil and runs at higher and higher RPM until it overspeeds to a point where it destroys itself due to either mechanical failure or engine seizure through lack of lubrication.

WARNING!

In case of engine runaway due to flammable fumes from fuel spills or turbocharger oil leaks being sucked into the engine, do the following to help avoid personal injury and/or vehicle damage:

  • Turn the ignition switch to the OFF position
  • Using a CO2 or dry chemical type fire extinguisher, direct the spray from the fire extinguisher into the grille on the passenger side so that the spray enters the engine air intake.

The inlet for the engine air intake is located behind the passenger side headlamp and receives air through the grille.

REFUELING THE VEHICLE — GASOLINE ENGINE

CAUTION!

  • Damage to the fuel system or emissions control system could result from using an improper fuel tank filler tube cap (fuel filler cap). A poorly fitting cap could let impurities into the fuel system. Also, a poorly-fitted aftermarket cap can cause the MIL (Malfunction Indicator Light) to illuminate due to fuel vapors escaping from the system.
  • A poorly fitting fuel filler cap may cause the MIL to turn on.
  • To avoid fuel spillage and overfilling, do not "top off" the fuel tank after filling.

NOTE:

When the fuel nozzle "clicks" or shuts off the fuel tank is full.

WARNING!

  • Never have any smoking materials lit in or near the vehicle when the gas cap is removed or the tank is being filled.
  • Never add fuel to the vehicle when the engine is running. This is in violation of most state and federal fire regulations and may cause the MIL to turn on.

NOTE:

Tighten the gas cap a quarter turn until you hear one click. This is an indication that the cap is properly tightened.

If the gas cap is not tightened properly, the Malfunction Indicator Light will come on. Be sure the gas cap is tightened every time the vehicle is refueled.

WARNING!

A fire may result if gasoline is pumped into a portable container that is inside of a vehicle. You could be burned. Always place gas containers on the ground while filling.

LOOSE FUEL FILLER CAP MESSAGE

RAM 4500 Chassis Cab (2021) - LOOSE FUEL FILLER CAP MESSAGE - 1

If the vehicle diagnostic system determines that the fuel filler cap is loose, improperly installed, or damaged, a loose gASCAP indicator

will display in the instrument cluster telltale display area → page 90. Tighten the fuel filler cap properly and push the RIGHT button to turn off the message. If the problem continues, the message will appear the next time the vehicle is started.

REFUELING THE VEHICLE — DIESEL ENGINE

CAUTION!

To avoid fuel spillage and overfilling, do not "top off" the fuel tank after filling.

NOTE:

  • When the fuel nozzle "clicks" or shuts off, the fuel tank is full.
  • Tighten the fuel filler cap until you hear a "clicking" sound. This is an indication that the fuel filler cap is properly tightened.
  • Make sure that the fuel filler cap is tightened each time the vehicle is refueled.

WARNING!

A fire may result if gasoline is pumped into a portable container that is inside of a vehicle. You could be burned. Always place gas containers on the ground while filling.

DIESEL EXHAUST FLUID

Your vehicle is equipped with a Selective Catalytic Reduction (SCR) system to meet the very stringent diesel emissions standards required by the Environmental Protection Agency.

The purpose of the SCR system is to reduce levels of NOx (oxides of nitrogen emitted from engines) that are harmful to our health and the environment to a near-zero level. A small quantity of Diesel Exhaust Fluid (DEF) is injected into the exhaust upstream of a catalyst where, when vaporized, it converts smog-forming nitrogen oxides (NOx) into harmless nitrogen (N2) and water vapor (H2O), two natural components of the air we breathe. You can operate with the comfort that your vehicle is contributing to a cleaner, healthier world environment for this and generations to come.

System Overview

This vehicle is equipped with a Diesel Exhaust Fluid (DEF) injection system and a Selective Catalytic Reduction (SCR) catalyst to meet the emission requirements.

The DEF injection system consists of the following components:

  • DEF tank
  • DEF pump
  • DEF injector
    • Electronically-heated DEF lines
  • DEF control module
  • NOx sensors
    • Temperature sensors
  • SCR catalyst
    • UQS Sensor

For system messages and warnings ↩ page 90.

NOTE:

  • Your vehicle is equipped with a DEF injection system. You may occasionally hear an audible clicking noise. This is normal operation.
  • The DEF pump will run for a period of time after engine shutdown to purge the DEF system. This is normal operation.

Diesel Exhaust Fluid Storage

Diesel Exhaust Fluid (DEF) is considered a very stable product with a long shelf life. If DEF is kept in temperatures between 10° and 90°F (-12° and 32°C), it will last a minimum of one year.

DEF is subject to freezing at the lowest temperatures. For example, DEF may freeze at temperatures at or below 12^ F ( -11^ C). The system has been designed to operate in this environment.

NOTE:

When working with DEF, it is important to know that:

- Any containers or parts that come into contact with DEF must be DEF compatible (plastic or stainless steel). Copper, brass, aluminum, iron

or non-stainless steel should be avoided as they are subject to corrosion by DEF.

- If DEF is spilled, it should be wiped up completely.

Adding Diesel Exhaust Fluid (DEF)

The DEF gauge (located on the instrument cluster) will display the level of DEF remaining in the tank ➤ page 90.

NOTE:

  • Driving conditions (altitude, vehicle speed, load, etc.) will effect the amount of DEF that is used in your vehicle.
  • Another factor is that outside temperature can affect DEF consumption. In cold conditions, 12°F (-11°C) and below, the DEF gauge needle can stay on a fixed position and may not move for extended periods of time. This is a normal function of the system.
  • There is an electric heater inside the DEF tank that automatically works when necessary. And if the DEF supply does freeze, the truck will operate normally until it thaws.

DEF Fill Procedure

NOTE:

For the correct fluid type ➤ page 440.

Remove cap from DEF tank (located on drivers side of the vehicle or in fuel door).

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image Technical diagram showing mechanical assembly with numbered components and a label A0634000128US

DEF Filler Cap And Fuel Fill Chassis Cab Models

1 – Diesel Exhaust Fluid (DEF) Fill Location
2 – Diesel Fuel Fill Location

NOTE:

  • The DEF gauge may take up to five seconds to update after adding a gallon or more of Diesel Exhaust Fluid (DEF) to the DEF tank. If you have a fault related to the DEF system, the gauge may not update to the new level. See an authorized dealer for service.
  • The DEF gauge may also not immediately update after a refill if the temperature of the DEF fluid is below 39^ F ( 4^ C). The DEF tank heater will possibly warm up the DEF fluid and allow the gauge to update after a period of run time. Under very cold conditions, it is possible that the gauge may not reflect the new fill level for several drives.
  • At 40^ F ( 4^ C) you could see some increase in the DEF gauge due to the tank thawing. The gauge and level sensor are working properly and is just updating with proper thawed DEF.
  • Excessive overfilling of the DEF tank can result in a MIL lamp/fault code and inaccurate level readings.

Refilling With Nozzles

You can fill up at any DEF distributor.

Proceed as follows:

  • Insert the DEF nozzle in the filler, start refilling and stop refilling at the first shut-off (the shut-off indicates that the DEF tank is full). DO NOT proceed with the refilling, to prevent spillage of DEF.
  • Extract the nozzle.

Refilling With Containers

Proceed as follows:

  • Check the expiration date.
  • Read the advice for use on the label before pouring the content of the bottle into the DEF tank.
  • After the indication appears on the instrument panel display ➔ page 90 fill the DEF tank with no more than 6 Gallons (22 liters).

CAUTION!

  • To avoid DEF spillage, and possible damage to the DEF tank from overfilling, do not "top off" the DEF tank after filling.
  • DO NOT OVERFILL. DEF will freeze below 12°F (-11°C). The DEF system is designed to work in temperatures below the DEF freezing point, however, if the tank is overfilled and freezes, the system could be damaged.
  • When DEF is spilled, clean the area immediately with water and use an absorbent material to soak up the spills on the ground
  • Do not attempt to start your engine if DEF is accidentally added to the diesel fuel tank as it can result in severe damage to your engine, including but not limited to failure of the fuel pump and injectors.

(Continued)

CAUTION! (Continued)

- Never add anything other than DEF to the tank – especially any form of hydrocarbon such as diesel fuel, fuel system additives, gasoline, or any other petroleum-based product. Even a very small amount of these less than 100 parts per million or less than 1 oz. per 78 gallons (295 liters) will contaminate the entire DEF system and will require replacement. If owners use a container, funnel or nozzle when refilling the tank, it should either be new or one that is has only been used for adding DEF. Mopar provides an attachable nozzle with its DEF for this purpose.

Stop filling the DEF tank immediately if DEF splashes or wells back in the filler neck.

Reinstall cap onto DEF filler tube.

Filling The Def Tank In Cold Climates

Since DEF will begin to freeze at 12^ F ( -11^ C), your vehicle is equipped with an automatic DEF heating system. This allows the DEF injection system to operate properly at temperatures below 12^ F ( -11^ C). If your vehicle is not in operation for an extended period of time with temperatures below 12^ F ( -11^ C), the DEF in the tank may freeze. If the tank is overfilled and freezes, it could be damaged. Therefore, do not overfill the DEF tank.

Extra care should be taken when filling with portable containers to avoid overfilling. Note the level of the DEF gauge in your instrument cluster. You may safely add a maximum of 2 gallons (7.5 liters) of DEF from portable containers when your DEF gauge is reading 12 full.

VEHICLE LOADING

GROSS VEHICLE WEIGHT RATING (GVWR)

The GVWR is the total permissible weight of your vehicle including driver, passengers, vehicle, options and cargo. The label also specifies maximum capacities of front and rear axle systems (GAWR). Total load must be limited so GVWR and front and rear GAWR are not exceeded.

PAYLOAD

The payload of a vehicle is defined as the allowable load weight a truck can carry, including the weight of the driver, all passengers, options and cargo.

GROSS AXLE WEIGHT RATING (GAWR)

The GAWR is the maximum permissible load on the front and rear axles. The load must be distributed in the cargo area so that the GAWR of each axle is not exceeded.

Each axle GAWR is determined by the components in the system with the lowest load carrying capacity (axle, springs, tires or wheels). Heavier axles or suspension components sometimes specified by purchasers for increased durability does not necessarily increase the vehicle's GVWR.

TIRE SIZE

The tire size on the Vehicle Certification Label represents the actual tire size on your vehicle. Replacement tires must be equal to the load capacity of this tire size.

RIM SIZE

This is the rim size that is appropriate for the tire size listed.

INFLATION PRESSURE

This is the cold tire inflation pressure for your vehicle for all loading conditions up to full GAWR.

CURB WEIGHT

The curb weight of a vehicle is defined as the total weight of the vehicle with all fluids, including vehicle fuel, at full capacity conditions, and with no occupants or cargo loaded into the vehicle. The front and rear curb weight values are determined by weighing your vehicle on a commercial scale before any occupants or cargo are added.

LOADING

The actual total weight and the weight of the front and rear of your vehicle at the ground can best be determined by weighing it when it is loaded and ready for operation.

The entire vehicle should first be weighed on a commercial scale to ensure that the GVWR has not been exceeded. The weight on the front and rear of the vehicle should then be determined separately to be sure that the load is properly distributed over the front and rear axles. Weighing the vehicle may show that the GAWR of either the front or rear axle has been exceeded but the total load is within the specified GVWR. If so, weight must be shifted from front to rear or rear to front as appropriate until the specified weight limitations are met. Store the heavier items down low and be sure that the weight is distributed equally. Stow all loose items securely before driving.

Improper weight distributions can have an adverse effect on the way your vehicle steers and handles and the way the brakes operate.

CAUTION!

Do not load your vehicle any heavier than the GVWR or the maximum front and rear GAWR. If you do, parts on your vehicle can break, or it can change the way your vehicle handles. This could cause you to lose control. Also overloading can shorten the life of your vehicle.

TRAILER TOWING

In this section you will find safety tips and information on limits to the type of towing you can reasonably do with your vehicle. Before towing a trailer, carefully review this information to tow your load as efficiently and safely as possible.

To maintain the New Vehicle Limited Warranty coverage, follow the requirements and recommendations in this manual concerning vehicles used for trailer towing.

COMMON TOWING DEFINITIONS

The following trailer towing related definitions will assist you in understanding the following information:

Gross Vehicle Weight Rating (GVWR)

The GVWR is the total allowable weight of your vehicle. This includes driver, passengers, cargo and tongue weight. The total load must be limited so that you do not exceed the GVWR page 199.

Gross Trailer Weight (GTW)

The GTW is the weight of the trailer plus the weight of all cargo, consumables and equipment (permanent or temporary) loaded in or on the trailer in its "loaded and ready for operation" condition.

The recommended way to measure GTW is to put your fully loaded trailer on a vehicle scale. The entire weight of the trailer must be supported by the scale.

WARNING!

If the gross trailer weight is 5,000 lbs (2,267 kg) or more, it is recommended to use a weight-distributing hitch to ensure stable handling of your vehicle. If you use a standard weight-carrying hitch, you could lose control of your vehicle and cause a collision.

Gross Combination Weight Rating (GCWR)

The GCWR is the total allowable weight of your vehicle and trailer when weighed in combination.

Gross Axle Weight Rating (GAWR)

The GAWR is the maximum capacity of the front and rear axles. Distribute the load over the front and rear axles evenly. Make sure that you do not exceed either front or rear GAWR ➔ page 199.

WARNING!

It is important that you do not exceed the maximum front or rear GAWR. A dangerous driving condition can result if either rating is exceeded. You could lose control of the vehicle and have a collision.

Tongue Weight (TW)

The TW is the downward force exerted on the hitch ball by the trailer. You must consider this as part of the load on your vehicle.

Trailer Frontal Area

The frontal area is the maximum height multiplied by the maximum width of the front of a trailer.

Trailer Sway Control (TSC)

The TSC can be a mechanical telescoping link that can be installed between the hitch receiver and the trailer tongue that typically provides adjustable friction associated with the telescoping motion to dampen any unwanted trailer swaying motions while traveling.

If equipped, the electronic TSC recognizes a swaying trailer and automatically applies individual wheel brakes and/or reduces engine power to attempt to eliminate the trailer sway.

Weight-Carrying Hitch

A weight-carrying hitch supports the trailer tongue weight, just as if it were luggage located at a hitch ball or some other connecting point of the vehicle. These kinds of hitches are commonly used to tow small and medium sized trailers.

Weight-Distributing Hitch

A weight-distributing hitch system works by applying leverage through spring (load) bars. They are typically used for heavier loads to distribute trailer tongue weight to the tow vehicle's front axle and the trailer axle(s). When used in accordance with the manufacturer's directions, it provides for a more level ride, offering more consistent steering and brake control, thereby enhancing towing safety. The addition of a friction/hydraulic sway control also dampens sway caused by traffic and crosswinds and contributes positively to tow vehicle and trailer stability. Trailer Sway Control (TSC) and a weight distributing (load equalizing) hitch are recommended for heavier Tongue Weights (TW) and may be required depending on vehicle and trailer configuration/loading to comply with GAWR requirements.

WARNING!

  • An improperly adjusted weight distributing hitch system may reduce handling, stability and braking performance and could result in a collision.
  • Weight distributing systems may not be compatible with surge brake couplers. Consult with your hitch and trailer manufacturer or a reputable Recreational Vehicle dealer for additional information.

RAM 4500 Chassis Cab (2021) - WARNING! - 1
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With Weight-Distributing Hitch (Correct)

RAM 4500 Chassis Cab (2021) - WARNING! - 2

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Without Weight-Distributing Hitch (Incorrect)

RAM 4500 Chassis Cab (2021) - WARNING! - 3
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Improper Adjustment Of Weight-Distributing Hitch (Incorrect)

  1. Position the truck to be ready to connect to the trailer (do not connect the trailer).
  2. Measure the height of the top of the front wheel opening on the fender to ground, this is height H1.

RAM 4500 Chassis Cab (2021) - Recommended Distribution Hitch Adjustment - 1

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Measuring Height (H)

  1. Attach the trailer to the vehicle without the weight distribution bars connected.
  2. Measure the height of the top of the front wheel opening on the fender to ground, this is height H2.

  3. Install and adjust the tension in the weight distributing bars per the manufacturers' recommendations so that the height of the front fender is approximately (H2-H1)/2+H1 (about 1/2 the difference between H2 and H1 above normal ride height [H1]).

  4. Perform a visual inspection of the trailer and weight distributing hitch to confirm manufacturers' recommendations have been met.
Measurement ExampleExample 2500/3500 Height (mm)
H1 1,030
H2 1,058
H2-H1 28
(H2-H1)/2 14
(H2-H1)/2 + H1 1,044

NOTE:

For all towing conditions, we recommend towing with TOW/HAUL mode engaged.

Fifth-Wheel Hitch

The fifth-wheel hitch is a special high platform with a coupling that mounts over the rear axle of the tow vehicle in the truck bed. It connects a vehicle and fifth-wheel trailer with a coupling king pin.

Your truck may be equipped with a fifth wheel hitch option. Refer to the separately provided fifth wheel hitch safety, care, assembly, and operating instructions.

Gooseneck Hitch

The gooseneck hitch employs a pivoted coupling arm which attaches to a ball mounted in the bed of a pickup truck. The coupling arm connects to the hitch mounted over the rear axle in the truck bed.

The following chart provides the industry standard for the maximum trailer weight a given trailer hitch class can tow and should be used to assist you in selecting the correct trailer hitch for your intended towing condition.

Trailer Hitch Classification Definitions
Class Max. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1,587 kg)
Class III - Heavy Duty 6,000 lbs (2,722 kg)
Class IV - Extra Heavy Duty 10,000 lbs (4,535 kg)
Fifth Wheel/Gooseneck Greater than 10,000 lbs (4,535 kg)
Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” for the Maximum Gross Trailer Weight (GTW) towable for your given drivetrain.
All trailer hitches should be professionally installed on your vehicle.

For trailer towing information (maximum trailer weight ratings) refer to the following website addresses:

  • ramtrucks.com/en/towing_guide/
  • ramtruck.ca (Canada)
  • rambodybuilder.com

TRAILER AND TONGUE WEIGHT

Never exceed the maximum tongue weight stamped on your bumper or trailer hitch.

RAM 4500 Chassis Cab (2021) - TRAILER AND TONGUE WEIGHT - 1

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Weight Distribution

CAUTION!

Always load a trailer with 60% of the weight in the front of the trailer. This places 10% of the GTW on the tow hitch of your vehicle. Loads balanced over the wheels or heavier in the rear can cause the trailer to sway severely side to side which will cause loss of control of the vehicle and trailer. Failure to load trailers heavier in front is the cause of many trailer collisions.

Consider the following items when computing the weight on the rear axle of the vehicle:

  • The tongue weight of the trailer.
  • The weight of any other type of cargo or equipment put in or on your vehicle.
  • The weight of the driver and all passengers.

NOTE:

Remember that everything put into or on the trailer adds to the load on your vehicle. Also, additional factory-installed options or dealer-installed options must be considered as part of the total load on your vehicle. For the maximum combined weight of occupants and cargo for your vehicle → page 411.

TOWING REQUIREMENTS

To promote proper break-in of your new vehicle drivetrain components, the following guidelines are recommended.

CAUTION!

  • Do not tow a trailer at all during the first 500 miles (805 km) the new vehicle is driven. The engine, axle or other parts could be damaged.
  • Then, during the first 500 miles (805 km) that a trailer is towed, do not drive over 50 mph (80 km/h) and do not make starts at full throttle. This helps the engine and other parts of the vehicle wear in at the heavier loads.

Perform the maintenance listed in the "Scheduled Servicing" ➕ page 353. When towing a trailer, never exceed the GAWR or GCWR ratings.

WARNING!

  • Make certain that the load is secured in the trailer and will not shift during travel. When trailering cargo that is not fully secured, dynamic load shifts can occur that may be difficult for the driver to control. You could lose control of your vehicle and have a collision.
  • When hauling cargo or towing a trailer, do not overload your vehicle or trailer. Overloading can cause a loss of control, poor performance or damage to brakes, axle, engine, transmission, steering, suspension, chassis structure or tires.
  • Safety chains must always be used between your vehicle and trailer. Always connect the chains to the hook retainers of the vehicle hitch. Cross the chains under the trailer tongue and allow enough slack for turning corners.
  • Vehicles with trailers should not be parked on a grade. When parking, apply the parking brake on the tow vehicle. Put the tow vehicle transmission in PARK. For four-wheel drive vehicles, make sure the transfer case is not in NEUTRAL. Always, block or "chock" the trailer wheels.

WARNING! (Continued)

• GCWR must not be exceeded.
- Total weight must be distributed between the tow vehicle and the trailer such that the following four ratings are not exceeded:
• GVWR
• GTW
• GAWR
- Tongue weight rating for the trailer hitch utilized.

Towing Requirements — Tires

  • Do not attempt to tow a trailer while using a compact spare tire.
  • Do not drive more than 50 mph (80 km/h) when towing while using a full size spare tire.
  • Proper tire inflation pressures are essential to the safe and satisfactory operation of your vehicle.
  • Check the trailer tires for proper tire inflation pressures before trailer usage.

  • Check for signs of tire wear or visible tire damage before towing a trailer.

  • For the proper tire replacement procedures. Replacing tires with a higher load carrying capacity will not increase the vehicle's GVWR and GAWR limits.
  • For further information ↩ page 406.

Towing Requirements — Trailer Brakes

  • Do not interconnect the hydraulic brake system or vacuum system of your vehicle with that of the trailer. This could cause inadequate braking and possible personal injury.
  • An electronically actuated trailer brake controller is required when towing a trailer with electronically actuated brakes. When towing a trailer equipped with a hydraulic surge actuated brake system, an electronic brake controller is not required.
  • Trailer brakes are recommended for trailers over 1,000 lbs (453 kg) and required for trailers in excess of 2,000 lbs (907 kg).

WARNING!

  • Do not connect trailer brakes to your vehicle's hydraulic brake lines. It can overload your brake system and cause it to fail. You might not have brakes when you need them and could have an accident.
  • Towing any trailer will increase your stopping distance. When towing, you should allow for additional space between your vehicle and the vehicle in front of you. Failure to do so could result in an accident.

CAUTION!

If the trailer weighs more than 1,000 lbs (453 kg) loaded, it should have its own brakes and they should be of adequate capacity. Failure to do this could lead to accelerated brake lining wear, higher brake pedal effort, and longer stopping distances.

Integrated Trailer Brake Module — If Equipped

Your vehicle may have an Integrated Trailer Brake Module (ITBM) for Electric and Electric Over Hydraulic (EOH) trailer brakes.

NOTE:

This module has been designed and verified with electric trailer brakes and new EOH systems. Some previous EOH systems may not be compatible with ITBM.

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Integrated Trailer Brake Module (ITBM)

1 - GAIN - Adjustment Button
2 - GAIN + Adjustment Button
3 – Manual Brake Control Lever

The user interface consists of the following:

Manual Brake Control Lever

Slide the manual brake control lever to the left to activate power to the trailer's electric brakes independent of the tow vehicle's brakes. If the manual brake control lever is activated while the brake is also applied, the greater of the two inputs determines the power sent to the trailer brakes.

The trailer and the vehicle's stop lamps will come on when braking normally with the vehicle brake pedal. Only the trailer stop lamps will come on when the manual brake control lever is applied.

Trailer Brake Status Indicator Light

This light indicates the trailer electrical connection status.

If no electrical connection is detected after the ignition is turned on, pushing the GAIN adjustment button or sliding the manual brake control lever will display the GAIN setting for 10 seconds and the "Trailer Brake Status Indicator Light" will not be displayed.

If a fault is detected in the trailer wiring or the Integrated Trailer Brake Module (ITBM), the "Trailer Brake Status Indicator Light" will flash.

GAIN Adjustment Buttons (+/-)

Pushing these buttons will adjust the brake control power output to the trailer brakes in 0.5 increments. The GAIN setting can be increased to a maximum of 10 or decreased to a minimum of 0 (no trailer braking).

GAIN

The GAIN setting is used to set the trailer brake control for the specific towing condition and should be changed as towing conditions change. Changes to towing conditions include trailer load, vehicle load, road conditions and weather.

Adjusting GAIN

NOTE:

This should only be performed in a traffic-free environment at speeds of approximately 20–25 mph (30–40 km/h).

  1. Make sure the trailer brakes are in good working condition, functioning normally and properly adjusted. See a trailer dealer if necessary.
  2. Hook up the trailer and make the electrical connections according to the trailer manufacturer's instructions.
  3. When a trailer with electric/EOH brakes is plugged in, the trailer connected message should appear in the instrument cluster display (if the connection is not recognized by the ITBM, braking functions will not be available), the GAIN setting will illuminate and the correct type of trailer must be selected from the instrument cluster display options.
  4. Push the UP or DOWN button on the steering wheel until "TRAILER TOW" appears on the screen.
  5. Push the RIGHT arrow on the steering wheel to enter "TRAILER TOW".

  6. Push the UP or DOWN buttons until the Trailer Brake Type appears on the screen.

  7. Push the RIGHT arrow and then push the UP or DOWN buttons until the proper Trailer Brake Type appears on the screen.
  8. In a traffic-free environment, tow the trailer on a dry, level surface at a speed of 20–25 mph (30–40 km/h) and squeeze the manual brake control lever completely.
  9. If the trailer wheels lockup (indicated by squealing tires), reduce the GAIN setting; if the trailer wheels turn freely, increase the GAIN setting.

Repeat steps 8 and 9 until the GAIN setting is at a point just below trailer wheel lockup. If towing a heavier trailer, trailer wheel lockup may not be attainable even with the maximum GAIN setting of 10.

Light Electric HeavyElectric Light EOH Heavy EOH
Type of Trailer Brakes ElectricTrailer Brakes Electric TrailerBrakesElectric over Hydraulic Trailer Brakes
Load*Under 10,000 lbs (4,536 kg)*Above 10,000 lbs (4,536 kg) *Under 10,000 lbs (4,536 kg) *Above 10,000 lbs (4,536 kg)

* The suggested selection depends and may change depending on the customer preferences for braking performance. Condition of the trailer brakes, driving and road state may also affect the selection.

Display Messages

The trailer brake control interacts with the instrument cluster display. Display messages, along with a single chime, will be displayed when a malfunction is determined in the trailer connection, trailer brake control, or on the trailer ➕ page 90.

WARNING!

Connecting a trailer that is not compatible with the ITBM system may result in reduced or complete loss of trailer braking. There may be a increase in stopping distance or trailer instability which could result in personal injury.

CAUTION!
Connecting a trailer that is not compatible with the ITBM system may result in reduced or complete loss of trailer braking. There may be a increase in stopping distance or trailer instability which could result in damage to your vehicle, trailer, or other property.

NOTE:

  • An aftermarket controller may be available for use with trailers with air or EOH trailer brake systems. To determine the type of brakes on your trailer and the availability of controllers, check with your trailer manufacturer or dealer.
  • Removal of the ITBM will cause errors and it may cause damage to the electrical system and electronic modules of the vehicle. See an authorized dealer if an aftermarket module is to be installed.

Towing Requirements — Trailer Lights And Wiring

Whenever you pull a trailer, regardless of the trailer size, stoplights and turn signals on the trailer are required for motoring safety.

The Trailer Tow Package may include a four- and seven-pin wiring harness. Use a factory approved trailer harness and connector.

NOTE:

Do not cut or splice wiring into the vehicle's wiring harness.

The electrical connections are all complete to the vehicle but you must mate the harness to a trailer connector. Refer to the following illustrations.

210 STARTING AND OPERATING

NOTE:

  • Disconnect trailer wiring connector from the vehicle before launching a boat (or any other device plugged into vehicle's electrical connect) into water.
  • Be sure to reconnect once clear from water area.

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Four-Pin Connector

1 - Ground
2 - Park
3 – Left Stop/Turn
4 - Right Stop/Turn

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Seven-Pin Connector

1 - Backup Lamps
2 – Running Lamps
3 – Left Stop/Turn
4 - Ground
5 - Battery
6 - Right Stop/Turn
7 - Electric Brakes

Trailer Light Check

This feature will run the trailer lights through a sequence to check the trailer light function. It is available in the instrument cluster under the Trailer Tow menu → page 94.

When activated the feature will enable all of the exterior lights sequentially for up to five minutes allowing time to walk around and verify functionality. The following exterior lights will remain on for the entirety of the sequence:

  • Park/Running Lamps
  • Side Marker Lamps (if equipped)
  • License Lamp
    • Signature Lamp (if equipped)
  • Low Beams
  • Fog Lamps (if equipped)
    • Daytime Running Lamps

During this time the following lights will sequence, each activating for three seconds:

  1. Brake and CHMSL (third brake light)
  2. Left turn signal
  3. Right turn signal
  4. Reverse Lamps
  5. High Beam

This light check sequence will continue for a total of five minutes.

The sequence will only activate if the following conditions are met:

  • Vehicle is equipped with the Trailer Tow Package
  • Vehicle is in PARK
  • Vehicle is not in motion
  • Ignition in ACC or RUN
  • Remote start is inactive
  • Brakes are not applied
  • Left turn signal is not applied
    • Right turn signal not applied
  • Hazard switch is not applied

The sequence will cancel if any of the following conditions occur:

  • Brakes are applied
    ● Vehicle is shifted from PARK
    ● Vehicle is no longer stationary

  • Left turn signal activated from stalk
    ● Right turn signal is activated from stalk

  • Hazard switch is activated
  • Any button on the key fob is pushed
  • Ignition button is pushed
    ● High Beam stalk position is changed
  • Sequence is canceled in the instrument cluster

TOWING TIPS

Before setting out on a trip, practice turning, stopping, and backing up the trailer in an area located away from heavy traffic.

Automatic Transmission

The DRIVE range can be selected when towing. The transmission controls include a drive strategy to avoid frequent shifting when towing. However, if frequent shifting does occur while in DRIVE, select TOW/HAUL mode or select a lower gear range (using the Electronic Range Select (ERS) shift control).

NOTE:

Using TOW/HAUL mode or selecting a lower gear range (using the ERS shift control) while operating the vehicle under heavy loading conditions will improve performance and extend transmission life by reducing excessive shifting and heat build-up. This action will also provide better engine braking.

Six-Speed Automatic Transmission Only

When towing a loaded trailer up steep grades at low speeds (20 mph [32 km/h] or below), holding your vehicle in FIRST gear (using the ERS shift control) can help to avoid transmission overheating.

If you regularly tow a trailer for more than 45 minutes of continuous operation, then change the automatic transmission fluid and filter(s) as specified for "police, taxi, fleet, or frequent trailer towing." ➕ page 354.

NOTE:

Check the automatic transmission fluid level before towing (Six-speed automatic only).

Tow/Haul Mode

To reduce potential for automatic transmission overheating, activate TOW/HAUL mode when driving in hilly areas, or select a lower gear range (using the Electronic Range Select (ERS) shift control) on more severe grades.

Cruise Control — If Equipped

  • Do not use on hilly terrain or with heavy loads.
  • When using the Cruise Control, if you experience speed drops greater than 10 mph (16 km/h), disengage until you can get back to cruising speed.
  • Use Cruise Control in flat terrain and with light loads to maximize fuel efficiency.

SNOWPLOW — IF EQUIPPED

Snowplow Prep Packages are available as a factory installed option. These packages include components necessary to equip your vehicle with a snowplow.

NOTE:

Before installation of a snowplow it is highly recommended that the owner/installer obtain and follow the recommendations contained within the current Body Builders Guide. See an authorized dealer, installer or snowplow manufacturer for this information. There are unique electrical systems that must be connected to properly ensure operator safety and prevent overloading vehicle systems.

WARNING!

Attaching a snowplow to this vehicle could adversely affect performance of the airbag system in a collision. Do not expect that the airbag will perform as described earlier in this manual.

CAUTION!

The "Lamp Out" indicator could illuminate if exterior lamps are not properly installed.

BEFORE PLOWING

  • Check the hydraulic system for leaks and proper fluid level.
  • Check the mounting bolts and nuts for proper tightness.
  • Check the runners and cutting edge for excessive wear. The cutting edge should be 14 to 12 inches (6 cm to 1.2 cm) above ground in snow plowing position.
  • Check that snowplow lighting is connected and functioning properly.

SNOWPLOW PREP PACKAGE MODEL AVAILABILITY

For Information about snowplow applications visit www.ramtrucks.com or refer to the current Body Builders Guide.

  1. The maximum number of occupants in the truck should not exceed two.
  2. The total GVWR or the Front GAWR or the Rear GAWR should never be exceeded.
  3. Cargo capacity will be reduced by the addition of options or passengers, etc.

The loaded vehicle weight, including the snowplow system, all aftermarket accessories, driver, passengers, options, and cargo, must not exceed either the Gross Vehicle Weight Rating (GVWR) or Gross Axle Weight Rating (GAWR). These weights are specified on the Safety Compliance Certification Label on the driver's side door opening.

NOTE:

Detach the snowplow when transporting passengers.

Vehicle front end wheel alignment was set to specifications at the factory without consideration for the weight of the plow. Front end toe-in should be checked and reset if necessary at the beginning and end of the snowplow season. This will help prevent uneven tire wear.

The blade should be lowered whenever the vehicle is parked.

Maintain and operate your vehicle and snowplow equipment following the recommendations provided by the specific snowplow manufacturer.

OVER THE ROAD OPERATION WITH SNOWPLOW ATTACHED

The blade restricts air flow to the radiator and causes the engine to operate at higher than normal temperatures. Therefore, when transporting the plow, angle the blade completely and position it as low as road or surface conditions permit. Do not exceed 40 mph (64 km/h). The operator should always maintain a safe stopping distance and allow adequate passing clearance.

OPERATING TIPS

Under ideal snow plowing conditions, 20 mph (32 km/h) should be maximum operating speed. The operator should be familiar with the area and surface to be cleaned. Reduce speed and use extreme caution when plowing unfamiliar areas or under poor visibility.

GENERAL MAINTENANCE

Snowplows should be maintained in accordance with the plow manufacturer's instructions.

Keep all snowplow electrical connections and battery terminals clean and free of corrosion.

When plowing snow, to avoid transmission and drivetrain damage, the following precautions should be observed.

  • Operate with transfer case in 4L when plowing small or congested areas where speeds are not likely to exceed 15 mph (24 km/h). At higher speeds operate in 4WD High.
  • Vehicles with automatic transmissions should use 4WD Low range when plowing deep or heavy snow for extended periods of time to avoid transmission overheating.
  • Do not shift the transmission unless the engine has returned to idle and wheels have stopped. Make a practice of stepping on the brake pedal while shifting the transmission.

RECREATIONAL TOWING (BEHIND MOTORHOME)

TOWING THIS VEHICLE BEHIND ANOTHER VEHICLE

Towing ConditionWheels OFF The GroundTwo-Wheel Drive ModelsFour-Wheel Drive Models
Flat Tow NONE NOT ALLOWEDSee Instructions• Automatic transmission in PARK• Transfer case in NEUTRAL (N)• Tow in forward direction
Dolly TowFront NOT ALLOWED NOT ALLOWED
Rear OK NOT ALLOWED
On Trailer ALL OK OK

NOTE:
When towing your vehicle, always follow applicable state and provincial laws. Contact state and provincial Highway Safety offices for additional details.

RECREATIONAL TOWING — TWO-WHEEL DRIVE MODELS

DO NOT flat tow this vehicle. Damage to the drivetrain will result.

Recreational towing (for two-wheel drive models) is allowed ONLY if the rear wheels are OFF the ground. This may be accomplished using a tow dolly or vehicle trailer. If using a tow dolly, follow this procedure:

  1. Properly secure the dolly to the tow vehicle, following the dolly manufacturer's instructions.
  2. Drive the rear wheels onto the tow dolly.
  3. Firmly apply the parking brake. Place automatic transmission in PARK.
  4. Properly secure the rear wheels to the dolly, following the dolly manufacturer's instructions.
  5. Turn the ignition to the OFF position and remove the key fob.
  6. Install a suitable clamping device, designed for towing, to secure the front wheels in the straight position.

CAUTION!

  • Towing with the rear wheels on the ground will cause severe transmission damage. Damage from improper towing is not covered under the New Vehicle Limited Warranty.
  • Do not disconnect the driveshaft because fluid may leak from the transmission, causing damage to internal parts.

RECREATIONAL TOWING — FOUR-WHEEL DRIVE MODELS

NOTE:

Both the manual shift and electronically shifted transfer cases must be shifted into N (Neutral) for recreational towing. Automatic transmissions must be shifted into PARK for recreational towing. Refer to the following for the proper transfer case N (Neutral) shifting procedure for your vehicle.

CAUTION!

  • DO NOT dolly tow any four-wheel drive vehicle. Towing with only one set of wheels on the ground (front or rear) will cause severe transmission and/or transfer case damage. Tow with all four wheels either ON the ground, or OFF the ground (using a vehicle trailer).
  • Tow only in the forward direction. Towing this vehicle backwards can cause severe damage to the transfer case.
  • Before recreational towing, the transfer case must be in NEUTRAL. To be certain the transfer case is fully in NEUTRAL, perform the procedure outlined under "Shifting Into NEUTRAL". Internal transmission damage will result, if the transfer case is not in NEUTRAL during towing.
  • The transmission must be placed in PARK for recreational towing.
  • Towing this vehicle in violation of the above requirements can cause severe transmission and/or transfer case damage. Damage from improper towing is not covered under the New Vehicle Limited Warranty.

(Continued)

CAUTION! (Continued)

  • Do not disconnect the rear driveshaft because fluid will leak from the transfer case, causing damage to internal parts.
  • Do not use a bumper-mounted clamp-on tow bar on your vehicle. The bumper face bar will be damaged.

Shifting Into N (Neutral)

Use the following procedure to prepare your vehicle for recreational towing.

WARNING!

You or others could be injured or killed if you leave the vehicle unattended with the transfer case in the N (NEUTRAL) position without first fully engaging the parking brake. The transfer case N (NEUTRAL) position disengages both the front and rear driveshafts from the powertrain, and will allow the vehicle to roll, even if the automatic transmission is in PARK (or manual transmission is in gear). The parking brake should always be applied when the driver is not in the vehicle.

CAUTION!

It is necessary to follow these steps to be certain that the transfer case is fully in NEUTRAL (N) before recreational towing to prevent damage to internal parts.

  1. Bring the vehicle to a complete stop on level ground, with the engine running. Firmly apply the parking brake.
  2. Shift the transmission to NEUTRAL.
  3. Press and hold the brake pedal.
  4. Shift the transfer case into N (Neutral):

- With manual shift transfer case, shift the transfer case lever into N (Neutral).

- With electronically shifted transfer case, push and hold the transfer case N (Neutral) button. Some models have a small, recessed "N" button (at the center of the transfer case switches) that must be pressed using a ballpoint pen or similar object. Other models have a rectangular N (Neutral) switch, below the rotary transfer case control knob. The N (Neutral) indicator light will blink while the shift is in

progress. The light will stop blinking (stay on solid) when the shift to N (Neutral) is complete. After the shift is completed and the N (Neutral) light stays on, release the N (Neutral) button.

  1. Release the parking brake.
  2. Shift the transmission into REVERSE.
  3. Release the brake pedal for five seconds and ensure that there is no vehicle movement.
  4. Repeat steps 6 and 7 with automatic transmission in DRIVE.
  5. Shift the transmission to NEUTRAL. Firmly apply the parking brake. Turn off the engine. For vehicles with Keyless Enter-N-Go, push and hold the ENGINE START/STOP button until the engine shuts off.
  6. Shift the transmission into PARK.
  7. Place the ignition in the OFF mode, and remove the key fob.
  8. Attach the vehicle to the tow vehicle using a suitable tow bar.
  9. Release the parking brake.

NOTE:

With electronically shifted transfer case:

  • Steps 2 through 3 are requirements that must be met before pushing the N (Neutral) button, and must continue to be met until the shift has been completed. If any of these requirements are not met before pushing the N (Neutral) button or are no longer met during the shift, the N (Neutral) indicator light will flash continuously until all requirements are met or until the N (Neutral) button is released.
  • The ignition must be in the ON/RUN mode for a shift to take place and for the position indicator lights to be operable. If the ignition is not in the ON/RUN mode, the shift will not take place and no position indicator lights will be on or flashing.
  • A flashing N (Neutral) position indicator light indicates that shift requirements have not been met.

Shifting Out Of N (Neutral)

Use the following procedure to prepare your vehicle for normal usage:

  1. Bring the vehicle to a complete stop, leaving it connected to the tow vehicle.
  2. Firmly apply the parking brake.
  3. Press and hold the brake pedal.
  4. Start the engine, and shift the transmission into NEUTRAL.

  5. With manual shift transfer case, shift the transfer case lever to the desired position.

  6. With electronically shifted transfer case with rotary selector switch, push and hold the transfer case N (Neutral) button until the N (Neutral) indicator light turns off. After the N (Neutral) indicator light turns off, release the N (Neutral) button. After the N (Neutral) button has been released, the transfer case will shift to the position indicated by the selector switch.
  7. With electronically shifted transfer case with push-button selector switch, push and hold the switch for the desired transfer case position, until the N

(Neutral) indicator light turns off and the desired position indicator light turns on.

NOTE:

When shifting the transfer case out of N (Neutral), turning the engine off is not required, but may be helpful to avoid gear clash. With 8-speed automatic transmission, the engine must remain running, since turning the engine off will shift the transmission to PARK (and the transmission must be in NEUTRAL for the transfer case to shift out of NEUTRAL).

  1. Turn the engine off. Shift automatic transmission into PARK. On 8-speed transmissions the shifter will automatically select PARK when the engine is turned off.
  2. Release the brake pedal.
  3. Disconnect vehicle from the tow vehicle.
  4. Start the engine.
  5. Press and hold the brake pedal.
  6. Release the parking brake.
  7. Shift the transmission into gear, release the brake pedal, and check that the vehicle operates normally.

NOTE:

With electronically shifted transfer case:

  • Steps 3 and 4 are requirements that must be met before pushing the button to shift out of N (Neutral), and must continue to be met until the shift has been completed. If any of these requirements are not met before pushing the button or are no longer met during the shift, the N (Neutral) indicator light will flash continuously until all requirements are met or until the button is released.
  • The ignition must be in the ON/RUN mode for a shift to take place and for the position indicator lights to be operable. If the ignition is not in the ON/RUN mode, the shift will not take place and no position indicator lights will be on or flashing.
  • A flashing N (Neutral) position indicator light indicates that shift requirements have not been met.

DRIVING TIPS

DRIVING ON SLIPPERY SURFACES

Acceleration

Rapid acceleration on snow covered, wet, or other slippery surfaces may cause the driving wheels to pull erratically to the right or left. This phenomenon occurs when there is a difference in the surface traction under the rear (driving) wheels.

WARNING!

Rapid acceleration on slippery surfaces is dangerous. Unequal traction can cause sudden pulling of the rear wheels. You could lose control of the vehicle and possibly have a collision. Accelerate slowly and carefully whenever there is likely to be poor traction (ice, snow, wet, mud, loose sand, etc.).

DRIVING THROUGH WATER

Driving through water more than a few inches/centimeters deep will require extra caution to ensure safety and prevent damage to your vehicle.

Flowing/Rising Water

WARNING!

Do not drive on or across a road or path where water is flowing and/or rising (as in storm run-off). Flowing water can wear away the road or path's surface and cause your vehicle to sink into deeper water. Furthermore, flowing and/or rising water can carry your vehicle away swiftly. Failure to follow this warning may result in injuries that are serious or fatal to you, your passengers, and others around you.

Shallow Standing Water

Although your vehicle is capable of driving through shallow standing water, consider the following Warnings and Cautions before doing so.

WARNING!

  • Driving through standing water limits your vehicle's traction capabilities. Do not exceed 5 mph (8 km/h) when driving through standing water.
  • Driving through standing water limits your vehicle's braking capabilities, which increases stopping distances. Therefore, after driving through standing water, drive slowly and lightly press on the brake pedal several times to dry the brakes.
  • Failure to follow these warnings may result in injuries that are serious or fatal to you, your passengers, and others around you.

CAUTION!

  • Always check the depth of the standing water before driving through it. Never drive through standing water that is deeper than the bottom of the tire rims mounted on the vehicle.
  • Determine the condition of the road or the path that is under water and if there are any obstacles in the way before driving through the standing water.
  • Do not exceed 5 mph (8 km/h) when driving through standing water. This will minimize wave effects.

(Continued)

CAUTION! (Continued)

  • Driving through standing water may cause damage to your vehicle's drivetrain components. Always inspect your vehicle's fluids (i.e., engine oil, transmission, axle, etc.) for signs of contamination (i.e., fluid that is milky or foamy in appearance) after driving through standing water. Do not continue to operate the vehicle if any fluid appears contaminated, as this may result in further damage. Such damage is not covered by the New Vehicle Limited Warranty.
  • Getting water inside your vehicle's engine can cause it to lock up and stall out, and cause serious internal damage to the engine. Such damage is not covered by the New Vehicle Limited Warranty.

MULTIMEDIA

UCONNECT SYSTEMS

For detailed information about your Uconnect 3.0 page 221.

For detailed information about your Uconnect 3 With 5-inch Display ↩ page 244.

For detailed information about your Uconnect 4/4C/4C NAV With 8.4-inch Display system or your Uconnect 4C NAV With 12-inch Display system, refer to your Uconnect Owner's Manual Supplement.

NOTE:

Uconnect screen images are for illustration purposes only and may not reflect exact software for your vehicle.

CYBERSECURITY

Your vehicle may be a connected vehicle and may be equipped with both wired and wireless networks. These networks allow your vehicle to send and receive information. This information allows systems and features in your vehicle to function properly.

Your vehicle may be equipped with certain security features to reduce the risk of unauthorized and unlawful access to vehicle systems and wireless communications. Vehicle software technology continues to evolve over time and FCA US LLC, working with its suppliers, evaluates and takes appropriate steps as needed. Similar to a computer or other devices, your vehicle may require software updates to improve the usability and performance of your systems or to reduce the potential risk of unauthorized and unlawful access to your vehicle systems.

The risk of unauthorized and unlawful access to your vehicle systems may still exist, even if the most recent version of vehicle software (such as Uconnect software) is installed.

WARNING!

  • It is not possible to know or to predict all of the possible outcomes if your vehicle's systems are breached. It may be possible that vehicle systems, including safety related systems, could be impaired or a loss of vehicle control could occur that may result in an accident involving serious injury or death.
  • ONLY insert media (e.g., USB or CD) into your vehicle if it came from a trusted source. Media of unknown origin could possibly contain malicious software, and if installed in your vehicle, it may increase the possibility for vehicle systems to be breached.
  • As always, if you experience unusual vehicle behavior, take your vehicle to your nearest authorized dealer immediately.

NOTE:

  • FCA US LLC or your dealer may contact you directly regarding software updates.
  • To help further improve vehicle security and minimize the potential risk of a security breach, vehicle owners should:

  • Routinely check www.driveuconnect.com (US Residents) or www.driveuconnect.ca (Canadian Residents) to learn about available Uconnect software updates.

  • Only connect and use trusted media devices (e.g. personal mobile phones, USBs, CDs).

Privacy of any wireless and wired communications cannot be assured. Third parties may unlawfully intercept information and private communications without your consent → page 116.

UCONNECT 3.0

INTRODUCTION

WARNING!

ALWAYS drive safely with your hands on the steering wheel. You have full responsibility and assume all risks related to the use of the Uconnect features and applications in this vehicle. Only use Uconnect when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

RAM 4500 Chassis Cab (2021) - WARNING! - 1

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Uconnect 3.0

1 - RADIO

Push the RADIO button on the faceplate to enter the Radio Mode. The different tuner modes, AM, FM, and SXM (if equipped), can be selected by pushing the RADIO button on the faceplate until the desired tuner mode is displayed.

2-MEDIA

Pushing the MEDIA button on the faceplate will allow you to switch from AM/FM/SXM modes to Media mode (USB/AUX).

3 - Play/Pause/MUTE

Push to Play, Pause or Mute music or an active phone call.

4 – Presets 1-6

These buttons on the faceplate tune the radio to the stations that you commit to memory AM (A, B, C), FM (A, B, C) and Satellite (A, B, C) — 15 AM, 15 FM and 15 SAT stations.

5 – Seek Down

Push the SEEK DOWN button on the faceplate to tune the radio to the previous listenable station or channel.

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6 - ON/VOLUME

Push the ON/VOLUME control knob to turn on the radio. Push the ON/VOLUME control knob a second time to turn off the radio.

The volume control turns continuously (360 degrees) in either direction without stopping. Turning the ON/VOLUME control knob to the right increases the volume and to the left decreases it.

7 - AUDIO

Push the Audio button on the faceplate to adjust the Bass, Mid Range, Treble, Balance or Fade.

8-MENU

Push the Menu button on the faceplate to scroll between the setting submenus.

9 — Phone Pick Up

Push the Phone Pick Up button to initiate or answer a phone call and send or receive a text.

10 – Phone Hang Up

Push the Phone Hang Up button to end a call.

11 – Seek Up ▶▶

Push the SEEK UP button on the faceplate to tune the radio to the next listenable station or channel.

12 — ENTER/BROWSE & TUNE/SCROLL

Push the Enter/Browse button to accept a highlighted selection on the screen. Rotate the Tune/Scroll knob to scroll through a list or tune a radio station.

13-BACK

Push the Back button on the faceplate to return to a previous menu or screen.

RADIO MODE

Operating Radio Mode

The radio is equipped with the following modes:

• FM
• AM
- SXM SiriusXM® Satellite Radio (if equipped)

Push the Radio button on the faceplate to enter the Radio Mode. The different tuner modes, AM, FM, and SXM, can then be selected by pushing the Radio button until the desired tuner mode is displayed.

Switching The System ON/OFF

Push the On/Off Volume Control knob to turn on the radio. Push the On/Off Volume Control knob a second time to turn off the radio.

When the audio system is turned on, the sound will be set at the same volume level as last played.

Volume Control

The electronic volume control turns continuously (360 degrees) in either direction without stopping. Turning the On/Off & Volume control knob to the right increases the volume and to the left decreases it.

Enter/Browse And Tune/Scroll Control

Turn the rotary Tune/Scroll control knob clockwise to increase or counterclockwise to decrease the radio station frequency.

When scrolling through a list, push the Enter/Browse button on the faceplate to choose a selection.

Seek Functions

Seek Up ▶▶

Push and release the Seek Up button to tune the radio to the next listenable station or channel.

During a Seek Up function, if the radio reaches the starting station after passing through the entire band two times, the radio will stop at the station where it began.

Seek Down

Push and release the Seek Down button to tune the radio to the next listenable station or channel.

During a Seek Down function, if the radio reaches the starting station after passing through the entire band two times, the radio will stop at the station where it began.

SiriusXM® Satellite Radio Mode — If Equipped

SiriusXM® Satellite Radio uses direct satellite-to-receiver broadcasting technology to provide clear digital sound, coast to coast. The subscription service provider is SiriusXM® Satellite Radio. This service offers over

130 channels of music, sports, news, entertainment, and programming for children, directly from its satellites and broadcasting studios. A one-year SiriusXM® Satellite Radio subscription is included.

Visit siriusxm.com/getallaccess or review your SiriusXM® Radio pamphlet in your Owner's Manual kit for more information.

SiriusXM® and all related marks and logos are trademarks of SiriusXM® Radio Inc. and its subsidiaries. SiriusXM® Satellite Radio requires a subscription, sold separately after the trial subscription included with vehicle purchase. Prices and programming are provided by SiriusXM® and are subject to change. Subscriptions governed by Terms & Conditions available at www.siriusxm.com/customeragreement. SiriusXM® Radio US service is only available to those at least 18 years of age in the 48 contiguous United States, D.C., and PR. Service is available in Canada; see www.siriusxm.ca.

No Subscription

Radios equipped with a Satellite receiver require a subscription to the SiriusXM® Service. When the Radio does not have the necessary subscription, the Radio is able to receive the Preview channel only.

Acquiring SiriusXM® Subscription

To activate the SiriusXM® Satellite Radio subscription, US visit siriusxm.com/getallaccess or call: 1-800-643-2112

Canada visit https://www.siriusxm.ca/ or call: 1-888-539-7474.

Setting Presets

The Presets are available for all Radio Modes, and are activated by pushing any of the six Preset buttons on the faceplate.

When you are receiving a station that you wish to commit into memory, push and hold the desired numbered button on the faceplate for more than two seconds or until you hear a confirmation beep.

The Radio stores up to 18 presets in each of the Radio modes.

Audio

Push Audio button. Turning the Tune/Scroll knob highlights the desired selection.

The Audio Menu shows the following options for you to customize the audio settings:

  • Treble, Mid, Bass, Fade And Balance — Select the desired setting to adjust, then push the Enter/Browse button. Turn the Tune/Scroll knob to adjust the setting + or - 9. Push the BACK button on the faceplate when done.
  • Speed Adjusted Volume (if equipped) — Select Speed Adjusted Volume and push the Enter/Browse button. Turn the Tune/Scroll knob to adjust the setting to Off, 1, 2, or 3. Push the Back button on the faceplate when done.
  • Loudness (if equipped) – Select Loudness and push the Enter/Browse button to mark the check box on or off. Push the Back button on the faceplate when done.
  • AUX Volume Offset (if equipped) – Select AUX Volume Offset and push the Enter/Browse button. Turn the Tune/Scroll knob to adjust the setting + or - 3. Push the Back button on the faceplate when done.

Clock Setting

  1. Push the Menu button at the bottom of the radio, and push the Enter/Browse button for System Settings. Next, select the Time and Format setting and then select Set Time by pushing the Enter/Browse button.
  2. Adjust the hours or minutes by turning the Tune/Scroll knob, then pushing the Enter/Browse button to move to the next entry. You can also select 12 hr or 24 hr format by turning the Tune/Scroll knob, then pushing the Enter/Browse button on the desired selection.
  3. Once the time is set, press the Back button to exit the time screen.

MEDIA MODE

Operating Media Mode

Media Mode is entered by pushing the Media button on the faceplate located to the left of the display. Once in Media Mode, press the Media button in order to select the desired media source.

Audio Source Selection

Push the Media button on the faceplate to select the desired audio source, AUX, USB or Bluetooth® audio device.

Seek Up/Seek Down

Push and release the Seek Up▶button on the faceplate for the next selection.

Push and release the Seek Down button on the faceplate to return to the beginning of the current selection, or return to the beginning of the previous selection if the Media is within the first three seconds of the current selection.

Fast Seek Up ▶▶

Push and hold the Seek Up ▶ button on the faceplate and the desired mode will begin to fast forward through the current track until the button on the faceplate is released.

Fast Seek Down

Push and hold the Seek Down button on the faceplate and the desired mode will begin to rewind through the current track until the button on the faceplate is released.

USB Mode

USB Mode is entered by either inserting a USB device into the USB port, or by pushing the Media button. Once in Media Mode, push the Media button and select USB. The display will show the track number, and track time in minutes and seconds. Play will begin at the start of track one.

Bluetooth® Mode

Bluetooth® Streaming Audio (BTSA) or Bluetooth® Mode is entered by pairing a Bluetooth® device containing music to the Uconnect system.

Before proceeding, the Bluetooth® device must be paired with the Uconnect Phone to communicate with the Uconnect system.

Once the Bluetooth® device is paired to the Uconnect system, push the Media button located on the faceplate. Once in Media Mode, push the Media button and then select Bluetooth®.

For mobile phone compatibility and pairing instructions, please visit UconnectPhone.com.

AUX Mode

AUX Mode is entered by inserting an AUX device using a cable with a 3.5 mm stereo audio jack into the AUX port, or by pushing Media button. Once in Media Mode, push the Media button and select AUX.

If you insert an auxiliary device with the ignition ON/RUN and the radio On, the unit will switch to AUX Mode and begin to play when you insert the device cable.

Controlling The Auxiliary Device

The control of the auxiliary device (e.g., selecting playlists, play, fast forward, etc.) cannot be provided by the radio. Use the device controls instead. Adjust the volume with the On/Off Volume rotary knob or with the volume of the attached device.

NOTE:

The vehicle radio unit is acting as the amplifier for audio output from the auxiliary device. Therefore, if the volume control on the auxiliary device is set too low, there will be insufficient audio signal for the radio unit to play music from the device.

PHONE MODE

Operating Phone Mode

RAM 4500 Chassis Cab (2021) - Operating Phone Mode - 1

text_image Please say a command Listen Ignore Call

A0407000006US

Phone Mode Voice Commands

The Uconnect Phone is a voice-activated, hands-free, communications system with Voice Command Capability. The Uconnect Phone allows you to dial a phone number with your mobile phone using simple voice commands.

NOTE:

The Uconnect Phone requires a mobile phone equipped with the Bluetooth® Hands-Free Profile. To check mobile phone compatibility, please visit UconnectPhone.com.

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Uconnect System Support:

  • US residents visitDriveUconnect.com or call 1-877-855-8400 (24 hours a day, 7 days a week)
  • Canadian residents visit DriveUconnect.ca or call 1-800-465-2001 (English) or 1-800-387-9983 (French)

Monday–Friday: 8:00 am – 8:00 pm, ET Saturday: 9:00 am – 5:00 pm, ET Sunday: Closed

WARNING!

ALWAYS drive safely with your hands on the wheel. You have full responsibility and assume all risks related to the use of the Uconnect features and applications in this vehicle. Only use Uconnect when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

Changing The Volume

  1. Start a call by pushing the Phone button, then adjust the volume during a normal call.
  2. Use the radio On/Volume rotary knob to adjust the volume to a comfortable level.

Please note the volume setting for Uconnect phone is different than the audio system volume setting.

Making A Phone Call

  1. Push the Phone button on the steering wheel.
  2. After the beep, say "dial" or "call" and then the full name or phone number.

NOTE:

A phone call can also be made by pushing the Phone button on the radio, and selecting a particular contact in the phonebook or recent calls.

Mute (Or Unmute) Microphone During Call

Push the "Play/Pause/Mute" button on the radio or during a call, push the Voice Recognition button on the steering wheel. After the beep, say "mute" (or "mute off").

Pairing A Phone

To begin using your Uconnect Phone, you must pair your compatible Bluetooth®-enabled mobile phone. Mobile phone pairing is the process of establishing a wireless connection between a cellular phone and the Uconnect system.

To complete the pairing process, you will need to reference your mobile phone Owner's Manual. Please visit UconnectPhone.com for complete mobile phone compatibility information.

NOTE:

  • You must have Bluetooth® enabled on your phone to complete this procedure.
    • The vehicle must be in PARK.
  • Place the ignition in the ACC or ON/RUN position.
  • Push the Phone button.

NOTE:

If there are no phones currently connected with the system, a pop-up will appear asking if you would like to pair a mobile phone.

  1. Select "Yes" to begin the pairing process.

  2. Search for available devices on your Bluetooth®-enabled mobile phone.

  3. Press the Settings button on your mobile phone.

  4. Select "Bluetooth®" and ensure it is enabled. Once enabled, the mobile phone will begin to search for Bluetooth® connections.

  5. If "No" is selected, and you still would like to pair a mobile phone, press the Settings button from the Uconnect Phone main screen.

  6. Select "Paired Phones", and then select "Add Device".

  7. Search for available devices on your Bluetooth®-enabled mobile phone (see below). When prompted on the phone, select "Uconnect" and accept the connection request.

  8. Uconnect Phone will display an in-progress screen while the system is connecting.

  9. When your mobile phone finds the Uconnect system, select "Uconnect".
  10. When prompted on the mobile phone, accept the connection request from Uconnect Phone.

NOTE:

Some mobile phones will require you to enter the PIN.

  1. When the pairing process has successfully completed, the system will prompt you to choose whether or not this is your favorite phone. Selecting "Yes" will make this phone the highest priority. This phone will take precedence over other paired phones within range and will connect to the Uconnect system automatically when entering the vehicle. Only one mobile phone and/or one Bluetooth® audio device can be connected to the Uconnect system at a time. If "No" is selected, simply select "Uconnect" from the mobile phone/audio device Bluetooth® screen, and the Uconnect system reconnects to the Bluetooth® device.

NOTE:

Software updates on your phone or the Uconnect system may interfere with the Bluetooth® connection. If this happens, simply repeat the pairing process. However, first, make sure to delete the device from the list of phones on your Uconnect system. Next, be sure to remove Uconnect from the list of devices in your phone's Bluetooth® settings.

Phonebook Download — Phonebook Transfer From Mobile Phone

If equipped and specifically supported by your phone, Uconnect Phone will ask you if you want to download names (text names) and number entries from your mobile phone's phonebook. Specific Bluetooth® Phones with Phonebook Access Profile may support this feature. See UconnectPhone.com for supported phones.

Receiving A Call — Accept (And End)

  1. When an incoming call rings or is announced on Uconnect, push the Phone button on the faceplate.
  2. To end a call, push the Phone button on the steering wheel or the Phone button on the faceplate.

NOTE:

A phone call can also be accepted and ended by pushing the steering wheel Phone button.

Transfer Ongoing Call Between Handset And Vehicle

With a call in progress, use the Browse/Enter knob to select "transfer" then push the enter button or push the Phone Pick Up button on the

steering wheel controls during a call, push the Voice Recognition button on the steering wheel. After the beep, say "transfer call".

UCONNECT SETTINGS

The Uconnect system uses a combination of buttons on the touchscreen and buttons on the faceplate located on the center of the instrument panel. These buttons allow you to access and change the Customer Programmable Features. Many features can vary by vehicle.

Buttons on the faceplate are located below and/or beside the Uconnect system in the center of the instrument panel. In addition, there is a Scroll/Enter control knob located on the right side. Turn the control knob to scroll through menus and change settings. Push the center of the control knob one or more times to select or change a setting.

Your Uconnect system may also have Screen Off and Mute buttons on the faceplate.

Push the Screen Off button on the faceplate to turn off the Uconnect screen. Push the button again or tap the screen to turn the screen on.

Press the Back Arrow button to exit out of a Menu or certain option on the Uconnect system.

CUSTOMER PROGRAMMABLE FEATURES

RAM 4500 Chassis Cab (2021) - CUSTOMER PROGRAMMABLE FEATURES - 1

text_image 8:29 Settings Display Clock Safety Driving Assistance Lights Doors Locks Auto-On Comfort Key Off Options Compass Hi hardware list Climate Media Android Apps CarPlay New Phone A0417000036US

Uconnect 4C NAV With 12-inch Display Touchscreen And Faceplate Buttons

1 — Uconnect Buttons On The Touchscreen
2 — Uconnect Buttons On The Faceplate

For the Uconnect 3 With 5-inch Display, the Uconnect 4/4C/4C NAV With 8.4-inch Display, and Uconnect 4C NAV With 12-inch Display

Press the Apps button, then press the Settings button on the touchscreen to display the menu setting screen. In this mode the Uconnect system allows you to access programmable features.

NOTE:

  • Depending on the vehicle's options, feature settings may vary.
  • All settings should be changed with the ignition in the ON/RUN position.

When making a selection, only press one button at a time to enter the desired menu. Once in the desired menu, press and release the preferred setting "option" until a check mark appears next to the setting, showing that setting has been selected. Once the setting is complete, press the X button on the touchscreen to close out of the settings screen. Pressing the Up or

Down Arrow button on the right side of the screen will allow you to toggle up or down through the available settings.

Language

When the Language button is pressed on the touchscreen, the system displays the different

language options. Once an option is selected, the system will display in the chosen language. The available setting is:

Setting Name Description
LanguageThis setting will change the language of the Uconnect system. The available languages are English, Français, and Español.

Display

When the Display button is pressed on the touchscreen, the system will display the options related to the theme (if equipped), brightness, and color of the touchscreen. The available settings are:

Setting Name Description
Display ModeThis setting will allow you to set the brightness manually or have the system set it automatically. The “Auto” setting has the system automatically adjust the display brightness. The “Manual” setting will allow the user to adjust the brightness of the display.
Display Brightness With Headlights ON/BrightnessThis setting will allow you to set the brightness when the headlights are on. To access this setting, Display Mode must be set to Manual. The “+” setting will increase the brightness; the “-” will decrease the brightness.
Display Brightness With Headlights OFF/BrightnessThis setting will allow you to set the brightness when the headlights are off. To access this setting, Display Mode must be set to Manual. The “+” setting will increase the brightness; the “-” will decrease the brightness.
Set Theme This setting will allow you to change the display theme.

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Setting Name Description
KeyboardThis setting will change the keyboard type on the display. The selectable keyboards are “ABCDEF Keyboard”, “QWERTY Keyboard”, and “AZERTY Keyboard”.
Touchscreen Beep This setting will allow you to turn the touchscreen beep on or off.
Control Screen TimeoutThis setting allows you to set the Control Screen to turn off automatically after five seconds or stay open until manually closed.
Navigation Next Turn Pop-ups Displayed in ClusterThis setting will display navigation prompts in the Instrument Cluster Display.
Phone Pop-ups Displayed In ClusterThis setting will display smartphone notifications and messages in the Instrument Cluster Display.
Fuel Saver Display This setting will enable fuel saver mode in the Instrument Cluster Display.
Ready To Drive Pop-upsThis setting will enable the Ready To Drive Pop-ups in the Instrument Cluster Display.

Units

When the Units button is pressed on the touchscreen, the system displays the different measurement options. The selected unit of measurement will display in the instrument cluster display and Navigation system (if equipped). The available settings are:

Setting Name Description
US This setting will change the unit of measurement on the display to US.
Metric This setting will change the unit of measurement on the display to Metric.
CustomThis setting changes the “Speed” (MPH or km/h), “Distance” (mi or km), “Fuel Consumption” (MPG [US], MPG [UK], L/100 km, or km/L), “Pressure” (psi, kPa, or bar), “Temperature” (°C or °F), and “Capacity” (Gal [US], Gal [UK], or L) units of measurement independently.

Voice

When the Voice button is pressed on the touchscreen, the system displays the options related to the vehicle's Voice Recognition feature.

Setting Name Description
Voice Response LengthThis setting will change the response length for the Voice Recognition system. The “Brief” setting provides a shortened audio description from the system. The “Detailed” setting provides the full audio description from the system.
Show Command ListThis setting will allow you to turn the command list on or off. The “Always” setting will always show the command list. The “With Help” setting will show the command list and provide a brief description of what the command does. The “Never” setting will turn the command list off.

Clock

When the Clock button is pressed on the touchscreen, the system displays the different options related to the vehicle's internal clock.

Setting Name Description
Sync Time With GPSThis setting will sync the time to the GPS receiver in the system. The system will control the time via the GPS location.
Set Time And Format/Time FormatThis setting will allow you to set the time format (AM/PM). Sync Time With GPS must be off for this setting to be available. The “12 hrs” setting will set the time to a 12-hour format. The “24 hrs” setting will set the time to a 24-hour format.
Set Time HoursThis setting will allow you to set the hours. Sync Time With GPS must be off for this setting to be available. The “+” setting will increase the hours. The “-” setting will decrease the hours.

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Setting Name Description
Set Time MinutesThis setting will allow you to set the minutes. Sync Time With GPS must be off for this setting to be available. The “+” setting will increase the minutes. The “-” setting will decrease the minutes.
Show Time in Status Bar This setting will place the time in the radio’s status bar.

Camera

When the Camera button is pressed on the touchscreen, the system displays the options related to the vehicle's camera features.

Setting Name Description
Surround View Camera DelayThis setting will add a timed delay to the surround view camera when shifting out of reverse.
Surround View Camera GuidelinesThis setting will turn the surround view camera guidelines on or off.
ParkView Backup Camera DelayThis setting will add a timed delay to the rear backup camera when shifting out of reverse.
ParkView Backup Camera Active GuidelinesThis setting will turn the backup camera active guidelines on or off.
ParkView Backup Camera Fixed GuidelinesThis setting will turn the backup camera fixed guidelines on or off.

Safety/Driving Assistance

When the Safety/Driving Assistance button is selected on the touchscreen, the system displays the options related to the vehicle's safety settings. These options will differ depending on the features equipped on the vehicle. The settings may display in list form or within subfolders on the screen. To access a subfolder, select the desired folder; the available options related to that feature will then display on the screen.

Setting Name Description
Forward Collision Warning SensitivityThis setting will change the distance at which the Forward Collision Warning (FCW) alert sounds. The “Medium” setting will have the FCW system signal when an object is in view, and the possibility of a collision is detected. The “Near” setting will have the FCW system signal when the object is closer to the vehicle. The “Far” setting will have the FCW system signal when an object is at a far distance from the vehicle.
Forward Collision WarningThis setting will turn the Forward Collision Warning system on or off. The “Off” setting will deactivate the FCW system. The “Warning Only” setting will provide only an audible chime when a collision is detected. The “Warning + Active Braking” setting will provide an audible chime and apply some brake pressure when a collision is detected.
Pedestrian Emergency BrakingThis setting will turn the Pedestrian Emergency Braking system on or off.
LaneSense WarningThis setting will change the distance at which the steering wheel will provide lane departure feedback. The available settings are “Early”, “Medium”, and “Late”.
LaneSense StrengthThis setting will change the strength of the steering wheel feedback during a lane departure. The available settings are “Low”, “Medium”, and “High”.
ParkSenseThis setting will change the type of ParkSense alert when a close object is detected and provide both an audible chime and a visual display.
Front ParkSense VolumeThis setting adjusts the volume of the Front ParkSense system. The available settings are “Low”, “Medium”, and “High”.

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Setting Name Description
Rear ParkSense VolumeThis setting adjusts the volume of the Rear ParkSense system. The available settings are “Low”, “Medium”, and “High”.
Rear ParkSense Braking AssistThis setting will turn the Rear ParkSense Braking Assist on or off.
Blind Spot AlertThis setting will change the type of alert provided when an object is detected in a vehicle’s blind spot. The “Off” setting will turn off Blind Spot Alert. The “Lights” setting will activate the Blind Spot Alert lights on the outside mirrors. The “Lights & Chime” setting will activate both the lights on the outside mirrors and an audible chime.
Trailer Length For Blind Spot AlertThis setting will auto detect the length of an attached trailer. The “Auto” setting will have the system automatically set the trailer length. The “Max” setting will always set the length to the maximum 39.5 ft (12 m).
Hill Start Assist This setting will turn the Hill Start Assist system on or off.
ParkView Backup Camera DelayThis setting will add a timed delay to the rear backup camera when shifting out of reverse.
ParkView Backup Camera Active GuidelinesThis setting will turn the Backup Camera Active Guidelines on or off.
ParkView Backup Camera Fixed GuidelinesThis setting will turn the Backup Camera Fixed Guidelines on or off.
Tire Fill Assist This setting will turn Tire Fill Assist on or off.
Power Side StepsThis setting will raise and lower or stow the power side steps. The available options are “Automatic” to raise and lower the power side steps and “Stow” to deactivate the power side steps.

Mirrors & Wipers

When the Mirrors & Wipers button is pressed on the touchscreen, the system displays the options related to the vehicle's mirrors and wipers.

Setting Name Description
Tilt Side Mirrors In ReverseThis setting will tilt the outside side-view mirrors when the ignition is in the ON/RUN position and the transmission gear selector is in the REVERSE position. The mirrors will move back to their previous position when the transmission is shifted out of REVERSE. The available settings are “On” and “Off”.
Rain Sensing Auto Wipers This setting will turn the rain sensing auto wipers on or off.
Headlights With Wipers This setting will turn the headlights on when the wipers are activated.

Brakes

After pressing the Brakes button on the touchscreen, the following settings will be available:

Setting Name Description
Auto Park Brake This setting will turn the Auto Park Brake on or off.
Brake Service This setting will allow you to retract the brakes for servicing.

Lights

When the Lights button is pressed on the touchscreen, the system displays the options related to the vehicle's exterior and interior lights.

NOTE:

When the “Daytime Running Lights” feature is selected, the daytime running lights can be turned on or off. This feature is only allowed by law in the country of the vehicle purchased.

Setting Name Description
Headlight Off DelayThis setting will allow you to set the amount of time it takes for the headlights to shut off after the vehicle is turned off. The available settings are “0 sec”, “30 sec”, “60 sec”, and “90 sec”.
Headlight Illumination On ApproachThis setting will allow you to set the amount of time it takes for the headlights to shut off after the vehicle is unlocked. The available settings are “0 sec”, “30 sec”, “60 sec”, and “90 sec”.
Headlights with Wipers This setting will turn the headlights on when the wipers are activated.
Daytime Running LightsThis setting will allow you to turn the Daytime Running Lights on or off.
Flash Lights With LockThis setting will allow you to turn the flashing of the lights when the Lock button is pushed on the key fob on or off.
Auto Dim High Beams This setting will allow you to turn the Auto Dim High Beams on or off.
Steering Directed LightsThis setting will turn the headlights with the steering wheel. The available options are “On” and “Off”.

Doors & Locks

When the Doors & Locks button is pressed on the touchscreen, the system displays the options related to locking and unlocking the vehicle's doors.

Setting Name Description
Auto Door LocksThis setting will allow you to change if the doors lock automatically when the vehicle reaches 12 mph (19 km/h).
Auto Unlock On ExitThis setting will unlock the doors when any of the doors are opened from the inside.
Flash Lights With LockThis setting will allow you to turn the flashing of the lights when the Lock button is pushed on the key fob on or off.
Sound Horn With LockThis setting will sound the horn when the Lock button is pushed on the key fob. The “Off” setting will not sound the horn when the Lock button is pushed. The “1st Press” setting will sound the horn when the Lock button is pushed once. The “2nd Press” setting will sound the horn when the Lock button is pushed twice.
Sound Horn With Remote StartThis setting will sound the horn when the remote start is activated from the key fob.
Remote Door Unlock, Door Lock/1st Press Of Key Fob UnlocksThis setting will change how many pushes of the Unlock button on the key fob are needed to unlock all the doors. The “Driver Door” setting will only unlock the driver door on the first push on the Unlock button. The “All Doors” setting will unlock all doors with only one push of the Unlock button.
Passive EntryThis setting will allow you to turn the Passive Entry feature (Keyless Enter-N-Go) on or off.
Personal Settings Linked To Key FobThis setting will recall preset radio stations and driver seat position that have been linked to the key fob.

Power Side Steps

When the Power Side Steps button is pressed on the touchscreen, the system will display the setting related to the lowering of the power side steps.

Setting Name Description
Power Side StepsThis setting will raise and lower or stow the power side steps. The available options are “Automatic” to raise and lower the power side steps and “Stow” to deactivate the power side steps.

Seats & Comfort/Auto-On Comfort

When Seats & Comfort/Auto-On Comfort button is pressed on the touchscreen, the system displays the options related to the vehicle's comfort systems when remote start has been activated or the vehicle has been started.

Setting Name Description
Auto-On Driver Heated/Ventilated Seat & Heated Steering Wheel With Vehicle StartThis setting will activate the vehicle’s comfort systems and heated seats (if equipped) or heated steering wheel (if equipped) when the vehicle is remote started or ignition is started. The “Off” setting will not activate the comfort systems. The “Remote Start” setting will only activate the comfort systems when using Remote Start. The “All Start” setting will activate the comfort systems whenever the vehicle is started.
Easy Exit SeatsThis setting will automatically move the driver seat rearward when the engine is shut off. The available settings are “On” and “Off”.

Key Off Options/Engine Off Options

When the Key Off Options/Engine Off Options button is pressed on the touchscreen, the system displays the options related to vehicle shutoff. These settings will only activate when the ignition is set to OFF.

Setting Name Description
Easy Exit Seat This setting adjusts the seats to make exiting the vehicle easier.
Key Off/Engine Off Power DelayThis setting will keep certain electrical features running after the engine is turned off.When any door is opened, the electronics will deactivate. The available settings are “0 sec”,“45 sec”, “5 min”, and “10 min”.
Headlight Off DelayThis setting will allow you to set the amount of time the headlights remain on after the vehicle has been turned off. The “+” will increase the amount of time. The “-” will decrease the amount of time.
Auto Entry/ExitThis setting will automatically lower the vehicle ride height for easier entry and exit of the vehicle.

Suspension/Air Suspension

When the Suspension/Air Suspension button is pressed on the touchscreen, the system will display settings related to the vehicle's air suspension.

Setting Name Description
Sound Horn With LowerThis setting will sound the horn when the Lower button is pressed on the key fob.
Flash Lights With LowerThis setting will flash the lights when the Lower button is pressed on the key fob.
Display Suspension MessagesThis setting will display suspension messages in the Instrument Cluster Display. The “All” setting will display all available messages. The “Warnings Only” setting will only display warning messages.

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Setting Name Description
Aero ModeThis setting will automatically adjust the vehicle ride height depending on the vehicle speed.
Tire Jack ModeThis setting will disable the air suspension system to assist in changing a spare tire.
Transport Mode This setting will disable the air suspension system for flat towing.
Wheel Alignment ModeThis setting must be activated before performing a wheel alignment. Refer to an authorized dealer for further information.
Four Corner Air Suspension ModesThere are three air suspension modes designed to protect the system in unique situations. Tire Jack Mode is selected to assist in changing a spare tire. Transport Mode is selected to assist when the vehicle is being flat bed towed. Wheel Alignment Mode is selected before performing a wheel alignment. Refer to an authorized dealer for information.

AUX Switches — If Equipped

When the AUX Switches button is pressed on the touchscreen, the system displays the options related to the four vehicle AUX switches.

Setting Name Description
AUX 1-4This setting will adjust the type and power source for the four vehicle AUX switches. There are two types: “Latching” and “Momentary”. The power source for the AUX switches can either be set to run off the “Battery” or from the “Ignition”. In addition to setting the type and power source, you can set if the vehicle will recall the previous state at which the AUX switches were set. The Recalled Last State setting can be set to “On” or “Off”. Last state conditions are met only if the type is set to Latching and the power source is set to Ignition.

Trailer Brake/Trailer

When the Trailer Brake/Trailer button is pressed on the touchscreen, the system will display settings related to trailer towing.

Setting Name Description
Trailer SelectSelect from “Trailer 1”, “Trailer 2”, “Trailer 3”, and “Trailer 4”. These trailer designations can be used to save different trailer settings.
Trailer Brake TypeThis setting will set the system to a specific trailer type. The available options are “Light Electric”, “Heavy Electric”, “Light Electric-Over-Hydraulic”, and “Heavy Electric-Over-Hydraulic”.
Trailer NameThis setting will personalize the trailer name depending on the type of trailer you are hauling. Select the trailer name from the following list: trailer, boat, car, cargo, dump, equipment, flatbed, gooseneck, horse, livestock, motorcycle, snowmobile, travel, utility, and 5th wheel.

Audio

When the Audio button is pressed on the touchscreen, the system displays options related to the vehicle's sound system. These settings can change the audio location within the vehicle, adjust the bass or treble levels, and auto-play settings from an audio device or smartphone.

Setting Name Description
Balance/FadeThis setting will adjust audio levels from specific speakers in the front/back and left/right of the vehicle. The Speaker icon can be moved to set audio location.
Equalizer This setting will adjust the “Bass”, “Mid”, and “Treble” ranges of the audio.
Speed Adjusted VolumeThis setting will adjust audio volume as speeds increase. At a higher setting, the volume will increase more as the vehicle speeds up. The available settings are “Off”, “1”, “2”, and “3”.
Surround Sound This setting will turn the Surround Sound system on or off.

242 MULTIMEDIA

Setting Name Description
AUX Volume OffsetThis setting will tune the audio levels from a device connected through the AUX port. The available settings are “+” and “-”.
Auto Play This setting will automatically begin playing audio from a connected device.
Loudness This setting will improve audio quality at lower volumes.

Phone/Bluetooth®

When the Phone/Bluetooth® button is pressed on the touchscreen, the system displays the options related to Bluetooth® connectivity from an external audio device or smartphone. The list of paired audio devices or smartphones can be accessed from this menu.

Setting Name Description
Phone Pop-Ups Displayed In ClusterThis setting will activate phone message pop-ups in the Instrument Cluster Display.
Do Not DisturbThis setting will open the “Do Not Disturb” settings menu. The settings are “Auto Reply” (both, text, call), “Auto Reply Message” (custom, default), and “Custom Auto Reply Message” (create message).
Paired Phones This setting will show the list of paired phones.
Paired Audio Sources This setting will show the list of paired audio sources.
Paired Phones And Audio DevicesThis setting will show the list of paired phones and audio devices.

SiriusXM® Setup

NOTE:

A subscription to SiriusXM® satellite radio is required for these settings to be functional.

When the SiriusXM® Setup button is pressed on the touchscreen, the system displays options related to SiriusXM® satellite radio. These settings can be used to skip specific radio channels and restart favorite songs from the beginning.

Setting Name Description
Tune StartThis setting will play the current song from the beginning when you tune to a music channel using one of the 12 presets.
Channel SkipThis setting allows you to set channels that you wish to skip. A channel list will display of the skipped channels.
Subscription InformationThis menu provides SiriusXM® subscription information. SiriusXM® Travel Link is a separate subscription.

Reset/Restore Settings To Default

When the Reset/Restore Settings To Default button is pressed on the touchscreen, the system displays the options related to resetting the Uconnect system back to its default settings. These settings can clear personal data and reset selected settings from other menus.

Setting Name Description
Restore SettingsThis setting will return all the previously changed settings to their factory default.
Reset App Drawer This setting will reset the app drawer to its factory default layout.
Clear Personal DataThis setting will display a pop-up that gives you the option to clear all personal data from the system, including Bluetooth® devices and presets.

UCONNECT INTRODUCTION

SYSTEM OVERVIEW

RAM 4500 Chassis Cab (2021) - SYSTEM OVERVIEW - 1

text_image 1 2 3 4 5 6 7 8 9 10 101.9 EN 0700 Tunes Mobile Audio AD408000026US

Uconnect 3 With 5-inch Display

1 - Radio Button
2 - Media Button
3 - Phone Button
4 - Volume & On/Off Button
5 - Mute Button
6 — Compass Button
7 — Settings Button
8 - More Button
9 — Enter/Browse & Tune/Scroll Knob
10 – Screen Off Button

NOTE:

Uconnect screen images are for illustration purposes only and may not reflect exact software for your vehicle.

Feature Description
Radio/MediaPress the Radio button or Media button to enter Radio Mode/Media Mode and access the radio functions and external audio sources ➔ page 247.
PhonePress the Phone button to enter Phone Mode and access the hands-free phone system ➔ page 258.
SettingsPress the Settings button to access the Uconnect Settings ➔ page 228.
RAM 4500 Chassis Cab (2021) - NOTE: - 1Push the Enter/Browse button on the faceplate to accept a highlighted selection on the screen. Rotate the Tune/Scroll rotary knob to scroll through a list or tune a radio station.
RAM 4500 Chassis Cab (2021) - NOTE: - 2Push the Screen Off button on the faceplate to turn the screen on or off.
RAM 4500 Chassis Cab (2021) - NOTE: - 3Push the Mute button on the faceplate to turn the audio of the radio system off. Push it again to turn the audio back on.
RAM 4500 Chassis Cab (2021) - NOTE: - 4Rotate the rotary knob to adjust the volume. Push the Volume & On/Off button on the faceplate to turn the system on or off.
Feature Description
Compass Press the Compass button to access the vehicle's compass.
More Press the More button to access additional options.

SAFETY AND GENERAL INFORMATION

Safety Guidelines

WARNING!

ALWAYS drive safely with your hands on the steering wheel. You have full responsibility and assume all risks related to the use of the Uconnect features and applications in this vehicle. Only use Uconnect when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

Please read this manual carefully before using the system. It contains instructions on how to use the system in a safe and effective manner.

Do NOT attach any object to the touchscreen. Doing so can result in damage to the touchscreen.

Please read and follow these safety precautions. Failure to do so may result in injury or property damage.

- Glance at the screen only when safe to do so. If prolonged viewing of the screen is required, park in a safe location and set the parking brake.

  • Stop use immediately if a problem occurs. Failure to do so may cause injury or damage to the product. See an authorized dealer for repair.
  • Ensure the volume level of the system is set to a level that still allows you to hear outside traffic and emergency vehicles.

Safe Usage Of The Uconnect System

  • The Uconnect system is a sophisticated electronic device. Do not let young children use the system.
  • Permanent hearing loss may occur if you play your music or sound system at loud volumes. Exercise caution when setting the volume on the system.
  • Keep drinks, rain and other sources of moisture away from the system. Besides damage to the system, moisture can cause electric shocks as with any electronic device.

NOTE:

Many features of this system are speed dependent. For your own safety, it is not possible to use some of the touchscreen features while the vehicle is in motion.

Care And Maintenance

  • Do not press the touchscreen with any hard or sharp objects (pen, USB stick, jewelry, etc.), which could scratch the surface.
  • Do not spray any liquid or chemicals directly on the screen! Use a clean and dry microfiber lens cleaning cloth in order to clean the touchscreen.
  • If necessary, use a lint-free cloth dampened with a cleaning solution, such as isopropyl alcohol or an isopropyl alcohol and water solution ratio of 50:50. Be sure to follow the solvent manufacturer's precautions and directions ➤ page 449.

UCONNECT MODES

STEERING WHEEL AUDIO CONTROLS

The remote sound system controls are located on the rear surface of the steering wheel at the three and nine o'clock positions.

RAM 4500 Chassis Cab (2021) - STEERING WHEEL AUDIO CONTROLS - 1

natural_image Diagram of a car steering wheel with black arrows indicating clockwise motion (no text or symbols)

Remote Sound System Controls

The right-hand control is a rocker-type switch with a push button in the center and controls the volume and mode of the sound system. Pushing the top of the rocker switch will increase the volume, and pushing the bottom of the rocker switch will decrease the volume.

Pushing the center button will make the radio switch between the various modes available (AM/FM/SXM or Media, etc.).

The left-hand control is a rocker-type switch with a push button in the center. The function of the left-hand control is different depending on which mode you are in.

The following describes the left-hand control operation in each mode:

Radio Operation

Pushing the top of the switch will Seek Up for the next available station and pushing the bottom of the switch will Seek Down for the next available station.

The button located in the center of the left-hand control will tune to the next preset station that you have programmed in the radio presets.

Media Mode

Pushing the top of the switch skips to the next track on the selected media (AUX/USB/Bluetooth®). Pushing the switch up twice will go forward two tracks. Pushing the bottom switch goes to the beginning of the current track, or the beginning of the previous track if it is within eight seconds after the current track begins to play. Double pressing the bottom button switch will skip to the previous track if it is after eight seconds into the current track.

RADIO MODE

Radio Controls
RAM 4500 Chassis Cab (2021) - RADIO MODE - 1

bar | Category | Value | |---|---| | 1 | 102.0 | | 2 | All | | FM | 101.9 | | AM/SXM | Tune Info Audio | | 3 | | | 4 | | | 5 | | | 6 | | | 7 | | | 8 | |

Uconnect 3 With 5-inch Display

1 – Preset Radio Stations
2 – All Preset Radio Stations
3 - Radio Band (AM/FM)
4 – Seek Down ◀◀
5-Tune
6 - Station Info
7 - Seek Up ▶▶
8 – Audio Settings

The radio is equipped with the following modes:

• AM
• FM
SiriusXM® Satellite Radio (if equipped)

Press the Radio button on the touchscreen to enter the Radio Mode. The different tuner modes, AM, FM, and SXM, can then be selected by pressing the corresponding buttons in Radio Mode.

Volume & On/Off Control

Push the Volume & On/Off control knob to turn on and off the Uconnect system.

The electronic volume control turns continuously (360 degrees) in either direction, without stopping. Turning the Volume & On/Off control knob clockwise increases the volume, and counterclockwise decreases it.

When the audio system is turned on, the sound will be set at the same volume level as last played.

Mute Button

Push the Mute button to mute or unmute the system.

Tune/Scroll Control

Turn the rotary Tune/Scroll control knob clockwise to increase or counterclockwise to decrease the radio station frequency. Push the Enter/Browse button to choose a selection.

Seek

The Seek Up and Down functions are activated by pressing the double arrow buttons on the touchscreen to the right and left of the radio station display or by pressing the left steering wheel audio control button up or down.

Seek Up ▶ and Seek Down

Press and release the Seek Up ▶r Seek Down ▶button to tune the radio to the next available station or channel. During a Seek Up/Down function, if the radio reaches the starting station after passing through the entire band two times, the radio will stop at the station where it began.

Fast Seek Up ▶ and Fast Seek Down

Press and hold, and then release the Seek Up ▶ or Seek Down button to advance the radio through the available stations or channels

at a faster rate. The radio stops at the next available station or channel when the button on the touchscreen is released.

NOTE:

Pressing and holding either the Seek Up ▶ or

Seek Down button will scan the different frequency bands at a slower rate.

Info — If Equipped

Press the Info button to display information related to the currently playing song and radio station.

Direct Tune

Press the Tune button located at the bottom of the radio screen to directly tune to a desired radio station or channel.

Press the available number button on the touchscreen to begin selecting a desired station. Once a number has been entered, any numbers that are no longer possible (stations that cannot be reached) will become deactivated/grayed out.

Undo

You can backspace an entry by pressing the Back button on the touchscreen.

GO

Once the last digit of a station has been entered, press "GO". The Direct Tune screen will close, and the system will automatically tune to that station.

Radio Voice Commands

Use your voice to quickly get to the AM, FM, or SiriusXM® Satellite Radio stations you would like to hear. (Subscription or included SiriusXM® Satellite Radio trial required.)

Push the VR button on the steering wheel and wait for the beep to say a command. See some examples below.

  • "Tune to ninety-five-point-five FM"
    • "Tune to Satellite Channel Hits 1"

Did You Know: At any time, if you are not sure of what to say or want to learn a Voice Command, push the VR button and say "Help". The system provides you with a list of commands.

SiriusXM® Satellite Radio Mode — If Equipped

RAM 4500 Chassis Cab (2021) - SiriusXM® Satellite Radio Mode — If Equipped - 1

text_image 10:10 89.9 101.9 94.7 103.3 All FM 101.9 AM/SXM Tune Info Audio

Uconnect 3 With 5-inch Display Changing To SirlusXM®

SiriusXM® Satellite Radio uses direct satellite-to-receiver broadcasting technology to provide clear, coast-to-coast radio content. SiriusXM® is a subscription-based service.

Visit siriusxm.com/getallaccess or review your SiriusXM® Radio pamphlet in your Owner's Manual kit for more information.

SiriusXM® services require subscriptions, sold separately after the trial included with the new vehicle purchase. If you decide to continue your service at the end of your trial subscription, the plan you choose will automatically renew and

bill at then-current rates until you call SiriusXM® at 866-635-2349 to cancel. See SiriusXM® Customer Agreement for complete terms at www.siriusxm.com (US) or www.siriusxm.ca (Canada).

All fees and programming subject to change. SiriusXM® satellite service is available only to those at least 18 and older in the 48 contiguous USA and D.C. Our SiriusXM® satellite service is also available in Canada and Puerto Rico (with coverage limitations). SiriusXM® Internet radio service is available throughout their satellite service area and in AK. © 2020 SiriusXM® Radio Inc. SiriusXM® and all related marks and logos are trademarks of SiriusXM® Radio Inc.

This functionality is only available for radios equipped with a Satellite receiver. In order to receive satellite radio, the vehicle needs to be outside with a clear view to the sky.

If the screen shows Acquiring Signal, you might have to change the vehicle's position in order to receive a signal. In most cases, the satellite radio does not receive a signal in underground parking garages or tunnels.

250 MULTIMEDIA

No Subscription

Radios equipped with a Satellite receiver require a subscription to the SiriusXM® Service. When the Radio does not have the necessary subscription, the Radio is able to receive the Preview channel only.

Acquiring SiriusXM® Subscription

To activate the SiriusXM® Satellite Radio subscription, US residents visit siriusxm.com/getallaccess or call: 1-800-643-2112

Canadian residents visit https://www.siriusxm.ca/ or call: 1-888-539-7474.

NOTE:

You will need to provide the SiriusXM® ID (RID) located at the bottom of the Channel 0 screen.

The Satellite Mode is activated by a press of the SXM button on the touchscreen.

When in Satellite Mode:

  • The SXM button on the touchscreen is highlighted.
  • The SiriusXM® Presets are displayed at the top of the screen.
  • The SiriusXM® Channel Number is displayed in the center.
  • The Program Information is displayed at the bottom of the Channel Number.
  • The SiriusXM® function buttons are displayed below the Program Information.

Tuning is done by operating the Tune Knob or by Direct Tune, similar to other Radio Bands.

In addition to the tuning operation functions common to all radio modes, the replay, Traffic/Weather button, and Favorite button functions are available in SiriusXM® Mode.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image 10:10 121 29 68 135 All (sxm) SONG ARTIST Browse AM/FM Tune Info 1 2 3 4 5

Uconnect 3 With 5-Inch Display SirlusXM® Satellite Radio

1-Browse
2 – Radio Bands
3 – Direct Tune
4 - Info Button
5 - Next Button

Replay

The replay function provides a means to store and replay up to 22 minutes of music audio and 48 minutes of talk radio. Once the channel is switched, content in replay memory is lost.

Press the Replay button on the touchscreen. The play/pause, rewind/forward and live buttons will display at the top of the screen, along with the replay time. You can exit by pressing the Replay button on the touchscreen any time during the Replay Mode.

Play/PauseRAM 4500 Chassis Cab (2021) - Replay - 1Press the Pause/Play button on the touchscreen to pause the playing of live or rewound content at any time. Play can be resumed by pressing the Pause/Play button again on the touchscreen.
RewindRAM 4500 Chassis Cab (2021) - Replay - 2Press the Rewind button on the touchscreen to rewind the content in steps of five seconds. Pressing the Rewind button on the touchscreen for more than two seconds rewinds the content. The radio begins playing the content at the point at which the press is released.
ForwardRAM 4500 Chassis Cab (2021) - Replay - 3Each press of the Forward button on the touchscreen forwards the content in steps of five seconds. Forwarding of the content can only be done when the content is previously rewound, and therefore, cannot be done for live content. A continuous press of the Forward button on the touchscreen also forwards the content. The radio begins playing the content at the point at which the press is release.
Live LivePress the Live button on the touchscreen to resume the playing of live content.

Favorites

Press the Favorites button on the touchscreen to activate the favorites menu, which will time out within 20 seconds in absence of user interaction.

You can exit the Favorites Menu by a press of the X button.

The favorites feature enables you to set a favorite artist or song that is currently playing. The radio then uses this information to alert you when either the favorite artist or song is being played at any time by any of the SiriusXM® Channels.

The maximum number of favorites that can be stored in the Radio is 50.

Favorite Artist: While the song is playing, to set a favorite artist, press the Favorites button on the touchscreen and then the Favorite Artist button on the touchscreen.

Favorite Song: While the song is playing, to set a favorite song, press the Favorites button on the touchscreen and then the Favorite Song button on the touchscreen.

Browse In SXM

Press the Browse button on the touchscreen to edit Presets, Favorites, Game Zone, and Jump settings, along with providing the SiriusXM® Channel List.

This Screen contains many submenus. You can exit submenus to return to a parent menu by pressing the Back arrow.

All

Press the All button on the Browse Screen. When pressing the All button, the following categories become available:

  • Channel List Press the Channel List to display all the SiriusXM® Channel Numbers. You can scroll the Channel List by pressing the Up and Down arrows, located on the right side of the screen. Scrolling can also be done by operating the Tune/Scroll knob.
  • Genre List Press the Genre button on the touchscreen to display a list of Genres. You can select any desired Genre by pressing the Genre List. The radio tunes to a channel with the content in the selected Genre.

Favorites

Press the Favorites button on the Browse screen.

The Favorites menu provides a means to edit the Favorites list and to configure the Alert Settings, along with providing a list of Channels currently airing any of the items in the Favorites list. You can scroll the Favorites list by pressing the Up and Down arrows located at the right side of the screen. Scrolling can also be done by operating the Tune/Scroll knob as well.

Remove Favorites

Press the Remove Favorites tab at the top of the screen. Press the Delete All button on the touchscreen to delete all of the Favorites or press the Trash Can icon next to the Favorite to be deleted.

Alert Settings

Press the Alert Settings tab at the top of the Favorites screen. The Alert Settings menu allows you to choose from a visual alert or audible and visual alert when one of your favorites is airing on any of the SiriusXM® channels.

Game Zone

Press the Game Zone button, located at the left of the Browse screen. This feature provides you with the ability to select teams, edit the selection, and set alerts.

On-Air

Press the On-Air tab at the top of the screen. The On-Air list provides a list of Channels currently airing any of the items in the Selections list, and pressing any of the items in the list tunes the radio to that channel.

Add/Delete — If Equipped

Press the Add/Delete button on the touchscreen to activate the League Scroll list. Press the chosen league and a scroll list of all teams within the league will appear, then you can select a team by pressing the corresponding box. A check mark appears for all teams that are chosen.

Remove Selection/Trash Can Icon

Press the Remove Selection tab at the top of the screen. Press the Delete All button on the touchscreen to delete all of the selections or press the Trash Can icon next to the selection to be deleted.

Alert Settings

Press the Alert Setting tab at the top of the screen. The Alert Settings menu allows you to choose from "Alert me to on-air games upon start" or "Alert upon score update" or both when one or more of your selections is airing on any of the SiriusXM® channels.

Tune Start

Tune Start begins playing the current song from the beginning when you tune to a music channel using one of the 12 presets. This feature occurs the first time the preset is selected during that current song.

Setting Presets

RAM 4500 Chassis Cab (2021) - Setting Presets - 1

text_image 10:10 89.9 101.9 94.7 103.3 All FM 101.9 AM/SXM Tune Info Audio

Uconnect 3 With 5-Inch Display Radio Presets

The Presets are available for all Radio Modes, and are activated by pressing any of the Preset buttons, located at the top of the screen.

When you are on a station that you wish to save as a preset, press and hold the numbered button on the touchscreen for more than two seconds.

The Radio stores up to 12 presets in each of the Radio Modes.

For the Uconnect 3 With 5-inch Display

A set of four presets will appear on the screen. Press the All button to view all saved presets. To remove a saved preset, a new preset must be saved over the old one.

Audio Settings

Press the Audio button within the settings main menu to activate the Audio Settings screen.

RAM 4500 Chassis Cab (2021) - Audio Settings - 1

text_image Audio 1 Balance / Fade 2 Equalizer 3 Speed Adj Vol 4 Surround 5 Loudness 6 Aux Offset 7 Radio Off

Uconnect 3 With 5-inch Display

1 - Balance/Fade
2 - Equalizer
3 — Speed Adjusted Volume
4 – Surround Sound
5 - Loudness
6 - AUX Volume Offset
7 — Radio Off With Door — If Equipped

Audio Setting Description
Balance/FadePress the Balance/Fade button on the touchscreen to balance audio between the front speakers or fade the audio between the rear and front speakers. Press the Front, Rear, Left or Right buttons or press and drag the red Speaker icon to adjust the Balance/Fade.
EqualizerPress the + or - buttons or press and drag the level bar to increase or decrease each of the equalizer bands. The level value, which spans between plus or minus nine, is displayed at the top of each of the bands.
Speed Adjusted VolumeThe Speed Adjusted Volume is adjusted by selecting from “Off”, “1”, “2”, and “3”. This alters the automatic adjustment of the audio volume with variation to vehicle speed. Volume increases automatically as speed increases to compensate for normal road noise.
Surround Sound — If EquippedWhen Surround Sound is on, you can hear audio coming from every direction as in a movie theatre or home theatre system.
Loudness — If Equipped When Loudness is on, the sound quality at lower volumes improves.
AUX Volume OffsetThe AUX Volume Offset is adjusted by pressing + and - buttons. This alters the AUX input audio volume. The level value, which spans between plus or minus three, is displayed above the adjustment bar.
Auto Play — If EquippedThe Auto Play feature begins playing music as soon as a USB Media device is connected to one of the vehicle’s Media USB ports, when it is turned on. Press “Off” to turn the setting off.
Radio Off With Door — If EquippedThe Radio Off With Door feature, when activated, keeps the radio on until the driver or passenger door is opened or when the Radio Off Delay selected time has expired.

MEDIA MODE

Operating Media Mode

RAM 4500 Chassis Cab (2021) - Operating Media Mode - 1

text_image 10:10 Artist Name Song Title 1:15 3:25 Browse Source Info 3 4 5 6 7

Uconnect 3 With 5-inch Display Operating Media Mode

1 – Seek Down ◀◀
2 – Seek Up ▶▶
3-Browse
4 - Source
5 - Pause/Play
6 - Info
7 - More Options

Media Mode is entered by pushing the MEDIA button located on the faceplate.

Audio Source Selection

Once in Media Mode, press the Source or Source Select button on the touchscreen and the desired mode button on the touchscreen. USB, AUX, and Bluetooth® are the Media sources available. When available, you can select the Browse button on the touchscreen to be given these options:

  • Now Playing
  • Artists
  • Albums
  • Genres
  • Songs
  • Playlists
  • Folders

For the Uconnect 3 With 5-inch Display, Media Mode is entered by pushing the Media button located on the faceplate.

Types of Media Modes

USB Mode

Overview

USB Mode is entered by either inserting a USB device into the USB Port, or by pushing the MEDIA button on the faceplate and then selecting the USB button.

On the Uconnect 3 With 5-inch Display, if you insert a USB device with the ignition ON, the unit will switch to USB Mode and begin to play. The display will show the track number and index time in minutes and seconds. Play will begin at the start of track 1.

Bluetooth® Mode

Overview

Bluetooth® Streaming Audio or Bluetooth® Mode is entered by pairing a Bluetooth® device, containing music, to the Uconnect system.

Before proceeding, the Bluetooth® device must be paired to the Uconnect Phone to communicate with the Uconnect system.

On the Uconnect 3 With 5-inch Display, push the MEDIA button located on the faceplate. Once in Media Mode, press the Source button on the touchscreen and select the Bluetooth® button page 258.

To access Bluetooth® Mode, press the Bluetooth® button on the left side of the touchscreen or under the Source Select/Select Source button (if equipped).

AUX Mode

Overview

Auxiliary Mode (AUX) is entered by inserting an AUX device using a cable with a 3.5 mm audio jack into the AUX port or pushing the MEDIA button on the faceplate and then selecting the Source button and then the AUX button.

To insert an Auxiliary device, gently insert the Auxiliary device cable into the AUX Port. If you insert an Auxiliary device with the ignition and the radio on, the unit will switch to AUX Mode and begin to play.

Controlling The Auxiliary Device

The control of the Auxiliary device (e.g., selecting playlists, play, fast forward, etc.) cannot be provided by the radio; use the device controls instead. Adjust the volume with the Volume button, Volume/Mute rotary knob, or the On/Off rotary knob, or with the volume of the attached device.

NOTE:

The radio unit is acting as the amplifier for audio output from the Auxiliary device. Therefore, if the volume control on the Auxiliary device is set too low, there will be insufficient audio signal for the radio unit to play the music on the device.

Seek Up ▶/Seek Down ◀

In USB Mode, press the Seek Up button on the touchscreen for the next selection on the USB device. Press and release the Seek Down button on the touchscreen to return to the beginning of the current selection, or to return to the beginning of the previous selection if the USB device is within the first three seconds of the current selection.

In Bluetooth® Mode, press and release the Seek Up button on the touchscreen for the next selection on the Bluetooth® device. Press and

release the Seek Down button on the touchscreen to return to the beginning of the current selection, or return to the beginning of the previous selection if the Bluetooth® device is within the first second of the current selection.

Browse

In USB Mode, press the Browse button on the touchscreen to display the browse window. In USB Mode, the left side of the browse window displays a list of ways you can browse through the contents of the USB device. If supported by the device, you can browse by Folder, Artist, Playlist, Album, Song, etc. Press the desired button on the touchscreen on the left side of the screen. The center of the browse window shows items and its sub-functions, which can be scrolled through by pressing the Up and Down buttons to the right. The Tune/Scroll knob can also be used to scroll.

On the Uconnect 3 With 5-inch Display, rotate the Browse button on the touchscreen to scroll through and select a desired track on the device. Press the Exit button on the touchscreen if you wish to cancel the Browse function.

Media Mode

In USB Mode, press the Media button on the touchscreen to select the desired audio source: USB.

In Bluetooth® Mode, press the Media button on the touchscreen to select the desired audio source: Bluetooth®.

In AUX Mode, press the Media button on the touchscreen to select the desired audio source: AUX.

Repeat

In USB Mode, press the Repeat button on the touchscreen to toggle the repeat functionality. The Repeat button on the touchscreen is highlighted when active. The Radio will continue to play the current track, repeatedly, as long as the repeat is active. Press the Repeat button again to enter Repeat All. The radio will continue to play all the current tracks, repeatedly, as long as the repeat function is active. To cancel Repeat, press the Repeat button a third time.

Shuffle

In USB Mode, press the Shuffle button on the touchscreen to play the selections on the USB device in random order to provide an interesting change of pace. Press the Shuffle button on the touchscreen a second time to turn this feature off.

Audio

Audio settings can be accessed by pressing the Audio button ↩ page 247.

Info

In both Disc and USB Modes, press the Info button on the touchscreen to display the current track information. Press the Info or X button on the touchscreen a second time to cancel this feature.

Tracks

In both Disc and USB Modes, press the Tracks button on the touchscreen to display a pop-up with the Song List. The song currently playing is indicated by an arrow and lines above and below the song title. When in the Tracks List screen you can rotate the Tune/Scroll knob to highlight a track (indicated by the line above and below the track name) and then push the Enter/Browse knob to start playing that track. In Bluetooth® Mode, if the Bluetooth® device supports this feature, press the Tracks button on the touchscreen to display a pop-up with the Song List. The currently playing song is indicated by a red arrow and lines above and below the song title.

Pressing the Tracks button on the touchscreen while the pop-up is displayed will close the pop-up.

Media Voice Commands

Uconnect offers connections via USB, Bluetooth®, and auxiliary (AUX) ports. Voice operation is only available for connected USB and AUX devices.

Push the VR button located on the steering wheel. After the beep, say one of the following commands and follow the prompts to switch your media source or choose an artist.

  • "Change source to Bluetooth®"
  • "Change source to AUX"
  • "Change source to USB"
  • "Play artist Beethoven"; "Play album Greatest Hits"; "Play song Moonlight Sonata"; "Play genre Classical"

Did You Know: Press the Browse button on the touchscreen to see all of the music on your USB device. Your Voice Command must match exactly how the artist, album, song, and genre information is displayed.

PHONE MODE

Overview

Uconnect Phone is a voice-activated, hands-free, in-vehicle communications system. It allows you to dial a phone number with your mobile phone.

The feature supports the following:

Voice Activated Features

  • Hands-Free dialing via Voice ("Call John Smith Mobile" or "Dial 248-555-1212").
  • Hands-Free text-to-speech listening of your incoming SMS messages.
  • Hands-Free Text Message Replying: Forward one of 18 predefined SMS messages to incoming calls/text messages.
  • Redialing last dialed numbers ("Redial").
  • Calling Back the last incoming call number ("Call Back").

  • Viewing call logs on screen ("Show Incoming Calls," "Show Outgoing Calls," "Show Missed Calls," or "Show Recent Calls").

  • Searching Contacts phone number ("Search for John Smith Mobile").

Screen Activated Features

  • Dialing via Keypad using touchscreen.
  • Viewing and Calling contacts from Phonebooks displayed on the touchscreen.
  • Setting Favorite Contact phone numbers so they are easily accessible on the Main Phone screen.
  • Viewing and Calling contacts from Recent Call logs.
  • Reviewing your recent Incoming SMS Messages.
  • Pairing up to 10 phones/audio devices for easy access to connect to them quickly.

NOTE:

Your phone must be capable of SMS messaging via Bluetooth® for messaging features to work properly.

Your mobile phone's audio is transmitted through your vehicle's audio system; the system will automatically mute your radio when using the Uconnect Phone.

For Uconnect customer support:

  • US visit UconnectPhone.com or call 877-855-8400
  • Canada visit UconnectPhone.com or call 800-465-2001 (English) or (French) call 800-387-9983

Uconnect Phone allows you to transfer calls between the system and your mobile phone as you enter or exit your vehicle and enables you to mute the system's microphone for private conversation.

WARNING!

ALWAYS drive safely with your hands on the steering wheel. You have full responsibility and assume all risks related to the use of the Uconnect features and applications in this vehicle. Only use Uconnect when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

The Phone feature is driven through your Bluetooth® "Hands-Free Profile" mobile phone. Uconnect features Bluetooth® technology — the global standard that enables different electronic devices to connect to each other without wires or a docking station. Ensure you phone is turned on with Bluetooth® active and has been paired to the Uconnect system. Up to 10 mobile phones or audio devices are allowed to be linked to the system. Only one linked (or paired) mobile phone and one audio device can be used with the system at a time.

Phone Button

The Phone button on your steering wheel is used to get into the Phone Mode and make calls, show recent, incoming or outgoing calls, view phonebook, etc. When you press the button you will hear a BEEP. The BEEP is your signal to give a command.

Voice Command Button

The Voice Command button on your steering wheel is only used for "barge in" and when you are already in a call or want to make another call.

The button on your steering wheel is also used to access the Voice Commands for the Uconnect Voice Command features if your vehicle is equipped.

Phone Operation

Operation

Voice commands can be used to operate the Uconnect Phone and to navigate its menu structure. Voice commands are required after most Uconnect Phone prompts. There are two general methods for how Voice Command works:

  1. Say compound commands like "Call John Smith mobile".
  2. Say the individual commands and allow the system to guide you to complete the task.

You will be prompted for a specific command and then guided through the available options.

  • Prior to giving a voice command, one must wait for the beep, which follows the "Listen" prompt or another prompt.
  • For certain operations, compound commands can be used. For example, instead of saying "Call" and then "John Smith" and then "mobile", the following compound command can be said: "Call John Smith mobile."

- For each feature explanation in this section, only the compound command form of the voice command is given. You can also break the commands into parts and say each part of the command when you are asked for it. For example, you can use the compound command form voice command "Search for John Smith," or you can break the compound command form into two voice commands: "Search Contacts" and when asked, "John Smith." Please remember, the Uconnect Phone works best when you talk in a normal conversational tone, as if speaking to someone sitting a few feet/meters away from you.

Natural Speech

Your Uconnect Phone Voice system uses a Natural Language Voice Recognition (VR) engine.

Natural speech allows the user to speak commands in phrases or complete sentences. The system filters out certain non-word utterances and sounds such as "ah" and "eh." The system handles fill-in words such as "I would like to".

The system handles multiple inputs in the same phrase or sentence such as "make a phone call" and "to Kelly Smith". For multiple inputs in the same phrase or sentence, the system identifies the topic or context and provides the associated follow-up prompt such as "Who do you want to call?" in the case where a phone call was requested but the specific name was not recognized.

The system utilizes continuous dialog. When the system requires more information from the user, it will ask a question to which the user can respond without pushing the Voice Command button on the steering wheel.

Help Command

If you need assistance at any prompt, or if you want to know your options at any prompt, say "Help" following the beep.

To activate the Uconnect Phone from idle, simply push the Phone button (if active) on your steering wheel and say a command or say "Help". All Phone sessions begin with a push of the VR button or the Phone button.

Cancel Command

At any prompt, after the beep, you can say "Cancel" and you will be returned to the main menu.

You can also push the VR button or Phone button on your steering wheel when the system is listening for a command and be returned to the main or previous menu.

Pair (Link) Uconnect Phone To A Mobile Phone

Use this QR code to access your digital experience.

RAM 4500 Chassis Cab (2021) - Cancel Command - 1

To begin using your Uconnect Phone, you must pair your compatible Bluetooth®-enabled mobile phone. Mobile phone pairing is the process of establishing a wireless connection between a cellular phone and the Uconnect system.

To complete the pairing process, you will need to reference your mobile phone's manual.

Please visit UconnectPhone.com for complete mobile phone compatibility information.

RAM 4500 Chassis Cab (2021) - Cancel Command - 2

text_image Add Device 1 Paired Audio 2 3 Exit 4 Paired Phones

Uconnect 3 With 5-inch Display

NOTE:

  • You must have Bluetooth® enabled on your phone to complete this procedure.
  • The vehicle must be in PARK or at a standstill.

Follow the steps below to pair your phone:

  1. Place the ignition in the ACC or ON/RUN position.
  2. Press the Phone button.

NOTE:

  • If there are no phones currently connected with the system, a pop-up will appear asking if you would like to pair a mobile phone.
  • This pop-up only appears when the user enters Phone Mode and no other device(s) have previously been paired. If the system has a phone previously paired, even if no phone is currently connected with the system, this pop-up will not appear.

  • Select "Yes" to begin the pairing process.

  • Search for available devices on your Bluetooth®-enabled mobile phone.

  • Press the Settings button on your mobile phone.

  • Select "Bluetooth®" and ensure it is enabled. Once enabled, the mobile phone will begin to search for Bluetooth® connections.

NOTE:

During the pairing procedure, you may receive a pop-up on your touchscreen asking you to make sure the PIN on the touchscreen matches the PIN from the pop-up on your mobile phone.

  1. If "No" is selected, and you still would like to pair a mobile phone, press the Pairing or Settings button from the Uconnect Phone main screen.

  2. Press the Paired Phones button.

  3. Search for available devices on your Bluetooth®-enabled mobile phone (see below). When prompted on the phone, select "Uconnect" and accept the connection request.

  4. Uconnect Phone will display an in-progress screen while the system is connecting.

  5. When your mobile phone finds the Uconnect system, select "Uconnect."

  6. When prompted on the mobile phone, accept the connection request from Uconnect.
  7. When the pairing process has successfully completed, the system will prompt you to choose whether or not this is your favorite phone. Selecting "Yes" will make this phone the highest priority. This phone will take precedence over other paired phones within range and will connect to the Uconnect system automatically when entering the

vehicle. Only one mobile phone and/or one Bluetooth® audio device can be connected to the Uconnect system at a time. If "No" is selected, simply select "Uconnect" from the mobile phone/audio device Bluetooth® screen, and the Uconnect system will reconnect to the Bluetooth® device.

NOTE:

For phones which are not made a favorite, the phone priority is determined by the order in which it was paired. The most recent phone paired will have the higher priority.

NOTE:

During the pairing procedure, you may receive a pop-up on your mobile phone for the Uconnect system to access your "messages" and "contacts". Selecting "Ok" or "Allow" will sync your contacts with the Uconnect system.

You can also use the following VR command to bring up the Paired Phone screen from any screen on the radio:

• "Show Paired Phones"

NOTE:

Software updates on your phone or the Uconnect system may interfere with the Bluetooth® connection. If this happens, simply repeat the pairing process. However, first make sure to delete the device from the list of phones on your Uconnect system. Next, be sure to remove Uconnect from the list of devices in your phone's Bluetooth® settings.

Connecting To A Particular Mobile Phone Or Audio Device After Pairing

Uconnect Phone will automatically connect to the highest priority paired phone and/or Audio Device within range. If you need to choose a particular phone or audio device follow these steps:

  1. Press the Settings button on the touchscreen.
  2. Press the Paired Phones/Audio Sources buttons.
  3. Press to select the particular phone or the particular audio device. A pop-up menu will appear; press "Connect Phone".
  4. Press the X to exit out of the Settings screen.

Disconnecting or Deleting A Phone Or Audio Device

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image Options 1 Disconnect Device 2 Make Favorite 3 Delete Device ×

Uconnect 3 With 5-Inch Display

1 – Disconnect Device Or Disconnect Phone
2 - Make Favorite
3 – Delete Device/Phone

  1. Press the Uconnect Phone Pairing or Settings button.
  2. Press the Paired Phones/Audio Sources buttons.
  3. Press the Settings button located to the right of the device name for a different phone or audio device than the currently connected device or press the preferred Connected Phone from the list.

  4. The option's pop-up will be displayed.

  5. Press the Disconnect Device or the Delete Device button on the touchscreen.
  6. Press the X to exit out of the Settings screen.

Making A Phone Or Audio Device A Favorite

  1. On the Paired Phone/Audio sources screen, press the Settings button located to the right of the device name for a different phone or audio device than the currently connected device or press the preferred "Connected Phone" from the list.

  2. The option's pop-up will be displayed.

  3. Press the Make Favorite button on the touchscreen; you will see the chosen device move to the top of the list.

  4. Press the X to exit out of the Settings screen.

Phonebook Download (Automatic Phonebook Transfer From Mobile Phone) — If Equipped

If supported by your phone, Uconnect Phone has the ability to download contact names and number entries from the mobile phone's phonebook. Specific Bluetooth® Phones with Phonebook Access Profile may support this feature. Your mobile phone may receive a pop-up asking for permission for the Uconnect system to access your messages and contacts. Selecting "Ok" or "Allow" will sync your contacts with the Uconnect system.

See the Uconnect website, UconnectPhone.com, for supported phones.

  • To call a name from a downloaded mobile phonebook, follow the procedure in the "Voice Command" in this section.
  • Automatic download and update of a phonebook, if supported, begins as soon as the Bluetooth® wireless phone connection is made to the Uconnect Phone, for example, after you start the vehicle.
  • A maximum of 5,000 contact names with four numbers per contact will be downloaded and updated every time a phone is connected to the Uconnect Phone.

  • Depending on the maximum number of entries downloaded, there may be a short delay before the latest downloaded names can be used. Until then, if available, the previously downloaded phonebook is available for use.

  • Only the phonebook of the currently connected mobile phone is accessible.
  • This downloaded phonebook cannot be edited or deleted on the Uconnect Phone. These can only be edited on the mobile phone. The changes are transferred and updated to Uconnect Phone on the next phone connection.

Managing Your Favorites — If Equipped

There are two ways you can add an entry to your favorites:

  1. After loading the mobile phonebook, press the Favorites button on the touchscreen, and then press one of the +Add Favorite Contact buttons that appears on the list.

  2. After loading the mobile phonebook, select "Contacts" from the Phone main screen, and then select the appropriate number. Press the Down Arrow button next to the selected number to display the option's pop-up. In the pop-up, select "Add to Favorites".

NOTE:

If the Favorites list is full, you will be asked to remove an existing favorite.

To Remove A Favorite — If Equipped

  1. To remove a Favorite, select "Favorites" from the Phone main screen.
  2. Next, select the Down Arrow icon next to the contact you want to remove from your favorites. This will bring up the options for that Favorite contact.
  3. Deselect the Star icon to delete the Favorite.

Phone Call Features

The following features can be accessed through the Uconnect Phone if the feature(s) are available and supported by Bluetooth® on your mobile service plan. For example, if your mobile service plan provides three-way calling, this feature can be accessed through the Uconnect Phone. Check with your mobile service provider for the features that you have.

Listed below are the phone options with Uconnect:

  • Redial
    • Dial by pressing in the number
  • Voice Commands (Dial by Saying a Name, Call by Saying a Phonebook Name, Redial or Call Back)
  • Favorites
  • Mobile Phonebook
  • Recent Call Log
  • SMS Message Viewer

Call Controls

The touchscreen allows you to control the following call features:

RAM 4500 Chassis Cab (2021) - Call Controls - 1

text_image 10:10 Test Phone Answer Ignore Private Number Incoming call... Mute Transfer Recent Calls Settings

Uconnect 3 With 5-inch Display

1 - Answer
2 - Mute/Unmute
3 – Ignore
4 - Transfer

Other phone call features include:

  • End Call
  • Hold/Unhold/Resume
  • Swap two active calls

Key Pad Number Entry

  1. Press the Phone button.
  2. Press the Dial/Keypad button on the touchscreen.
  3. The Touch-Tone screen will be displayed.
  4. Use the numbered buttons on the touchscreens to enter the number and press "Dial/Call".

Recent Calls — If Equipped

You may browse a list of the most recent of each of the following call types:

  • All Calls
  • Incoming Calls or Calls Received
    • Outgoing Calls or Calls Made
  • Missed Calls

These can be accessed by pressing the Recent Calls button on the phone main screen.

You can also push the VR button on your steering wheel and perform the above operation.

For example, say "Show my incoming calls".

Answer Or Ignore An Incoming Call — No Call Currently In Progress

When you receive a call on your mobile phone, the Uconnect Phone will interrupt the vehicle audio system. Push the Phone button on the steering wheel, press the Answer button on the touchscreen.

RAM 4500 Chassis Cab (2021) - Recent Calls — If Equipped - 1

text_image 10:10 Test Phone Answer Ignore Private Number Incoming call... Mute Transfer Recent Calls Settings

Uconnect 3 With 5-inch Display

1 - Answer Button
2 - Caller ID Box

Answer Or Ignore An Incoming Call — Call Currently In Progress

If a call is currently in progress and you have another incoming call, you will hear the same network tones for call waiting that you normally hear when using your mobile phone. Push the Phone button on the steering wheel, press the Answer button on the touchscreen, or press the Caller ID box to place the current call on hold and answer the incoming call.

NOTE:

Phones that are compatible with the Uconnect system in the market today do not support rejecting an incoming call when another call is in progress. Therefore, the user can only answer an incoming call or ignore it.

Do Not Disturb

With Do Not Disturb, you can disable notifications from incoming calls and texts, allowing you to keep your eyes on the road and hands on the wheel. For your convenience, there is a counter display to keep track of your missed calls and text messages while Do Not Disturb is active.

Do Not Disturb can automatically reply with a text message, a call, or both when declining an incoming call and send it to voicemail.

Automatic reply messages can be:

  • "I am driving right now, I will get back to you shortly".
  • Create a custom auto reply message up to 160 characters.

NOTE:

Only the first 25 characters can be seen on the touchscreen while typing a custom message.

While in Do Not Disturb, Conference Call can be selected so you can still place a second call without being interrupted by incoming calls.

NOTE:

  • Reply with text message is not compatible with iPhones®.
  • Auto reply with text message is only available on phones that support Bluetooth® Message Access Profile (MAP).

266 MULTIMEDIA

Place/Retrieve A Call From Hold

During an active call, press the Hold or Call On Hold button on the Phone main screen.

Making A Second Call While Current Call Is In Progress

You can place a call on hold by pressing the Hold button on the Phone main screen, then dial a number from the keypad (if supported by your mobile phone), recent calls, SMS Inbox or from the phonebooks.

Toggling Between Calls

RAM 4500 Chassis Cab (2021) - MULTIMEDIA - 1

text_image 10:10 Test Phone Swap Calls Phone Contact 1 Call Time 00:31 End Phone Contact 2 Call Held Mute Transfer Join Calls Recent Calls Settings

Uconnect 3 With 5-inch Display

If two calls are in progress (one active and one on hold), press the Swap Calls button on the phone main screen. Only one call can be placed on hold at a time.

You can also push the Phone button to toggle between the active and held phone call.

Join Calls

When two calls are in progress (one active and one on hold), press the Join/Merge Calls button on the Phone main screen to combine all calls into a conference call.

Call Termination

To end a call in progress, momentarily press the End Call button on the touchscreen or the Phone End button on the steering wheel. Only the active call(s) will be terminated and if there is a call on hold, it will become the new active call.

Redial

Push the VR button and after the "Listening" prompt and the following beep, say "Redial."

The Uconnect Phone will call the last number that was dialed from your mobile phone.

Call Continuation

Call continuation is the progression of a phone call on the Uconnect Phone after the vehicle ignition has been switched to OFF.

NOTE:

The call will remain within the vehicle audio system until the phone becomes out of range for the Bluetooth® connection. It is recommended to press the Transfer button on the touchscreen when leaving the vehicle.

Advanced Phone Connectivity

Transfer Call To And From Mobile Phone

The Uconnect Phone allows ongoing calls to be transferred from your mobile phone without terminating the call. To transfer an ongoing call from your connected mobile phone to the Uconnect Phone or vice versa, press the Transfer button on the Phone main screen.

Things You Should Know About Uconnect Phone

Voice Command

For the best performance:

● Always wait for the beep before speaking
- Speak normally, without pausing, just as you would speak to a person sitting a few feet/meters away from you
- Ensure that no one other than you is speaking during a voice command period
- Low-To-Medium Blower Setting
● Low-To-Medium Vehicle Speed
- Low Road Noise
- Smooth Road Surface
- Fully Closed Windows
• Dry Weather Conditions

WARNING!

ALWAYS drive safely with your hands on the wheel. You have full responsibility and assume all risks related to the use of the Uconnect features and applications in this vehicle. Only use Uconnect when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

Even though the system is designed for many languages and accents, the system may not always work for some.

NOTE:

It is recommended that you do not store names in your Favorites phonebook while the vehicle is in motion.

Number and name recognition rate is optimized when the entries are not similar. You can say "O" (letter "O") for "O" (zero).

Even though international dialing for most number combinations is supported, some shortcut dialing number combinations may not be supported.

Audio Performance

Audio quality is maximized under:

  • Low-To-Medium Blower Setting
  • Low-To-Medium Vehicle Speed
  • Low Road Noise
  • Smooth Road Surface
  • Fully Closed Windows
    • Dry Weather Conditions
    • Operation From The Driver's Seat

Performance such as audio clarity, echo, and loudness to a large degree rely on the phone and network, and not the Uconnect Phone.

Echo at the far end can sometimes be reduced by lowering the in-vehicle audio volume.

Phone Voice Commands

Making and answering hands-free phone calls is easy with Uconnect. When the Phonebook button is illuminated on your touchscreen, your system is ready. Check UconnectPhone.com for mobile phone compatibility and pairing instructions.

Push the Phone button and wait for the beep to say a command. See some examples below:

  • "Call John Smith"
    • "Dial 123 456 7890"
  • "Redial" (call previous outgoing phone number)
  • "Call back" (call previously answered incoming phone number)

Did You Know: When providing a Voice

Command, push the Phone button and say "Call", then pronounce the name exactly as it appears in your phonebook. When a contact has multiple phone numbers, you can say "Call John Smith work".

Voice Text Reply — If Equipped

Uconnect can announce incoming text messages. Push the VR button or Phone button and say:

  1. "Listen" to have the system read an incoming text message. (Must have compatible mobile phone paired to Uconnect system.)

  2. "Reply" after an incoming text message has been read.

Listen to the Uconnect prompts. After the beep, repeat one of the predefined messages and follow the system prompts.

PRE-DEFINED VOICE TEXT REPLY RESPONSES
Yes.Stuck in traffic.See you later.
No.Start without me.I'll be late.
Okay.Where are you?I will be 5 <or 10, 15, 20, 25, 30, 45, 60>minutes late.
Call me.Are you there yet?
I'll call you later.I need directions.See you in 5 <or 10, 15, 20, 25, 30, 45, 60>minutes.
I'm on my way.Can't talk right now.
I'm lost. Thanks.

NOTE:

Only use the numbering listed in the provided table. Otherwise, the system will not transpose the message.

Did You Know: Your mobile phone must have the full implementation of the Message Access Profile (MAP) to take advantage of this feature. For details about MAP, visit UconnectPhone.com.

Apple® iPhone® iOS 6 or later supports reading incoming text messages only. For further information on how to enable this feature on your Apple® iPhone®, refer to your iPhone's® "User Manual".

Did You Know: Voice Text Reply is not compatible with iPhone®, but if your vehicle is equipped with Siri® Eyes Free, you can use your voice to send a text message.

Siri® Eyes Free — If Equipped

When used with your Apple® iPhone® connected to your vehicle via Bluetooth®, Siri lets you use your voice to send text messages, select media, place phone calls and much more. Siri uses your natural language to understand what you mean and responds back to confirm your requests.

The system is designed to keep your eyes on the road and your hands on the wheel by letting Siri help you perform useful tasks.

To enable Siri, push and hold, then release the Uconnect Voice Recognition (VR) button on the steering wheel. After you hear a double beep, you can ask Siri to play podcasts and music, get directions, read text messages, and many other useful requests.

Mobile phones may lose connection to the Uconnect Phone. When this happens, the connection can generally be re-established by restarting the mobile phone. Your mobile phone is recommended to remain in Bluetooth® ON mode.

Power-Up

After switching the ignition key from OFF to either the ON/RUN or ACC position, or after a language change, you must wait at least 15 seconds prior to using the system → page 449.

Under certain conditions, the mobile phone being on in your vehicle can cause erratic or noisy performance from your radio. This condition may be lessened or eliminated by relocating the mobile phone antenna. This condition is not harmful to the radio. If your radio performance does not satisfactorily "clear" by the repositioning of the antenna, it is recommended that the radio volume be turned down or off during mobile phone operation when not using Uconnect (if equipped).

REGULATORY AND SAFETY INFORMATION

USA/CANADA

Exposure to Radio Frequency Radiation

The radiated output power of the internal wireless radio is far below the FCC and IC radio frequency exposure limits. Nevertheless, the wireless radio will be used in such a manner that the radio is 8 in (20 cm) or further from the human body.

The internal wireless radio operates within guidelines found in radio frequency safety standards and recommendations, which reflect the consensus of the scientific community.

The radio manufacturer believes the internal wireless radio is safe for use by consumers. The level of energy emitted is far less than the electromagnetic energy emitted by wireless devices such as mobile phones. However, the use of wireless radios may be restricted in some situations or environments, such as aboard airplanes. If you are unsure of restrictions, you are encouraged to ask for authorization before turning on the wireless radio ➤ page 449.

OFF-ROAD PAGES — IF EQUIPPED

Your vehicle may be equipped with Off-Road Pages which display vehicle information related to the drivetrain, transfer case, and coolant/oil gauges.

To access Off-Road Pages, press the Apps button on the touchscreen, and then select Off-Road Pages.

RAM 4500 Chassis Cab (2021) - OFF-ROAD PAGES — IF EQUIPPED - 1

text_image 68 ° 12:00 68 ° Phone Heated Wheel Mirror Dimmer Drive Modes Climate Settings Driver Heat App Manager Media Nav Off-Road Pages Psgr Heat Media Controls Climate Apps Nav Phone Settings 1 2 *** Main Menu

1 - Uconnect Apps Button

2 - Off-Road Pages App

OFF-ROAD PAGES STATUS BAR

The Off-Road Pages Status Bar is located along the bottom of Off-Road Pages and is present in each of the three selectable page options. It provides information for the following items:

  1. Transfer Case Status
  2. Latitude/Longitude
  3. Altitude of the vehicle
  4. Status of Hill Descent Control and Speed in MPH (km/h)

RAM 4500 Chassis Cab (2021) - OFF-ROAD PAGES STATUS BAR - 1

text_image 68° 7:07 71° Off Road Pages Vehicle Dynamics Accessory Gauges Pitch & Roll Forward Facing Camers 4L 18° Steering Angle 4L 83°13'44" N 42°39'22" W Altitude 928 ft 5 Off Road Controls Climate Apps NE Nav Phone Settings 1 2 3 4 Status Bar 2WD/4WD

1 – Transfer Case Status
2 – Latitude/Longitude
3 - Altitude
4 – Hill Descent Control Status

VEHICLE DYNAMICS

The Vehicle Dynamics page displays information concerning the vehicle's transfer case and steering angle.

The following information is displayed:

  1. Status of Transfer Case
  2. Status of Front Axles – If Equipped
  3. Status of the Rear Axles
  4. Steering angle in degrees

RAM 4500 Chassis Cab (2021) - VEHICLE DYNAMICS - 1

text_image 68° Off Road Page Vehicle Dynamics Accessory Gauges Pitch & Roll Forward Facing Camera Front Side Locker Locked 4L Steering Angle 83°13'44" N 42°59'27" W 18° 1 2 3 7:07 71° Altitude 928 R 5 OFF Road Controls Climate Apps NE Nav Phone Settings

Drivetrain Menu 2WD/4WD

1 – Transfer Case Status
2 - Front Axle Locker Status
3 - Steering Angle
4 – Rear Axle Locker Status

ACCESSORY GAUGE

The Accessory Gauge page displays the current status of the vehicle's Coolant Temperature, Oil Temperature, Oil Pressure, Transmission Temperature, and Battery Voltage.

RAM 4500 Chassis Cab (2021) - ACCESSORY GAUGE - 1

text_image 68° 7:07 71° Off Road Pages Vehicle Dynamics Accessory Gauges Pitch & Roll Forward Facing Camera 4L 83°19' 4" N 42°20' 2" W Battery Voltage Alto 528 V 5 am Off Road Controls Climate Apps NE Nav Phone Settings

Accessory Gauge Menu 2WD/4WD

1 - Coolant Temperature
2 - Oil Temperature
3 - Oil Pressure
4 – Transmission Temperature
5 - Battery Voltage

272 MULTIMEDIA

PITCH & ROLL

The Pitch & Roll page displays the vehicle's current pitch (angle up and down) and roll (angle side to side) in degrees. The Pitch & Roll gauge provide a visualization of the current vehicle angle.

RAM 4500 Chassis Cab (2021) - PITCH &amp; ROLL - 1

text_image 68° 7:07 71° Off Road Pages Vehicle Dynamics Accessory Gauges Pitch & Roll Forward Facing Camera 4L B "13'44" N A "39'23"W Altitude 928 R 5 sec Off Road Controls Climate Apps NE Nav Phone Settings

Pitch & Roll Menu 2WD/4WD

1 - Current Pitch
2 - Current Roll

FORWARD FACING CAMERA

Your vehicle may be equipped with a Forward Facing Camera that allows you to see an on-screen image of the front view of your vehicle. The image will be displayed on the touchscreen along with a caution note "Check Entire Surroundings" across the top of the screen.

To activate, press the Forward Facing Camera button on the touchscreen.

RAM 4500 Chassis Cab (2021) - FORWARD FACING CAMERA - 1

text_image 68° 7:07 71° Off Road Pages Vehicle Dynamics 89°F C H 89°F C H 40 pm Coolant Temp Oil Temp L Oil Pressure Pitch & Roll Forward Facing Cameras 83°13'44" N 42°59'22" W Battery Voltage Altitude 928 ft 5 am Off Road Controls Climate Apps NE Nav Phone Settings

Forward Facing Camera Button

SAFETY

SAFETY FEATURES

The ABS provides increased vehicle stability and brake performance under most braking conditions. The system automatically prevents wheel lock, and enhances vehicle control during braking.

The ABS performs a self-check cycle to ensure that the ABS is working properly each time the vehicle is started and driven. During this self-check, you may hear a slight clicking sound as well as some related motor noises.

ABS is activated during braking when the system detects one or more wheels are beginning to lock. Road conditions such as ice, snow, gravel, bumps, railroad tracks, loose debris, or panic stops may increase the likelihood of ABS activation(s).

You also may experience the following normal characteristics when ABS activates:

  • The ABS motor noise or clicking sounds (you may continue to hear for a short time after the stop)
  • Brake pedal pulsations
  • A slight drop of the brake pedal at the end of the stop

ABS is designed to function with the Original Equipment Manufacturer (OEM) tires. Modification may result in degraded ABS performance.

WARNING!

- The ABS contains sophisticated electronic equipment that may be susceptible to interference caused by improperly installed or high output radio transmitting equipment. This interference can cause possible loss of anti-lock braking capability. Installation of such equipment should be performed by qualified professionals.

(Continued)

WARNING! (Continued)

  • Pumping of the Anti-Lock Brakes will diminish their effectiveness and may lead to a collision. Pumping makes the stopping distance longer. Just press firmly on your brake pedal when you need to slow down or stop.
  • The ABS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded.
  • The ABS cannot prevent collisions, including those resulting from excessive speed in turns, following another vehicle too closely, or hydroplaning.
  • The capabilities of an ABS equipped vehicle must never be exploited in a reckless or dangerous manner that could jeopardize the user's safety or the safety of others.

Anti-Lock Brake System (ABS) Warning Light

The yellow ABS Warning Light will turn on when the ignition is placed in the ON/RUN mode and may stay on for as long as four seconds.

If the ABS Warning Light remains on or comes on while driving, it indicates that the anti-lock portion of the brake system is not functioning and that service is required. However, the conventional brake system will continue to operate normally if the ABS Warning Light is on.

If the ABS Warning Light is on, the brake system should be serviced as soon as possible to restore the benefits of Anti-Lock brakes. If the ABS Warning Light does not come on when the ignition is placed in the ON/RUN mode, have the light repaired as soon as possible.

Your vehicle is equipped with an advanced Electronic Brake Control (EBC) system. This system includes Anti-Lock Brake System (ABS), Brake Assist System (BAS), Electronic Brake Force Distribution (EBD), Hill Start Assist (HSA), Electronic Roll Mitigation (ERM), Electronic Stability Control (ESC), and Traction Control System (TCS). These systems work together to enhance both vehicle stability and control in various driving conditions.

Your vehicle may also be equipped with Trailer Sway Control (TSC) and Hill Descent Control (HDC).

Brake Assist System (BAS)

The BAS is designed to optimize the vehicle's braking capability during emergency braking maneuvers. The system detects an emergency braking situation by sensing the rate and amount of brake application and then applies optimum pressure to the brakes. This can help reduce braking distances. The BAS complements the Anti-Lock Brake System (ABS). Applying the brakes very quickly results in the best BAS assistance. To receive the benefit of the system, you must apply continuous braking pressure during the stopping sequence (do not "pump" the brakes). Do not reduce brake pedal pressure unless braking is no longer desired. Once the brake pedal is released, the BAS is deactivated.

WARNING!

The Brake Assist System (BAS) cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase the traction afforded by prevailing road conditions. BAS cannot prevent collisions, including those resulting from excessive speed in turns, driving on very slippery surfaces, or hydroplaning. The capabilities of a BAS-equipped vehicle must never be exploited in a reckless or dangerous manner, which could jeopardize the user's safety or the safety of others.

Brake System Warning Light

The red Brake System Warning Light will turn on when the ignition is placed in the ON/RUN mode and may stay on for as long as four seconds.

If the Brake System Warning Light remains on or comes on while driving, it indicates that the brake system is not functioning properly and that immediate service is required. If the Brake System Warning Light does not come on when the ignition is placed in the ON/RUN mode, have the light repaired as soon as possible.

Electronic Brake Force Distribution (EBD)

EBD manages the distribution of the braking torque between the front and rear axles by limiting braking pressure to the rear axle. This is done to prevent overslip of the rear wheels to avoid vehicle instability, and to prevent the rear axle from entering ABS before the front axle.

Electronic Roll Mitigation (ERM)

ERM anticipates the potential for wheel lift by monitoring the driver's steering wheel input and the speed of the vehicle. When ERM determines that the rate of change of the steering wheel angle and vehicle's speed are sufficient to potentially cause wheel lift, it then applies the appropriate brake and may also reduce engine power to lessen the chance that wheel lift will occur. ERM can only reduce the chance of wheel lift occurring during severe or evasive driving maneuvers; it cannot prevent wheel lift due to other factors, such as road conditions, leaving the roadway, or striking objects or other vehicles.

NOTE:

ERM is disabled any time the ESC is in "Full Off" mode (if equipped). For a complete explanation of the available ESC modes, see ➔ page 275.

WARNING!

Many factors, such as vehicle loading, road conditions and driving conditions, influence the chance that wheel lift or rollover may occur. ERM cannot prevent all wheel lift or roll overs, especially those that involve leaving the roadway or striking objects or other vehicles. The capabilities of an ERM-equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user's safety or the safety of others.

Electronic Stability Control (ESC)

ESC enhances directional control and stability of the vehicle under various driving conditions. ESC corrects for oversteering or understeering of the vehicle by applying the brake of the appropriate wheel(s) to counteract the above conditions. Engine power may also be reduced to help the vehicle maintain the desired path.

  • Oversteer — when the vehicle is turning more than appropriate for the steering wheel position.
  • Understeer — when the vehicle is turning less than appropriate for the steering wheel position.

ESC uses sensors in the vehicle to determine the vehicle path intended by the driver and compares it to the actual path of the vehicle. When the actual path does not match the intended path, ESC applies the brake of the appropriate wheel to assist in counteracting the oversteer or understeer condition.

The ESC Activation/Malfunction Indicator Light located in the instrument cluster will start to flash as soon as the ESC system becomes active. The ESC Activation/Malfunction Indicator Light also flashes when the TCS is active. If the ESC Activation/Malfunction Indicator Light begins to flash during acceleration, ease up on the accelerator and apply as little throttle as possible. Be sure to adapt your speed and driving to the prevailing road conditions.

WARNING!

- Electronic Stability Control (ESC) cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase the traction afforded by prevailing road conditions. ESC cannot prevent accidents, including those resulting from excessive speed in turns, driving on very slippery surfaces, or hydroplaning. ESC also cannot prevent accidents resulting from loss of vehicle control due to inappropriate driver input for the conditions. Only a safe, attentive, and skillful driver can prevent accidents. The capabilities of an ESC equipped vehicle must never be exploited in a reckless or dangerous manner which could jeopardize the user's safety or the safety of others.

(Continued)

WARNING! (Continued)

- Vehicle modifications, or failure to properly maintain your vehicle, may change the handling characteristics of your vehicle, and may negatively affect the performance of the ESC system. Changes to the steering system, suspension, braking system, tire type and size or wheel size may adversely affect ESC performance. Improperly inflated and unevenly worn tires may also degrade ESC performance. Any vehicle modification or poor vehicle maintenance that reduces the effectiveness of the ESC system can increase the risk of loss of vehicle control, vehicle rollover, personal injury and death.

ESC Operating Modes

Depending upon model and mode of operation, the ESC system may have multiple operating modes.

ESC On

This is the normal operating mode for the ESC system. Whenever the vehicle is started, the ESC system will be in this mode. This mode should be used for most driving conditions. Alternate ESC modes should only be used for specific reasons as noted in the following paragraphs.

Partial Off

This mode may be useful if the vehicle becomes stuck. This mode may modify TCS and ESC thresholds for activation, which allows for more wheel spin than normally allowed.

To enter the "Partial Off" mode, momentarily push the ESC OFF button and the ESC OFF Indicator Light will illuminate. To turn the ESC on again, momentarily push the ESC OFF button and the ESC OFF Indicator Light will turn off.

NOTE:

For vehicles with multiple partial ESC modes, the push and release of the button will toggle the ESC modes. Multiple attempts may be required to return to "ESC On" mode.

WARNING!

  • When in "Partial Off" mode, the TCS functionality of ESC, except for the limited slip feature described in the TCS section, has been disabled and the ESC OFF Indicator Light will be illuminated. When in "Partial Off" mode, the engine power reduction feature of TCS is disabled, and the enhanced vehicle stability offered by the ESC system is reduced.
  • Trailer Sway Control (TSC) is disabled when the ESC system is in the "Partial Off" mode.

Full Off — If Equipped

This mode is intended for off-highway or off-road use only and should not be used on any public roadways. In this mode, TCS and ESC features are turned off. To enter the "Full Off" mode, push and hold the ESC OFF button for five seconds while the vehicle is stopped with the engine running. After five seconds, a chime will sound, the ESC OFF Indicator Light will illuminate, and the "ESC OFF" message will display in the instrument cluster. To turn ESC on again, momentarily push the ESC OFF button.

NOTE:

System may switch from ESC "Full Off" to "Partial Off" mode when vehicle exceeds a predetermined speed. When the vehicle speed slows below the predetermined speed the system will return to ESC "Full Off".

ESC modes may also be affected by drive modes (if equipped).

WARNING!

  • In the ESC “Full Off” mode, the engine torque reduction and stability features are disabled. Therefore, enhanced vehicle stability offered by the ESC system is unavailable. In an emergency evasive maneuver, the ESC system will not engage to assist in maintaining stability. ESC “Full Off” mode is intended for off-highway or off-road use only.

(Continued)

WARNING! (Continued)

  • The Electronic Stability Control (ESC) cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase the traction afforded by prevailing road conditions. ESC cannot prevent all accidents, including those resulting from excessive speed in turns, driving on very slippery surfaces, or hydroplaning. ESC also cannot prevent collisions.

ESC Activation/Malfunction Indicator Light And ESC OFF Indicator Light

RAM 4500 Chassis Cab (2021) - ESC Activation/Malfunction Indicator Light And ESC OFF Indicator Light - 1

The ESC Activation/Malfunction Indicator Light in the instrument cluster will come on when the ignition is placed in the ON mode. It should go out with the engine running. If the ESC Activation/Malfunction Indicator Light comes on continuously with the engine running, a malfunction has been detected in the ESC system. If this light remains on after several ignition cycles, and the vehicle has been driven several miles (kilometers) at speeds greater than 30 mph (48 km/h), see an authorized dealer as soon as possible to have the problem diagnosed and corrected.

278 SAFETY

The ESC Activation/Malfunction Indicator Light starts to flash as soon as the tires lose traction and the ESC system becomes active. The ESC Activation/Malfunction Indicator Light also flashes when TCS is active. If the ESC Activation/Malfunction Indicator Light begins to flash during acceleration, ease up on the accelerator and apply as little throttle as possible. Be sure to adapt your speed and driving to the prevailing road conditions.

RAM 4500 Chassis Cab (2021) - SAFETY - 1

The ESC OFF Indicator Light indicates that the Electronic Stability Control (ESC) is in a reduced mode.

NOTE:

  • The ESC Activation/Malfunction Indicator Light and the ESC OFF Indicator Light come on momentarily each time the ignition is placed in the ON position.
  • Each time the ignition is placed in the ON position, the ESC system will be on even if it was turned off previously.
  • The ESC system will make buzzing or clicking sounds when it is active. This is normal; the sounds will stop when ESC becomes inactive following the maneuver that caused the ESC activation.

Hill Descent Control (HDC) — If Equipped

HDC is intended for low speed off-road driving while in 4WD Low. HDC maintains vehicle speed while descending hills during various driving situations. HDC controls vehicle speed by actively controlling the brakes.

HDC Has Three States:

  1. Off (feature is not enabled and will not activate).
  2. Enabled (feature is enabled and ready but activation conditions are not met, or driver is actively overriding with brake or throttle application).
  3. Active (feature is enabled and actively controlling vehicle speed).

Enabling HDC

HDC is enabled by pushing the HDC switch, but the following conditions must also be met to enable HDC:

• The driveline is in 4WD Low.
- The vehicle speed is below 5 mph (8 km/h).
• The parking brake is released.
• The driver door is closed.

Activating HDC

Once HDC is enabled it will activate automatically if driven down a grade of sufficient magnitude. The set speed for HDC is selectable by the driver, and can be adjusted by using the gear shift +/- . The following summarizes the HDC set speeds:

HDC Target Set Speeds

  • P = No set speed. HDC may be enabled but will not activate.
    • R = 0.6 mph (1 km/h)
    • N = 1.2 mph (2 km/h)
    • D = 0.6 mph (1 km/h)
  • 1st = 0.6 mph (1 km/h)
  • 2nd = 1.2 mph (2 km/h)
  • 3rd = 1.8 mph (3 km/h)
  • 4th = 2.5 mph (4 km/h)
  • 5th = 3.1 mph (5 km/h)
  • 6th = 3.7 mph (6 km/h)
  • 7th = 4.3 mph (7 km/h)

  • 8th = 5.0 mph (8 km/h)

  • 9th = 5.6 mph (9 km/h) - If Equipped

NOTE:

During HDC the +/- shifter input is used for HDC target speed selection, but will not affect the gear chosen by the transmission. When actively controlling HDC the transmission will shift appropriately for the driver-selected set speed and corresponding driving conditions.

Driver Override

The driver may override HDC activation with throttle or brake application at any time.

Deactivating HDC

HDC will be deactivated but remain available if any of the following conditions occur:

  • Driver overrides HDC set speed with throttle or brake application.
  • Vehicle speed exceeds 20 mph (32 km/h) but remains below 40 mph (64 km/h).
  • Vehicle is on a downhill grade of insufficient magnitude, is on level ground, or is on an uphill grade.
  • Vehicle is shifted to PARK.

Disabling HDC

HDC will be deactivated and disabled if any of the following conditions occur:

  • The driver pushes the HDC switch.
    ● The driveline is shifted out of 4WD Low.
  • The parking brake is applied.
  • The driver door opens.
  • The vehicle is driven greater than 20 mph (32 km/h) for greater than 70 seconds.
  • The vehicle is driven greater than 40 mph (64 km/h) (HDC exits immediately).
    • HDC detects excessive brake temperature.

Feedback To The Driver

The instrument cluster has an HDC icon and the HDC switch has an LED icon, which offers feedback to the driver about the state HDC is in.

- The cluster icon and switch lamp will illuminate and remain on solid when HDC is enabled or activated. This is the normal operating condition for HDC.

  • The cluster icon and switch lamp will flash for several seconds then extinguish when the driver pushes the HDC switch but enable conditions are not met.
  • The cluster icon and switch lamp will flash for several seconds then extinguish when HDC disables due to excess speed.
  • The cluster icon and switch lamp will flash when HDC deactivates due to overheated brakes. The flashing will stop and HDC will activate again once the brakes have cooled sufficiently.

WARNING!

HDC is only intended to assist the driver in controlling vehicle speed when descending hills. The driver must remain attentive to the driving conditions and is responsible for maintaining a safe vehicle speed.

Hill Start Assist (HSA)

HSA is designed to mitigate roll back from a complete stop while on an incline. If the driver releases the brake while stopped on an incline, HSA will continue to hold the brake pressure for a short period. If the driver does not apply the throttle before this time expires, the system will release brake pressure and the vehicle will roll down the hill as normal.

The following conditions must be met in order for HSA to activate:

  • The feature must be enabled.
  • The vehicle must be stopped.
  • The parking brake must be off.
  • The driver door must be closed.
  • The vehicle must be on a sufficient grade.
  • The gear selection must match vehicle uphill direction (i.e., vehicle facing uphill is in forward gear; vehicle backing uphill is in REVERSE gear).

- HSA will work in REVERSE gear and all forward gears. The system will not activate if the transmission is in PARK or NEUTRAL. For vehicles equipped with a manual transmission, if the clutch is pressed, HSA will remain active.

WARNING!

There may be situations where the Hill Start Assist (HSA) will not activate and slight rolling may occur, such as on minor hills or with a loaded vehicle, or while pulling a trailer. HSA is not a substitute for active driving involvement. It is always the driver's responsibility to be attentive to distance to other vehicles, people, and objects, and most importantly brake operation to ensure safe operation of the vehicle under all road conditions. Your complete attention is always required while driving to maintain safe control of your vehicle. Failure to follow these warnings can result in a collision or serious personal injury.

Disabling And Enabling HSA

This feature can be turned on or turned off. To change the current setting, proceed as follows:

  • If disabling HSA using your instrument cluster display, see ➤ page 90 for further information.
  • If disabling HSA using Uconnect Settings, see page 228 for further information.

Towing With HSA

HSA will also provide assistance to mitigate roll back while towing a trailer.

WARNING!

- If you use a trailer brake controller with your trailer, the trailer brakes may be activated and deactivated with the brake switch. If so, there may not be enough brake pressure to hold both the vehicle and the trailer on a hill when the brake pedal is released. In order to avoid rolling down an incline while resuming acceleration, manually activate the trailer brake or apply more vehicle brake pressure prior to releasing the brake pedal.

(Continued)

WARNING! (Continued)

  • HSA is not a parking brake. Always apply the parking brake fully when exiting your vehicle. Also, be certain to place the transmission in PARK.
  • Failure to follow these warnings can result in a collision or serious personal injury.

Traction Control System (TCS)

TCS monitors the amount of wheel spin of each of the driven wheels. If wheel spin is detected, the TCS may apply brake pressure to the spinning wheel(s) and/or reduce engine power to provide enhanced acceleration and stability. A feature of the TCS, Brake Limited Differential (BLD), functions similarly to a limited slip differential and controls the wheel spin across a driven axle. If one wheel on a driven axle is spinning faster than the other, the system will apply the brake of the spinning wheel. This will allow more engine power to be applied to the wheel that is not spinning. BLD may remain enabled even if TCS and Electronic Stability Control (ESC) are in reduced modes.

Trailer Sway Control (TSC)

TSC uses sensors in the vehicle to recognize an excessively swaying trailer and will take the appropriate actions to attempt to stop the sway.

NOTE:

TSC cannot stop all trailers from swaying. Always use caution when towing a trailer and follow the trailer tongue weight recommendations → page 200.

When TSC is functioning, the ESC Activation/Malfunction Indicator Light will flash, the engine power may be reduced and you may feel the brakes being applied to individual wheels to attempt to stop the trailer from swaying. TSC is disabled when the ESC system is in the "Partial Off" or "Full Off" modes.

WARNING!

If TSC activates while driving, slow the vehicle down, stop at the nearest safe location, and adjust the trailer load to eliminate trailer sway.

AUXILIARY DRIVING SYSTEMS

FORWARD COLLISION WARNING (FCW) WITH MITIGATION — IF EQUIPPED

FCW with Mitigation provides the driver with audible warnings, visual warnings (within the instrument cluster display), and may apply a brake jerk to warn the driver when it detects a potential frontal collision. The warnings and limited braking are intended to provide the driver with enough time to react, avoid or mitigate the potential collision.

NOTE:

FCW monitors the information from the forward looking sensors as well as the Electronic Brake Controller (EBC), to calculate the probability of a forward collision. When the system determines that a forward collision is probable, the driver will be provided with audible and visual warnings as well as a possible brake jerk warning.

If the driver does not take action based upon these progressive warnings, then the system will provide a limited level of active braking to help slow the vehicle and mitigate the potential forward collision. If the driver reacts to the warnings by braking and the system determines that

the driver intends to avoid the collision by braking but has not applied sufficient brake force, the system will compensate and provide additional brake force as required.

If an FCW with Mitigation event begins at a speed below 32 mph (52 km/h), the system may provide the maximum braking possible to mitigate the potential forward collision. If the Forward Collision Warning with Mitigation event stops the vehicle completely, the system will hold the vehicle at standstill for two seconds and then release the brakes.

!BRAKE!

0616123823US

FCW Message

When the system determines a collision with the vehicle in front of you is no longer probable, the warning message will be deactivated ➤ page 449.

NOTE:

  • The minimum speed for FCW activation is 3 mph (5 km/h).
  • The FCW alerts may be triggered on objects other than vehicles such as guard rails or sign posts based on the course prediction. This is expected and is a part of normal FCW activation and functionality.
  • It is unsafe to test the FCW system. To prevent such misuse of the system, after four Active Braking events within a key cycle, the Active Braking portion of FCW will be deactivated until the next key cycle.
  • The FCW system is intended for on-road use only. If the vehicle is taken off-road, the FCW system should be deactivated to prevent unnecessary warnings to the surroundings.

WARNING!

Forward Collision Warning (FCW) is not intended to avoid a collision on its own, nor can FCW detect every type of potential collision. The driver has the responsibility to avoid a collision by controlling the vehicle via braking and steering. Failure to follow this warning could lead to serious injury or death.

Turning FCW On or Off

The FCW button is located in the Uconnect display in the control settings ↩ page 228.

NOTE:

  • When the FCW is "on", this allows the system to warn the driver of a possible collision with the vehicle in front.
  • When the FCW is "off", this prevents the system from warning the driver of a possible collision with the vehicle in front. If the FCW is set to "off", "FCW OFF" will be displayed in the instrument cluster display.

  • When FCW status is set to "Only Warning", this prevents the system from providing limited active braking, or additional brake support if the driver is not braking adequately in the event of a potential frontal collision.

  • When FCW status is set to "Warning and Braking", this allows the system to warn the driver of a possible collision with the vehicle in front using audible/visual warnings and it applies autonomous braking.
  • The FCW system state is defaulted to "Full On" from one ignition cycle to the next. If the system is turned off, it will reset to "Full On" when the vehicle is restarted.

FCW Braking Status And Sensitivity

The FCW sensitivity and Active Braking status are programmable through the Uconnect system ➤ page 228.

Far

- When the sensitivity of FCW is set to the "Far" setting and the system status is "Warning and Braking", this allows the system to warn the driver of a possible more distant collision with the vehicle in front using audible/visual warnings.

- More cautious drivers that do not mind frequent warnings may prefer this setting.

- Medium

- When the sensitivity of FCW is set to the "Medium" setting and the system status is "Warning and Braking", this allows the system to warn the driver of a possible collision with the vehicle in front using audible/visual warnings.

- Near

  • When the sensitivity of FCW is set to the "Near" setting and the system status is "Warning and Braking", this allows the system to warn the driver of a possible closer collision with the vehicle in front using audible/visual warnings.
  • This setting provides less reaction time than the "Far" and "Medium" settings, which allows for a more dynamic driving experience.
  • More dynamic or aggressive drivers that want to avoid frequent warnings may prefer this setting.

FCW Limited Warning

If the instrument cluster displays “ACC/FCW Limited Functionality” or “ACC/FCW Limited Functionality Clean Front Windshield” momentarily, there may be a condition that limits FCW functionality. Although the vehicle is still drivable under normal conditions, the active braking may not be fully available. Once the condition that limited the system performance is no longer present, the system will return to its full performance state. If the problem persists, see an authorized dealer.

Service FCW Warning

If the system turns off, and the instrument cluster displays:

  • ACC/FCW Unavailable Service Required
    • Cruise/FCW Unavailable Service Required

This indicates there is an internal system fault. Although the vehicle is still drivable under normal conditions, have the system checked by an authorized dealer.

TIRE PRESSURE MONITORING SYSTEM (TPMS)

(Vehicles Under 10K Gross Vehicle Weight Rating (GVWR) Only)

The Tire Pressure Monitoring System (TPMS) will warn the driver of a low tire pressure based on the vehicle recommended cold placard pressure.

NOTE:

The TPMS Warning Light will illuminate in the instrument cluster and a chime will sound when tire pressure is low in one or more of the four active road tires. In addition, the instrument cluster will display a graphic showing the pressure values of each tire with the low tire pressure values in a different color, or the Uconnect radio will display a TPMS message. When this occurs you must increase the tire pressure to the recommended cold placard pressure in order for the TPMS Warning Light to turn off.

The tire pressure will vary with temperature by about 1 psi (7 kPa) for every 12°F (6.5°C). This means that when the outside temperature decreases, the tire pressure will decrease. Tire pressure should always be set based on cold inflation tire pressure. This is defined as the tire pressure after the vehicle has not been driven for at least three hours, or driven less than 1 mile (1.6 km) after a three hour period. The cold tire inflation pressure must not exceed the maximum inflation pressure molded into the tire sidewall. The tire pressure will also increase as the vehicle is driven — this is normal and there should be no adjustment for this increased pressure.

See ➕ page 406 on how to properly inflate the vehicle's tires.

The TPMS will warn the driver of a low tire pressure if the tire pressure falls below the low-pressure warning limit for any reason, including low temperature effects and natural pressure loss through the tire.

The TPMS will continue to warn the driver of low tire pressure as long as the condition exists, and will not turn off until the tire pressure is at or above the recommended cold placard pressure. Once the low TPMS Warning Light illuminates, you must increase the tire pressure to the recommended cold placard pressure in order for the TPMS Warning Light to turn off. The system will automatically update and the TPMS Warning Light will turn off once the system receives the updated tire pressures. The vehicle may need to be driven for up to 20 minutes above 15 mph (24 km/h) in order for the TPMS to receive this information.

NOTE:

When filling warm tires, the tire pressure may need to be increased up to an additional 4 psi (28 kPa) above the recommended cold placard pressure in order to turn the TPMS Warning Light off.

For example, your vehicle may have a recommended cold (parked for more than three hours) placard pressure of 30 psi (207 kPa). If the ambient temperature is 68°F (20°C) and the measured tire pressure is 27 psi (186 kPa), a temperature drop to 20°F (-7°C) will decrease the tire pressure to approximately 23 psi (158 kPa). This tire pressure is sufficiently low enough to turn on the TPMS Warning Light. Driving the vehicle may cause the tire pressure to rise to approximately 27 psi (186 kPa), but the TPMS Warning Light will still be on. In this situation, the TPMS Warning Light will turn off only after the tires are inflated to the vehicle's recommended cold placard pressure value → page 449.

CAUTION!

  • The TPMS has been optimized for the original equipment tires and wheels. TPMS pressures and warning have been established for the tire size equipped on your vehicle. Undesirable system operation or sensor damage may result when using replacement equipment that is not of the same size, type, and/or style. Aftermarket wheels can cause sensor damage.
  • Using aftermarket tire sealants may cause the Tire Pressure Monitoring System (TPMS) sensor to become inoperable. After using an aftermarket tire sealant it is recommended that you take your vehicle to an authorized dealership to have your sensor function checked.
  • After inspecting or adjusting the tire pressure always reinstall the valve stem cap. This will prevent moisture and dirt from entering the valve stem, which could damage the TPMS sensor.

NOTE:

  • The TPMS is not intended to replace normal tire care and maintenance or to provide warning of a tire failure or condition.
  • If your vehicle is not equipped with the Tire Fill Alert feature the TPMS should not be used as a tire pressure gauge while adjusting your tire pressure.
  • Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability.
  • The TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure using an accurate tire pressure gauge, even if underinflation has not reached the level to trigger illumination of the TPMS Warning Light.
  • Seasonal temperature changes will affect tire pressure, and the TPMS will monitor the actual tire pressure in the tire.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image PSI XX XX XX XX

A0502000134US

Example: Tire Pressure Monitoring System Display

The Tire Pressure Monitoring System (TPMS) uses wireless technology with wheel rim mounted electronic sensors to monitor tire pressure levels. Sensors, mounted to each wheel as part of the valve stem, transmit tire pressure readings to the receiver module.

NOTE:

It is particularly important for you to check the tire pressure in all of the tires on your vehicle monthly and to maintain the proper pressure.

The TPMS consists of the following components:

  • Receiver module
  • Four Tire Pressure Monitoring System sensors
  • Various Tire Pressure Monitoring System messages, which display in the instrument cluster
  • Tire Pressure Monitoring System Warning Light

Tire Pressure Monitoring System Low Pressure Warnings

RAM 4500 Chassis Cab (2021) - Tire Pressure Monitoring System Low Pressure Warnings - 1

The Tire Pressure Monitoring System Warning Light will illuminate in the instrument cluster when tire pressure is low in one or more of the four active

road tires. The instrument cluster will display a graphic showing the pressure values of each tire with the low tire pressure values in a different color. An "Inflate to XX" message will also be displayed.

RAM 4500 Chassis Cab (2021) - Tire Pressure Monitoring System Low Pressure Warnings - 2

text_image Inflate Front to XX PSI XX XX XX XX

Inflate Rear to XX PSI Tire Pressure Example: Low Tire Pressure Display

Should this occur, you should stop as soon as possible and inflate the tires with a low pressure condition (those in a different color in the instrument cluster graphic) to the vehicle's recommended cold placard pressure inflation value as shown in the "Inflate to XX" message. Once the system receives the updated tire pressures, the system will automatically update, the graphic display in the instrument cluster will return to its original color, and the Tire Pressure Monitoring System Warning Light will turn off. The vehicle may need to be driven for up to 20 minutes above 15 mph (24 km/h) in order for the TPMS to receive this information.

NOTE:

When filling warm tires, the tire pressure may need to be increased up to an additional 4 psi (28 kPa) above the recommended cold placard pressure in order to turn the Tire Pressure Monitoring System Warning Light off.

Service TPMS Warning

If a system fault is detected, the Tire Pressure Monitoring System Warning Light will flash on and off for 75 seconds and then remain on solid. In addition, the instrument cluster will display a "SERVICE TPM SYSTEM" message for a minimum of five seconds and then display dashes (- - ) in place of the pressure value to indicate which sensor is not being received.

If the ignition switch is cycled, this sequence will repeat, providing the system fault still exists. If the system fault no longer exists, the Tire Pressure Monitoring System Warning Light will no longer flash, and the "SERVICE TPM SYSTEM" message will no longer display, and a pressure

value will display in place of the dashes. A system fault can occur due to any of the following:

  • Signal interference due to electronic devices or driving next to facilities emitting the same radio frequencies as the TPMS sensors.
  • Installing aftermarket window tinting that contains materials that may block radio wave signals.
  • Accumulation of snow or ice around the wheels or wheel housings.
    • Using tire chains on the vehicle.
  • Using wheels/tires not equipped with TPMS sensors.

A system fault may occur due to an incorrect TPMS sensor location condition. When a system fault occurs due to an incorrect TPMS sensor location, the Tire Pressure Monitoring System Warning Light will flash on and off for 75 seconds and then remain on solid. The system fault will also sound a chime. In addition, the instrument cluster will display a "Tire Pressure Temporarily Unavailable" message in place of the tire pressure display screen. If the ignition switch is cycled, this sequence will repeat, providing the system fault still exists. If the system fault no longer exists, the Tire Pressure Monitoring System Indicator Light will no longer flash and the tire pressure display screen will be displayed showing the tire pressure values in the correct locations.

Vehicles With Non-Matching Full Size Spare Or Compact Spare

  • The non-matching full size spare or compact spare tire does not have a TPMS sensor. Therefore, the TPMS will not monitor the pressure in the non-matching full size spare or compact spare tire.
  • If you install the non-matching full size spare or compact spare tire in place of a road tire that has a pressure below the low-pressure warning limit, upon the next ignition switch cycle, the TPMS Warning Light and a "LOW TIRE" message will remain on and a chime will sound. In addition, the graphic in the instrument cluster will still display a pressure value in a different color and an "Inflate to XX" message.
  • After driving the vehicle for up to 20 minutes above 15 mph (24 km/h), the TPMS Warning Light will flash on and off for 75 seconds and then remain on solid. In addition, the instru-

ment cluster will display a "SERVICE TPM SYSTEM" message for a minimum of five seconds and then display dashes (- -) in place of the pressure value.

  • For each subsequent ignition switch cycle, a chime will sound, the TPMS Warning Light will flash on and off for 75 seconds and then remain on solid, and the instrument cluster will display a "SERVICE TPM SYSTEM" message for a minimum of five seconds and then display dashes (- -) in place of the pressure value.
  • Once you repair or replace the original road tire and reinstall it on the vehicle in place of the non matching full size spare or compact spare, the TPMS will update automatically. In addition, the TPMS Warning Light will turn off and the graphic in the instrument cluster will display a new pressure value instead of dashes (- -), as long as no tire pressure is below the low-pressure warning limit in any of the four active road tires. The vehicle may need to be driven for up to 20 minutes above 15 mph (24 km/h) in order for the TPMS to receive this information.

Trailer Tire Pressure Monitoring System (TTPMS) — If Equipped

The Trailer Tire Pressure Monitoring System (TTPMS) is a feature that displays the trailer tire pressure values and warns the driver of a low tire pressure event based on the drivers set target tire pressure value, through TTPMS settings found in the radio.

The TTPMS monitors the pressure of each tire and warns the driver through the instrument cluster, when either a low tire pressure condition falls below 25% of the driver's set pressure or if a system malfunction occurs. The instrument cluster will display the actual tire pressure or dashes for each of the trailer tires in the correct trailer position, based on trailer configuration. The TTPMS can support up to 12 trailer tires per configured trailer on up to four configurable trailers ➕ page 228.

RAM 4500 Chassis Cab (2021) - Trailer Tire Pressure Monitoring System (TTPMS) — If Equipped - 1

text_image 54 MPH Current Settings 39 psi 42 42 42 42 42 42 Trailer Tire Pressure 014021

Trailer Tire Pressure Monitoring System

Trailer Tire Pressure Sensor Pairing

In order use this feature, the provided tire pressure sensors must be installed in the desired trailer tires and the sensors must be paired to the truck. If the target trailer requires more than the provided four sensors, additional sensors can be purchased at an authorized Ram dealership.

With the sensors installed and the trailer near or connected to your Ram truck, initiate the pairing process by entering the settings menu in the radio and select trailer. Select the desired trailer profile to pair to, open the "Tire Pressure" menu, and hit "Setup All Tires" → page 228.

NOTE:

The Vehicle may not be driven until the pairing process is complete.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image 68° Settings > Trailer > Trailer 1 Use this Trailer Braking (Light Electric Surge None) Tire Pressure X items in lot Radio Controls Climate Apps Non Phone Settings

Trailer Tire Pressure Settings

RAM 4500 Chassis Cab (2021) - NOTE: - 2

text_image 68° 12:00 Settings > Trailer > Trailer 1 > Tire Pressure One at a time, deflate each trailer tire approx. 3 PSI in the order shown. Wait for a horn chip before moving to the next time. It may take up to 3 minutes for the vehicle to pair each sensor. Press START to begin pairing START Radio Controls Climate Apps Non Phone Settings

Trailer Tire Pressure Pairing

Follow the on screen prompts to select the number of axles (1 - 3), the number of trailer tires (2, 4, 6, 8, or 12), and the set trailer tire pressure. The range is selectable anywhere between 25-125 psi (172-862 kPa).

Once psi (kPa) is programmed, the pairing screen appears. Tire sensors must be paired in order shown. Starting with Tire 1, deflate tire by 5 psi (34 kPa) and wait for a horn chirp. It may take up to three minutes for the chirp to occur, indicating that the sensor has paired. Repeat process on each tire, in order, until complete. Do not exit the pairing screen until process is complete. If pairing was unsuccessful, a double horn chirp will sound, and a prompt on the touchscreen will allow you to retry the procedure; “Retry” will only appear when setup fails. Each tire must be successfully paired during a single pairing process to receive the success screen.

NOTE:

If the pairing process times out after three minutes of no communication with a sensor, a double horn chirp will occur indicating the pairing has failed and a message will display on the radio indicating the process was unsuccessful. Under certain circumstances, the double horn chirp may continue to happen every three minutes indicating the failed pairing. If this happens, the horn chirping may be canceled by cycling the ignition button OFF and then back to ON/RUN position.

Tire Pressure Monitoring System Low Pressure Warnings

When a low tire pressure in one or more of the active road tires is detected, the instrument cluster will display a message stating "Trailer Tire Pressure Low". The instrument cluster will then display the TTPMS graphic showing the pressure values of each tire with the low tire pressure values in a different color.

Should this occur, you should stop as soon as possible and inflate the tires with a low pressure condition (those in a different color in the instrument cluster graphic) to the customer programmed target tire pressure value as shown at the top of the TTPMS instrument cluster graphic. Once the tire(s) are inflated, the system will automatically update the graphic display in the instrument cluster, returning to its original color. The vehicle may need to be driven for up to 10 minutes above 15 mph (24 km/h) in order for the TTPMS to receive the updated information.

Service TTPMS Warning

If a system fault is detected, the instrument cluster will display a "Trailer Tire Pressure System Service Required" message for a minimum of five seconds.

Once the system fault is corrected the "Trailer Tire Pressure System Service Required" message will no longer be displayed. The vehicle may need to be driven for up to 10 minutes above 15 mph (24 km/h) in order for the TTPMS to receive the trailer tire pressure information.

Trailer Tire Pressure System Not Configured

A "Trailer Tire Pressure System Not Configured" message will be displayed in the Instrument Cluster on the TTPMS instrument cluster graphic when a trailer number is selected that has not had trailer tire pressure sensors paired page 228.

Trailer Sensors Detected Do Not Match Active Trailer

The “Trailer Sensors Detected Do Not Match Active Trailer” message will be displayed in the instrument cluster when the trailer sensors being received by the TTPMS module do not match the trailer sensors paired to the current trailer number selected. This message will be displayed when the sensors being received completely match the sensors paired to another trailer number configured in the TTPMS module.

To correct this condition, the correct trailer number must be selected in the radio page 228.

Tire Fill Alert — If Equipped

This feature notifies the user when the placard tire pressure is attained while inflating or deflating the tire.

The customer may choose to disable or enable the Tire Fill Alert feature through use of the customer settings in the radio.

NOTE:

  • Only one tire can be filled at a time when using the Tire Fill Alert system.
  • The Tire Fill Alert feature cannot be entered if an existing TPMS fault is set to "active" or if the system is in deactivation mode (if equipped).

The system will be activated when the TPMS receiver module detects a change in tire pressure. The ignition must be in the RUN mode, with the transmission in PARK (P).

NOTE:

It is not required to have the engine running to enter Tire Fill Alert mode.

The hazard lamps will come on to confirm the vehicle is in Tire Fill Alert mode.

If the hazard lamps do not come on while inflating the tire, the TPMS sensor may be in a null spot preventing the TPMS sensor signal from being received. In this case, the vehicle may need to be moved either forward or backward slightly to exit the null spot.

When Tire Fill Alert mode is entered, the tire pressure display screen will be displayed in the instrument cluster.

Operation:

  • The horn will chirp once to let the user know when to stop filling the tire, when it reaches recommended pressure.
  • The horn will chirp three times if the tire is overfilled and will continue to chirp every five seconds if the user continues to inflate the tire.
  • The horn will chirp once again when enough air is let out to reach proper inflation level.
  • The horn will also chirp three times if the tire is then underinflated and will continue to chirp every five seconds if the user continues to deflate the tire.

Selectable Tire Fill Alert (STFA) — If Equipped

The Selectable Tire Fill Alert (STFA) system is an optional feature that is included as part of the normal Tire Fill Alert system. The system is designed to allow the customer to select a pressure to inflate or deflate the vehicle's front and rear axle tires to and to provide feedback to the customer while inflating or deflating the vehicle's tires.

In the Selectable Tire Fill Alert application, which is located in the apps menu of the Uconnect system, the customer will be able to select a pressure setting for both the front and rear axle tire pressures by scrolling through a pressure range from XX to 15 psi in 1 psi increments for each axle setting. XX = the vehicle's cold placard pressure values for the front and rear axles as shown on the vehicle placard pressure label.

The customer may also store the pressure values chosen for each axle in the radio as a preset pressure. The customer will be allowed to store up to two sets of preset values in the radio for the front and rear axle pressure values. Once the customer selects the tire pressures for the front and rear axles that they want to inflate or deflate to, they can begin inflating or deflating one tire at a time.

NOTE:

The STFA system will only support inflating or deflating one tire at a time.

The system will be activated when the TPMS receiver module detects a change in tire pressure. The ignition must be in the RUN mode, with the transmission in PARK (P).

The hazard lamps will come on to confirm the vehicle is in Tire Fill Alert mode.

If the hazard lamps do not come on while inflating or deflating the tire, the TPMS sensor may be in a null spot preventing the TPMS sensor signal from being received. In this case, the vehicle may need to be moved either forward or backward slightly to exit the null spot.

When Tire Fill Alert mode is entered, the tire pressure display screen will be displayed in the instrument cluster.

Operation:

  • The horn will chirp once when the selected pressure is reached to let the user know when to stop inflating or deflating the tire.
  • The horn will chirp three times if the tire is overinflated or over deflated and will continue to chirp every five seconds if the user continues to inflate or deflate the tire.
  • The horn will chirp once again when enough air is added or removed to reach proper selected pressure level.

Tire Pressure Information System (TPIS) 3500/4500/5500 Series Trucks

Your vehicle may be equipped with a Tire Pressure Information System (TPIS).

The Tire Pressure Information System (TPIS) uses wireless technology with wheel rim mounted electronic sensors to transmit tire pressure levels. Sensors mounted to each wheel as part of the valve stem transmit tire pressure readings to the receiver module.

NOTE:

It is particularly important for you to check the tire pressure in all of the tires on your vehicle monthly and to maintain the proper pressure.

The TPIS consists of the following components:

  • Receiver module
  • Four TPMS sensors (Single Rear Wheel (SRW) applications)
  • Six TPMS sensors (Dual Rear Wheel (DRW) applications)
    ● Pressure display in the instrument cluster

The TPIS system will display all four (Single Rear Wheel (SRW) applications) or six (Dual Rear Wheel (DRW) applications) tire pressure values in the instrument cluster display.

If a system fault is detected, the instrument cluster will display a "SERVICE TPM SYSTEM" message for a minimum of five seconds and then display dashes (- -) in place of the pressure value to indicate which sensor is not being received.

If the ignition switch is cycled, this sequence will repeat, providing the system fault still exists. If the system fault no longer exists, the "SERVICE TPM SYSTEM" message will no longer be displayed, and a pressure value will display in place of the dashes. A system fault can occur due to any of the following:

  • Signal interference due to electronic devices or driving next to facilities emitting the same radio frequencies as the TPMS sensors.
  • Installing aftermarket window tinting that contains materials that may block radio wave signals.
  • Accumulation of snow or ice around the wheels or wheel housings.
  • Using tire chains on the vehicle.
  • Using wheels/tires not equipped with TPMS sensors.

OCCUPANT RESTRAINT SYSTEMS

Some of the most important safety features in your vehicle are the restraint systems:

OCCUPANT RESTRAINT SYSTEMS FEATURES

  • Seat Belt Systems
  • Supplemental Restraint Systems (SRS) Air Bags
  • Child Restraints

Some of the safety features described in this section may be standard equipment on some models, or may be optional equipment on others. If you are not sure, ask an authorized dealer.

IMPORTANT SAFETY PRECAUTIONS

Please pay close attention to the information in this section. It tells you how to use your restraint system properly, to keep you and your passengers as safe as possible.

Here are some simple steps you can take to minimize the risk of harm from a deploying air bag:

  1. Children 12 years old and under should always ride buckled up in the rear seat of a vehicle with a rear seat.
  2. A child who is not big enough to wear the vehicle seat belt properly must be secured in the appropriate child restraint or belt-positioning booster seat in a rear seating position ↩ page 312.
  3. If a child from 2 to 12 years old (not in a rear-facing child restraint) must ride in the front passenger seat, move the seat as far back as possible and use the proper child restraint ↩ page 312.
  4. Never allow children to slide the shoulder belt behind them or under their arm.

  5. You should read the instructions provided with your child restraint to make sure that you are using it properly.

  6. All occupants should always wear their lap and shoulder belts properly.
  7. The driver and front passenger seats should be moved back as far as practical to allow the front air bags room to inflate.
  8. Do not lean against the door or window. If your vehicle has side air bags, and deployment occurs, the side air bags will inflate forcefully into the space between occupants and the door and occupants could be injured.
  9. If the air bag system in this vehicle needs to be modified to accommodate a disabled person, see ➤ page 445 for customer service contact information.

WARNING!

  • Never place a rear-facing child restraint in front of an air bag. A deploying passenger front air bag can cause death or serious injury to a child 12 years or younger, including a child in a rear-facing child restraint.
  • Never install a rear-facing child restraint in the front seat of a vehicle. Only use a rear-facing child restraint in the rear seat. If the vehicle does not have a rear seat, do not transport a rear-facing child restraint in that vehicle.

SEAT BELT SYSTEMS

Buckle up even though you are an excellent driver, even on short trips. Someone on the road may be a poor driver and could cause a collision that includes you. This can happen far away from home or on your own street.

Research has shown that seat belts save lives, and they can reduce the seriousness of injuries in a collision. Some of the worst injuries happen when people are thrown from the vehicle. Seat belts reduce the possibility of ejection and the risk of injury caused by striking the inside of the vehicle. Everyone in a motor vehicle should be belted at all times.

Enhanced Seat Belt Use Reminder System (BeltAlert)

Driver And Passenger BeltAlert — If Equipped

BeltAlert is a feature intended to remind the driver and outboard front seat passenger (if equipped with outboard front passenger seat BeltAlert) to buckle their seat belts. The BeltAlert feature is active whenever the ignition switch is in the START or ON/RUN position.

Initial Indication

If the driver is unbuckled when the ignition switch is first in the START or ON/RUN position, a chime will signal for a few seconds. If the driver or outboard front seat passenger (if equipped with outboard front passenger seat BeltAlert) is unbuckled when the ignition switch is first in the START or ON/RUN position the Seat Belt Reminder Light will turn on and remain on until both outboard front seat belts are buckled. The outboard front passenger seat BeltAlert is not active when an outboard front passenger seat is unoccupied.

BeltAlert Warning Sequence

The BeltAlert warning sequence is activated when the vehicle is moving above a specified vehicle speed range and the driver or outboard front seat passenger is unbuckled (if equipped with outboard front passenger seat BeltAlert) (the outboard front passenger seat BeltAlert is not active when the outboard front passenger seat is unoccupied). The BeltAlert warning sequence starts by blinking the Seat Belt Reminder Light and sounding an intermittent chime. Once the BeltAlert warning sequence has completed, the Seat Belt Reminder Light will remain on until the seat belts are buckled. The BeltAlert warning sequence may repeat based on vehicle speed until the driver and occupied outboard front seat passenger seat belts are buckled. The driver should instruct all occupants to buckle their seat belts.

Change Of Status

If the driver or outboard front seat passenger (if equipped with outboard front passenger seat BeltAlert) unbuckles their seat belt while the vehicle is traveling, the BeltAlert warning sequence will begin until the seat belts are buckled again.

The outboard front passenger seat BeltAlert is not active when the outboard front passenger seat is unoccupied. BeltAlert may be triggered when an animal or other items are placed on the outboard front passenger seat or when the seat is folded flat (if equipped). It is recommended that pets be restrained in the rear seat (if equipped) in pet harnesses or pet carriers that are secured by seat belts, and cargo is properly stowed.

BeltAlert can be activated or deactivated by an authorized dealer. FCA US LLC does not recommend deactivating BeltAlert.

NOTE:

If BeltAlert has been deactivated and the driver or outboard front seat passenger (if equipped with outboard front passenger seat BeltAlert) is unbuckled the Seat Belt Reminder Light will turn on and remain on until the driver and outboard front seat passenger seat belts are buckled.

Lap/Shoulder Belts

All seating positions except the Crew Cab front center seating position have combination lap/shoulder belts.

The seat belt webbing retractor will lock only during very sudden stops or collisions. This feature allows the shoulder part of the seat belt to move freely with you under normal conditions. However, in a collision the seat belt will lock and reduce your risk of striking the inside of the vehicle or being thrown out of the vehicle.

WARNING!

  • Relying on the air bags alone could lead to more severe injuries in a collision. The air bags work with your seat belt to restrain you properly. In some collisions, the air bags won't deploy at all. Always wear your seat belt even though you have air bags.
  • In a collision, you and your passengers can suffer much greater injuries if you are not properly buckled up. You can strike the interior of your vehicle or other passengers, or you can be thrown out of the vehicle. Always be sure you and others in your vehicle are buckled up properly.

WARNING! (Continued)

  • It is dangerous to ride in a cargo area, inside or outside of a vehicle. In a collision, people riding in these areas are more likely to be seriously injured or killed.
  • Do not allow people to ride in any area of your vehicle that is not equipped with seats and seat belts.
  • Be sure everyone in your vehicle is in a seat and using a seat belt properly. Occupants, including the driver, should always wear their seat belts whether or not an air bag is also provided at their seating position to minimize the risk of severe injury or death in the event of a crash.
  • Wearing your seat belt incorrectly could make your injuries in a collision much worse. You might suffer internal injuries, or you could even slide out of the seat belt. Follow these instructions to wear your seat belt safely and to keep your passengers safe, too.

(Continued)

WARNING! (Continued)

  • Two people should never be belted into a single seat belt. People belted together can crash into one another in a collision, hurting one another badly. Never use a lap/shoulder belt or a lap belt for more than one person, no matter what their size.

WARNING!

  • A lap belt worn too high can increase the risk of injury in a collision. The seat belt forces won't be at the strong hip and pelvic bones, but across your abdomen. Always wear the lap part of your seat belt as low as possible and keep it snug.
  • A twisted seat belt may not protect you properly. In a collision, it could even cut into you. Be sure the seat belt is flat against your body, without twists. If you can't straighten a seat belt in your vehicle, take it to an authorized dealer immediately and have it fixed.

(Continued)

WARNING! (Continued)

  • A seat belt that is buckled into the wrong buckle will not protect you properly. The lap portion could ride too high on your body, possibly causing internal injuries. Always buckle your seat belt into the buckle nearest you.
  • A seat belt that is too loose will not protect you properly. In a sudden stop, you could move too far forward, increasing the possibility of injury. Wear your seat belt snugly.
  • A seat belt that is worn under your arm is dangerous. Your body could strike the inside surfaces of the vehicle in a collision, increasing head and neck injury. A seat belt worn under the arm can cause internal injuries. Ribs aren't as strong as shoulder bones. Wear the seat belt over your shoulder so that your strongest bones will take the force in a collision.
  • A shoulder belt placed behind you will not protect you from injury during a collision. You are more likely to hit your head in a collision if you do not wear your shoulder belt. The lap and shoulder belt are meant to be used together.

(Continued)

WARNING! (Continued)

  • A frayed or torn seat belt could rip apart in a collision and leave you with no protection. Inspect the seat belt system periodically, checking for cuts, frays, or loose parts. Damaged parts must be replaced immediately. Do not disassemble or modify the seat belt system. Seat belt assemblies must be replaced after a collision.

Lap/Shoulder Belt Operating Instructions

  1. Enter the vehicle and close the door. Sit back and adjust the seat.
  2. The seat belt latch plate is above the back of the front seat, and next to your arm in the rear seat (for vehicles equipped with a rear seat). Grab the latch plate and pull out the seat belt. Slide the latch plate up the webbing as far as necessary to allow the seat belt to go around your lap.

RAM 4500 Chassis Cab (2021) - Lap/Shoulder Belt Operating Instructions - 1

natural_image Interior view of a car showing seatbelt and dashboard (no text or symbols)

Pulling Out The Latch Plate

  1. When the seat belt is long enough to fit, insert the latch plate into the buckle until you hear a "click."

RAM 4500 Chassis Cab (2021) - Lap/Shoulder Belt Operating Instructions - 2

natural_image Interior view of a car showing seatbelt and dashboard (no text or symbols visible)

Inserting Latch Plate Into Buckle

  1. Position the lap belt so that it is snug and lies low across your hips, below your abdomen. To remove slack in the lap belt portion, pull up on the shoulder belt. To loosen the lap belt if it is too tight, tilt the latch plate and pull on the lap belt. A snug seat belt reduces the risk of sliding under the seat belt in a collision.

RAM 4500 Chassis Cab (2021) - Lap/Shoulder Belt Operating Instructions - 3

natural_image Interior view of a car showing seatbelt and dashboard (no text or symbols visible)

Positioning The Lap Belt

  1. Position the shoulder belt across the shoulder and chest with minimal, if any slack so that it is comfortable and not resting on your neck. The retractor will withdraw any slack in the shoulder belt.

  2. To release the seat belt, push the red button on the buckle. The seat belt will automatically retract to its stowed position. If necessary, slide the latch plate down the webbing to allow the seat belt to retract fully.

Lap/Shoulder Belt Untwisting Procedure

Use the following procedure to untwist a twisted lap/shoulder belt.

  1. Position the latch plate as close as possible to the anchor point.
  2. At about 6 to 12 inches (15 to 30 cm) above the latch plate, grab and twist the seat belt webbing 180 degrees to create a fold that begins immediately above the latch plate.
  3. Slide the latch plate upward over the folded webbing. The folded webbing must enter the slot at the top of the latch plate.

  4. Continue to slide the latch plate up until it clears the folded webbing and the seat belt is no longer twisted.

Adjustable Upper Shoulder Belt Anchorage

In the driver and outboard front passenger seats, the top of the shoulder belt can be adjusted upward or downward to position the seat belt away from your neck. Push or squeeze the anchorage button to release the anchorage, and move it up or down to the position that serves you best.

RAM 4500 Chassis Cab (2021) - Adjustable Upper Shoulder Belt Anchorage - 1

natural_image Mechanical diagram showing a belt buckle adjustment mechanism with arrows indicating movement (no text or symbols)

Adjustable Anchorage

As a guide, if you are shorter than average, you will prefer the shoulder belt anchorage in a lower position, and if you are taller than average, you will prefer the shoulder belt anchorage in a higher position. After you release the anchorage button, try to move it up or down to make sure that it is locked in position.

NOTE:

The adjustable upper shoulder belt anchorage is equipped with an Easy Up feature. This feature allows the shoulder belt anchorage to be adjusted in the upward position without pushing or squeezing the release button. To verify the shoulder belt anchorage is latched, pull downward on the shoulder belt anchorage until it is locked into position.

WARNING!

  • Wearing your seat belt incorrectly could make your injuries in a collision much worse. You might suffer internal injuries, or you could even slide out of the seat belt. Follow these instructions to wear your seat belt safely and to keep your passengers safe, too.
  • Position the shoulder belt across the shoulder and chest with minimal, if any slack so that it is comfortable and not resting on your neck. The retractor will withdraw any slack in the shoulder belt.
  • Misadjustment of the seat belt could reduce the effectiveness of the safety belt in a crash.
    ● Always make all seat belt height adjustments when the vehicle is stationary.

First Row Center Seat Belt Operating Instructions (Regular Cab Only)

The first row center seat belt (Regular Cab only) features a seat belt with a mini-latch plate and buckle, which allows the seat belt to detach from the lower anchor when the seat is folded. The latch plate and regular latch plate can then be stored out of the way in the seat for added convenience to open up utilization of the storage areas behind the front seats when the seat is not occupied.

  1. Remove the mini-latch plate and regular latch plate from its stowed position on the seat.

RAM 4500 Chassis Cab (2021) - First Row Center Seat Belt Operating Instructions (Regular Cab Only) - 1

natural_image Mechanical assembly diagram showing a belt buckle with a black arrow pointing to the buckle (no text or symbols present)

Connect Mini-Latch To Mini-Buckle

RAM 4500 Chassis Cab (2021) - First Row Center Seat Belt Operating Instructions (Regular Cab Only) - 2

natural_image Mechanical assembly diagram showing a clamp or bracket being inserted into a housing (no text or symbols visible)

Mini-Latch And Mini-Buckle Connected

  1. Grasp the mini-latch plate and pull the seat belt over the seat.
  2. Route the shoulder belt to the inside of the right head restraint.
  3. When the seat belt is long enough to fit, insert the mini-latch plate into the mini-buckle until you hear a "click."
  4. Sit back in seat. Slide the regular latch plate up the webbing as far as necessary to allow the seat belt to go around your lap.
  5. When the seat belt is long enough to fit, insert the latch plate into the buckle until you hear a "click."

  6. Position the lap belt so that it is snug and lies low across your hips, below your abdomen. To remove slack in the lap belt portion, pull up on the shoulder belt. To loosen the lap belt if it is too tight, pull on the lap belt. A snug seat belt reduces the risk of sliding under the seat belt in a collision.

  7. Position the shoulder belt on your chest so that it is comfortable and not resting on your neck. The retractor will withdraw any slack in the seat belt.
  8. To release the seat belt, push the red button on the buckle.
  9. To disengage the mini-latch plate from the mini-buckle for storage, insert the regular latch plate into the center red slot on the mini-buckle. The seat belt will automatically retract to its stowed position. If necessary, slide the latch plate down the webbing to allow the seat belt to retract fully. Insert the mini-latch plate and regular latch plate into its stowed position.

RAM 4500 Chassis Cab (2021) - First Row Center Seat Belt Operating Instructions (Regular Cab Only) - 3

natural_image Mechanical assembly diagram showing a belt buckle adjustment mechanism (no text or symbols visible)

Detaching Mini-Buckle With Seat Belt Tongue

WARNING!

  • If the mini-latch plate and mini-buckle are not properly connected when the seat belt is used by an occupant, the seat belt will not be able to provide proper restraint and will increase the risk of injury in a collision.
  • When reattaching the mini-latch plate and mini-buckle, ensure the seat belt webbing is not twisted. If the webbing is twisted, follow the preceding procedure to detach the mini-latch plate and mini-buckle, untwist the webbing, and reattach the mini-latch plate and mini-buckle.

First Row Center Lap Belt Operating Instructions — If Equipped

The center seating position for the Crew Cab front seat has a lap belt only. To buckle the lap belt, slide the latch plate into the buckle until you hear a "click." To lengthen the lap belt, tilt the latch plate and pull.

To remove slack, pull the loose end of the webbing. Wear the lap belt snug against the hips. Sit back and upright in the seat, then adjust the seat belt as tightly as is comfortable.

Seat Belt Extender

If a seat belt is not long enough to fit properly, even when the webbing is fully extended and the adjustable upper shoulder belt anchorage (if equipped) is in its lowest position, an authorized dealer can provide you with a Seat Belt Extender. The Seat Belt Extender should be used only if the existing seat belt is not long enough. When the Seat Belt Extender is not required for a different occupant, it must be removed.

WARNING!

  • ONLY use a Seat Belt Extender if it is physically required in order to properly fit the original seat belt system. DO NOT USE the Seat Belt Extender if, when worn, the distance between the front edge of the Seat Belt Extender buckle and the center of the occupant's body is LESS than 6 inches.
  • Using a Seat Belt Extender when not needed can increase the risk of serious injury or death in a collision. Only use the Seat Belt Extender when the lap belt is not long enough and only use in the recommended seating positions. Remove and store the Seat Belt Extender when not needed.

Seat Belts And Pregnant Women

RAM 4500 Chassis Cab (2021) - Seat Belts And Pregnant Women - 1

natural_image Illustration of a person seated in a car, showing seatbelt and seatbelt (no text or symbols)

Seat Belts and Pregnant Women

Seat belts must be worn by all occupants including pregnant women: the risk of injury in the event of an accident is reduced for the mother and the unborn child if they are wearing a seat belt.

Position the lap belt snug and low below the abdomen and across the strong bones of the hips. Place the shoulder belt across the chest and away from the neck. Never place the shoulder belt behind the back or under the arm.

Seat Belt Pretensioner — If Equipped 3500 Models Only

The front outboard seat belt system is equipped with pretensioning devices that are designed to remove slack from the seat belt in the event of a collision. These devices may improve the performance of the seat belt by removing slack from the seat belt early in a collision. Pretensioners work for all size occupants, including those in child restraints.

NOTE:

These devices are not a substitute for proper seat belt placement by the occupant. The seat belt still must be worn snugly and positioned properly.

The pretensioners are triggered by the Occupant Restraint Controller (ORC). Like the air bags, the pretensioners are single use items. A deployed pretensioner or a deployed air bag must be replaced immediately.

Energy Management Feature — If Equipped

3500 Models Only

The front outboard seat belt system is equipped with an Energy Management feature that may help further reduce the risk of injury in the event of a collision. The seat belt system has a retractor assembly that is designed to release webbing in a controlled manner.

Switchable Automatic Locking Retractors (ALR) — If Equipped

The seat belts in the passenger seating positions may be equipped with a Switchable Automatic Locking Retractor (ALR) which is used to secure a child restraint system page 322.

The figure below illustrates the locking feature for each seating position.

RAM 4500 Chassis Cab (2021) - Switchable Automatic Locking Retractors (ALR) — If Equipped - 1

text_image ALR ALR

A0503000867US
Regular Cab Automatic Locking Retractor (ALR) Locations

ALR — Switchable Automatic Locking Retractor

RAM 4500 Chassis Cab (2021) - Switchable Automatic Locking Retractors (ALR) — If Equipped - 2

text_image ALR Elevating Leucopexes ALR Elevating Leucopenters ALR

A0503000868US
Crew Cab Automatic Locking Retractor (ALR) Locations

ALR – Switchable Automatic Locking Retractor

If the passenger seating position is equipped with an ALR and is being used for normal usage, only pull the seat belt webbing out far enough to comfortably wrap around the occupant's mid-section so as to not activate the ALR. If the ALR is activated, you will hear a clicking sound as the seat belt retracts. Allow the webbing to retract completely in this case and then carefully pull out only the amount of webbing necessary to comfortably wrap around the occupant's mid-section. Slide the latch plate into the buckle until you hear a "click."

In Automatic Locking Mode, the shoulder belt is automatically pre-locked. The seat belt will still retract to remove any slack in the shoulder belt. Use the Automatic Locking Mode anytime a child restraint is installed in a seating position that has a seat belt with this feature. Children 12 years old and under should always be properly restrained in the rear seat of a vehicle with a rear seat.

WARNING!

  • Never place a rear-facing child restraint in front of an air bag. A deploying passenger front air bag can cause death or serious injury to a child 12 years or younger, including a child in a rear-facing child restraint.
  • Never install a rear-facing child restraint in the front seat of a vehicle. Only use a rear-facing child restraint in the rear seat. If the vehicle does not have a rear seat, do not transport a rear-facing child restraint in that vehicle.

How To Engage The Automatic Locking Mode

  1. Buckle the combination lap and shoulder belt.
  2. Grab the shoulder portion and pull downward until the entire seat belt is extracted.
  3. Allow the seat belt to retract. As the seat belt retracts, you will hear a clicking sound. This indicates the seat belt is now in the Automatic Locking Mode.

How To Disengage The Automatic Locking Mode

Unbuckle the combination lap/shoulder belt and allow it to retract completely to disengage the Automatic Locking Mode and activate the vehicle sensitive (emergency) locking mode.

WARNING!

  • The seat belt assembly must be replaced if the switchable Automatic Locking Retractor (ALR) feature or any other seat belt function is not working properly when checked according to the procedures in the Service Manual.
  • Failure to replace the seat belt assembly could increase the risk of injury in collisions.
  • Do not use the Automatic Locking Mode to restrain occupants who are wearing the seat belt or children who are using booster seats. The locked mode is only used to install rear-facing or forward-facing child restraints that have a harness for restraining the child.

SUPPLEMENTAL RESTRAINT SYSTEMS (SRS)

Some of the safety features described in this section may be standard equipment on some models, or may be optional equipment on others. If you are not sure, ask an authorized dealer.

The air bag system must be ready to protect you in a collision. The Occupant Restraint Controller (ORC) monitors the internal circuits and interconnecting wiring associated with the electrical Air Bag System Components. Your vehicle may be equipped with the following Air Bag System Components:

Air Bag System Components

• Occupant Restraint Controller (ORC)
• Air Bag Warning Light
• Steering Wheel and Column
- Instrument Panel
- Knee Impact Bolsters
- Driver and Front Passenger Air Bags

  • Seat Belt Buckle Switch
  • Supplemental Side Air Bags — If Equipped
  • Front and Side Impact Sensors — If Equipped
  • Seat Belt Pretensioners — If Equipped

Air Bag Warning Light

RAM 4500 Chassis Cab (2021) - Air Bag Warning Light - 1

The Occupant Restraint Controller (ORC) monitors the readiness of the electronic parts of the air bag system whenever the ignition switch is in the

START or ON/RUN position. If the ignition switch is in the OFF position or in the ACC position, the air bag system is not on and the air bags will not inflate.

The ORC contains a backup power supply system that may deploy the air bag system even if the battery loses power or it becomes disconnected prior to deployment.

The ORC turns on the Air Bag Warning Light in the instrument panel for approximately four to eight seconds for a self-check when the ignition switch is first in the ON/RUN position. After the self-check, the Air Bag Warning Light will turn off. If the ORC detects a malfunction in any part of the system, it turns on the Air Bag Warning Light, either momentarily or continuously.

A single chime will sound to alert you if the light comes on again after initial startup.

The ORC also includes diagnostics that will illuminate the instrument panel Air Bag Warning Light if a malfunction is detected that could affect the air bag system. The diagnostics also record the nature of the malfunction. While the air bag system is designed to be maintenance free, if any of the following occurs, have an authorized dealer service the air bag system immediately.

  • The Air Bag Warning Light does not come on during the four to eight seconds when the ignition switch is first in the ON/RUN position.
  • The Air Bag Warning Light remains on after the four to eight-second interval.
  • The Air Bag Warning Light comes on intermittently or remains on while driving.

NOTE:

If the speedometer, tachometer, or any engine related gauges are not working, the Occupant Restraint Controller (ORC) may also be disabled. In this condition the air bags may not be ready to inflate for your protection. Have an authorized dealer service the air bag system immediately.

WARNING!

Ignoring the Air Bag Warning Light in your instrument panel could mean you won't have the air bag system to protect you in a collision. If the light does not come on as a bulb check when the ignition is first turned on, stays on after you start the vehicle, or if it comes on as you drive, have an authorized dealer service the air bag system immediately.

Redundant Air Bag Warning Light

RAM 4500 Chassis Cab (2021) - Redundant Air Bag Warning Light - 1

If a fault with the Air Bag Warning Light is detected, which could affect the Supplemental Restraint System (SRS), the Redundant Air Bag Warning

Light will illuminate on the instrument panel. The Redundant Air Bag Warning Light will stay on until the fault is cleared. In addition, a single chime will sound to alert you that the Redundant Air Bag Warning Light has come on and a fault has been detected. If the Redundant Air Bag Warning Light comes on intermittently or remains on while driving have an authorized dealer service the vehicle immediately page 107.

Front Air Bags

This vehicle has front air bags and lap/shoulder belts for both the driver and front passenger. The front air bags are a supplement to the seat belt restraint systems. The driver front air bag is mounted in the center of the steering wheel. The passenger front air bag is mounted in the instrument panel, above the glove compartment. The words "SRS AIRBAG" or "AIRBAG" are embossed on the air bag covers.

RAM 4500 Chassis Cab (2021) - Front Air Bags - 1

text_image Diagram of a car dashboard with labeled parts including steering wheel, dashboard, and control panel

Front Air Bag/Knee Bolster Locations

1 – Driver And Passenger Front Air Bags
2 – Driver And Passenger Knee Impact Bolsters

WARNING!

  • Being too close to the steering wheel or instrument panel during front air bag deployment could cause serious injury, including death. Air bags need room to inflate. Sit back, comfortably extending your arms to reach the steering wheel or instrument panel.
  • Never place a rear-facing child restraint in front of an air bag. A deploying passenger front air bag can cause death or serious injury to a child 12 years or younger, including a child in a rear-facing child restraint.
  • Never install a rear-facing child restraint in the front seat of a vehicle. Only use a rear-facing child restraint in the rear seat. If the vehicle does not have a rear seat, do not transport a rear-facing child restraint in that vehicle.

Driver And Passenger Front Air Bag Features

The Advanced Front Air Bag system has multistage driver and front passenger air bags. This system provides output appropriate to the severity and type of collision as determined by the Occupant Restraint Controller (ORC), which may receive information from the front impact sensors (if equipped) or other system components.

The first stage inflator is triggered immediately during an impact that requires air bag deployment. A low energy output is used in less severe collisions. A higher energy output is used for more severe collisions.

This vehicle may be equipped with a driver and/or front passenger seat belt buckle switch that detects whether the driver or front passenger seat belt is buckled. The seat belt buckle switch may adjust the inflation rate of the Advanced Front Air Bags.

WARNING!

  • No objects should be placed over or near the air bag on the instrument panel or steering wheel because any such objects could cause harm if the vehicle is in a collision severe enough to cause the air bag to inflate.
  • Do not put anything on or around the air bag covers or attempt to open them manually. You may damage the air bags and you could be injured because the air bags may no longer be functional. The protective covers for the air bag cushions are designed to open only when the air bags are inflating.
  • Relying on the air bags alone could lead to more severe injuries in a collision. The air bags work with your seat belt to restrain you properly. In some collisions, air bags won't deploy at all. Always wear your seat belts even though you have air bags.

Front Air Bag Operation

Front Air Bags are designed to provide additional protection by supplementing the seat belts. Front air bags are not expected to reduce the risk of injury in rear, side, or rollover collisions. The front air bags will not deploy in all frontal collisions, including some that may produce substantial vehicle damage — for example, some pole collisions, truck underrides, and angle offset collisions.

On the other hand, depending on the type and location of impact, front air bags may deploy in crashes with little vehicle front-end damage but that produce a severe initial deceleration.

Because air bag sensors measure vehicle deceleration over time, vehicle speed and damage by themselves are not good indicators of whether or not an air bag should have deployed.

Seat belts are necessary for your protection in all collisions, and also are needed to help keep you in position, away from an inflating air bag.

When the Occupant Restraint Controller (ORC) detects a collision requiring the front air bags, it signals the inflator units. A large quantity of non-toxic gas is generated to inflate the front air bags.

The steering wheel hub trim cover and the upper passenger side of the instrument panel separate and fold out of the way as the air bags inflate to their full size. The front air bags fully inflate in less time than it takes to blink your eyes. The front air bags then quickly deflate while helping to restrain the driver and front passenger.

Knee Impact Bolsters

The Knee Impact Bolsters help protect the knees of the driver and front passenger, and position the front occupants for improved interaction with the front air bags.

WARNING!

  • Do not drill, cut, or tamper with the knee impact bolsters in any way.
  • Do not mount any accessories to the knee impact bolsters such as alarm lights, stereos, citizen band radios, etc.

Supplemental Side Air Bags

Supplemental Seat-Mounted Side Air Bags (SABs) — If Equipped

Your vehicle may be equipped with Supplemental Seat-Mounted Side Air Bags (SABs). If your vehicle is equipped with Supplemental Seat-Mounted Side Air Bags (SABs), please refer to the information below.

Supplemental Seat-Mounted Side Air Bags (SABs) are located in the outboard side of the front seats. The SABs are marked with "SRS AIRBAG" or "AIRBAG" on a label or on the seat trim on the outboard side of the seats.

RAM 4500 Chassis Cab (2021) - Supplemental Side Air Bags - 1

text_image SRS AIR BAG A0503000876US

Supplemental Seat-Mounted Side Air Bag Label

The SABs (if equipped with SABs) may help to reduce the risk of occupant injury during certain side impacts, in addition to the injury reduction potential provided by the seat belts and body structure.

When the SAB deploys, it opens the seam on the outboard side of the seatback's trim cover. The inflating SAB deploys through the seat seam into the space between the occupant and the door. The SAB moves at a very high speed and with such a high force that it could injure occupants if they are not seated properly, or if items are positioned in the area where the SAB inflates. Children are at an even greater risk of injury from a deploying air bag.

WARNING!

Do not use accessory seat covers or place objects between you and the Side Air Bags; the performance could be adversely affected and/or objects could be pushed into you, causing serious injury.

Supplemental Side Air Bag Inflatable Curtains (SABICs) — If Equipped

Your vehicle may be equipped with Supplemental Side Air Bag Inflatable Curtains (SABICs). If your vehicle is equipped with Supplemental Side Air Bag Inflatable Curtains (SABICs), please refer to the information below.

Supplemental Side Air Bag Inflatable Curtains (SABICs) are located above the side windows. The trim covering the SABICs is labeled "SRS AIRBAG" or "AIRBAG."

RAM 4500 Chassis Cab (2021) - Supplemental Side Air Bag Inflatable Curtains (SABICs) — If Equipped - 1

natural_image Medical illustration of a joint with an arrow pointing to a specific area (no text or symbols present)

Supplemental Side Air Bag Inflatable Curtain (SABIC) Label Location

SABICs (if equipped with SABICs) may help reduce the risk of head and other injuries to front and rear seat outboard occupants in certain side impacts, in addition to the injury reduction potential provided by the seat belts and body structure.

The SABIC deploys downward, covering the side windows. An inflating SABIC pushes the outside edge of the headliner out of the way and covers the window. The SABICs inflate with enough force to injure occupants if they are not belted and seated properly, or if items are positioned in the area where the SABICs inflate. Children are at an even greater risk of injury from a deploying air bag.

The SABICs (if equipped with SABICs) may help reduce the risk of partial or complete ejection of vehicle occupants through side windows in certain side impact events.

WARNING!

  • Do not mount equipment, or stack luggage or other cargo up high enough to block the deployment of the SABICs. The trim covering above the side windows where the SABIC and its deployment path are located should remain free from any obstructions.
  • In order for the SABICs to work as intended, do not install any accessory items in your vehicle which could alter the roof. Do not add an aftermarket sunroof to your vehicle. Do not add roof racks that require permanent attachments (bolts or screws) for installation on the vehicle roof. Do not drill into the roof of the vehicle for any reason.

Side Impacts

The Side Air Bags are designed to activate in certain side impacts. The Occupant Restraint Controller (ORC) determines whether the deployment of the Side Air Bags in a particular impact event is appropriate, based on the severity and type of

collision. The side impact sensors aid the ORC in determining the appropriate response to impact events. The system is calibrated to deploy the Side Air Bags on the impact side of the vehicle during impacts that require Side Air Bag occupant protection. In side impacts, the Side Air Bags deploy independently; a left side impact deploys the left Side Air Bags only and a right-side impact deploys the right Side Air Bags only. Vehicle damage by itself is not a good indicator of whether or not Side Air Bags should have deployed.

The Side Air Bags will not deploy in all side collisions, including some collisions at certain angles, or some side collisions that do not impact the area of the passenger compartment. The Side Air Bags may deploy during angled or offset frontal collisions where the front air bags deploy.

Side Air Bags are a supplement to the seat belt restraint system. Side Air Bags deploy in less time than it takes to blink your eyes.

WARNING!

  • Occupants, including children, who are up against or very close to Side Air Bags can be seriously injured or killed. Occupants, including children, should never lean on or sleep against the door, side windows, or area where the side air bags inflate, even if they are in an infant or child restraint.
  • Seat belts (and child restraints where appropriate) are necessary for your protection in all collisions. They also help keep you in position, away from an inflating Side Air Bag. To get the best protection from the Side Air Bags, occupants must wear their seat belts properly and sit upright with their backs against the seats. Children must be properly restrained in a child restraint or booster seat that is appropriate for the size of the child.

WARNING!

  • Side Air Bags need room to inflate. Do not lean against the door or window. Sit upright in the center of the seat.
  • Being too close to the Side Air Bags during deployment could cause you to be severely injured or killed.
  • Relying on the Side Air Bags alone could lead to more severe injuries in a collision. The Side Air Bags work with your seat belt to restrain you properly. In some collisions, Side Air Bags won't deploy at all. Always wear your seat belt even though you have Side Air Bags.

NOTE:

Air bag covers may not be obvious in the interior trim, but they will open during air bag deployment.

Rollover Events (If Equipped With Rollover Sensing)

Side Air Bags and seat belt pretensioners (if equipped) are designed to activate in certain rollover events (if equipped with rollover sensing). The Occupant Restraint Controller (ORC) determines whether deployment in a particular rollover event is appropriate, based on the severity and type of collision. Vehicle damage by itself is not a good indicator of whether or not Side Air Bags and seat belt pretensioners should have deployed.

The Side Air Bags and seat belt pretensioners will not deploy in all rollover events. The rollover sensing system determines if a rollover event may be in progress and whether deployment is appropriate. In the event the vehicle experiences a rollover or near rollover event, and deployment is appropriate, the rollover sensing system will deploy the Side Air Bags and seat belt pretensioners on both sides of the vehicle.

The SABICs may help reduce the risk of partial or complete ejection of vehicle occupants through side windows in certain rollover or side impact events.

Air Bag System Components

NOTE:

The Occupant Restraint Controller (ORC) monitors the internal circuits and interconnecting wiring associated with electrical Air Bag System Components listed below:

• Occupant Restraint Controller (ORC)
• Air Bag Warning Light
• Steering Wheel and Column
- Instrument Panel
- Knee Impact Bolsters
- Driver and Front Passenger Air Bags
- Seat Belt Buckle Switch
• Supplemental Side Air Bags — If Equipped
- Front and Side Impact Sensors — If Equipped
- Seat Belt Pretensioners — If Equipped

If A Deployment Occurs

The front air bags are designed to deflate immediately after deployment.

NOTE:

Front and/or side air bags will not deploy in all collisions. This does not mean something is wrong with the air bag system.

If you do have a collision which deploys the air bags, any or all of the following may occur:

  • The air bag material may sometimes cause abrasions and/or skin reddening to the occupants as the air bags deploy and unfold. The abrasions are similar to friction rope burns or those you might get sliding along a carpet or gymnasium floor. They are not caused by contact with chemicals. They are not permanent and normally heal quickly. However, if you haven't healed significantly within a few days, or if you have any blistering, see your doctor immediately.
  • As the air bags deflate, you may see some smoke-like particles. The particles are a normal by-product of the process that generates the non-toxic gas used for air bag inflation. These airborne particles may irritate the skin, eyes, nose, or throat. If you have skin or eye irritation, rinse the area with cool water. For nose or throat irritation, move to fresh air.

If the irritation continues, see your doctor. If these particles settle on your clothing, follow the garment manufacturer's instructions for cleaning.

Do not drive your vehicle after the air bags have deployed. If you are involved in another collision, the air bags will not be in place to protect you.

WARNING!

Deployed air bags and seat belt pretensioners cannot protect you in another collision. Have the air bags, seat belt pretensioners, and the seat belt retractor assemblies replaced by an authorized dealer immediately. Also, have the Occupant Restraint Controller System serviced as well.

NOTE:

  • Air bag covers may not be obvious in the interior trim, but they will open during air bag deployment.
  • After any collision, the vehicle should be taken to an authorized dealer immediately.

Enhanced Accident Response System

In the event of an impact, if the communication network remains intact, and the power remains intact, depending on the nature of the event, the ORC will determine whether to have the Enhanced Accident Response System perform the following functions:

  • Cut off fuel to the engine (if equipped).
  • Cut off battery power to the electric motor (if equipped).
  • Flash hazard lights as long as the battery has power.
  • Turn on the interior lights, which remain on as long as the battery has power or for 15 minutes from the intervention of the Enhanced Accident Response System.
  • Unlock the power door locks.

Your vehicle may also be designed to perform any of these other functions in response to the Enhanced Accident Response System:

- Turn off the Fuel Filter Heater, Turn off the HVAC Blower Motor, Close the HVAC Circulation Door

- Cut off battery power to the:

  • Engine
    • Electric Motor (if equipped)
    • Electric power steering
  • Brake booster
    • Electric park brake
    ● Automatic transmission gear selector
  • Horn
  • Front wiper
  • Headlamp washer pump

NOTE:

After an accident, remember to place the ignition to the STOP (OFF/LOCK) position and remove the key from the ignition switch to avoid draining the battery. Carefully check the vehicle for fuel leaks in the engine compartment and on the ground near the engine compartment and fuel tank before resetting the system and starting the engine. If there are no fuel leaks or damage to the vehicle electrical devices (e.g. headlights) after an accident, reset the system by following the procedure described below. If you have any doubt, contact an authorized dealer.

Enhanced Accident Response System Reset Procedure

In order to reset the Enhanced Accident Response System functions after an event, the ignition switch must be changed from ignition START or ON/RUN to ignition OFF. Carefully check the vehicle for fuel leaks in the engine compartment and on the ground near the engine compartment and fuel tank before resetting the system and starting the engine.

After an accident, if the vehicle will not start after performing the reset procedure, the vehicle must be towed to an authorized dealer to be inspected and to have the Enhanced Accident Response System reset.

Maintaining Your Air Bag System

WARNING!

  • Modifications to any part of the air bag system could cause it to fail when you need it. You could be injured if the air bag system is not there to protect you. Do not modify the components or wiring, including adding any kind of badges or stickers to the steering wheel hub trim cover or the upper passenger side of the instrument panel. Do not modify the front fascia/bumper, vehicle body structure, or add aftermarket side steps or running boards.
  • It is dangerous to try to repair any part of the air bag system yourself. Be sure to tell anyone who works on your vehicle that it has an air bag system.

(Continued)

WARNING! (Continued)

  • Do not attempt to modify any part of your air bag system. The air bag may inflate accidentally or may not function properly if modifications are made. Take your vehicle to an authorized dealer for any air bag system service. If your seat, including your trim cover and cushion, needs to be serviced in any way (including removal or loosening/tightening of seat attachment bolts), take the vehicle to an authorized dealer. Only manufacturer approved seat accessories may be used. If it is necessary to modify the air bag system for persons with disabilities, contact an authorized dealer.

Event Data Recorder (EDR)

This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR is to record, in certain crash or near crash-like situations, such as an air bag deployment or hitting a road obstacle, data that will assist in understanding how a vehicle's systems performed. The EDR is designed to record data related to vehicle dynamics and safety systems for a short period of time, typically 30 seconds or less. The EDR in this vehicle is designed to record such data as:

  • How various systems in your vehicle were operating;
  • Whether or not the driver and passenger safety belts were buckled/fastened;
  • How far (if at all) the driver was depressing the accelerator and/or brake pedal; and,
    • How fast the vehicle was traveling.

These data can help provide a better understanding of the circumstances in which crashes and injuries occur.

NOTE:

EDR data are recorded by your vehicle only if a non-trivial crash situation occurs; no data are recorded by the EDR under normal driving conditions and no personal data (e.g., name, gender, age, and crash location) are recorded. However, other parties, such as law enforcement, could combine the EDR data with the type of personally identifying data routinely acquired during a crash investigation.

To read data recorded by an EDR, special equipment is required, and access to the vehicle or the EDR is needed. In addition to the vehicle manufacturer, other parties, such as law enforcement, that have the special equipment, can read the information if they have access to the vehicle or the EDR.

CHILD RESTRAINTS

Everyone in your vehicle needs to be buckled up at all times, including babies and children. Every state in the United States, and every Canadian province, requires that small children ride in proper restraint systems. This is the law, and you can be prosecuted for ignoring it.

Children 12 years or younger should ride properly buckled up in a rear seat, if available. According to crash statistics, children are safer when properly restrained in the rear seats rather than in the front.

WARNING!

In a collision, an unrestrained child can become a projectile inside the vehicle. The force required to hold even an infant on your lap could become so great that you could not hold the child, no matter how strong you are. The child and others could be badly injured or killed. Any child riding in your vehicle should be in a proper restraint for the child's size.

There are different sizes and types of restraints for children from newborn size to the child almost large enough for an adult safety belt. Always check the child seat Owner's Manual to make sure you have the correct seat for your child. Carefully read and follow all the instructions and warnings in the child restraint Owner's Manual and on all the labels attached to the child restraint.

Before buying any restraint system, make sure that it has a label certifying that it meets all applicable Safety Standards. You should also make sure that you can install it in the vehicle where you will use it.

NOTE:

  • For additional information, refer to http://www.nhtsa.gov/parents-and-caregivers or call: 1-888-327-4236
  • Canadian residents should refer to Transport Canada's website for additional information: http://www.tc.gc.ca/en/services/road/child-car-seat-safety.html

Summary Of Recommendations For Restraining Children In Vehicles

Child Size, Height, Weight Or Age Recommended Type Of Child Restraint
Infants and ToddlersChildren who are two years old or younger and who have not reached the height or weight limits of their child restraintEither an Infant Carrier or a Convertible Child Restraint, facing rearward in a rear seat of the vehicle
Small ChildrenChildren who are at least two years old or who have outgrown the height or weight limit of their rear-facing child restraintForward-Facing Child Restraint with a five-point Harness, facing forward in a rear seat of the vehicle
Larger ChildrenChildren who have outgrown their forward-facing child restraint, but are too small to properly fit the vehicle’s seat beltBelt Positioning Booster Seat and the vehicle seat belt, seated in a rear seat of the vehicle
Children Too Large for Child RestraintsChildren 12 years old or younger, who have outgrown the height or weight limit of their booster seatVehicle Seat Belt, seated in a rear seat of the vehicle

Infant And Child Restraints

Safety experts recommend that children ride rear-facing in the vehicle until they are two years old or until they reach either the height or weight limit of their rear-facing child restraint. Two types of child restraints can be used rear-facing: infant carriers and convertible child seats.

The infant carrier is only used rear-facing in the vehicle. It is recommended for children from birth until they reach the weight or height limit of the infant carrier. Convertible child seats can be used either rear-facing or forward-facing in the vehicle. Convertible child seats often have a higher weight limit in the rear-facing direction

than infant carriers do, so they can be used rear-facing by children who have outgrown their infant carrier but are still less than at least two years old. Children should remain rear-facing until they reach the highest weight or height allowed by their convertible child seat.

WARNING!

  • Never place a rear-facing child restraint in front of an air bag. A deploying passenger front air bag can cause death or serious injury to a child 12 years or younger, including a child in a rear-facing child restraint.
  • Never install a rear-facing child restraint in the front seat of a vehicle. Only use a rear-facing child restraint in the rear seat. If the vehicle does not have a rear seat, do not transport a rear-facing child restraint in that vehicle.

WARNING!

Do not install a rear-facing car seat using a rear support leg in this vehicle. The floor of this vehicle is not designed to manage the crash forces of this type of car seat. In a crash, the support leg may not function as it was designed by the car seat manufacturer, and your child may be more severely injured as a result.

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natural_image Diagram of a car seat with diagonal lines indicating crossed safety or clearance zones (no text or symbols present)

Older Children And Child Restraints

Children who are two years old or who have outgrown their rear-facing convertible child seat can ride forward-facing in the vehicle. Forward-facing child seats and convertible child seats used in the forward-facing direction are for children who are over two years old or who have outgrown the rear-facing weight or height limit of their rear-facing convertible child seat. Children should remain in a forward-facing child seat with a harness for as long as possible, up to the highest weight or height allowed by the child seat.

All children whose weight or height is above the forward-facing limit for the child seat should use a belt-positioning booster seat until the vehicle's seat belts fit properly. If the child cannot sit with knees bent over the vehicle's seat cushion while the child's back is against the seatback, they should use a belt-positioning booster seat. The child and belt-positioning booster seat are held in the vehicle by the seat belt.

WARNING!

  • Improper installation can lead to failure of an infant or child restraint. It could come loose in a collision. The child could be badly injured or killed. Follow the child restraint manufacturer's directions exactly when installing an infant or child restraint.
  • After a child restraint is installed in the vehicle, do not move the vehicle seat forward or rearward because it can loosen the child restraint attachments. Remove the child restraint before adjusting the vehicle seat position. When the vehicle seat has been adjusted, reinstall the child restraint.
  • When your child restraint is not in use, secure it in the vehicle with the seat belt or LATCH anchorages, or remove it from the vehicle. Do not leave it loose in the vehicle. In a sudden stop or accident, it could strike the occupants or seatbacks and cause serious personal injury.

Children Too Large For Booster Seats

Children who are large enough to wear the shoulder belt comfortably, and whose legs are long enough to bend over the front of the seat when their back is against the seatback, should use the seat belt in a rear seat. Use this simple 5-step test to decide whether the child can use the vehicle's seat belt alone:

  1. Can the child sit all the way back against the back of the vehicle seat?
  2. Do the child's knees bend comfortably over the front of the vehicle seat – while the child is still sitting all the way back?
  3. Does the shoulder belt cross the child's shoulder between the neck and arm?
  4. Is the lap part of the belt as low as possible, touching the child's thighs and not the stomach?
  5. Can the child stay seated like this for the whole trip?

If the answer to any of these questions was "no", then the child still needs to use a booster seat in this vehicle. If the child is using the lap/shoulder belt, check seat belt fit periodically and make sure the seat belt buckle is latched. A child's squirming or slouching can move the belt out of position. If the shoulder belt contacts the face or neck, move the child closer to the center of the vehicle, or use a booster seat to position the seat belt on the child correctly.

WARNING!

Never allow a child to put the shoulder belt under an arm or behind their back. In a crash, the shoulder belt will not protect a child properly, which may result in serious injury or death. A child must always wear both the lap and shoulder portions of the seat belt correctly.

Recommendations For Attaching Child Restraints

Restraint TypeCombined Weight of the Child + Child RestraintUse Any Attachment Method Shown With An “X” Below
LATCH – Lower Anchors OnlySeat Belt OnlyLATCH – Lower Anchors + Top Tether AnchorSeat Belt + Top Tether Anchor
Rear-Facing Child RestraintUp to 65 lbs (29.5 kg) X X
Rear-Facing Child RestraintMore than 65 lbs (29.5 kg)X
Forward-Facing Child RestraintUp to 65 lbs (29.5 kg)XX
Forward-Facing Child RestraintMore than 65 lbs (29.5 kg)X

Lower Anchors And Tethers For CHildren (LATCH) Restraint System

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text_image Anchor. Tether. LATCH The next generation of child safety.

022668173

LATCH Label

Your vehicle is equipped with the child restraint anchorage system called LATCH, which stands for Lower Anchors and Tethers for CHildren. The LATCH system has three vehicle anchor

points for installing LATCH-equipped child seats. There are two lower anchorages located at the back of the seat cushion where it meets the seatback and one top tether anchorage located behind the seating position. These anchorages are used to install LATCH-equipped child seats without using the vehicle's seat belts. Some seating positions may have a top tether anchorage but no lower anchorages. In these seating positions, the seat belt must be used with the top tether anchorage to install the child restraint. Please see the following table for more information.

LATCH Positions For Installing Child Restraints In This Vehicle

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A0503000872US

Regular Cab LATCH Positions

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Top Tether Anchorage Symbol

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A0503000873US

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natural_image Top-down line drawing of a car showing its rear seats and dashboard (no text or symbols)

A0503000874US

Crew Cab 60/40 Split Bench LATCH Positions Crew Cab Full Bench LATCH Positions

Lower Anchorage Symbol (2 Anchorage Per Seating Position)
Top Tether Anchorage Symbol

Lower Anchorage Symbol (2 Anchorage Per Seating Position)
Top Tether Anchorage Symbol

Frequently Asked Questions About Installing Child Restraints With LATCH
What is the weight limit (child's weight + weight of the child restraint) for using the LATCH anchorage system to attach the child restraint?65 lbs (29.5 kg)Use the LATCH anchorage system until the combined weight of the child and the child restraint is 65 lbs (29.5 kg). Use the seat belt and tether anchor instead of the LATCH system once the combined weight is more than 65 lbs (29.5 kg).
Can the LATCH anchorages and the seat belt be used together to attach a rear-facing or forward-facing child restraint?NoDo not use the seat belt when you use the LATCH anchorage system to attach a rear-facing or forward-facing child restraint.Booster seats may be attached to the LATCH anchorages if allowed by the booster seat manufacturer. See your booster seat owner's manual for more information.
Can a child seat be installed in the center position using the inner LATCH lower anchorages from the outboard seating positions?N/A - Regular / Crew Split Rear BenchNo - Crew Full Rear BenchRegular Cab Front/Full Bench Rear Seat: Use the seat belt and tether anchor to install a child seat in the center seating position.Split Bench Rear Seat: Use the supplied center lower anchorages to install a child restraint in the center position.
Can two child restraints be attached using a common lower LATCH anchorage?NoNever “share” a LATCH anchorage with two or more child restraints. If the center position does not have dedicated LATCH lower anchorages, use the seat belt to install a child seat in the center position next to a child seat using the LATCH anchorages in an outboard position.
Can the rear-facing child restraint touch the back of the front passenger seat?YesThe child seat may touch the back of the front passenger seat if the child restraint manufacturer also allows contact. See your child restraint owner's manual for more information.
Can the rear head restraints be removed? YesThe head restraints can be removed in every rear seating position if they interfere with the installation of the child restraint ➔ page 38.

Locating The LATCH Anchorages — Crew Cab Only

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The lower anchorages are round bars that are found at the rear of the seat cushion where it meets the seatback. They are just visible when you lean into the rear seat to install the child restraint. You will easily feel them if you run your finger along the gap between the seatback and seat cushion.

RAM 4500 Chassis Cab (2021) - Locating The LATCH Anchorages — Crew Cab Only - 2

natural_image Interior view of a car seatbelt with two black arrows pointing to specific seats (no text or symbols present)

Crew Cab Rear Outboard Seats Driver Side

Locating The Upper Tether Anchorages

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Regular Cab models have tether strap anchorages behind the front center and right seats. Crew Cab models have tether strap anchorages located behind each of the rear seats.

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text_image Diagram of car interior showing seatbelt and seatbelt connector with numbered labels

Regular Cab Tether Anchorages (Behind Covers)

1 - Tether Strap Hook
2 — Tether Strap To Child Restraint
3 - Tether Anchor

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natural_image Interior view of a car seatbelt with a black arrow pointing to the seat (no text or symbols)

Crew Cab Outboard Tether Anchorage

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natural_image Interior view of a car showing the rear seat, dashboard, and seatbelt (no text or symbols visible)

Crew Cab Center Tether Anchorage With Head Restraint In Raised Position

LATCH-compatible child restraint systems will be equipped with a rigid bar or a flexible strap on each side. Each will have a hook or connector to attach to the lower anchorage and a way to tighten the connection to the anchorage.

Forward-facing child restraints and some rear-facing child restraints will also be equipped with a tether strap. The tether strap will have a hook at the end to attach to the top tether anchorage and a way to tighten the strap after it is attached to the anchorage.

Center Seat LATCH

Regular Cab or Crew Cab Full Bench Rear Seat: No Lower Center LATCH Anchorages Available

WARNING!

  • Do not install a child restraint in the center position using the LATCH system. This position is not approved for installing child seats using the LATCH attachments. You must use the seat belt and tether anchor to install a child seat in the center seating position.
  • Never use the same lower anchorage to attach more than one child restraint. For typical installation instructions, see page 321.

Crew Cab Split Bench Rear Seat: Center LATCH Anchorage Available

If a child restraint installed in the center position blocks the seat belt webbing or buckle for the outboard position, do not use that outboard position. If a child seat in the center position blocks the outboard LATCH anchors or seat belt, do not install a child seat in that outboard position.

WARNING!

Never use the same lower anchorage to attach more than one child restraint. For typical installation instructions, see ➤ page 321.

Always follow the directions of the child restraint manufacturer when installing your child restraint. Not all child restraint systems will be installed as described here.

To Install A LATCH-Compatible Child Restraint

If the selected seating position has a Switchable Automatic Locking Retractor (ALR) seat belt, stow the seat belt, following the

instructions below. See ➔ page 322 to check what type of seat belt each seating position has.

  1. Loosen the adjusters on the lower straps and on the tether strap of the child seat so that you can more easily attach the hooks or connectors to the vehicle anchorages.
  2. Place the child seat between the lower anchorages for that seating position. If the second row seat can be reclined, you may recline the seat and/or raise the head restraint (if adjustable) to get a better fit. If the rear seat can be moved forward and rearward in the vehicle, you may wish to move it to its rear-most position to make room for the child seat. You may also move the front seat forward to allow more room for the child seat.
  3. Attach the lower hooks or connectors of the child restraint to the lower anchorages in the selected seating position.
  4. If the child restraint has a tether strap, connect it to the top tether anchorage. See ➤ page 327 for directions to attach a tether anchor.

322 SAFETY

  1. Tighten all of the straps as you push the child restraint rearward and downward into the seat. Remove slack in the straps according to the child restraint manufacturer's instructions.
  2. Test that the child restraint is installed tightly by pulling back and forth on the child seat at the belt path. It should not move more than 1 inch (25.4 mm) in any direction.

How To Stow An Unused Switchable-ALR (ALR) Seat Belt:

When using the LATCH attaching system to install a child restraint, stow all ALR seat belts that are not being used by other occupants or being used to secure child restraints. An unused belt could injure a child if they play with it and accidentally lock the seat belt retractor. Before installing a child restraint using the LATCH system, buckle the seat belt behind the child restraint and out of the child's reach. If the buckled seat belt interferes with the child restraint installation, instead of buckling it behind the child restraint, route the seat belt through the child restraint belt path and then buckle it. Do not lock the seat belt. Remind all children in the vehicle that the seat belts are not toys and that they should not play with them.

WARNING!

  • Improper installation of a child restraint to the LATCH anchorages can lead to failure of the restraint. The child could be badly injured or killed. Follow the child restraint manufacturer's directions exactly when installing an infant or child restraint.
  • Child restraint anchorages are designed to withstand only those loads imposed by correctly-fitted child restraints. Under no circumstances are they to be used for adult seat belts, harnesses, or for attaching other items or equipment to the vehicle.

Installing Child Restraints Using The Vehicle Seat Belt

Child restraint systems are designed to be secured in vehicle seats by lap belts or the lap belt portion of a lap/shoulder belt.

WARNING!

  • Improper installation or failure to properly secure a child restraint can lead to failure of the restraint. The child could be badly injured or killed.
  • Follow the child restraint manufacturer's directions exactly when installing an infant or child restraint.

The seat belts in the passenger seating positions are equipped with either a Switchable Automatic Locking Retractor (ALR) or a cinching latch plate or both. Both types of seat belts are designed to keep the lap portion of the seat belt tight around the child restraint so that it is not necessary to use a locking clip. The ALR retractor can be "switched" into a locked mode by pulling all of the webbing out of the retractor and then letting the webbing retract back into the retractor. If it is locked, the ALR will make a clicking noise while the webbing is pulled back into the retractor. The cinching latch plate is designed to hold the lap portion of the seat belt tight when webbing is pulled tight and straight through a child restraint's belt path.

See the "Automatic Locking Mode" description page 301 for additional information on ALR.

Please see the table below and the following sections for more information.

Lap/Shoulder Belt Systems For Installing Child Restraints In This Vehicle

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text_image ALR ALR A0503000867US

Regular Cab Automatic Locking Retractor (ALR) Locations

ALR — Switchable Automatic Locking Retractor Top Tether Anchorage Symbol

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text_image ALR Levelform Levelform ALR Levelform ALR A0503000968US

Crew Cab Automatic Locking Retractor (ALR) Locations

Cinching Latch plate — Cinching Latch plate ALR — Switchable Automatic Locking Retractor Top Tether Anchorage Symbol

Frequently Asked Questions About Installing Child Restraints With Seat Belts
What is the weight limit (child's weight + weight of the child restraint) for using the Tether Anchor with the seat belt to attach a forward facing child restraint?Weight limit of the Child RestraintAlways use the tether anchor when using the seat belt to install a forward facing child restraint, up to the recommended weight limit of the child restraint.
Can the rear-facing child restraint touch the back of the front passenger seat?YesContact between the front passenger seat and the child restraint is allowed, if the child restraint manufacturer also allows contact.
Can the rear head restraints be removed? YesThe head restraints can be removed in every rear seating position if they interfere with the installation of the child restraint ➔ page 38.
Can the buckle stalk be twisted to tighten the seat belt against the belt path of the child restraint?Yes – Cinching Latch PlateNo – ALRIn positions with cinching latch plates (CINCH), the buckle stalk may be twisted up to 3 full turns. Do not twist the buckle stalk in a seating position with an ALR retractor.

Installing A Child Restraint With A Switchable Automatic Locking Retractor (ALR):

Child restraint systems are designed to be secured in vehicle seats by lap belts or the lap belt portion of a lap/shoulder belt.

WARNING!

  • Improper installation or failure to properly secure a child restraint can lead to failure of the restraint. The child could be badly injured or killed.
  • Follow the child restraint manufacturer's directions exactly when installing an infant or child restraint.

1. For Crew Cab Models

Place the child seat in the center of the seating position. If the second row seat can be reclined, you may recline the seat and/or raise the head restraint (if adjustable) to get a better fit. If the rear seat can be moved forward and rearward in the vehicle, you may wish to move it to its rear-most position to make room for the child seat. You may also move the front seat forward to allow more room for the child seat.

For Regular Cab Models

Place the child seat in the center of the seating position. Move the vehicle seat as far rearward as possible to keep the child as far from the passenger air bag as possible.

  1. Pull enough of the seat belt webbing from the retractor to pass it through the belt path of the child restraint. Do not twist the belt webbing in the belt path.
  2. Slide the latch plate into the buckle until you hear a "click."
  3. Pull on the webbing to make the lap portion tight against the child seat.
  4. To lock the seat belt, pull down on the shoulder part of the belt until you have pulled all the seat belt webbing out of the retractor. Then, allow the webbing to retract back into the retractor. As the webbing retracts, you will hear a clicking sound. This means the seat belt is now in the Automatic Locking mode.

  5. Try to pull the webbing out of the retractor. If it is locked, you should not be able to pull out any webbing. If the retractor is not locked, repeat step 5.

  6. Finally, pull up on any excess webbing to tighten the lap portion around the child restraint while you push the child restraint rearward and downward into the vehicle seat.
  7. If the child restraint has a top tether strap and the seating position has a top tether anchorage, connect the tether strap to the anchorage and tighten the tether strap. See ➞ page 327 for directions to attach a tether anchor.
  8. Test that the child restraint is installed tightly by pulling back and forth on the child seat at the belt path. It should not move more than 1 inch (25.4 mm) in any direction.

Any seat belt system will loosen with time, so check the belt occasionally, and pull it tight if necessary.

Installing A Child Restraint With A Cinching Latch Plate (CINCH) — If Equipped:

Child restraint systems are designed to be secured in vehicle seats by lap belts or the lap belt portion of a lap/shoulder belt.

WARNING!

  • Improper installation or failure to properly secure a child restraint can lead to failure of the restraint. The child could be badly injured or killed.
  • Follow the child restraint manufacturer's directions exactly when installing an infant or child restraint.

  • Place the child seat in the center of the seating position. If the second row seat can be reclined, you may recline the seat and/or raise the head restraint (if adjustable) to get a better fit. If the rear seat can be moved forward and rearward in the vehicle, you may wish to move it to its rear-most position to make room for the child seat. You may also move the front seat forward to allow more room for the child seat.

  • Next, pull enough of the seat belt webbing from the retractor to pass it through the belt path of the child restraint. Do not twist the belt webbing in the belt path.

  • Slide the latch plate into the buckle until you hear a "click."
  • Finally, pull up on any excess webbing to tighten the lap portion around the child restraint while you push the child restraint rearward and downward into the vehicle seat.
  • If the child restraint has a top tether strap and the seating position has a top tether anchorage, connect the tether strap to the anchorage and tighten the tether strap. See ➕ page 327 for directions to attach a tether anchor.
  • Test that the child restraint is installed tightly by pulling back and forth on the child seat at the belt path. It should not move more than 1 inch (25.4 mm) in any direction.

Any seat belt system will loosen with time, so check the belt occasionally, and pull it tight if necessary.

If the buckle or the cinching latch plate is too close to the belt path opening of the child restraint, you may have trouble tightening the seat belt. If this happens, disconnect the latch plate from the buckle and twist the short buckle-end belt up to three full turns to shorten it. Insert the latch plate into the buckle with the release button facing out, away from the child restraint. Repeat steps 4 to 6, above, to complete the installation of the child restraint.

If the belt still cannot be tightened after you shorten the buckle, disconnect the latch plate from the buckle, turn the buckle around one half turn, and insert the latch plate into the buckle again. If you still cannot make the child restraint installation tight, try a different seating position.

Installing Child Restraints Using The Top Tether Anchorage

WARNING!

Do not attach a tether strap for a rear-facing car seat to any location in front of the car seat, including the seat frame or a tether anchorage. Only attach the tether strap of a rear-facing car seat to the tether anchorage that is approved for that seating position, located behind the top of the vehicle seat. For the location of approved tether anchorages in your vehicle, see ➤ page 31

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text_image Diagram showing three variations of a seatbelt with diagonal lines and 'OK' labels indicating no change.

Regular Cab Trucks:

In the regular cab truck, the top tether anchorages are located behind the center and right passenger seats. There is a plastic cover over each anchorage. To attach the tether strap of the child restraint:

  1. Place the child restraint on the seat and adjust the tether strap so that it will reach over the seat back, under the head restraint and to the tether anchor directly behind the seat.

RAM 4500 Chassis Cab (2021) - Regular Cab Trucks: - 1

text_image Diagram of car interior showing seatbelt and dashboard with numbered labels pointing to specific components

Regular Cab Tether Anchorages

1 - Tether Strap Hook
2 – Tether Strap To Child Restraint
3 - Tether Anchor

  1. Route the tether strap to provide the most direct path between the anchorage and the child seat. The tether strap should go between the head restraint posts underneath the head restraint. You may need to adjust the head

restraint to the upward position to pass the tether strap underneath the head restraint and between its posts.

  1. Lift the cover (if so equipped), and attach the hook to the square opening in the sheet metal. Tighten the tether strap according to the child seat manufacturer's instructions.

WARNING!

Never place a rear-facing child restraint in front of an air bag. A deploying Passenger Front Air Bag can cause death or serious injury to a child 12 years or younger, including a child in a rear-facing child restraint.

Crew Cab Trucks

The top tether anchorages in this vehicle are tether strap loops located between the rear glass and the back of the rear seat. There is a tether strap loop located behind each seating position. Follow the steps below to attach the tether strap of the child restraint.

328 SAFETY

Right Or Left Outboard Seats:

  1. Raise the head restraint and reach between the rear seat and rear glass to access the tether strap loop.

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Head Restraint In Raised Position

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natural_image Interior view of a car showing the rear seat, front seats, and a black arrow pointing to the side seat (no text or symbols present)

Tether Strap Loop With Center Head Restraint In Raised Position

  1. Place a child restraint on the seat and adjust the tether strap so that it will reach over the seat back, under the head restraint, through the tether strap loop behind the seat and over to the tether strap loop behind the center seat.
  2. Pass the tether strap hook under the head restraint behind the child seat, though the tether strap loop behind the seat and over to the center tether strap loop.

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natural_image Interior view of a car seatbelt seat with a black arrow pointing to the seat (no text or symbols visible)

Tether Strap Through Outboard Tether Strap Loop

  1. Attach the hook to the center tether strap loop (see diagram). Tighten the tether strap according to the child seat manufacturer's instructions.

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natural_image Interior view of a car showing two seats with seatbelt clips, no text or symbols present

Tether Strap Through Outboard Tether Strap Loop And Attached To Center Tether Strap Loop

NOTE:

If there are child seats in both of the outboard (left and right) seating positions, the tether strap hooks of both child seats should be connected to the center tether strap loop. This is the correct way to tether two outboard child seats.

Center Seat:

  1. Raise the head restraint and reach between the rear seat and rear glass to access the tether strap loop.

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Tether Strap Loop With Head Restraint In Raised Position

  1. Place a child restraint on the seat and adjust the tether strap so that it will reach over the seat back, under the head restraint, through the tether strap loop behind the seat and over to the tether strap loop behind either the right or left outboard seat.

  2. Pass the tether strap hook under the head restraint behind the child seat, though the tether strap loop behind the seat and over to the right or left outboard tether strap loop.

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Tether Strap Through Center Tether Strap Loop

  1. Attach the hook to the outboard tether strap loop (see diagram). Tighten the tether strap according to the child seat manufacturer's instructions.

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natural_image Interior view of a car showing seat, rear seats, and dashboard (no text or symbols visible)

Tether Strap Through Center Tether Strap Loop And Attached To Outboard Tether Strap Loop

Installing Three Child Restraints:

  1. Place a child restraint on each outboard rear seat. Route the tether straps following the directions for right and left seating positions, above.
  2. Attach both hooks to the center tether strap loop, but do not tighten the straps yet.
  3. Place a child restraint on the center rear seat. Route the tether strap following the directions for the center seating position, above.
  4. Attach the hook to the outboard tether strap loop.

  5. Tighten the tether straps according to the child seat manufacturer's instructions, tightening the right and left tether straps before the center tether strap.

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natural_image Interior view of a car showing seat compartments and rear seats with two black arrows pointing to specific seats (no text or symbols present)

Outboard And Center Seating Positions Shown

WARNING!

  • An incorrectly anchored tether strap could lead to increased head motion and possible injury to the child. Use only the anchorage position directly behind the child seat to secure a child restraint top tether strap.
  • If your vehicle is equipped with a split rear seat, make sure the tether strap does not slip into the opening between the seat-backs as you remove slack in the strap.

SAFETY TIPS

TRANSPORTING PASSENGERS

NEVER TRANSPORT PASSENGERS IN THE CARGO AREA.

WARNING!

  • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death.
  • It is extremely dangerous to ride in a cargo area, inside or outside of a vehicle. In a collision, people riding in these areas are more likely to be seriously injured or killed.
  • Do not allow people to ride in any area of your vehicle that is not equipped with seats and seat belts.
  • Be sure everyone in your vehicle is in a seat and using a seat belt properly.

TRANSPORTING PETS

Air Bags deploying in the front seat could harm your pet. An unrestrained pet will be thrown about and possibly injured, or injure a passenger during panic braking or in a collision.

Pets should be restrained in the rear seat (if equipped) in pet harnesses or pet carriers that are secured by seat belts.

SAFETY CHECKS YOU SHOULD MAKE INSIDE THE VEHICLE

Seat Belts

Inspect the seat belt system periodically, checking for cuts, frays, and loose parts. Damaged parts must be replaced immediately. Do not disassemble or modify the system.

Front seat belt assemblies must be replaced after a collision. Rear seat belt assemblies must be replaced after a collision if they have been damaged (i.e., bent retractor, torn webbing, etc.). If there is any question regarding seat belt or retractor condition, replace the seat belt.

Air Bag Warning Light

The Air Bag Warning Light will turn on for four to eight seconds as a bulb check when the ignition switch is first placed in ON/RUN. If the light is either not on during starting, stays on, or turns on while driving, have the system inspected at an authorized dealer as soon as possible. After the bulb check, this light will illuminate with a single chime when a fault with the Air Bag System has been detected. It will stay on until the fault is removed. If the light comes on intermittently or remains on while driving, have an authorized dealer service the vehicle immediately page 292.

Defroster

Check operation by selecting the defrost mode and place the blower control on high speed. You should be able to feel the air directed against the windshield. See an authorized dealer for service if your defroster is inoperable.

Floor Mat Safety Information

Always use floor mats designed to fit your vehicle. Only use a floor mat that does not interfere with the operation of the accelerator, brake or clutch pedals. Only use a floor mat that is securely attached using the floor mat fasteners so it cannot slip out of position and interfere with the accelerator, brake or clutch pedals or impair safe operation of your vehicle in other ways.

WARNING!

An improperly attached, damaged, folded, or stacked floor mat, or damaged floor mat fasteners may cause your floor mat to interfere with the accelerator, brake, or clutch pedals and cause a loss of vehicle control. To prevent SERIOUS INJURY or DEATH:

- ALWAYS securely attach your floor mat using the floor mat fasteners. DO NOT install your floor mat upside down or turn your floor mat over. Lightly pull to confirm mat is secured using the floor mat fasteners on a regular basis.

(Continued)

WARNING! (Continued)

  • ALWAYS REMOVE THE EXISTING FLOOR MAT FROM THE VEHICLE before installing any other floor mat. NEVER install or stack an additional floor mat on top of an existing floor mat.
  • ONLY install floor mats designed to fit your vehicle. NEVER install a floor mat that cannot be properly attached and secured to your vehicle. If a floor mat needs to be replaced, only use a FCA approved floor mat for the specific make, model, and year of your vehicle.
  • ONLY use the driver's side floor mat on the driver's side floor area. To check for interference, with the vehicle properly parked with the engine off, fully depress the accelerator, the brake, and the clutch pedal (if present) to check for interference. If your floor mat interferes with the operation of any pedal, or is not secure to the floor, remove the floor mat from the vehicle and place the floor mat in your trunk.

(Continued)

WARNING! (Continued)

  • ONLY use the passenger's side floor mat on the passenger's side floor area.
  • ALWAYS make sure objects cannot fall or slide into the driver's side floor area when the vehicle is moving. Objects can become trapped under accelerator, brake, or clutch pedals and could cause a loss of vehicle control.
  • NEVER place any objects under the floor mat (e.g., towels, keys, etc.). These objects could change the position of the floor mat and may cause interference with the accelerator, brake, or clutch pedals.
  • If the vehicle carpet has been removed and re-installed, always properly attach carpet to the floor and check the floor mat fasteners are secure to the vehicle carpet. Fully depress each pedal to check for interference with the accelerator, brake, or clutch pedals then re-install the floor mats.

(Continued)

WARNING! (Continued)

  • It is recommended to only use mild soap and water to clean your floor mats. After cleaning, always check your floor mat has been properly installed and is secured to your vehicle using the floor mat fasteners by lightly pulling mat.

PERIODIC SAFETY CHECKS YOU SHOULD MAKE OUTSIDE THE VEHICLE

Tires

Examine tires for excessive tread wear and uneven wear patterns. Check for stones, nails, glass, or other objects lodged in the tread or sidewall. Inspect the tread for cuts and cracks. Inspect sidewalls for cuts, cracks, and bulges. Check the lug nuts/bolt torque for tightness. Check the tires (including spare) for proper cold inflation pressure.

Have someone observe the operation of brake lights and exterior lights while you work the controls. Check turn signal and high beam indicator lights on the instrument panel.

Door Latches

Check for proper closing, latching, and locking.

Fluid Leaks

Check area under the vehicle after overnight parking for fuel, coolant, oil, or other fluid leaks. Also, if gasoline fumes are detected or if fuel or brake fluid leaks are suspected, the cause should be located and corrected immediately.

EXHAUST GAS

WARNING!

Exhaust gases can injure or kill. They contain carbon monoxide (CO), which is colorless and odorless. Breathing it can make you unconscious and can eventually poison you. To avoid breathing (CO), follow these safety tips:

  • Do not run the engine in a closed garage or in confined areas any longer than needed to move your vehicle in or out of the area.
  • If you are required to drive with the trunk/liftgate/rear doors open, make sure that all windows are closed and the climate control BLOWER switch is set at high speed. DO NOT use the recirculation mode.
  • If it is necessary to sit in a parked vehicle with the engine running, adjust your heating or cooling controls to force outside air into the vehicle. Set the blower at high speed.

The best protection against carbon monoxide entry into the vehicle body is a properly maintained engine exhaust system.

Whenever a change is noticed in the sound of the exhaust system, when exhaust fumes can be detected inside the vehicle, or when the underside or rear of the vehicle is damaged, have an authorized dealer inspect the complete exhaust system and adjacent body areas for broken, damaged, deteriorated, or mispositioned parts. Open seams or loose connections could permit exhaust fumes to seep into the passenger compartment. In addition, inspect the exhaust system each time the vehicle is raised for lubrication or oil change. Replace as required.

CARBON MONOXIDE WARNINGS

WARNING!

Carbon monoxide (CO) in exhaust gases is deadly. Follow the precautions below to prevent carbon monoxide poisoning:

  • Do not inhale exhaust gases. They contain carbon monoxide, a colorless and odorless gas, which can kill. Never run the engine in a closed area, such as a garage, and never sit in a parked vehicle with the engine running for an extended period. If the vehicle is stopped in an open area with the engine running for more than a short period, adjust the ventilation system to force fresh, outside air into the vehicle.
  • Guard against carbon monoxide with proper maintenance. Have the exhaust system inspected every time the vehicle is raised. Have any abnormal conditions repaired promptly. Until repaired, drive with all side windows fully open.

IN CASE OF EMERGENCY

HAZARD WARNING FLASHERS

The Hazard Warning Flashers switch is located on the upper switch bank just below the radio.

RAM 4500 Chassis Cab (2021) - HAZARD WARNING FLASHERS - 1

natural_image Interior view of a car dashboard with control panel and directional arrow (no text or symbols)

Hazard Warning Flashers Switch

RAM 4500 Chassis Cab (2021) - HAZARD WARNING FLASHERS - 2

natural_image Interior view of a car dashboard with control panel and navigation buttons (no text or symbols visible)

Hazard Warning Flashers Switch

NOTE:

If your vehicle is equipped with a 12-inch Uconnect display, the Hazard Warning Flashers switch is located above the display.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Top-down view of a car dashboard with air vent and control panel (no visible text or symbols)

Hazard Warning Flashers Switch With 12-inch Display

Push the switch to turn on the Hazard Warning Flashers. When the switch is activated, all directional turn signals will flash on and off to warn oncoming traffic of an emergency. Push the switch a second time to turn off the Hazard Warning Flashers.

This is an emergency warning system and it should not be used when the vehicle is in motion. Use it when your vehicle is disabled and it is creating a safety hazard for other motorists.

When you must leave the vehicle to seek assistance, the Hazard Warning Flashers will continue to operate even though the ignition is placed in the OFF position.

NOTE:

With extended use the Hazard Warning Flashers may wear down your battery.

ASSIST AND SOS SYSTEM — IF EQUIPPED

NOTE:

Depending on the vehicles trim level, the overhead console may vary.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image 1 2 Assist And SOS Buttons A0703000040US

1 - ASSIST Button

2 - SOS Button

RAM 4500 Chassis Cab (2021) - NOTE: - 2

text_image Assist And SOS Buttons A0703000039US

1 - ASSIST Button

2 - SOS Button

If equipped, the overhead console contains an ASSIST and a SOS button.

WARNING!

ALWAYS obey traffic laws and pay attention to the road. ALWAYS drive safely with your hands on the steering wheel. You have full responsibility and assume all risks related to the use of the features and applications in this vehicle. Only use the features and applications when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

NOTE:

  • Your vehicle may be transmitting data as authorized by the subscriber ↩ page 449.
  • The SOS and ASSIST buttons will only function if you are connected to an operable LTE (voice/data) or 4G (data) network, which comes as a built in function. Other Uconnect services will only be operable if your SiriusXM Guardian™ service is active and you are connected to an operable LTE (voice/data) or 4G (data) network.

ASSIST Call

The ASSIST Button is used to automatically connect you to any one of the following support centers:

- Roadside Assistance – If you get a flat tire, or need a tow, just push the ASSIST button and you'll be connected to someone who can help. Roadside Assistance will know what vehicle you're driving and its location. Additional fees may apply for roadside assistance.

336 IN CASE OF EMERGENCY

  • SiriusXM Guardian™ Customer Care - In-vehicle support for SiriusXM Guardian™.
  • Vehicle Customer Care – Total support for all other vehicle issues.
  • Uconnect Customer Care - Total support for Radio, Phone and NAV issues.

SOS Call

  1. Push the SOS Call button on the overhead console.

NOTE:

In case the SOS Call button is pushed in error, there will be a 10 second delay before the SOS Call system initiates a call to a SOS operator. To cancel the SOS Call connection, push the SOS call button on the overhead console or press the cancellation button on the Device Screen. Termination of the SOS Call will turn off the green LED light on the overhead console.

  1. The LED light located within the ASSIST and SOS buttons on the overhead console will turn green once a connection to a SOS operator has been made.

  2. Once a connection between the vehicle and a SOS operator is made, the SOS Call system may transmit the following important vehicle information to a SOS operator:

  3. Indication that the occupant placed a SOS Call.
  4. The vehicle brand.
  5. The last known GPS coordinates of the vehicle.

  6. You should be able to speak with the SOS operator through the vehicle audio system to determine if additional help is needed.

WARNING!

ALWAYS obey traffic laws and pay attention to the road. ALWAYS drive safely with your hands on the steering wheel. You have full responsibility and assume all risks related to the use of the features and applications in this vehicle. Only use the features and applications when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

NOTE:

  • Your vehicle may be transmitting data as authorized by the subscriber.
  • Once a connection is made between the vehicle's SOS Call system and the SOS operator, the SOS operator may be able to open a voice connection with the vehicle to determine if additional help is needed. Once the SOS operator opens a voice connection with the vehicle's SOS Call system, the operator should be able to speak with you or other vehicle occupants and hear sounds occurring in the vehicle. The vehicle's SOS Call system will attempt to remain connected with the SOS operator until the SOS operator terminates the connection.
  • The SOS operator may attempt to contact appropriate emergency responders and provide them with important vehicle information and GPS coordinates.

WARNING!

  • If anyone in the vehicle could be in danger (e.g., fire or smoke is visible, dangerous road conditions or location), do not wait for voice contact from an Emergency Services Agent. All occupants should exit the vehicle immediately and move to a safe location.
  • Never place anything on or near the vehicle's operable network and GPS antennas. You could prevent operable network and GPS signal reception, which can prevent your vehicle from placing an emergency call. An operable network and GPS signal reception is required for the SOS Call system to function properly.

(Continued)

WARNING! (Continued)

  • The SOS Call system is embedded into the vehicle's electrical system. Do not add aftermarket electrical equipment to the vehicle's electrical system. This may prevent your vehicle from sending a signal to initiate an emergency call. To avoid interference that can cause the SOS Call system to fail, never add aftermarket equipment (e.g., two-way mobile radio, CB radio, data recorder, etc.) to your vehicle's electrical system or modify the antennas on your vehicle. IF YOUR VEHICLE LOSES BATTERY POWER FOR ANY REASON (INCLUDING DURING OR AFTER AN ACCIDENT), THE UCONNECT FEATURES, APPS AND SERVICES, AMONG OTHERS, WILL NOT OPERATE.
  • Modifications to any part of the SOS Call system could cause the air bag system to fail when you need it. You could be injured if the air bag system is not there to help protect you.

SOS Call System Limitations

Vehicles sold in Mexico DO NOT have SOS Call system capabilities.

SOS or other emergency line operators in Mexico may not answer or respond to SOS system calls.

If the SOS Call system detects a malfunction, any of the following may occur at the time the malfunction is detected, and at the beginning of each ignition cycle:

  • The overhead console light located within the ASSIST and SOS buttons will continuously illuminate red.
  • The Device Screen will display the following message: "Vehicle device requires service. Please contact an authorized dealer."
  • An In-Vehicle Audio message will state "Vehicle device requires service. Please contact an authorized dealer."

WARNING!

  • Ignoring the overhead console light could mean you will not have SOS Call services. If the overhead console light is illuminated, have an authorized dealer service the SOS Call system immediately.
  • The Occupant Restraint Control module turns on the air bag Warning Light on the instrument panel if a malfunction in any part of the system is detected. If the Air Bag Warning Light is illuminated, have an authorized dealer service the Occupant Restraint Control system immediately.

Even if the SOS Call system is fully functional, factors beyond FCA US LLC's control may prevent or stop the SOS Call system operation. These include, but are not limited to, the following factors:

• The ignition is in the OFF position.
- The vehicle's electrical systems are not intact.
- The SOS Call system software and/or hardware are damaged during a crash.

  • The vehicle battery loses power or becomes disconnected during a vehicle crash.
  • LTE (voice/data) or 4G (data) network and/or Global Positioning Satellite signals are unavailable or obstructed.
  • Equipment malfunction at the SOS operator facility.
  • Operator error by the SOS operator.
  • LTE (voice/data) or 4G (data) network congestion.
  • Weather.
    • Buildings, structures, geographic terrain, or tunnels.

WARNING!

ALWAYS obey traffic laws and pay attention to the road. ALWAYS drive safely with your hands on the steering wheel. You have full responsibility and assume all risks related to the use of the features and applications in this vehicle. Only use the features and applications when it is safe to do so. Failure to do so may result in an accident involving serious injury or death.

NOTE:

  • Your vehicle may be transmitting data as authorized by the subscriber.
  • Never place anything on or near the vehicle's LTE (voice/data) or 4G (data) and GPS antennas. You could prevent LTE (voice/data) or 4G (data) and GPS signal reception, which can prevent your vehicle from placing an emergency call. An operable LTE (voice/data) or 4G (data) network connection and a GPS signal is required for the SOS Call system to function properly.
  • Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

CAUTION!

To avoid damage to the mirror during cleaning, never spray any cleaning solution directly onto the mirror. Apply the solution onto a clean cloth and wipe the mirror clean.

Automatic SOS — If Equipped

Automatic SOS is a hands-free safety service that can immediately connect you with help in the event that your vehicle's airbags deploy. Please refer to your provided radio supplement for complete information.

JACKING AND TIRE CHANGING

WARNING!

  • Do not attempt to change a tire on the side of the vehicle close to moving traffic. Pull far enough off the road to avoid the danger of being hit when operating the jack or changing the wheel.
  • Being under a jacked-up vehicle is dangerous. The vehicle could slip off the jack and fall on you. You could be crushed. Never put any part of your body under a vehicle that is on a jack. If you need to get under a raised vehicle, take it to a service center where it can be raised on a lift.

(Continued)

WARNING! (Continued)

  • Never start or run the engine while the vehicle is on a jack.
  • The jack is designed to be used as a tool for changing tires only. The jack should not be used to lift the vehicle for service purposes. The vehicle should be jacked on a firm level surface only. Avoid ice or slippery areas.

4500/5500 MODELS

These vehicles do not come equipped with a jack.

NOTE:

Jacking and tire changing on 4500/5500 models should be performed by an authorized dealer, or knowledgeable service personnel with the appropriate heavy duty equipment, like a tire service company.

PREPARATIONS FOR JACKING

  1. Park the vehicle on a firm, level surface. Avoid ice or slippery areas.

WARNING!

Do not attempt to change a tire on the side of the vehicle close to moving traffic. Pull far enough off the road to avoid being hit when operating the jack or changing the wheel.

  1. Place the gear selector into PARK. On four-wheel drive vehicles, shift the transfer case to the 4WD Low position.
  2. Turn on the Hazard Warning Flashers.
  3. Apply the parking brake.
  4. Turn the ignition OFF.

340 IN CASE OF EMERGENCY

  1. Block both the front and rear of the wheel diagonally opposite the jacking position. For example, if the driver's front wheel is being changed, block the passenger's rear wheel.

RAM 4500 Chassis Cab (2021) - IN CASE OF EMERGENCY - 1

text_image Wheel Blocked A0707000523US

NOTE: Passengers should not remain in the vehicle when the vehicle is being jacked.

JACKING INSTRUCTIONS 4500 AND 5500 SERIES

WARNING!

Carefully follow these tire changing warnings to help prevent personal injury or damage to your vehicle:

  • Always park on a firm, level surface as far from the edge of the roadway as possible before raising the vehicle.
  • Turn on the Hazard Warning Flashers.
  • Apply the parking brake firmly and set the transmission in PARK.
  • Block the wheel diagonally opposite the wheel to be raised.
  • Never start or run the engine with the vehicle on a jack.
  • Do not let anyone sit in the vehicle when it is on a jack.
  • Do not get under the vehicle when it is on a jack. If you need to get under a raised vehicle, take it to a service center where it can be raised on a lift.

(Continued)

WARNING! (Continued)

  • Only use the jack in the positions indicated and for lifting this vehicle during a tire change.
  • If working on or near a roadway, be extremely careful of motor traffic.
  • To assure that spare tires, flat or inflated, are securely stowed, spares must be stowed with the valve stem facing the ground.

RAM 4500 Chassis Cab (2021) - WARNING! (Continued) - 1

text_image Safety warning icons with Chinese labels, including no violations, a car, a hazard symbol, and a pointing hand gesture.

060600714

Jack Warning Label

CAUTION!

Do not attempt to raise the vehicle by jacking on locations other than those indicated in the Jacking Instructions for this vehicle.

  1. If equipped, remove the spare wheel, jack, and tools from storage.
  2. Using the lug wrench, loosen, but do not remove, the lug nuts by turning them counterclockwise one turn while the wheel is still on the ground.
  3. When changing the front wheel, assemble the jack driver to the jack and connect the jack driver to the extension tube. Place the jack under the axle as close to the tire as possible with the jack driver extending to the front. Connect the extension tubes and lug wrench.

RAM 4500 Chassis Cab (2021) - CAUTION! - 1

natural_image Front view of a car with two upward arrows indicating rearview or side profile (no text or symbols)

Front Jacking Locations

When changing a rear wheel, assemble the jack driver to the jack and connect the jack driver to the extension tubes. Securely place the jack under the sway bar bracket (unless both tires are flat on one side, then place jack under shock bracket) facing forward in vehicle. Connect the extension tubes and lug wrench.

RAM 4500 Chassis Cab (2021) - CAUTION! - 2

natural_image Front view of a vehicle chassis with two upward arrows indicating motion or assembly (no text or symbols present)

Rear Jacking Location

Before raising the wheel off the ground, make sure that the jack will not damage surrounding truck parts and adjust the jack position as required.

NOTE:

If the jack will not lower by turning the dial (thumbwheel) by hand, it may be necessary to use the jack driver in order to lower the jack.

  1. By rotating the lug wrench clockwise, raise the vehicle until the wheel just clears the surface.

WARNING!

Raising the vehicle higher than necessary can make the vehicle less stable. It could slip off the jack and hurt someone near it. Raise the vehicle only enough to remove the tire.

  1. Remove the lug nuts and pull the wheel off. Install the spare wheel and lug nuts with the cone shaped end of the nuts toward the wheel on Single Rear-Wheel (SRW) models. On Dual Rear-Wheel models (DRW) the lug nuts are a two-piece assembly with a flat face. Lightly tighten the nuts. To avoid risk of forcing the vehicle off the jack, do not fully tighten the nuts until the vehicle has been lowered.
  2. Using the lug wrench, finish tightening the nuts using a crisscross pattern ➔ page 432. If in doubt about the correct tightness, have them checked with a torque wrench by an authorized dealer or at a service station.

WARNING!

A loose tire or jack thrown forward in a collision or hard stop, could endanger the occupants of the vehicle. Always stow the jack parts and the spare tire in the places provided.

  1. Install wheel center cap (if equipped) and remove wheel blocks. Do not install chrome or aluminum wheel center caps on the spare wheel. This may result in cap damage.
  2. Lower the jack to its fully closed position. If the jack will not lower by turning the dial (thumbwheel) by hand, it may be necessary to use the jack driver in order to lower the jack. Stow the replaced tire, jack, and tools as previously described.
  3. Adjust the tire pressure when possible.
  4. After 25 miles (40 km), check the lug nut torque ↘ page 432 with a torque wrench to ensure that all lug nuts are properly seated against the wheel.

Dual Rear Wheels

Slots in the wheels will assist in properly orienting the inner and outer wheels. Align these slots when assembling the wheels for best access to the tire valve on the inner wheel. The tires of both dual wheels must be completely off the ground when tightening to ensure wheel centering and maximum wheel clamping.

Dual wheel models require a special heavy-duty lug nut tightening adapter (included with the vehicle) to correctly tighten the lug nuts. Also, when it is necessary to remove and install dual rear wheels, use a proper vehicle lifting device.

NOTE:

When installing a spare tire (if equipped) as part of a dual rear wheel end combination, the tire diameter of the two individual tires must be compared. If there is a significant difference, the larger tire should be installed in a front location. The correct direction of rotation for dual tire installations must also be observed.

It is recommended that wheel stud nuts be kept torqued to specifications at all times. Torque wheel stud nuts to specifications at each lubrication interval ↩ page 432.

Wheel Nuts

All wheel nuts should be tightened occasionally to eliminate the possibility of wheel studs being sheared or the bolt holes in the wheels becoming elongated. This is especially important during the first few hundred miles/kilometers of operation to allow the wheel nuts to become properly set. All wheel nuts should first be firmly seated against the wheel. The wheel nuts should then be tightened to recommended torque. Tighten the wheel nuts to final torque in increments. Progress around the bolt circle, tightening the wheel nut opposite to the wheel nut just previously tightened until final torque is achieved page 432.

To Stow The Flat Or Spare — If Equipped

Refer to Upfitters Body Builder's Guide for information on stowing your spare tire (if equipped).

HUB CAPS/WHEEL COVERS — IF EQUIPPED

The hub caps must be removed before raising the vehicle off the ground.

CAUTION!

Use extreme caution when removing the front and rear wheel covers. Damage can occur to the center cap and/or the wheel if screwdriver type tools are used. A pulling motion, not a pry off motion, is recommended to remove the caps.

For 3500 Single Rear-Wheel (SRW) models, use the flat end of the lug wrench to hook and pull off the hub cap. Find the opening in the hub cap, insert the lug wrench, and pull off the cap. If you need to pry against the wheel, protect the wheel surface.

RAM 4500 Chassis Cab (2021) - CAUTION! - 1

natural_image Mechanical assembly diagram showing a wheel and gear assembly with a black arrow pointing to a component (no text or symbols present)

Lug Wrench Insertion Location – Hub Cap

On 3500 models with Dual Rear-Wheels (DRW), you must first remove the hub caps—use the procedure noted for the single rear wheel. For the wheel covers (wheel skins), insert the flat end of the lug wrench between the outer edge of the wheel cover and the wheel. Pry against the wheel to remove the wheel cover. Repeat this procedure around the wheel until the cover pops off.

RAM 4500 Chassis Cab (2021) - CAUTION! - 2

natural_image Mechanical assembly diagram showing a brake disc and wheel assembly with an arrow indicating motion direction (no text or symbols)

Lug Wrench Insertion Location — Wheel Cover

CAUTION!

- Use a pulling motion to remove the hub cap. Do not use a twisting motion when removing the hub cap, damage to the hub cap; finish may occur.

(Continued)

CAUTION! (Continued)

- The rear hub caps on the dual rear wheel has two pull off notches. Make sure that the hook of the jack handle driver is located squarely in the cap notch before attempting to pull off.

Replace the wheel covers using a rubber mallet to ease the installation. Align the wheel cover vent holes to the wheel vent holes. Tap on the wheel cover as needed to firmly seat it evenly around the wheel.

JUMP STARTING

If your vehicle has a discharged battery, it can be jump started using a set of jumper cables and a battery in another vehicle, or by using a portable battery booster pack. Jump starting can be dangerous if done improperly, so please follow the procedures in this section carefully.

WARNING!

Do not attempt jump starting if the battery is frozen. It could rupture or explode and cause personal injury.

CAUTION!

Do not use a portable battery booster pack or any other booster source with a system voltage greater than 12 Volts or damage to the battery, starter motor, alternator or electrical system may occur.

NOTE:

When using a portable battery booster pack, follow the manufacturer's operating instructions and precautions.

PREPARATIONS FOR JUMP START

The battery in your vehicle is located in the front of the engine compartment, behind the left headlight assembly.

RAM 4500 Chassis Cab (2021) - PREPARATIONS FOR JUMP START - 1

natural_image Interior view of a vehicle engine bay with visible hoses and components (no text or symbols)

Battery Location

If you have a diesel engine, you may have two batteries, however jump start off the driver side battery.

The positive battery post may be covered with a protective cap if equipped. Lift up on the cap to gain access to the positive battery post. Do not jump off fuses. Only jump directly off positive post which has a positive (+) symbol on or around the post.

RAM 4500 Chassis Cab (2021) - PREPARATIONS FOR JUMP START - 2

natural_image Interior view of a car engine bay with hoses and a highlighted component (no visible text or symbols)

Positive (+) Battery Post

NOTE:

  1. Apply the parking brake, shift the automatic transmission into PARK and turn the ignition OFF.
  2. Turn off the heater, radio, and all electrical accessories.

  3. If using another vehicle to jump start the battery, park the vehicle within the jumper cables reach, apply the parking brake, and make sure the ignition is OFF.

WARNING!

  • Take care to avoid the radiator cooling fan whenever the hood is raised. It can start anytime the ignition switch is ON. You can be injured by moving fan blades.
  • Remove any metal jewelry such as rings, watch bands and bracelets that could make an inadvertent electrical contact. You could be seriously injured.
  • Batteries contain sulfuric acid that can burn your skin or eyes and generate hydrogen gas which is flammable and explosive. Keep open flames or sparks away from the battery.

WARNING!

Do not allow vehicles to touch each other as this could establish a ground connection and personal injury could result.

Failure to follow this jump starting procedure could result in personal injury or property damage due to battery explosion.

CAUTION!

Failure to follow these procedures could result in damage to the charging system of the booster vehicle or the discharged vehicle.

NOTE:

Make sure at all times that unused ends of jumper cables are not contacting each other or either vehicle while making connections.

Connecting The Jumper Cables

  1. Connect the positive (+) end of the jumper cable to the positive (+) post of the discharged vehicle.

NOTE:

Do not jump off fuses. Only jump directly off positive post.

  1. Connect the opposite end of the positive (+) jumper cable to the positive (+) post of the booster battery.
  2. Connect the negative (-) end of the jumper cable to the negative (-) post of the booster battery.
  3. Connect the opposite end of the negative (-) jumper cable to a good engine ground. A "ground" is an exposed metallic/ unpainted part of the engine, frame or chassis, such as an accessory bracket or large bolt. The ground must be away from the battery and fuel injection system.

WARNING!

Do not connect the jumper cable to the negative (-) post of the discharged battery. The resulting electrical spark could cause the battery to explode and could result in personal injury.

  1. Start the engine in the vehicle that has the booster battery, let the engine idle a few minutes, and then start the engine in the vehicle with the discharged battery.

CAUTION!

Do not connect jumper cable to any of the fuses on the positive battery terminal. The resulting electrical current will blow the fuse.

  1. Once the engine is started, follow the disconnecting procedure below.

Disconnecting The Jumper Cables

  1. Disconnect the negative (-) end of the jumper cable from the engine ground of the vehicle with the discharged battery.
  2. Disconnect the opposite end of the negative (-) jumper cable from the negative (-) post of the booster battery.
  3. Disconnect the positive (+) end of the jumper cable from the positive (+) post of the booster battery.
  4. Disconnect the opposite end of the positive (+) jumper cable from the positive (+) post of the vehicle with the discharged battery.

If frequent jump starting is required to start your vehicle you should have the battery and charging system inspected at an authorized dealer.

CAUTION!

Accessories plugged into the vehicle power outlets draw power from the vehicle's battery, even when not in use (i.e., cellular devices, etc.). Eventually, if plugged in long enough without engine operation, the vehicle's battery will discharge sufficiently to degrade battery life and/or prevent the engine from starting.

IF YOUR ENGINE OVERHEATS

In any of the following situations, you can reduce the potential for overheating by taking the appropriate action.

  • On the highways – slow down.
  • In city traffic — while stopped, place the transmission in NEUTRAL, but do not increase the engine idle speed while preventing vehicle motion with the brakes.

NOTE:

There are steps that you can take to slow down an impending overheat condition:

  • If your Air Conditioner (A/C) is on, turn it off. The A/C system adds heat to the engine cooling system and turning the A/C off can help remove this heat.
  • You can also turn the temperature control to maximum heat, the mode control to floor and the blower control to high. This allows the heater core to act as a supplement to the radiator and aids in removing heat from the engine cooling system.

WARNING!

You or others can be badly burned by hot engine coolant (antifreeze) or steam from your radiator. If you see or hear steam coming from under the hood, do not open the hood until the radiator has had time to cool. Never try to open a cooling system pressure cap when the radiator or coolant bottle is hot.

CAUTION!

Driving with a hot cooling system could damage your vehicle. If the temperature gauge reads HOT (H), pull over and stop the vehicle. Idle the vehicle with the air conditioner turned off until the pointer drops back into the normal range. If the pointer remains on HOT (H), and you hear continuous chimes, turn the engine off immediately and call for service.

In order to move the vehicle in cases where the transmission will not shift out of PARK (P) (such as a depleted battery), a Manual Park Release is available.

  1. Turn the engine OFF.
  2. Firmly apply the parking brake.
  3. Tilt the steering wheel to the full up position.
  4. Press and maintain firm pressure on the brake pedal.

  5. Insert a screwdriver or similar tool into the access port (ringed circle) on the bottom of the steering column, and push and hold the override release lever up.

RAM 4500 Chassis Cab (2021) - CAUTION! - 1

natural_image Interior view of a vehicle dashboard and steering wheel (no visible text or symbols)

Gear Selector Override Access Port Location

RAM 4500 Chassis Cab (2021) - CAUTION! - 2

natural_image Technical line drawing of a mechanical component with circular features and a pointer (no text or symbols)

Gear Selector Override Access Port

RAM 4500 Chassis Cab (2021) - CAUTION! - 3

natural_image Illustration of a hand using a tool to adjust or install a mechanical component (no text or symbols visible)

Engaging The Access Port

  1. Move the gear selector to the NEUTRAL position.
  2. The vehicle may then be started in NEUTRAL.

MANUAL PARK RELEASE — 8 — SPEED TRANSMISSION

WARNING!

Always secure your vehicle by fully applying the parking brake before activating the Manual Park Release. In addition, you should be seated in the driver's seat with your foot firmly on the brake pedal when activating the Manual Park Release. Activating the Manual Park Release will allow your vehicle to roll away if it is not secured by the parking brake, or by proper connection to a tow vehicle. Activating the Manual Park Release on an unsecured vehicle could lead to serious injury or death for those in or around the vehicle.

In order to move the vehicle in cases where the transmission will not shift out of PARK (P) (such as a depleted battery), a Manual Park Release is available.

Follow these steps to activate the Manual Park Release:

  1. Firmly apply the parking brake.
  2. Using a small screwdriver or similar tool, remove the Manual Park Release access cover, which is just above the parking brake release handle, below and to the left of the steering column.

RAM 4500 Chassis Cab (2021) - WARNING! - 1

natural_image Diagram showing a gray polygonal shape with an arrow pointing to it, no text or symbols present

Manual Park Release Cover

  1. Press and maintain firm pressure on the brake pedal.
  2. Using the screwdriver or similar tool, push the Manual Park Release lever locking tab (just below the middle of the lever) upwards.

RAM 4500 Chassis Cab (2021) - WARNING! - 2

natural_image Interior view of a vehicle showing a mechanical component with an arrow pointing to a specific area (no text or symbols visible)

Manual Park Release Pull Strap

  1. While holding the locking tab in the disengaged position, pull the tether strap to rotate the lever rearward, until it locks in place pointing towards the driver's seat. Release the locking tab and verify that the Manual Park Release lever is locked in the released position.
  2. The vehicle is now out of PARK and can be towed. Release the parking brake only when the vehicle is securely connected to a tow vehicle.

To Reset The Manual Park Release:

  1. Push the locking tab to the right, to unlock the lever.
  2. Rotate the Manual Park Release lever forward to its original position, until the locking tab snaps into place to secure the lever.
  3. Pull gently on the tether strap to confirm that the lever is locked in its stowed position.
  4. Re-install the access cover.

FREEING A STUCK VEHICLE

If your vehicle becomes stuck in mud, sand, or snow, it can often be moved using a rocking motion. Turn the steering wheel right and left to clear the area around the front wheels. Then shift back and forth between DRIVE (D) and REVERSE (R), while gently pressing the accelerator. Use the least amount of accelerator pedal pressure that will maintain the rocking motion, without spinning the wheels or racing the engine.

NOTE:

  • For trucks equipped with an 8-speed transmission, shifts between DRIVE and REVERSE can only be achieved at wheel speeds of 5 mph (8 km/h) or less. Whenever the transmission remains in NEUTRAL (N) for more than two seconds, you must press the brake pedal to engage DRIVE or REVERSE.
  • Push the ESC OFF switch, to place the Electronic Stability Control (ESC) system in "Partial Off" mode, before rocking the vehicle ↩ page 274. Once the vehicle has been freed, push the ESC OFF switch again to restore ESC On mode.

WARNING!

Fast spinning tires can be dangerous. Forces generated by excessive wheel speeds may cause damage, or even failure, of the axle and tires. A tire could explode and injure someone. Do not spin your vehicle's wheels faster than 30 mph (48 km/h) or for longer than 30 seconds continuously without stopping when you are stuck and do not let anyone near a spinning wheel, no matter what the speed.

CAUTION!

  • Racing the engine or spinning the wheels may lead to transmission overheating and failure. Allow the engine to idle with the transmission in NEUTRAL for at least one minute after every five rocking-motion cycles. This will minimize overheating and reduce the risk of transmission failure during prolonged efforts to free a stuck vehicle.
  • When “rocking” a stuck vehicle by shifting between DRIVE and REVERSE, do not spin the wheels faster than 15 mph (24 km/h), or drivetrain damage may result.
  • Revving the engine or spinning the wheels too fast may lead to transmission overheating and failure. It can also damage the tires. Do not spin the wheels above 30 mph (48 km/h) while in gear (no transmission shifting occurring).

TOWING A DISABLED VEHICLE

This section describes procedures for towing a disabled vehicle using a commercial towing service. If the transmission and drivetrain are operable, disabled vehicles may also be towed as described ➤ page 215.

Towing ConditionWheels OFF The Ground2WD Models 4WD Models
Flat Tow NONEIf transmission is operable:• Transmission in NEUTRAL• 30 mph (48 km/h) max speed• 15 miles (24 km) max distance (6-speed transmission)Detailed instructions page 215• Auto Transmission in PARK• Transfer Case in NEUTRAL• Tow in forward direction
Wheel Lift Or Dolly TowFront NOT ALLOWED30 miles (48 km) max distance (8-speed transmission)
Rear OK NOT ALLOWED
Flatbed ALL BEST METHOD BEST METHOD

Proper towing or lifting equipment is required to prevent damage to your vehicle. Use only tow bars and other equipment designed for this purpose, following equipment manufacturer's instructions. Use of safety chains is mandatory. Attach a tow bar or other towing device to main structural members of the vehicle, not to fascia/bumpers or associated brackets. State and local laws regarding vehicles under tow must be observed.

If you must use the accessories (wipers, defrosters, etc.) while being towed, the ignition must be in the ON/RUN mode, not the ACC mode.

If the key fob is unavailable or the vehicle's battery is discharged, ↩ page 348.

CAUTION!

  • Do not use sling type equipment when towing. Vehicle damage may occur.
  • When securing the vehicle to a flat bed truck, do not attach to front or rear suspension components. Damage to your vehicle may result from improper towing.

TWO-WHEEL DRIVE MODELS

FCA US LLC recommends towing your vehicle with all four wheels OFF the ground using a flatbed.

If flatbed equipment is not available, and the transmission is operable, the vehicle may be towed (with the rear wheels on the ground) under the following conditions:

  • The transmission must be in NEUTRAL page 348.
  • The towing speed must not exceed 30 mph (48 km/h).
  • The towing distance must not exceed 15 miles (24 km) for 6-speed transmission, or 30 miles (48 km) for 8-speed transmission.

If the transmission is not operable, or the vehicle must be towed faster than 30 mph (48 km/h) or farther than 15 miles (24 km) for 6-speed transmission, or 30 miles (48 km) for 8-speed transmission, tow with the rear wheels OFF the ground. Acceptable methods are to tow the vehicle on a flatbed, or with the front wheels raised and the rear wheels on a towing dolly, or (when using a suitable steering wheel stabilizer to hold the front wheels in the straight position) with rear wheels raised and the front wheels ON the ground.

CAUTION!

Towing this vehicle in violation of the above requirements can cause severe engine and/or transmission damage. Damage from improper towing is not covered under the New Vehicle Limited Warranty.

FOUR-WHEEL DRIVE MODELS

FCA US LLC recommends towing with all wheels OFF the ground. Acceptable methods are to tow the vehicle on a flatbed or with one end of vehicle raised and the opposite end on a towing dolly.

If flatbed equipment is not available, and the transfer case is operable, the vehicle may be towed (in the forward direction, with ALL wheels on the ground), IF the transfer case is in NEUTRAL and the transmission is in PARK page 215.

CAUTION!

  • Front or rear wheel lifts must not be used (if the remaining wheels are on the ground). Internal damage to the transmission or transfer case will occur if a front or rear wheel lift is used when towing.
  • Towing this vehicle in violation of the above requirements can cause severe transmission and/or transfer case damage. Damage from improper towing is not covered under the New Vehicle Limited Warranty.

EMERGENCY TOW HOOKS — IF EQUIPPED

Your vehicle may be equipped with emergency tow hooks.

RAM 4500 Chassis Cab (2021) - EMERGENCY TOW HOOKS — IF EQUIPPED - 1

text_image Emergency Tow Hooks A0717000060US

NOTE:

For off-road recovery, it is recommended to use both of the front tow hooks to minimize the risk of damage to the vehicle.

WARNING!

  • Do not use a chain for freeing a stuck vehicle. Chains may break, causing serious injury or death.
  • Stand clear of vehicles when pulling with tow hooks. Tow straps may become disengaged, causing serious injury.

CAUTION!

Tow hooks are for emergency use only, to rescue a vehicle stranded off-road. Do not use tow hooks for tow truck hookup or highway towing. You could damage your vehicle.

ENHANCED ACCIDENT RESPONSE SYSTEM (EARS)

This vehicle is equipped with an Enhanced Accident Response System.

This feature is a communication network that takes effect in the event of an impact ➤ page 310.

This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR is to record data that will assist in understanding how a vehicle's systems performed under certain crash or near crash-like situations, such as an air bag deployment or hitting a road obstacle page 311.

SERVICING AND MAINTENANCE

SCHEDULED SERVICING — GASOLINE ENGINE

Your vehicle is equipped with an automatic oil change indicator system. The oil change indicator system will remind you that it is time to take your vehicle in for scheduled maintenance.

Based on engine operation conditions, the oil change indicator message will illuminate. This means that service is required for your vehicle. Operating conditions such as frequent short-trips, trailer tow, extremely hot or cold ambient temperatures, and E85 fuel usage will influence when the "Oil Change Required" message is displayed. Have your vehicle serviced as soon as possible, within the next 500 miles (805 km).

An authorized dealer will reset the oil change indicator message after completing the scheduled oil change.

Under no circumstances should oil change intervals exceed 8,000 miles (13,000 km), 12 months or 350 hours of engine run time, whichever comes first. The 350 hours of engine run or idle time is generally only a concern for fleet customers.

Once A Month Or Before A Long Trip:

  • Check engine oil level.
  • Check windshield washer fluid level.
  • Check the tire inflation pressures and look for unusual wear or damage. Rotate at the first sign of irregular wear.
  • Check the fluid levels of the coolant reservoir, brake master cylinder, power steering and automatic transmission (six-speed only), and fill as needed.
  • Check function of all interior and exterior lights.

MAINTENANCE PLAN

Refer to the maintenance plan on the following pages for required maintenance. More frequent maintenance may be needed in severe conditions, such as dusty areas and very short trip driving. In some extreme conditions, additional maintenance not specified in the maintenance schedule may be required.

At Every Oil Change Interval As Indicated By Oil Change Indicator System:

  • Change oil and filter.
  • Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns on.
  • Inspect engine cooling system protection and hoses.

At Every Oil Change Interval As Indicated By Oil Change Indicator System:
- Inspect exhaust system.
- Inspect engine air cleaner filter if using in dusty or off-road conditions. Replace the engine air cleaner filter, if necessary.
- Inspect battery and clean and tighten terminals as required.
- Inspect the CV/Universal joints.
- Inspect automatic transmission fluid if equipped with dipstick.
- Inspect brake pads, shoes, rotors, drums, hoses and parking brake.

At Every Oil Change Interval As Indicated By Oil Change Indicator System:
- Inspect front end, and lubricate — If equipped with serviceable fittings.
- Inspect and replace the Evaporative System Fresh Air Filter as necessary, replacement may be more frequent if vehicle is operated in extreme dusty conditions.

NOTE:

Using white lithium grease, lubricate the door hinge pivot joints twice a year to prevent premature wear.

Mileage or time passed (whichever comes first)20,00030,00040,00050,00060,00070,00080,00090,000100,000110,000120,000130,000140,000150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:32,00048,00064,00080,00096,000112,000128,000144,000160,000176,000192,000208,000224,000240,000
Additional Inspections
Inspect the CV/Universal joints. X X X X X X X X X X X X
Inspect front suspension, tie rod ends, and replace if necessary. X X X X X X X
Inspect the front and rear axle surfaces. If gear oil leakage is suspected, check the fluid level. If using your vehicle for police, taxi, fleet, off-road or frequent trailer towing, change axle fluid.X X X X X X X
Inspect the brake linings, parking brake function. X X X X X X X
Additional Maintenance
Replace the cabin air filter. X X X X X X X
Replace the engine air cleaner filter. X X X X X
Replace spark plugs.1X
Flush and replace the engine coolant at 10 years or 150,000 miles (240,000 km) whichever comes first.XX
Change the automatic transmission fluid (AS66RC Transmission Only).X X X

356 SERVICING AND MAINTENANCE

Mileage or time passed (whichever comes first)20,00030,00040,00050,00060,00070,00080,00090,000100,000110,000120,000130,000140,000150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:32,00048,00064,00080,00096,000112,000128,000144,000160,000176,000192,000208,000224,000240,000
Change the automatic transmission fluid and sump filter (AS66RC Transmission Only).XX
Inspect the transfer case fluid, change for any of the following: police, taxi, fleet, or frequent trailer towing.XXXXX
Change the transfer case fluid. X
Inspect and replace PCV valve if necessary. X
  1. The spark plug change interval is mileage based only, yearly intervals do not apply.

WARNING!

- You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.

(Continued)

WARNING! (Continued)

- Failure to properly inspect and maintain your vehicle could result in a component malfunction and effect vehicle handling and performance. This could cause an accident.

SCHEDULED SERVICING — DIESEL ENGINE

CAUTION!

Failure to perform the required maintenance items may result in damage to the vehicle.

Required Maintenance Intervals

Refer to the maintenance plan on the following pages for the required maintenance intervals. More frequent maintenance may be needed in severe conditions, such as dusty areas and very short trip driving. In some extreme conditions, additional maintenance not specified in the maintenance schedule may be required.

At Each Stop For Fuel

Check the engine oil level at least 30 minutes after a fully warmed engine is shut off. Checking the oil level while the vehicle is on level ground will improve the accuracy of the oil level reading. Add oil only when the level is at or below the ADD or MIN mark.

Once A Month

  • Inspect the batteries, and clean and tighten the terminals as required.
  • Check the fluid levels of the coolant reservoir, brake master cylinder, and automatic transmission, and add as needed.

At Each Oil Change

  • Change the engine oil filter.
  • Inspect the exhaust system.
  • Inspect engine air cleaner filter. Replace the engine air cleaner filter, if necessary.

- Inspect the CV/Universal joints.

- Check the coolant level, hoses, and clamps.

- Inspect front end, and lubricate — If equipped with serviceable fittings.

- Inspect and replace the Evaporative System Fresh Air Filter as necessary, replacement may be more frequent if vehicle is operated in extreme dusty conditions.

Inspection and service should also be performed anytime a malfunction is observed or suspected. Retain all receipts.

NOTE:

Using white lithium grease, lubricate the door hinge pivot joints twice a year to prevent premature wear.

OIL CHANGE INDICATOR SYSTEM — CUMMINS DIESEL

Your vehicle is equipped with an engine oil change indicator system. This system will alert you when it is time to change your engine oil by displaying the words “Oil Change Due” in your instrument cluster display. The oil change reminder will remind the owner to change the engine oil every 15,000 miles (24,000 km) or 500 hours, whichever comes first, except for the Chassis Cab models configured with optional B20 capability that are using greater than 5% levels of biodiesel, which are 12,500 miles (20,000 km) or 400 hours, whichever comes first. Failure to change the engine oil per the maintenance schedule can result in internal engine damage.

An authorized dealer will reset the oil change indicator message after completing the scheduled oil change. If a scheduled oil change is performed by someone other than an authorized dealer ➤ page 90.

Replace the engine oil and oil filter every 15,000 miles (24,000 km) or 12 months, or sooner if prompted by the oil change indicator system. Under no circumstances should oil change intervals exceed 15,000 miles (24,000 km) or 12 months, whichever comes first.

NOTE:

- Under no circumstances should oil change intervals exceed 15,000 miles (24,000 km) or 12 months or 500 Hours, whichever comes first.

- Replace the engine oil and oil filter every 12,500 miles (20,000 km) or 400 hours, whichever comes first when running greater than 5% levels of biodiesel (Chassis Cab models configured with optional B20 capability).

If Chassis Cab models configured with optional B20 capability are operated with greater than 5% levels of biodiesel, the oil change interval must not exceed 12,500 miles (20,000 km) or 400 hours, whichever comes first under any circumstances. See the Fuel Requirements section for more information regarding operation with biodiesel blend (B6-B20) fuel meeting ASTM specification D-7467.

PERFORM SERVICE INDICATOR — CUMMINS DIESEL

Your vehicle will require emissions maintenance at a set interval. To help remind you when this maintenance is due, the instrument cluster will display "Perform Service". When the "Perform Service" message is displayed on the instrument cluster it is necessary to have the emissions maintenance performed. Emissions maintenance may include replacing the Closed Crankcase Ventilation (CCV) filter element. The procedure for clearing and resetting the "Perform Service" indicator message is located in the appropriate Service Information.

MAINTENANCE PLAN — CUMMINS DIESEL ENGINE

Mileage or time passed (whichever comes first):7,50015,00022,50030,00037,50045,00052,50060,00067,50075,00082,50090,00097,500105,000112,500120,000127,500135,000142,500150,000
Or Months: 6 12 1824 303642 48 5460 66 7278 84 9096 102 1008 114120
Or Kilometers:12,00024,00036,00048,00060,00072,00084,00096,000108,000120,000132,000144,000156,000168,000180,000192,000204,000216,000228,000240,000
Change engine oil every 15,000 miles (24,000 km) or 12 months or 500 hours or sooner if prompted by the oil change indicator system, whichever comes first.1XXXXXXXXXXX
Additional Inspections
Check the Diesel Exhaust Fluid (DEF) tank, refill if necessary.XXXXXXXXXXXXXXXXXXXX
Rotate the tires.XXXXXXXXXXXXXXXXXXXX
Inspect the CV/Universal joints.XXXXXXXXXXXXXXXXXXXXX
Inspect front end, and lubricate - If equipped with serviceable fittings.XXXXXXXXXXXXXXXXXXXX

360 SERVICING AND MAINTENANCE

Mileage or time passed (whichever comes first):7,50015,00022,50030,00037,50045,00052,50060,00067,50075,00082,50090,00097,500105,000112,500120,000127,500135,000142,500150,000
Or Months:6121824303642485460667278849096102108114120
Or Kilometers:12,00024,00036,00048,00060,00072,00084,00096,000108,000120,000132,000144,000156,000168,000180,000192,000204,000216,000228,000240,000
Inspect engine air cleaner filter, replace if necessary.2XXXXXXXXXX
Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for damage, wear, improper looseness or end play; replace if necessary.XXXXXXXXXX
Inspect the brake linings. XXXX
Inspect and adjust parking brake.XXXXXX
Inspect drive belt; replace as necessary.XXXXXX
Inspect wheel bearings. XXXX
Additional Maintenance
Replace the cabin air filter. XXXXXX
Or Months: 6 12 1824 303642 485460 667278 849096 102108 114120
Or Kilometers:12,00024,00036,00048,00060,00072,00084,00096,000108,000120,000132,000144,000156,000168,000180,000192,000204,000216,000228,000240,000
Replace the engine fuel filter. XX X XX X XX X X
Replace the chassis mounted fuel filter.X XX X XX X XX X
Inspect the front and rear axle surfaces. If gear oil leakage is suspected, check the fluid level. If using your vehicle for police, taxi, fleet, off-road or frequent trailer towing change the axle fluid.3
Inspect the transfer case fluid (4x4), change for any of the following: police, taxi, fleet, or frequent trailer towing.X XX X X
Change the transfer case fluid (4x4).XX

362 SERVICING AND MAINTENANCE

Mileage or time passed (whichever comes first):7,50015,00022,50030,00037,50045,00052,50060,00067,50075,00082,50090,00097,500105,000112,500120,000127,500135,000142,500150,000
Or Months: 6 12 1824 303642 485460667278849096102108114120
Or Kilometers:12,00024,00036,00048,00060,00072,00084,00096,000108,000120,000132,000144,000156,000168,000180,000192,000204,000216,000228,000240,000
Change automatic transmission fluid (AS69RC transmission only).XXXXX
Change the automatic transmission fluid and sump filter (AS69RC transmission only).XX
Change automatic transmission fluid and filter(s) (AS69RC transmission only).X
Replace Crankcase Ventilation Filter (CCV).XX
Flush and replace power steering fluid.X
Or Months: 6 12 1824 3036 4248 5460 6672 7884 9096 102108 114120
Or Kilometers:12,00024,00036,00048,00060,00072,00084,00096,000108,000120,000132,000144,000156,000168,000180,000192,000204,000216,000228,000240,000
Flush and replace engine coolant. ***X
  1. Under no circumstances should oil change intervals exceed 15,000 miles (24,000 km) or 12 months or 500 Hours, whichever comes first.
  2. Under no circumstances should the engine air cleaner filter exceed 30,000 miles (48,000 km) or 24 months, whichever comes first.
  3. Inspect the front and rear axle surfaces every 20,000 miles (32,000 km). If gear oil leakage is suspected, check the fluid level. If using your vehicle for police, taxi, fleet, off-road or frequent trailer towing change the axle fluid every 20,000 miles (32,000 km).

Inspection and service should also be performed anytime a malfunction is observed or suspected. Retain all receipts.

WARNING!

- You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment. If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.

(Continued)

WARNING! (Continued)

- Failure to properly inspect and maintain your vehicle could result in a component malfunction and effect vehicle handling and performance. This could cause an accident.

CAUTION!

***The manufacturer highly recommends that all cooling system service, maintenance, and repairs be performed by an authorized dealer.

ENGINE COMPARTMENT

6.4L ENGINE

RAM 4500 Chassis Cab (2021) - 6.4L ENGINE - 1

text_image Technical diagram of a car engine bay with numbered components for identification

1 – Engine Coolant Pressure Cap 6 – Battery
2 — Engine Coolant Pressure Reservoir 7 — Engine Air Cleaner Filter
3 — Engine Oil Fill 8 — Power Steering Reservoir Cap
4 — Engine Oil Dipstick 9 — Power Distribution Center (Fuses)
5 – Brake Fluid Reservoir Cap 10 – Washer Fluid Reservoir Cap

6.7L ENGINE

RAM 4500 Chassis Cab (2021) - 6.7L ENGINE - 1

text_image Labeled diagram of a car engine bay with numbered components for identification

1 – Battery 7 – Brake Fluid Reservoir Cap
2 – Engine Coolant Pressure Cap 8 – Battery
3 — Engine Coolant Pressure Reservoir 9 — Power Distribution Center (Fuses)
4 — Engine Oil Fill 10 — Washer Fluid Reservoir Cap
5 — Engine Oil Dipstick 11 — Power Steering Reservoir Cap
6 — Automatic Transmission Dipstick 12 — Engine Air Cleaner Filter

CHECKING OIL LEVEL

To ensure proper engine lubrication, the engine oil must be maintained at the correct level. Check the oil level at regular intervals, such as every fuel stop. The best time to check the engine oil level is about five minutes after a fully warmed up engine is shut off.

Checking the oil while the vehicle is on level ground will improve the accuracy of the oil level readings.

There are four possible dipstick types:

  • Crosshatched zone.
    • Crosshatched zone marked SAFE.
  • Crosshatched zone marked with MIN at the low end of the range and MAX at the high end of the range.
  • Crosshatched zone marked with dimples at the MIN and the MAX ends of the range.

NOTE:

Always maintain the oil level within the cross-hatch markings on the dipstick.

Adding 1 quart (1 liter) of oil when the reading is at the low end of the dipstick range will raise the oil level to the high end of the range marking.

CAUTION!

Overfilling or underfilling the crankcase will cause oil aeration or loss of oil pressure. This could damage your engine.

ADDING WASHER FLUID

The fluid reservoir is located under the hood and should be checked for fluid level at regular intervals. Fill the reservoir with windshield washer solvent only (not radiator antifreeze). When refilling the washer fluid reservoir, take some washer fluid and apply it to a cloth or towel and wipe the wiper blades clean. This will help blade performance.

To prevent freeze-up of your windshield washer system in cold weather, select a solution or mixture that meets or exceeds the temperature range of your climate. This rating information can be found on most washer fluid containers.

WARNING!

Commercially available windshield washer solvents are flammable. They could ignite and burn you. Care must be exercised when filling or working around the washer solution.

After the engine has warmed up, operate the defroster for a few minutes to reduce the possibility of smearing or freezing the fluid on the cold windshield. Windshield washer solution used with water as directed on the container, aids cleaning action, reduces the freezing point to avoid line clogging, and is not harmful to paint or trim.

MAINTENANCE-FREE BATTERY

Your vehicle is equipped with a maintenance-free battery. You will never have to add water, and periodic maintenance is not required.

NOTE:

Replacement batteries should both be of equal capacity to prevent damage to the vehicle's charging system.

WARNING!

  • Battery fluid is a corrosive acid solution and can burn or even blind you. Do not allow battery fluid to contact your eyes, skin, or clothing. Do not lean over a battery when attaching clamps. If acid splashes in eyes or on skin, flush the area immediately with large amounts of water ➕ page 345.
  • Battery gas is flammable and explosive. Keep flame or sparks away from the battery. Do not use a booster battery or any other booster source with an output greater than 12 Volts. Do not allow cable clamps to touch each other.
  • Battery posts, terminals, and related accessories contain lead and lead compounds. Wash hands after handling.

CAUTION!

  • It is essential when replacing the cables on the battery that the positive cable is attached to the positive post and the negative cable is attached to the negative post. Battery posts are marked positive (+) and negative (-) and are identified on the battery case. Cable clamps should be tight on the terminal posts and free of corrosion.
  • If a "fast charger" is used while the battery is in the vehicle, disconnect both vehicle battery cables before connecting the charger to the battery. Do not use a "fast charger" to provide starting voltage.

PRESSURE WASHING

Cleaning the engine compartment with a high pressure washer is not recommended.

CAUTION!

Precautions have been taken to safeguard all parts and connections however, the pressures generated by these machines is such that complete protection against water ingress cannot be guaranteed.

VEHICLE MAINTENANCE

An authorized dealer has the qualified service personnel, special tools, and equipment to perform all service operations in an expert manner. Service Manuals are available which include detailed service information for your vehicle. Refer to these Service Manuals before attempting any procedure yourself.

NOTE:

Intentional tampering with emissions control systems may void your warranty and could result in civil penalties being assessed against you.

WARNING!

You can be badly injured working on or around a motor vehicle. Only do service work for which you have the knowledge and the proper equipment. If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.

ENGINE OIL

Engine Oil Selection — Gasoline Engine

For best performance and maximum protection under all types of operating conditions, the manufacturer only recommends engine oils that are API Certified and meet the requirements of FCA Material Standard MS-12633.

NOTE:

Hemi engines (6.4L) at times can tick right after startup and then quiet down after approximately 30 seconds. This is normal and will not harm the engine. This characteristic can be caused by short drive cycles. For example, if the vehicle is started then shut off after driving a short distance. Upon restarting, you may experience a ticking sound. Other causes could be if the vehicle is unused for an extended period of time, incorrect oil, extended oil changes or extended idling. If the engine continues to tick or if the Malfunction Indicator Light (MIL) comes on, see the nearest authorized dealer.

Engine Oil Selection — Diesel Engine

For best performance and maximum protection under all types of operating conditions, the manufacturer only recommends engine oils that are API CK-4 certified and meet the requirements of FCA US LLC. Use Mopar or an equivalent oil meeting FCA Material Standard MS-10902. Products meeting Cummins CES 20081 may also be used. The identification of these engine oils are typically located on the back of the oil container.

American Petroleum Institute (API) Engine Oil Identification Symbol

RAM 4500 Chassis Cab (2021) - American Petroleum Institute (API) Engine Oil Identification Symbol - 1

This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils.

This symbol certifies 0W-20, 5W-20, 0W-30, 5W-30 and 10W-30 engine oils.

For diesel engines, oils with a high ash content may produce damaging deposits on cylinder head valves and/or after-treatment system damage. A maximum sulfated ash content of 1.00 mass % is recommended for all oil used in the engine.

The same oil change interval is to be followed for synthetic oil as for petroleum-based oil. Also, synthetic oil must meet the same performance specifications as petroleum oil.

CAUTION!

Do not use chemical flushes in your engine oil as the chemicals can damage your engine. Such damage is not covered by the New Vehicle Limited Warranty.

Synthetic Engine Oils

You may use synthetic engine oils provided the recommended oil quality requirements are met, and the recommended maintenance intervals for oil and filter changes are followed.

Synthetic engine oils which do not have both the engine oil certification mark and the correct SAE viscosity grade number should not be used.

Materials Added To Engine Oil

The manufacturer strongly recommends against the addition of any additives (other than leak detection dyes) to the engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives.

Disposing Of Used Engine Oil And Oil Filters

Care should be taken in disposing of used engine oil and oil filters from your vehicle. Used oil and oil filters, indiscriminately discarded, can present a problem to the environment. Contact an authorized dealer, service station or governmental agency for advice on how and where used oil and oil filters can be safely discarded in your area.

ENGINE OIL FILTER

The engine oil filter should be replaced with a new filter at every engine oil change.

Engine Oil Filter Selection

A full-flow type disposable oil filter should be used for replacement. The quality of replacement filters varies considerably. Only high quality Mopar certified filters should be used.

ENGINE AIR CLEANER FILTER

For the proper maintenance intervals → page 354.

NOTE:

Be sure to follow the “Severe Duty Conditions” maintenance interval if applicable.

WARNING!

The air induction system (air cleaner, hoses, etc.) can provide a measure of protection in the case of engine backfire. Do not remove the air induction system (air cleaner, hoses, etc.) unless such removal is necessary for repair or maintenance. Make sure that no one is near the engine compartment before starting the vehicle with the air induction system (air cleaner, hoses, etc.) removed. Failure to do so can result in serious personal injury.

Engine Air Cleaner Filter Selection

The quality of replacement engine air cleaner filters varies considerably. Only high quality filters should be used to ensure most efficient service. Mopar engine air cleaner filters are a high quality filter and are recommended.

Engine Air Cleaner Filter Inspection And Replacement — Gasoline Engine

Inspect engine air cleaner filter for dirt and or debris, if you find evidence of either dirt or debris you should change your engine air cleaner filter.

NOTE:

When replacing the engine air cleaner filter on vehicles equipped with a 6.4L gasoline engine, replace with a dry (non-oiled) filter only.

370 SERVICING AND MAINTENANCE

Engine Air Cleaner Filter Removal

  1. With suitable tool fully loosen (six) fasteners on engine air cleaner filter.

RAM 4500 Chassis Cab (2021) - Engine Air Cleaner Filter Removal - 1

text_image Technical diagram of a mechanical component with numbered parts and assembly line A0804000239US

Engine Air Cleaner Filter

1 - Fasteners
2-Air Hose Clamp
3 — Engine Air Cleaner Filter Cover

  1. Lift the engine air cleaner filter cover to access the engine air cleaner filter.
  2. Remove the engine air cleaner filter from the housing assembly.

RAM 4500 Chassis Cab (2021) - Engine Air Cleaner Filter Removal - 2

text_image Technical diagram of an automotive air conditioner unit with numbered components and assembly details

Engine Air Cleaner Filter Assembly

1 – Engine Air Cleaner Filter Cover
2 – Engine Air Cleaner Filter

Engine Air Cleaner Filter Installation

NOTE:

Inspect and clean the housing if dirt or debris is present before replacing the engine air cleaner filter.

  1. Install the engine air cleaner filter into the housing assembly with the engine air cleaner filter inspection surface facing downward.
  2. Install the engine air cleaner filter cover onto the housing assembly.

  3. Tighten the fasteners (six) on the engine air cleaner filter assembly.

Engine Air Cleaner Filter Inspection and Replacement — Diesel Engine

Inspect engine air cleaner filter for dirt and or debris, if you find evidence of either dirt or debris you should change your engine air cleaner filter.

Engine Air Cleaner Filter Removal

  1. Remove the screws from the engine air cleaner filter cover.

RAM 4500 Chassis Cab (2021) - Engine Air Cleaner Filter Removal - 1

text_image 1 2 A0804000240US

Engine Air Cleaner Filter Cover

1 – Engine Air Cleaner Filter Cover
2 - Screws

  1. Lift the engine air cleaner filter cover to access the engine air cleaner filter.
  2. Remove the engine air cleaner filter from the housing assembly.

RAM 4500 Chassis Cab (2021) - Engine Air Cleaner Filter Removal - 2

natural_image Technical diagram of a mechanical component with labeled parts (1, 2), no readable text or symbols beyond labels

Engine Air Cleaner Filter

1 – Engine Air Cleaner Filter
2 — Engine Air Cleaner Filter Inspection Surface

Engine Air Cleaner Filter Installation

NOTE:

Inspect and clean the housing if dirt or debris is present before replacing the engine air cleaner filter.

  1. Install the engine air cleaner filter into the housing assembly with the engine air cleaner filter inspection surface facing downward.
  2. Install the engine air cleaner filter cover onto the housing assembly locating tabs.
  3. Install screws to secure the engine air cleaner filter cover to the housing assembly.

AIR CONDITIONER MAINTENANCE

For best possible performance, your air conditioner should be checked and serviced by an authorized dealer at the start of each warm season. This service should include cleaning of the condenser fins and a performance test. Drive belt tension should also be checked at this time.

WARNING!

  • Use only refrigerants and compressor lubricants approved by the manufacturer for your air conditioning system. Some unapproved refrigerants are flammable and can explode, injuring you. Other unapproved refrigerants or lubricants can cause the system to fail, requiring costly repairs. Refer to Warranty Information Book, for further warranty information.
  • The air conditioning system contains refrigerant under high pressure. To avoid risk of personal injury or damage to the system, adding refrigerant or any repair requiring lines to be disconnected should be done by an experienced technician.

CAUTION!

Do not use chemical flushes in your air conditioning system as the chemicals can damage your air conditioning components. Such damage is not covered by the New Vehicle Limited Warranty.

Refrigerant Recovery And Recycling R-134a — If Equipped

R-134a Air Conditioning Refrigerant is a hydrofluorocarbon (HFC) that is an ozone-friendly substance. The manufacturer recommends that air conditioning service be performed by an authorized dealer or other service facilities using recovery and recycling equipment.

NOTE:

Use only manufacturer approved A/C system PAG compressor oil and refrigerants.

Refrigerant Recovery And Recycling R-1234yf — If Equipped

R-1234yf Air Conditioning Refrigerant is a hydrofluoroolefin (HFO) that is endorsed by the Environmental Protection Agency and is an ozone-friendly substance with a low global-warming potential. The manufacturer recommends that air conditioning service be performed by an authorized dealer using recovery and recycling equipment.

NOTE:

Use only manufacturer approved A/C system PAG compressor oil, and refrigerants.

Cabin Air Filter Replacement

For the proper maintenance intervals page 354.

WARNING!

Do not remove the cabin air filter while the vehicle is running, or while the ignition is in the ACC or ON/RUN mode. With the cabin air filter removed and the blower operating, the blower can contact hands and may propel dirt and debris into your eyes, resulting in personal injury.

The cabin air filter is located in the fresh air inlet behind the glove compartment. Perform the following procedure to replace the filter:

  1. Open the glove compartment and remove all contents.

  2. With the glove compartment door open, remove the glove compartment tension tether and tether clip by sliding the clip toward the face of the glove compartment door. Lift the clip out of glove compartment door and release into dash panel.

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text_image Technical diagram of a vehicle interior showing labeled parts with numbers 1 and 2, likely for assembly or maintenance instructions.

Right Side Of Glove Compartment

1 - Glove Compartment Door
2 — Glove Compartment Tension Tether

  1. There are travel stops on both sides of the glove compartment. Push inward on right side of the glove compartment travel stop to disengage the stop. Then pull the right of the glove compartment outward (away from the hinge) to disengaging the right side of the compartment from the hinge. Continue by removing the left side from the hinge by slightly lowering the compartment while pulling outward until it is completely disengaged from the hinge.

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text_image Technical diagram of a vehicle rear panel with numbered components and assembly details

Glove Compartment

1 — Glove Compartment Travel Stop
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door

  1. Remove the filter cover by pushing in on the finger tabs on each end of the filter cover.

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natural_image Mechanical assembly diagram showing a component with an arrow pointing to a central component (no text or symbols present)

Filter Cover

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text_image A0804000224US

Filter Cover Removal

1 - Finger Tabs

  1. Remove the cabin air filter by pulling it straight out of the housing.

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natural_image Diagram of a mechanical assembly with a highlighted component and an arrow indicating direction (no text or symbols present)

Cabin Air Filter

  1. Install the cabin air filter with the arrow on the filter pointing toward the floor. When installing the filter cover, press on each end until you hear an audible click.

CAUTION!

The cabin air filter is identified with an arrow to indicate airflow direction through the filter. Failure to properly install the filter will result in the need to replace it more often.

  1. Reinstall the glove compartment on the hinges.

374 SERVICING AND MAINTENANCE

  1. Pull the tension tether outward and reinstall the glove compartment past the travel stops by pushing in on the glove compartment sides.

RAM 4500 Chassis Cab (2021) - SERVICING AND MAINTENANCE - 1

text_image A0804000221US

Glove Compartment

1 – Glove Compartment Travel Stop
2 — Glove Compartment Tension Tether
3 — Glove Compartment Door

NOTE:

Ensure the glove compartment door hinges and glove compartment travel stops are fully engaged.
9. Reattach the glove compartment tension tether by inserting the tether clip in the glove compartment and sliding the clip away from the face of the glove compartment door.

ACCESSORY DRIVE BELT INSPECTION

WARNING!

  • Do not attempt to inspect an accessory drive belt with vehicle running.
  • When working near the radiator cooling fan, disconnect the fan motor lead. The fan is temperature controlled and can start at any time regardless of ignition mode. You could be injured by the moving fan blades.
  • You can be badly injured working on or around a motor vehicle. Only do service work for which you have the knowledge and the proper equipment. If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.

When inspecting accessory drive belts, small cracks that run across ribbed surface of belt from rib to rib, are considered normal. These are not a reason to replace belt. However, cracks running along a rib (not across) are not normal. Any belt with cracks running along a rib must be replaced. Also have the belt replaced if it has excessive wear, frayed cords or severe glazing.

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natural_image Diagram showing a mechanical component with an arrow indicating direction, no readable text or symbols present.

Accessory Belt (Serpentine Belt)

Conditions that would require replacement:

  • Rib chunking (one or more ribs has separated from belt body)
  • Rib or belt wear
  • Longitudinal belt cracking (cracks between two ribs)
  • Belt slips
  • "Groove jumping" (belt does not maintain correct position on pulley)
  • Belt broken (note: identify and correct problem before new belt is installed)
  • Noise (objectionable squeal, squeak, or rumble is heard or felt while drive belt is in operation)

Some conditions can be caused by a faulty component such as a belt pulley. Belt pulleys should be carefully inspected for damage and proper alignment.

Belt replacement on some models requires the use of special tools, we recommend having your vehicle serviced at an authorized dealer.

DRAINING FUEL/WATER SEPARATOR FILTER

There are two fuel filter assemblies. One is located on the driver's side of the engine.

The best access to this water drain valve is from under the hood. The second one is on the under body, located in front of the rear axle above the drive shaft on pick-up models. The Chassis Cab models second filter location is on the frame behind the front axle. The best access to this water drain valve is from under the vehicle.

CAUTION!

  • Do not drain the fuel/water separator filter when the engine is running.
  • Diesel fuel will damage blacktop paving surfaces. Drain the filter into an appropriate container.

If water is detected in the water separator while the engine is running, or while the ignition switch is in the ON position, the "Water In Fuel Indicator Light" will illuminate and an audible chime will be heard five times. At this point you should stop the engine and drain the water from both of the filters.

CAUTION!

If the "Water In Fuel Indicator Light" remains on, DO NOT START the engine before you drain water from the fuel filters to avoid engine damage.

If the "Water In Fuel Indicator Light" comes on and a single chime is heard while you are driving, or with the ignition switch in the ON position, there may be a problem with your water separator wiring or sensor. See an authorized dealer for service.

Upon proper draining of the water from both fuel filters, the "Water In Fuel Indicator Light" will remain illuminated for approximately 10 seconds. If the water was drained while the engine was running, the "Water In Fuel Indicator Light" may remain on for approximately three minutes.

NOTE:

Care should be taken in disposing of used fluids from your vehicle. Used fluids, indiscriminately discarded, can present a problem to the environment. Contact an authorized dealer, service station, or government agency for advice on recycling programs and for where used fluids and filters can be properly disposed of in your area.

Drain the fuel/water separator filters when the "Water In Fuel Indicator Light" is ON. Within 10 minutes of vehicle shutdown, turn the engine mounted filter drain valve (located on the side of the filter assembly) counterclockwise a quarter turn, and turn the under body mounted filter drain valve (located on the bottom of the filter assembly) counterclockwise 1 full turn. Then turn the ignition switch to the ON position, and allow any accumulated water to drain. Leave the drain valve open until all water and contaminants have been removed. When clean fuel is visible, close the drain valve following these guidelines:

  1. Rotate the drain clockwise to close until you feel resistance from the internal seal.
  2. Continue turning the drain half of a turn to properly compress the seal.

NOTE:

Over-compression of the seal due to over-tightening of the drain will damage the seal, cause a leak, and require the entire sensor to be replaced.

  1. Turn the ignition switch to OFF.

The sensor drain should not be over-tightened during normal service operations to avoid internal damage and future fuel leaks. The drain should be closed and secured without the use of tools.

If more than a couple ounces/milliliters of fuel have been drained, follow the directions for "Priming If The Engine Has Run Out Of Fuel" page 378

ENGINE MOUNTED FUEL FILTER REPLACEMENT

NOTE:

- Using a fuel filter that does not meet the manufacturer's filtration and water separating requirements can severely impact fuel system life and reliability.

- The engine mounted filter housing is equipped with a No-Filter-No-Run (NFNR) feature. Engine will not run if:

a. No filter is installed.

b. Inferior/Non-approved filter is used. Use of OEM filter is required to ensure vehicle will run.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image Engine Mounted Fuel Filter Assembly A0804000237U5

1 – Drain Valve

CAUTION!

  • Diesel fuel will damage blacktop paving surfaces. Drain the filter into an appropriate container.
  • Do not prefill the fuel filter when installing a new fuel filter. There is a possibility debris could be introduced into the fuel filter during this action. It is best to install the filter dry and allow the in-tank lift pump to prime the fuel system.

  • Ensure engine is turned off.

  • Place drain pan under the fuel filter drain hose.
  • Open the water drain valve a quarter turn counterclockwise and completely drain fuel and water into the approved container.
  • Close the water drain valve.
  • Remove lid using a socket or strap wrench. Rotate counterclockwise for removal. Remove used o-ring and discard it.

  • Remove the used filter cartridge from the housing and dispose of according to your local regulations.

  • Wipe clean the sealing surfaces of the lid and housing.
  • Install new o-ring back into ring groove on the filter housing and lubricate with clean engine oil.
  • Remove new filter cartridge from plastic bag and install into housing.

NOTE:

Do not remove cartridge from bag until you reach this step in order to keep cartridge clean.

  1. Push down on the cartridge to ensure it is properly seated. Do not pre-fill the filter housing with fuel.
  2. Install lid onto housing and tighten to 22.5 ft lbs (30.5 N.m). Do not overtighten the lid.
  3. Prime the engine ▷ page 378. Then start the engine and confirm there are no leaks.

UNDERBODY MOUNTED FUEL FILTER REPLACEMENT

NOTE:

  • Using a fuel filter that does not meet the manufacturer's filtration and water separating requirements can severely impact fuel system life and reliability.
  • The underbody mounted filter housing will cause the engine not to run if:

a. No filter is installed.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Mechanical component diagram showing a cylindrical tank with internal components and a pipe (no text or symbols)

A0804000244US

Underbody Mounted Fuel Filter Assembly

1 – Drain Valve

CAUTION!

  • Diesel fuel will damage blacktop paving surfaces. Drain the filter into an appropriate container.
  • Do not prefill the fuel filter when installing a new fuel filter. There is a possibility debris could be introduced into the fuel filter during this action. It is best to install the filter dry and allow the in-tank lift pump to prime the fuel system.

  • Ensure engine is turned off.

  • Place drain pan under the fuel filter drain hose.
  • Open the water drain valve one full turn counterclockwise and completely drain fuel and water into the approved container.
  • Close the water drain valve.
  • Remove lid using a socket or strap wrench. Rotate counterclockwise for removal. Remove used o-ring and discard it.
  • Remove the used filter cartridge from the housing and dispose of according to your local regulations.

378 SERVICING AND MAINTENANCE

  1. Wipe clean the sealing surfaces of the lid and housing.
  2. Install new o-ring back into ring groove on the filter housing and lubricate with clean engine oil.

NOTE:

Water In Fuel (WIF) sensor is re-usable. Service kit comes with new o-ring for filter canister and WIF sensor.

PRIMING IF THE ENGINE HAS RUN OUT OF FUEL

WARNING!

Do not open the high pressure fuel system with the engine running. Engine operation causes high fuel pressure. High pressure fuel spray can cause serious injury or death.

  1. Add a substantial amount of fuel to the tank, approximately 2 to 5 gal (8L to 19L).

  2. Three priming cycles must be completed. Turn ignition to the RUN position and wait approximately 30 seconds. This will activate the in tank fuel pump. Turn the ignition switch to the off position, and leave off for at least 30 seconds. Repeat this procedure three times before cranking the engine.

  3. Start the engine using the "Normal Starting" procedure ➤ page 119.
  4. Once the engine starts, allow the engine to idle for a minimum of 30 seconds.

CAUTION!

Do not engage the starter motor for more than 15 seconds at a time. Allow two minutes between the cranking intervals.

NOTE:

The engine may run rough until the air is forced from all the fuel lines.

WARNING!

Do not use alcohol or gasoline as a fuel blending agent. They can be unstable under certain conditions and be hazardous or explosive when mixed with diesel fuel.

CAUTION!

Due to lack of lubricants in alcohol or gasoline, the use of these fuels can cause damage to the fuel system.

NOTE:

  • A maximum blend of 5% biodiesel, meeting ASTM specification D-975 may be used with your Cummins diesel engine. (Chassis Cab models not configured with B20 capability.)
  • A maximum blend of 20% biodiesel, meeting ASTM specification D-7467 may be used with your Cummins diesel engine. (Pickup models and Chassis Cab models configured with B20 capability.)

  • Use of biodiesel mixture in excess of 20% can negatively impact the fuel filter's ability to separate water from the fuel, resulting in high pressure fuel system corrosion or damage.

  • Ethanol blends are not recommended or approved for use with your Cummins diesel engine.
  • In addition, commercially available fuel additives are not necessary for the proper operation of your Cummins diesel engine.

INTERVENTION REGENERATION STRATEGY — MESSAGE PROCESS FLOW

The Cummins diesel engine meets all Environmental Protection Agency (EPA) Heavy Duty Diesel Engine Emissions Standards, resulting in one of the lowest emitting diesel engines ever produced.

To achieve these emissions standards, your vehicle is equipped with a state-of-the-art engine and exhaust system. The engine and exhaust after-treatment system work together to achieve the EPA Heavy Duty Diesel Engine Emissions Standards. These systems are seamlessly integrated into your vehicle and managed by the Cummins Powertrain Control Module (PCM). The PCM manages engine combustion to allow the exhaust system's catalyst to trap and burn Particulate Matter (PM) pollutants, with no input or interaction on your part.

If the engine is allowed to idle or the truck is driven on low engine speed drive cycles for more than two hours, the system will automatically enter an emissions operating mode that will increase the engine idle speed to 900 RPM (1,050 RPM for Chassis Cab). While in this mode, which is designed to help maintain the Diesel Particulate Filter, the engine idle speed will return to normal when the brake pedal is applied. A small change in engine tone or a slight change in engine performance while accelerating may also be noticeable at speeds below 20 mph (32 km/h). This operating mode may last for up to an hour of idle time, or around 20 minutes of driving time.

Additionally, your vehicle has the ability to alert you to additional maintenance required on your truck or engine ➕ page 90.

WARNING!

A hot exhaust system can start a fire if you park over materials that can burn. Such materials might be grass or leaves coming into contact with your exhaust system. Do not park or operate your vehicle in areas where your exhaust system can contact anything that can burn.

DIESEL EXHAUST FLUID

Diesel Exhaust Fluid (DEF) sometimes known simply by the name of its active component, UREA—is a key component of Selective Catalytic Reduction (SCR) systems, which help diesel vehicles meet stringent emission regulations. DEF is a liquid reducing agent that reacts with engine exhaust in the presence of a catalyst to convert smog-forming nitrogen oxides (NOx) into harmless nitrogen and water vapor ➤ page 440.

You can receive assistance in locating DEF in the United States by calling 866-RAM-INFO (866-726-4636). In Canada call 1-800-465-2001 (English) or 1-800-387-9983 (French)

BODY LUBRICATION

Locks and all body pivot points, including such items as seat tracks, door hinge pivot points and rollers, liftgate, tailgate, decklid, sliding doors and hood hinges, should be lubricated periodically with a lithium-based grease, such as Mopar Spray White Lube to ensure quiet, easy operation and to protect against rust and wear. Prior to the application of any lubricant, the parts concerned should be wiped clean to remove dust and grit; after lubricating excess, oil and grease should be removed. Particular attention should also be given to hood latching components to ensure proper function. When performing other underhood services, the hood latch, release mechanism and safety catch should be cleaned and lubricated.

The external lock cylinders should be lubricated twice a year, preferably in the Autumn and Spring. Apply a small amount of a high quality lubricant, such as Mopar Lock Cylinder Lubricant directly into the lock cylinder.

WINDSHIELD WIPER BLADES

Clean the rubber edges of the wiper blades and the windshield periodically with a sponge or soft cloth and a mild nonabrasive cleaner. This will remove accumulations of salt or road film.

Operation of the wipers on dry glass for long periods may cause deterioration of the wiper blades. Always use washer fluid when using the wipers to remove salt or dirt from a dry windshield.

Avoid using the wiper blades to remove frost or ice from the windshield. Keep the blade rubber out of contact with petroleum products such as engine oil, gasoline, etc.

NOTE:

Life expectancy of wiper blades varies depending on geographical area and frequency of use. Poor performance of blades may be present with chattering, marks, water lines or wet spots. If any of these conditions are present, clean the wiper blades or replace as necessary.

The wiper blades and wiper arms should be inspected periodically, not just when wiper performance problems are experienced. This inspection should include the following points:

  • Wear or uneven edges
  • Foreign material
  • Hardening or cracking
  • Deformation or fatigue

If a wiper blade or wiper arm is damaged, replace the affected wiper arm or blade with a new unit. Do not attempt to repair a wiper arm or blade that is damaged.

Wiper Blade Removal/Installation
CAUTION!

Do not allow the wiper arm to spring back against the glass without the wiper blade in place or the glass may be damaged.
  1. Lift the wiper arm to raise the wiper blade off of the glass, until the wiper arm is in the full up position.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image ① ② ③ A0604000197US

Windshield Wiper Arm And Blade

1-Wiper
2 - Locking Tab
3-Wiper Arm

  1. To disengage the wiper blade from the wiper arm, flip up the locking tab.

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text_image ① ② M0804000168US

Wiper Locking Assembly

1-Wiper
2 - Locking Tab

  1. Tilt the lower end of the wiper blade away from the arm and use one finger push the release tab toward the wiper arm.

RAM 4500 Chassis Cab (2021) - NOTE: - 3

text_image Technical diagram showing labeled components of a mechanical or architectural component with numbered parts 1, 2, and 3.

Wiper Disengaging

1 - Locking Tab
2-Wiper
3 - Release Tab

  1. Slide the wiper blade down towards the base of the wiper arm.

382 SERVICING AND MAINTENANCE

  1. With the wiper blade disengaged, remove the wiper blade from the wiper arm by holding the wiper arm with one hand and separating the wiper blade from the wiper arm with the other hand (move the wiper blade down toward the base of the wiper arm and away from the J hook in the end of the wiper arm).

RAM 4500 Chassis Cab (2021) - SERVICING AND MAINTENANCE - 1

text_image ① ② ③ M0804000170US

Removing Wiper From Wiper Arm

1-Wiper
2 - Locking Tab
3 — Wiper Arm J Hook

  1. Gently lower the wiper arm onto the glass.

Installing The Front Wipers

  1. Lift the wiper arm off of the glass, until the wiper arm is in the full up position.
  2. Position the wiper blade under the hook on the tip of the wiper arm with the wiper locking tab open.
  3. Insert the receiver bracket on the wiper assembly into the hook on the tip of the arm through the opening in the wiper blade under the locking tab.
  4. Slide the wiper blade up into the hook on the wiper arm until it is latched (engagement will be accompanied by an audible click). Fold down the latch release tab and snap it into its locked position.
  5. Gently lower the wiper blade onto the glass.

EXHAUST SYSTEM

The best protection against carbon monoxide entry into the vehicle body is a properly maintained engine exhaust system.

If you notice a change in the sound of the exhaust system; or if the exhaust fumes can be detected inside the vehicle; or when the underside or rear of the vehicle is damaged; have an authorized technician inspect the complete exhaust system and adjacent body areas for broken, damaged, deteriorated, or mispositioned parts. Open seams or loose connections could permit exhaust fumes to seep into the passenger compartment. In addition, have the exhaust system inspected each time the vehicle is raised for lubrication or oil change. Replace as required.

WARNING!

  • Exhaust gases can injure or kill. They contain carbon monoxide (CO), which is colorless and odorless. Breathing it can make you unconscious and can eventually poison you ➤ page 333.
  • A hot exhaust system can start a fire if you park over materials that can burn. Such materials might be grass or leaves coming into contact with your exhaust system. Do not park or operate your vehicle in areas where your exhaust system can contact anything that can burn.

CAUTION!

  • The catalytic converter requires the use of unleaded fuel only. Leaded gasoline will destroy the effectiveness of the catalyst as an emissions control device and may seriously reduce engine performance and cause serious damage to the engine.
  • Damage to the catalytic converter can result if your vehicle is not kept in proper operating condition. In the event of engine malfunction, particularly involving engine misfire or other apparent loss of performance, have your vehicle serviced promptly. Continued operation of your vehicle with a severe malfunction could cause the converter to overheat, resulting in possible damage to the converter and vehicle.

Under normal operating conditions, the catalytic converter will not require maintenance. However, it is important to keep the engine properly tuned to ensure proper catalyst operation and prevent possible catalyst damage.

NOTE:

Intentional tampering with emissions control systems can result in civil penalties being assessed against you.

In unusual situations involving grossly malfunctioning engine operation, a scorching odor may suggest severe and abnormal catalyst overheating. If this occurs, stop the vehicle, turn off the engine and allow it to cool. Service, including a tune-up to manufacturer's specifications, should be obtained immediately.

To minimize the possibility of catalytic converter damage:

  • Do not interrupt the ignition when the transmission is in gear and the vehicle is in motion.
  • Do not try to start the vehicle by pushing or towing the vehicle.
  • Do not idle the engine with any ignition components disconnected or removed, such as when diagnostic testing, or for prolonged periods during very rough idle or malfunctioning operating conditions.

COOLING SYSTEM

WARNING!

  • You or others can be badly burned by hot engine coolant (antifreeze) or steam from your radiator. If you see or hear steam coming from under the hood, do not open the hood until the radiator has had time to cool. Never open a cooling system pressure cap when the radiator or coolant bottle is hot.
  • Keep hands, tools, clothing, and jewelry away from the radiator cooling fan when the hood is raised. The fan starts automatically and may start at any time, whether the engine is running or not.
  • When working near the radiator cooling fan disconnect the fan motor lead or turn the ignition to the OFF mode. The fan is temperature controlled and can start at any time the ignition is in the ON mode.

Engine Coolant Checks

Check the engine coolant (antifreeze) protection every 12 months (before the onset of freezing weather, where applicable). If the engine coolant is dirty or rusty in appearance, the system should be drained, flushed and refilled with fresh coolant. Check the front of the A/C condenser or radiator for any accumulation of bugs, leaves, etc. If dirty, clean by gently spraying water from a garden hose vertically down the face of the A/C condenser or the back of the radiator core.

Check the engine cooling system hoses for brittle rubber, cracking, tears, cuts and tightness of the connection at the coolant recovery bottle and radiator. Inspect the entire system for leaks.

DO NOT REMOVE THE COOLANT PRESSURE CAP WHEN THE COOLING SYSTEM IS HOT.

Cooling System — Drain, Flush And Refill

NOTE:

Some vehicles require special tools to add coolant properly. Failure to fill these systems properly could lead to severe internal engine damage. If any coolant is needed to be added to the system please contact an authorized dealer. If the engine coolant (antifreeze) is dirty or contains visible sediment, have an authorized dealer clean and flush with Organic Additive Technology (OAT) coolant (conforming to MS.90032).

For the proper maintenance intervals page 354.

Selection Of Coolant

For further information ↩ page 440.

NOTE:

- Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant, may result in engine damage and may decrease corrosion protection. OAT engine coolant is different and should not be mixed with Hybrid Organic Additive Technology (HOAT) engine coolant or any “globally compatible” coolant. If a non-OAT engine coolant is introduced into the cooling system in an emergency, the cooling system will need to be drained, flushed, and refilled with fresh OAT coolant (conforming to MS.90032), by an authorized dealer as soon as possible.

  • Do not use water alone or alcohol-based engine coolant products. Do not use additional rust inhibitors or anti-rust products, as they may not be compatible with the radiator engine coolant and may plug the radiator.
  • This vehicle has not been designed for use with propylene glycol-based engine coolant. Use of propylene glycol-based engine coolant is not recommended.
  • Some vehicles require special tools to add coolant properly. Failure to fill these systems properly could lead to severe internal engine damage. If any coolant is needed to be added to the system please contact an authorized dealer.

Adding Coolant

Your vehicle has been built with an improved engine coolant (OAT coolant conforming to MS.90032) that allows extended maintenance intervals. This engine coolant (antifreeze) can be used up to ten years or 150,000 miles (240,000 km) before replacement. To prevent reducing this extended maintenance period, it is important that you use the same engine coolant (OAT coolant conforming to MS.90032) throughout the life of your vehicle.

Please review these recommendations for using Organic Additive Technology (OAT) engine coolant that meets the requirements of FCA Material Standard MS.90032. When adding engine coolant:

  • We recommend using Mopar Antifreeze/ Coolant 10 Year/150,000 Mile (240,000 km) Formula OAT that meets the requirements of FCA Material Standard MS.90032.
  • Mix a minimum solution of 50% OAT engine coolant that meets the requirements of FCA Material Standard MS.90032 and distilled water. Use higher concentrations (not to exceed 70%) if temperatures below -34°F (-37°C) are anticipated. Please contact an authorized dealer for assistance.
  • Use only high purity water such as distilled or deionized water when mixing the water/ engine coolant solution. The use of lower quality water will reduce the amount of corrosion protection in the engine cooling system.

NOTE:

- It is the owner's responsibility to maintain the proper level of protection against freezing according to the temperatures occurring in the area where the vehicle is operated.

  • Some vehicles require special tools to add coolant properly. Failure to fill these systems properly could lead to severe internal engine damage. If any coolant is needed to be added to the system, please contact a local authorized dealer.
  • Mixing engine coolant types is not recommended and can result in cooling system damage. If HOAT and OAT coolant are mixed in an emergency, have an authorized dealer drain, flush, and refill with OAT coolant (conforming to MS.90032) as soon as possible.

Cooling System Pressure Cap

The cap must be fully tightened to prevent loss of engine coolant (antifreeze), and to ensure that engine coolant will return to the radiator from the coolant expansion bottle/recovery tank (if equipped).

The cap should be inspected and cleaned if there is any accumulation of foreign material on the sealing surfaces.

WARNING!

  • Do not open hot engine cooling system. Never add engine coolant (antifreeze) when the engine is overheated. Do not loosen or remove the cap to cool an overheated engine. Heat causes pressure to build up in the cooling system. To prevent scalding or injury, do not remove the pressure cap while the system is hot or under pressure.
  • Do not use a pressure cap other than the one specified for your vehicle. Personal injury or engine damage may result.

Disposal Of Used Coolant

Used ethylene glycol-based coolant (antifreeze) is a regulated substance requiring proper disposal. Check with your local authorities to determine the disposal rules for your community. To prevent ingestion by animals or children, do not store ethylene glycol-based coolant in open containers or allow it to remain in puddles on the ground, clean up any ground spills immediately. If ingested by a child or pet, seek emergency assistance immediately.

Checking Coolant Level — 6.4L Engine

The level of the coolant in the pressurized coolant bottle should be between the "MIN" and "MAX" range on the bottle when the engine is cold.

The radiator normally remains completely full, so there is no need to remove the cap unless checking for coolant freeze point or replacing engine coolant (antifreeze). Advise your service attendant of this. As long as the engine operating temperature is satisfactory, the coolant bottle need only be checked once a month. When additional engine coolant is needed to maintain the proper level, it should be added to the coolant bottle. Do not overfill.

Cooling System Notes

NOTE:

When the vehicle is stopped after a few miles/ kilometers of operation, you may observe vapor coming from the front of the engine compartment. This is normally a result of moisture from rain, snow, or high humidity accumulating on the radiator and being vaporized when the thermostat opens, allowing hot engine coolant (anti-freeze) to enter the radiator. If an examination of your engine compartment shows no evidence of radiator or hose leaks, the vehicle may be safely driven. The vapor will soon dissipate.

  • Do not overfill the coolant expansion bottle.
  • Check the coolant freeze point in the radiator and in the coolant expansion bottle. If engine coolant (antifreeze) needs to be added, the contents of the coolant expansion bottle must also be protected against freezing.
  • If frequent engine coolant additions are required, the cooling system should be pressure tested for leaks.
  • Maintain engine coolant concentration at a minimum of 50% OAT coolant (conforming to MS.90032) and distilled water for proper corrosion protection of your engine which contains aluminum components.
  • Make sure that the coolant expansion bottle overflow hoses are not kinked or obstructed.
  • Keep the front of the radiator clean. If your vehicle is equipped with air conditioning, keep the front of the condenser clean.

- Do not change the thermostat for Summer or Winter operation. If replacement is ever necessary, install ONLY the correct type thermostat. Other designs may result in unsatisfactory engine cooling performance, poor gas mileage, and increased emissions.

CHARGE AIR COOLER — INTER-COOLER

The charge air cooler is positioned below the radiator and the air conditioner condenser. Air enters the engine through the air cleaner and passes through the turbocharger, where it is pressurized. This pressurized air rapidly reaches high temperature. The air is then directed through a hose to the charge air cooler and through another hose to the intake manifold of the engine. The air entering the engine has been cooled by about 50° to 100°F (10° to 38°C). This cooling process enables more efficient burning of fuel resulting in fewer emissions.

To guarantee optimum performance of the system, keep the surfaces of the charge air cooler, condenser and radiator clean and free of debris. Periodically check the hoses leading to and from the charge air cooler for cracks or loose clamps resulting in loss of pressure and reduced engine performance.

BRAKE SYSTEM

In order to ensure brake system performance, all brake system components should be inspected periodically → page 354.

WARNING!

Riding the brakes can lead to brake failure and possibly a collision. Driving with your foot resting or riding on the brake pedal can result in abnormally high brake temperatures, excessive lining wear, and possible brake damage. You would not have your full braking capacity in an emergency.

Fluid Level Check — Brake Master Cylinder

The fluid level of the master cylinder should be checked when performing under the hood service or immediately if the brake system warning lamp indicates system failure.

If necessary, add fluid to bring level within the designated marks on the side of the reservoir of the brake master cylinder. Be sure to clean the top of the master cylinder area before removing cap.

With disc brakes the fluid level can be expected to fall as the brake linings wear. However, an unexpected drop in fluid level may be caused by a leak and a system check should be conducted.

For further information ↩ page 444.

WARNING!

  • Use only manufacturer's recommended brake fluid ➕ page 444. Using the wrong type of brake fluid can severely damage your brake system and/or impair its performance. The proper type of brake fluid for your vehicle is also identified on the original factory installed hydraulic master cylinder reservoir.
  • To avoid contamination from foreign matter or moisture, use only new brake fluid or fluid that has been in a tightly closed container. Keep the master cylinder reservoir cap secured at all times. Brake fluid in a open container absorbs moisture from the air resulting in a lower boiling point. This may cause it to boil unexpectedly during hard or prolonged braking, resulting in sudden brake failure. This could result in a collision.

(Continued)

WARNING! (Continued)

  • Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts, causing the brake fluid to catch fire. Brake fluid can also damage painted and vinyl surfaces, care should be taken to avoid its contact with these surfaces.
  • Do not allow petroleum based fluid to contaminate the brake fluid. Brake seal components could be damaged, causing partial or complete brake failure. This could result in a collision.

AUTOMATIC TRANSMISSION

Special Additives

The manufacturer strongly recommends against using any special additives in the transmission. Automatic Transmission Fluid (ATF) is an engineered product and its performance may be impaired by supplemental additives. Therefore, do not add any fluid additives to the transmission. The only exception to this policy is the use of special dyes for diagnosing fluid leaks in six-speed transmissions. Avoid using transmission sealers as they may adversely affect seals.

CAUTION!

Do not use chemical flushes in your transmission as the chemicals can damage your transmission components. Such damage is not covered by the New Vehicle Limited Warranty.

Fluid Level Check — Eight-Speed Transmission

The fluid level is preset at the factory and does not require adjustment under normal operating conditions. Routine fluid level checks are not required, therefore the transmission has no dipstick. An authorized dealer can check your transmission fluid level using special service tools.

If you notice fluid leakage or transmission malfunction, visit an authorized dealer immediately to have the transmission fluid level checked. Operating the vehicle with an improper fluid level can cause severe transmission damage.

CAUTION!

If a transmission fluid leak occurs, visit an authorized dealer immediately. Severe transmission damage may occur. An authorized dealer has the proper tools to adjust the fluid level accurately.

Fluid Level Check — Six-Speed Transmission

It is best to check the fluid level when the transmission is at normal operating temperature (158-176°F / 70-80°C). This normally occurs after at least 15 miles (25 km) of driving. At normal operating temperature the fluid cannot be held comfortably between the fingertips. You can read the transmission sump temperature in the instrument cluster screen ➤ page 90.

Use the following procedure to check the transmission fluid level properly:

  1. Monitor the transmission temperature using the instrument cluster display, and operate the vehicle as required to reach the normal operating temperature. If the transmission is not functioning properly, or the vehicle cannot be driven, see the NOTE and CAUTION below about checking the fluid level at colder temperatures.
  2. Park the vehicle on level ground.
  3. Run the engine at normal idle speed for at least 60 seconds, and leave the engine running for the rest of this procedure.
  4. Fully apply the parking brake, and press the brake pedal.
  5. Place the gear selector momentarily into each gear position (allowing time for the transmission to fully engage in each position), ending with the transmission in PARK.
  6. Remove the dipstick, wipe it clean and reinsert it until seated.

  7. Remove the dipstick again and note the fluid level on both sides. The fluid level reading is only valid if there is a solid coating of oil on both sides of the dipstick. Note that the holes in the dipstick will be full of fluid if the actual level is at or above the hole. The fluid level should be between the "HOT" (upper) reference holes on the dipstick at normal operating temperature. If the fluid level is low, add fluid through the dipstick tube to bring it to the proper level. Do not overfill. Use ONLY the specified fluid page 444. After adding any quantity of oil through the dipstick tube, wait a minimum of two minutes for the oil to fully drain into the transmission before rechecking the fluid level.

NOTE:

If it is necessary to check the transmission below the operating temperature, the fluid level should be between the two "COLD" (lower) holes on the dipstick with the fluid at 60-70°F / 16-21°C. Only use the COLD region of the dipstick as a rough reference when setting the fluid level after a transmission service or fluid change. Re-check the fluid level, and adjust as required, once the transmission reaches normal operating temperature.

CAUTION!

If the fluid temperature is below 50^ F ( 10^ C) it may not register on the dipstick. Do not add fluid until the temperature is elevated enough to produce an accurate reading. Run the engine at idle, in PARK, to warm the fluid.

  1. Reinsert the dipstick. Check for leaks. Release the parking brake.

NOTE:

If it is necessary to check the transmission below the operating temperature, the fluid level should be between the two COLD (lower) holes on the dipstick with the fluid at 68-86°F / 20-30°C. Only use the COLD region of the dipstick as a rough reference when setting the fluid level after a transmission service or fluid change. Re-check the fluid level, and adjust as required, once the transmission reaches normal operating temperature.

CAUTION!

If the fluid temperature is below 50^ F ( 10^ C) it may not register on the dipstick. Do not add fluid until the temperature is elevated enough to produce an accurate reading. Run the engine at idle, in PARK, to warm the fluid.

Fluid And Filter Changes — Eight-Speed Transmission

Under normal operating conditions, the fluid installed at the factory will provide satisfactory lubrication for the life of the vehicle.

Routine fluid and filter changes are not required. However, change the fluid and filter if the fluid becomes contaminated (with water, etc.), or if the transmission is disassembled for any reason.

Fluid And Filter Changes — Six Speed Transmission

For the proper maintenance intervals → page 354.

In addition, change the fluid and filters if the fluid becomes contaminated (with water, etc.), or if the transmission is disassembled for any reason.

Selection Of Lubricant

It is important to use the proper transmission fluid to ensure optimum transmission performance and life. Use only the manufacturer's specified transmission fluid page 444. It is important to maintain the transmission fluid at the correct level using the recommended fluid. No chemical flushes should be used in any transmission; only the approved lubricant should be used.

CAUTION!

Using a transmission fluid other than the manufacturer's recommended fluid may cause deterioration in transmission shift quality and/or torque converter shudder, and (for six-speed transmissions) will require more frequent fluid and filter changes ↗ page 444.

REAR AXLE AND 4x4 FRONT DRIVING AXLE FLUID LEVEL

For models with 9.25 in Front Axles and 11.5 in Rear Axles → page 444. For normal service, periodic fluid level checks are not required. When the vehicle is serviced for other reasons, the exterior surfaces of the axle assembly should be inspected.

When checking the fluid level, the vehicle should be in a level position. The fluid level at room temperature should be as follows:

3500 Front Axle: 14 inch ± 14 inch (6.4 mm ± 6.4 mm) below the bottom of the fill hole.

3500 Rear Axle: 14 inch ± 14 inch (6.4 mm ± 6.4 mm) below the bottom of the fill hole.

4500/5500 Front Axle: 14 inch +/- 14 inch (6.4 mm ± 6.4 mm) below the bottom of the fill hole.

4500/5500 Rear Axle: 1/8 inch +/- 1/8 inch (3.2 mm +/- 3.2 mm) below the bottom of the fill hole.

Drain And Refill

On 4500/5500 vehicles, remove the lower bolt to drain the axle fluid.

RAM 4500 Chassis Cab (2021) - Drain And Refill - 1

text_image 4500/5500 Rear Axle Plugs A0804000243US

1 - 4500/5500 Rear Axle Fluid Fill Plug
2 - 4500/5500 Rear Axle Fluid Drain Plug

For the proper maintenance intervals → page 354.

Lubricant Selection

For further information ↘ page 444.

NOTE:

The presence of water in the gear lubricant will result in corrosion and possible failure of differential components. Operation of the vehicle in water, as may be encountered in some off-highway types of service, will require draining and refilling the axle to avoid damage.

Limited-Slip Differentials DO REQUIRE limited slip oil additive (friction modifiers).

NOTE:

Slight noise and mild shuddering may be evident while turning a vehicle with limited slip differential on concrete or dry pavement. These conditions should be considered normal operation of the limited slip differential.

TRANSFER CASE

Fluid Level Check

This fluid level can be checked by removing the filler plug. The fluid level should be to the bottom edge of the filler plug hole with the vehicle in a level position.

Drain And Refill

For the proper maintenance intervals page 354.

Selection Of Lubricant

Use only the manufacturer's recommended fluid ➤ page 444.

NOISE CONTROL SYSTEM REQUIRED MAINTENANCE & WARRANTY

All vehicles built over 10,000 lbs. (4,535 kg) Gross Vehicle Weight Rating and manufactured for sale and use in the United States are required to comply with the Federal Government's Exterior Noise Regulations. These vehicles can be identified by the Noise Emission Control Label located in the operator's compartment.

RAM 4500 Chassis Cab (2021) - NOISE CONTROL SYSTEM REQUIRED MAINTENANCE &amp; WARRANTY - 1

text_image Vehicle Noise Emission Control Information Date of Vehicle Manufacture This vehicle conforms to U.S. EPA regulations for noise emission applicable to medium and heavy duty trucks. The following acts or the causing thereof by any person are prohibited by the Noise Control Act of 1972: (A) the removal or rendering inoperative, other than for purposes of maintenance, repair, or replacement, of any noise control device or element of design (listed in the Owner's Manual) incorporated into this vehicle in compliance with the Noise Control Act (B) the use of this vehicle after such device or element of design has been removed or rendered inoperative. KDMH72 55216044

Required Maintenance For Noise Control Systems

The following maintenance services must be performed every six months or 7,500 miles (12,000 km) whichever comes first, to ensure proper operation of the noise control systems. In addition, inspection and service should be performed anytime a malfunction is observed or suspected. Proper maintenance of the entire vehicle will help the effectiveness of the noise control systems.

Exhaust System

Inspect the entire exhaust system for leaks and damaged parts. Devices such as hangers, clamps, and U-bolts should be tight and in good condition. Damaged components, burned or blown out mufflers, burned or rusted out exhaust pipes should be replaced according to the procedures and specifications outlined in the appropriate service manual.

Air Cleaner Assembly

Inspect air cleaner housing for proper assembly and fit. Make certain that the air cleaner is properly positioned and that the cover is tight. Check all hoses leading to the air cleaner for tightness. The air filter element must also be clean and serviced according to the instructions outlined in the Scheduled Maintenance section of this manual.

Tampering With Noise Control System Prohibited

Federal law prohibits the following acts or the causing thereof: (1) the removal or rendering inoperative by any person, other than for purposes of maintenance, repair, or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use, or (2) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.

Among those acts presumed to constitute tampering are the acts listed below.

AIR CLEANER

  • Removal of the air cleaner.
  • Removal of the air cleaner filter element from the air cleaner housing.
  • Removal of the air ducting.

EXHAUST SYSTEM

- Removal or rendering inoperative exhaust system components including the muffler or tailpipe.

ENGINE COOLING SYSTEM

  • Removal or rendering inoperative the fan clutch.
  • Removal of the fan shroud.

Noise Emission Warranty

The manufacturer warrants that this vehicle as manufactured by the manufacturer, was designed, built and equipped to conform at the time it left the manufacturer's control with all applicable U.S. EPA Noise Control Regulations.

This warranty covers this vehicle as designed, built and equipped by the manufacturer, and is not limited to any particular part, component or system of the vehicle manufactured by the manufacturer. Defects in design, assembly or in any part, component or system of the vehicle as manufactured by the manufacturer, which, at the time it left the manufacturer's control, caused noise emissions to exceed Federal standards, are covered by this warranty for the life of the vehicle.

Maintenance Log and Service Chart (Diesel Engines)

Noise Systems Maintenance Chart and Service Log — Insert Month, Day, Year under column mileage closest to the mileage at which service was performed.
MILES 7,500 15,000 22,500 30,000 37,500 45,000 52,500 60,000KILOMETERS 12,000 24 ,000 36,000 48,000 60,000 72,000 84,000 96,000
Exhaust system-inspect
Air cleaner assembly-inspect
ODOMETER READING
PERFORMED BY
PERFORMED AT
MILES 67,500 75,000 82,500 90,000 97,500 105,000 112,500 120,000KILOMETERS 108,000 120,000 132,000 144,000 156,000 168,000 180,000 192,000
Exhaust system-inspect
Air cleaner assembly-inspect
ODOMETER READING

Noise Systems Maintenance Chart and Service Log — Insert Month, Day, Year under column mileage closest to the mileage at which service was performed.

PERFORMED BY
PERFORMED AT

FUSES

General Information

WARNING!

  • When replacing a blown fuse, always use an appropriate replacement fuse with the same amp rating as the original fuse. Never replace a fuse with another fuse of higher amp rating. Never replace a blown fuse with metal wires or any other material. Do not place a fuse inside a circuit breaker cavity or vice versa. Failure to use proper fuses may result in serious personal injury, fire and/or property damage.
  • Before replacing a fuse, make sure that the ignition is off and that all the other services are switched off and/or disengaged.
  • If the replaced fuse blows again, contact an authorized dealer.

(Continued)

WARNING! (Continued)

- If a general protection fuse for safety systems (air bag system, braking system), power unit systems (engine system, transmission system) or steering system blows, contact an authorized dealer.

The fuses protect electrical systems against excessive current.

When a device does not work, you must check the fuse element inside the blade fuse for a break/melt.

Also, please be aware that when using power outlets for extended periods of time with the engine off may result in vehicle battery discharge.

RAM 4500 Chassis Cab (2021) - WARNING! (Continued) - 1

text_image Blade Fuses A0706000088US

1 - Fuse Element
2 - Blade Fuse with a good/functional fuse element
3 - Blade fuse with a bad/not functional fuse element (blown fuse)

Power Distribution Center

The Power Distribution Center is located in the engine compartment near the battery. This center contains cartridge fuses, micro fuses, relays, and circuit breakers. A description of each fuse and component may be stamped on the inside cover, otherwise the cavity number of each fuse is stamped on the inside cover that corresponds to the following chart.

RAM 4500 Chassis Cab (2021) - Power Distribution Center - 1

natural_image Interior view of a car's dashboard and engine compartment with no visible text or symbols

Power Distribution Center Location

Cavity Cartridge Fuse Micro Fuse Description
F01 - - Spare
F02 60 Amp Yellow - ABS Pump Motor (HD Only)
F03 60 Amp Yellow - Rad Fan - If Equipped
F04 50 Amp Red 400W Inverter - If Equipped
F05 40 Amp Green - Compressor For Air Suspension - If Equipped
F06 40 Amp Green - Steering Torque Overlay Module (STOM)
F07 40 Amp Green - Starter Solenoid
F0820 Amp Blue- NOX Sensor - If Equipped
F09 40 Amp Green - Diesel / Fuel Heater - If Equipped
F0930 Amp Pink- Gas / Brake Vacuum Pump - If Equipped
F10 40 Amp Green - CBC #2 / Ext Lights
F11 40 Amp Green - Brake System Module (ECU and Valves)

396 SERVICING AND MAINTENANCE

Cavity Cartridge FuseMicro FuseDescription
F12 40 Amp Green – CBC #3 / Pwr Locks
F13 40 Amp Green – Blower Motor
F14 40 Amp Green – CBC #4 / Ext Lights
F15 30 Amp Pink – Power Side Steps – If Equipped
F16 30 Amp Pink – Smart-Bar Module – If Equipped
F17 30 Amp Pink – Winch Control Module – If Equipped
F19 30 Amp Pink – Diesel SCR Feed– If Equipped
F20 30 Amp Pink – Passenger Door Module
F21 30 Amp Pink – Drive Train Control Module
F22 20 Amp Blue – Gas / ECM– If Equipped
F22 25 Amp White – Diesel PCM – If Equipped
F23 30 Amp Pink – CBC #1 / Int Light
F24 30 Amp Pink – Driver Door Module
F25 30 Amp Pink – Front Wiper
F26 – - Spare
F27 – - Spare
F28 20 Amp Blue – Trailer Tow Backup Lights – If Equipped
F29 20 Amp Blue – Trailer Tow Parking Lights – If Equipped
F30 30 Amp Pink – Trailer Tow Receptacle / Trailer Tow (Separate E-Brake) / Trailer Tow
F31 – - Spare
CavityCartridge FuseMicro FuseDescription
F32 - - Spare
F33 20 Amp Blue - Trans Control Module - If Equipped
F34 30 Amp Pink - Vehicle System Interface Module #2 - If Equipped
F35 30 Amp Pink - Sunroof - If Equipped
F36 30 Amp Pink - Electric Back Light - If Equipped
F37 30 Amp Pink - Diesel Frame / Fuel Heater #2- If Equipped
F38 30 Amp Pink - Integrated Trailer Brake Module - If Equipped
F39 - - Spare
F40 - 10 Amp Red Ventilated Seats - If Equipped
F41 - 10 Amp Red Active Grille Shutter / Active Air Dam - If Equipped
F42 - 20 Amp Yellow Horn
F43 - 15 Amp Blue Heated Steering Wheel - If Equipped
F44 - 10 Amp Red Diagnostic Port
F46 - 10 Amp Red Upfitters Relay Coil - If Equipped
F47 - - Spare
F48 - - Spare
F49 - 10 Amp Red IP Cluster / CSG
F50 - 20 Amp Yellow Air Suspension Control Module - If Equipped
F51 - 10 Amp RedIgnition Node Module / Keyless Ignition Node Module, Radio Frequency Hub Module / Electric Steering Column Lock - If Equipped
F52 - 5 Amp Tan Battery Sensor

398 SERVICING AND MAINTENANCE

CavityCartridge FuseMicro FuseDescription
F53 - 20 Amp Yellow Trailer Tow - Left Turn/Stop Lights - If Equipped
F54 - 20 Amp Yellow Non Memory Adjustable Pedals - If Equipped
F55 - - Spare
F56 - 10 Amp Red Fuel Vapor Blocker Valve - If Equipped
F57 - 20 Amp Yellow TCM / PCM / Solenoid Trans Pressure SW (RFE Trans Only) - If Equipped
F58 - 10 Amp Red Bed Lighting (LED) - If Equipped
F60 - - Spare
F61 - 10 Amp Red NH3 Sensor / PM Sensor - If Equipped
F62 - 10 Amp Red Air Conditioning Clutch
F63 - 20 Amp Yellow Ignition Coils / CAPS
F64 - 25 Amp Clear Fuel Injectors / Powertrain Control Module / SRV - If Equipped
F65 - 10 Amp Red MOD Inverter (Wake Up) / Power Port / USB IP / WCPM - If Equipped
F66 - 10 Amp Red Sunroof / USB Rear- If Equipped
F67 - 10 Amp Red UCI Port / USB Front
F68 - 10 Amp Red AEB RACAM HTR - If Equipped
F69 - 15 Amp Blue SCR Module 12 Volt- If Equipped
F70 - 30 Amp Green Fuel Pump Motor / K09 RLY Coil Feed - If Equipped
F71 - 25 Amp Clear Amplifier / Active Noise Cancellation - If Equipped
F72 - - Spare
F73 - 20 Amp Yellow Fuel Transfer Pump - If Equipped
Cavity Cartridge Fuse Micro Fuse Description
F74 - 10 Amp Red Backup Alarm - If Equipped
F75 - 10 Amp Red ATMM / Coil-SCR Module RLY - If Equipped
F76 - 10 Amp Red Electronic Stability Control - If Equipped
F77 - 10 Amp Red Drivetrain Control Module / Front Axle Disconnect Module / TCM/ STOM
F78 - 15 Amp BlueEngine Control Module / Powertrain Control Module / AEB RACM MOD / Feed To AUX PDC Relay Coils/ HRLS
F79 - 15 Amp Blue ID / Clearance Lights
F80 - 10 Amp Red Overhead Console / Assist / 911 - If Equipped
F81 - 20 Amp Yellow Trailer Tow Right Turn / Stop Lights - If Equipped
F82 - 10 Amp Red Steering Column Control Module / Cruise Control
F83 - - Spare
F84 - 15 Amp Blue ASBM / HVAC / ICS / Rear Heated Seat Switches
F85 - 10 Amp Red Airbag Module
F86 - 10 Amp Red Airbag Module
F87 - 10 Amp RedAir Suspension / ITBM / Steering Column Control Module / MOD Gateway CAN-C Trailer TPM
F88 - 15 Amp Blue Instrument Panel Cluster
F90/F91 - 20 Amp YellowPower Outlet / BattPower Outlet / Acc
F92 - - Spare
F93 - - Spare

400 SERVICING AND MAINTENANCE

Cavity Cartridge Fuse Micro Fuse Description
F94 – 10 Amp RedShift-By-Wire / Transfer Case Switch / Module TPM Trailer / Module Gateway Can-C Trailer TPM
F95 – 10 Amp RedRearview Camera / Park Assist / CHMSL Camera / Blind Spot Sensor / Surround View Camera
F96 – 10 Amp Red Trailer Camera – If Equipped
F97 – 20 Amp Yellow Front Heated Seat Passenger – If Equipped
F98 – 20 Amp Yellow Front Heated Seat Driver – If Equipped
F99 – 10 Amp Red HVAC / In-Car Temperature Sensor / CSG MOD
F100 – 10 Amp Red Upfitters Box Feed– If Equipped
F101 – 20 Amp Yellow Rear Heated Seat Right – If Equipped
F102 – 20 Amp Yellow Rear Heated Seat Left / Run RLY #3 Coil – If Equipped
F103 – 10 Amp Red HeadLamp AFLS – If Equipped
F104 – 20 Amp Yellow UCI Port / USB Rear

CAUTION!

- When installing the power distribution center cover, it is important to ensure the cover is properly positioned and fully latched. Failure to do so may allow water to get into the power distribution center and possibly result in an electrical system failure.

(Continued)

CAUTION! (Continued)

- When replacing a blown fuse, it is important to use only a fuse having the correct amperage rating. The use of a fuse with a rating other than indicated may result in a dangerous electrical system overload. If a properly rated fuse continues to blow, it indicates a problem in the circuit that must be corrected.

BULB REPLACEMENT

Replacement Bulbs

NOTE:

See an authorized dealer for LED bulb replacement.

All of the inside bulbs are brass or glass-wedge base. Aluminum base bulbs are not approved.

Interior Bulbs
Bulb Name Bulb Number
Overhead Console Lamps TS 212-9
Dome Lamp 7679
NOTE:For lighted switches, see an authorized dealer for replacement instructions.
Exterior Bulbs
Bulb Name Bulb Number
Low Beam (Halogen Reflector Headlamp) H11LL
High Beam (Halogen Reflector Headlamp) 9005LL
Low & High Beam (LED Reflector Headlamp) LED (Serviced at an authorized dealer)
Low & High Beam (LED Projector Headlamp) LED (Serviced at an authorized dealer)
Turn Signal / Front Position (Halogen Reflector Headlamp) 7444NA
Turn Signal (LED Projector Headlamp) LED (Serviced at an authorized dealer)

402 SERVICING AND MAINTENANCE

Exterior Bulbs
Bulb NameBulb Number
Front Position (LED Headlamps) LED (Serviced at an authorized dealer)
Turn Signal (LED Reflector Headlamp) 7444NA
Front Side Marker (Headlamps) LED (Serviced at an authorized dealer)
Front Fog Lamps (Halogen Reflector Headlamp) H11LL
Front Fog Lamps (LED Headlamp) LED (Serviced at an authorized dealer)
Side Indicators (Front And Side View Mirror) LED (Serviced at an authorized dealer)
Center High Mounted Stop Lamp (CHMSL) 921
Cab Roof Marker Lamps 194NA
Box Off Tail Lamps – Stop/Turn/Tail/License Plate 1157
Box Off Tail Lamps – Back Up1156

Replacing Exterior Bulbs

Base Quad: Low Beam Headlamp, High Beam Headlamp, Front Park And Turn — If Equipped

Low Beam

See below steps to replace:

  1. Open the hood.
  2. Disconnect and isolate the negative battery cable.

  3. Reach into the front wheel house ahead of the front wheel, remove the fastener, and lift the cover over the access hole in the front of the wheel house splash shield. Access to the rear of the lamp can be gained through this access hole.

RAM 4500 Chassis Cab (2021) - Replacing Exterior Bulbs - 1

natural_image Mechanical component diagram showing a highlighted internal section with a pointer (no text or symbols)

Splash Shield Access Cover

  1. Reach through the access hole of the wheel house splash shield and disengage the bulb access cover by rotating counterclockwise.

RAM 4500 Chassis Cab (2021) - Replacing Exterior Bulbs - 2

natural_image Mechanical component diagram showing internal parts and a highlighted section (no text or symbols)

Bulb Access Cover

  1. Disconnect the internal lamp wiring harness connector from the low beam bulb.

CAUTION!

  • Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
  • Always use the correct bulb size and type for replacement. An incorrect bulb size or type may overheat and cause damage to the lamp, the bulb socket, or the lamp wiring.

  • Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the lamp.

  • Pull the bulb straight out from the housing.
  • Reverse the procedure for installation of new bulb and covers.

High Beam

See below steps to replace:

  1. Open the hood.
  2. Disconnect and isolate the negative battery cable.

RAM 4500 Chassis Cab (2021) - High Beam - 1

natural_image Mechanical component diagram showing internal parts with no visible text or symbols

Bulb Access Cover

  1. Look under the hood and behind the headlamp to find the high beam bulb access cover.

  2. Reach behind the headlamp and disengage the access cover by rotating counterclockwise.

  3. Disconnect the internal lamp wiring harness connector from the high beam bulb.

CAUTION!

  • Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.
  • Always use the correct bulb size and type for replacement. An incorrect bulb size or type may overheat and cause damage to the lamp, the bulb socket, or the lamp wiring.

  • Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the lamp.

  • Pull the bulb straight out from the housing.
  • Reverse the procedure for installation of new bulb and covers.

404 SERVICING AND MAINTENANCE

Outer Park And Turn

See below steps to replace:

  1. Open the hood.
  2. Disconnect and isolate the negative battery cable.
  3. Reach into the front wheel house ahead of the front wheel, remove the fastener, and lift the cover over the access hole in the front of the wheel house splash shield. Access to the rear of the lamp can be gained through this access hole.

RAM 4500 Chassis Cab (2021) - Outer Park And Turn - 1

natural_image Close-up of a mechanical component with a highlighted rectangular area and a pointer arrow (no text or symbols visible)

Splash Shield Access Cover

  1. Reach through the access hole of the wheel house splash shield and disengage the side marker socket by rotating counterclockwise a quarter turn.

RAM 4500 Chassis Cab (2021) - Outer Park And Turn - 2

natural_image Mechanical component diagram showing internal gears and housing (no text or symbols)

Park And Turn Socket

  1. Pull the socket and bulb straight out from the housing.
  2. Separate the bulb from the socket without twisting.
  3. Reverse the procedure for installation of new bulb and covers.

Fog Lamps — If Equipped

Halogen

See below steps to replace:

  1. Reach under and behind the front fascia/bumper to access the back of the front fog lamp housing.
  2. Disconnect the fog lamp wiring harness connector from the fog lamp bulb.

RAM 4500 Chassis Cab (2021) - Halogen - 1

natural_image Mechanical component diagram showing a valve assembly with no visible text or symbols

A0705000451US

Fog Lamp Bulb

  1. Rotate the bulb counterclockwise a quarter turn to unlock the bulb from the housing.
  2. Pull the bulb straight out from the housing.
  3. Reverse the procedure to install the bulb and cover.

CAUTION!

Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.

Center High Mounted Stop Lamp (CHMSL) With Cargo Lamp

See below steps to replace:

  1. Remove the two screws holding the housing/lens to the body as shown.

RAM 4500 Chassis Cab (2021) - CAUTION! - 1

natural_image Top-down view of a car's front panel with two doors and two handles, no text or symbols visible

CHMSL Mounting Screw Locations

  1. Separate the connector holding the housing and wiring harness to the body.

RAM 4500 Chassis Cab (2021) - CAUTION! - 2

natural_image Technical diagram of a mechanical component with internal components and directional arrows (no text or symbols)

CHMSL Connector Location

  1. Turn the desired bulb socket a quarter turn and remove the socket and bulb from housing.

  2. Pull the desired bulb straight from the socket.

CAUTION!

Do not contaminate the bulb glass by touching it with your fingers or by allowing it to contact other oily surfaces. Shortened bulb life will result.

SERVICING AND MAINTENANCE 405

• Outside Bulbs: Cargo Lamps
• Inside Bulb: Center High Mounted Stop Lamp

  1. Reverse the procedure for installation of bulbs and housing.

Cab Top Clearance Lamps — If Equipped

See below steps to replace:

  1. Remove the two screws from the top of the lamp.

RAM 4500 Chassis Cab (2021) - CAUTION! - 1

natural_image Technical diagram of a door handle with a circular component and a separate curved line detail (no text or symbols)

Removing Rear Screw From Clearance Lamp

  1. Rotate the bulb socket a quarter turn and pull it from the lamp assembly.

RAM 4500 Chassis Cab (2021) - CAUTION! - 2

natural_image Diagram of a car door handle with a cable and connector, no text or symbols present

Removing Bulb Socket From Clearance Lamp

  1. Pull the bulb straight from it's socket and replace.

TIRES

TIRE SAFETY INFORMATION

Tire safety information will cover aspects of the following information: Tire Markings, Tire Identification Numbers, Tire Terminology and Definitions, Tire Pressures, and Tire Loading.

Tire Markings

RAM 4500 Chassis Cab (2021) - Tire Markings - 1

text_image 2 P215/05R15 95H MANUFACTURER TIRE NAME 1 6 0601085396US

Tire Markings

1 - US DOT Safety Standards Code (TIN)
2 - Size Designation
3 — Service Description
4 – Maximum Load
5 – Maximum Pressure
6 — Treadwear, Traction and Temperature Grades

NOTE:

- P (Passenger) — Metric tire sizing is based on US design standards. P-Metric tires have the letter

"P" molded into the sidewall preceding the size designation. Example: P215/65R15 95H.

  • European — Metric tire sizing is based on European design standards. Tires designed to this standard have the tire size molded into the sidewall beginning with the section width. The letter "P" is absent from this tire size designation. Example: 215/65R15 96H.
  • LT (Light Truck) — Metric tire sizing is based on US design standards. The size designation for LT-Metric tires is the same as for P-Metric tires except for the letters "LT" that are molded into the sidewall preceding the size designation. Example: LT235/85R16.
  • Temporary spare tires are designed for temporary emergency use only. Temporary high pressure compact spare tires have the letter "T" or "S" molded into the sidewall preceding the size designation. Example: T145/80D18 103M.
  • High flotation tire sizing is based on US design standards and it begins with the tire diameter molded into the sidewall. Example: 31x10.5 R15 LT.

Tire Sizing Chart

EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on US design standards, or
"...blank..." = Passenger car tire based on European design standards, or
LT = Light truck tire based on US design standards, or
T or S = Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)
• Ratio of section height to section width of tire, or
10.5 = Section width in inches (in)
R = Construction code
• "R" means radial construction, or
• "D" means diagonal or bias construction
15, 16, 18 = Rim diameter in inches (in)
Service Description:
95 = Load Index
• A numerical code associated with the maximum load a tire can carry
H = Speed SymbolA symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditionsThe maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits)
Load Identification:Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:XL = Extra load (or reinforced) tire, orLL = Light load tire orC, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire

Tire Identification Number (TIN)

The TIN may be found on one or both sides of the tire; however, the date code may only be on one side. Tires with white sidewalls will have the full TIN, including the date code, located on the white sidewall side of the tire. Look for the TIN on the outboard side of black sidewall tires as mounted on the vehicle. If the TIN is not found on the outboard side, then you will find it on the inboard side of the tire.

EXAMPLE:
DOT MA L9 ABCD 0301
DOT = Department of TransportationThis symbol certifies that the tire is in compliance with the US Department of Transportation tire safety standards and is approved for highway use
MA = Code representing the tire manufacturing location (two digits)
L9 = Code representing the tire size (two digits)
ABCD = Code used by the tire manufacturer (one to four digits)
03 = Number representing the week in which the tire was manufactured (two digits)03 means the 3rd week
01 = Number representing the year in which the tire was manufactured (two digits)01 means the year 2001Prior to July 2000, tire manufacturers were only required to have one number to represent the year in which the tire was manufactured. Example: 031 could represent the 3rd week of 1981 or 1991

Tire Terminology And Definitions

Term Definition
B-pillarThe vehicle B-pillar is the structural member of the body located behind the front door.
Cold Tire Inflation PressureCold tire inflation pressure is defined as the tire pressure after the vehicle has not been driven for at least three hours, or driven less than 1 mile (1.6 km) after sitting for a minimum of three hours. Inflation pressure is measured in units of PSI (pounds per square inch) or kPa (kilopascals).
Maximum Inflation PressureThe maximum inflation pressure is the maximum permissible cold tire inflation pressure for this tire. The maximum inflation pressure is molded into the sidewall.
Recommended Cold Tire Inflation PressureVehicle manufacturer's recommended cold tire inflation pressure as shown on the tire placard.
Tire PlacardA label permanently attached to the vehicle describing the vehicle's loading capacity, the original equipment tire sizes and the recommended cold tire inflation pressures.

Tire Loading And Tire Pressure

NOTE:

The proper cold tire inflation pressure is listed on the driver's side B-pillar or the rear edge of the driver's side door.

Check the inflation pressure of each tire, including the spare tire (if equipped), at least monthly and inflate to the recommended pressure for your vehicle.

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Close-up of a door panel with an arrow pointing to the lock (no text or symbols visible)

Example Tire Placard Location (Door)

RAM 4500 Chassis Cab (2021) - NOTE: - 2

natural_image Close-up of a car door panel with a black arrow pointing to a clip (no text or symbols visible)

Example Tire Placard Location (B-pillar)

Tire And Loading Information Placard
RAM 4500 Chassis Cab (2021) - NOTE: - 3

text_image TIRE AND LOADING INFORMATION SEATING CAPACITY - TOTAL 5 FRONT 2 REAR 3 THE COMBINED WEIGHT OF OCCUPANTS AND DARGO SHOULD NEVER EXCEED XXX KG OF XXX BLS. TIRE FRONT REAR SPARE ORIGINAL TIRE SIZE P195/70R14 P195/70R14 T125/70D15 COLD TIRE INFLATION PRESSURE 200kPa, 29PSI 200kPa, 29PSI 420kPa, 60PSI SEE OWNER'S MANUAL FOR ADDITIONAL INFORMATION 4N109268

811b6a9a

Tire And Loading Information Placard

This placard tells you important information about the:

  1. Number of people that can be carried in the vehicle.
  2. Total weight your vehicle can carry.
  3. Tire size designed for your vehicle.
  4. Cold tire inflation pressures for the front, rear, and spare tires.

Loading

The vehicle maximum load on the tire must not exceed the load carrying capacity of the tire on your vehicle. You will not exceed the tire's load carrying capacity if you adhere to the loading conditions, tire size, and cold tire inflation pressures specified on the Tire and Loading Information placard → page 199.

NOTE:

Under a maximum loaded vehicle condition, gross axle weight ratings (GAWRs) for the front and rear axles must not be exceeded.

For further information on GAWRs, vehicle loading, and trailer towing, refer to "Vehicle Loading" in the "Starting And Operating" section of this manual.

To determine the maximum loading conditions of your vehicle, locate the statement "The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs" on the Tire and Loading Information placard. The combined weight of occupants, cargo/luggage and trailer tongue weight (if applicable) should never exceed the weight referenced here.

Steps For Determining Correct Load Limit—

(1) Locate the statement "The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs." on your vehicle's placard.
(2) Determine the combined weight of the driver and passengers that will be riding in your vehicle.
(3) Subtract the combined weight of the driver and passengers from XXX kg or XXX lbs.

(4) The resulting figure equals the available amount of cargo and luggage load capacity. For example, if “XXX” amount equals 1400 lbs. and there will be five 150 lb passengers in your vehicle, the amount of available cargo and luggage load capacity is 650 lbs. (1400-750 (5x150) = 650 lbs.)
(5) Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4.
(6) If your vehicle will be towing a trailer, load from your trailer will be transferred to your vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle.

Metric Example For Load Limit

For example, if "XXX" amount equals 635 kg and there will be five 68 kg passengers in your vehicle, the amount of available cargo and luggage load capacity is 295 kg (635-340 (5x68) = 295 kg) as shown in step 4.

NOTE:

  • If your vehicle will be towing a trailer, load from your trailer will be transferred to your vehicle. The following table shows examples on how to calculate total load, cargo/luggage, and towing capacities of your vehicle with varying seating configurations and number and size of occupants. This table is for illustration purposes only and may not be accurate for the seating and load carry capacity of your vehicle.
  • For the following example, the combined weight of occupants and cargo should never exceed 865 lbs (392 kg).

RAM 4500 Chassis Cab (2021) - NOTE: - 1

text_image Occupants TOTAL FRONT REAR Combined weight of occupants and cargo from Tire Placard MINUS Combined Occupant's weight = AVAILABLE Cargo/Luggage and Trailer Tongue Weight EXAMPLE 1 5 2 3 865 lbs minus 670 lbs = 195 lbs EXAMPLE 2 3 2 1 865 lbs minus 540 lbs = 325 lbs EXAMPLE 3 2 2 0 865 lbs minus 400 lbs = 465 lbs Occupant 1: 200 lbs Occupant 2: 130 lbs Occupant 3: 160 lbs Occupant 4: 100 lbs Occupant 5: 80 lbs TOTAL WEIGHT: 570 lbs

B11a4d11

WARNING!

Overloading of your tires is dangerous. Overloading can cause tire failure, affect vehicle handling, and increase your stopping distance. Use tires of the recommended load capacity for your vehicle. Never overload them.

TIRES — GENERAL INFORMATION

Tire Pressure

Proper tire inflation pressure is essential to the safe and satisfactory operation of your vehicle. Four primary areas are affected by improper tire pressure:

  • Safety
  • Fuel Economy
  • Tread Wear
  • Ride Comfort and Vehicle Stability

Safety Both underinflation and overinflation affect the

WARNING!

  • Improperly inflated tires are dangerous and can cause collisions.
  • Underinflation increases tire flexing and can result in overheating and tire failure.
  • Overinflation reduces a tire's ability to cushion shock. Objects on the road and chuckholes can cause damage that result in tire failure.
  • Overinflated or underinflated tires can affect vehicle handling and can fail suddenly, resulting in loss of vehicle control.
  • Unequal tire pressures can cause steering problems. You could lose control of your vehicle.
  • Unequal tire pressures from one side of the vehicle to the other can cause the vehicle to drift to the right or left.
    ● Always drive with each tire inflated to the recommended cold tire inflation pressure.

stability of the vehicle and can produce a feeling of sluggish response or over responsiveness in the steering.

NOTE:

  • Unequal tire pressures from side to side may cause erratic and unpredictable steering response.
  • Unequal tire pressure from side to side may cause the vehicle to drift left or right.

Fuel Economy

Underinflated tires will increase tire rolling resistance resulting in higher fuel consumption.

Tread Wear

Improper cold tire inflation pressures can cause abnormal wear patterns and reduced tread life, resulting in the need for earlier tire replacement.

Ride Comfort And Vehicle Stability

Proper tire inflation contributes to a comfortable ride. Overinflation produces a jarring and uncomfortable ride.

Tire Inflation Pressures

The proper cold tire inflation pressure is listed on the driver's side B-pillar or rear edge of the driver's side door.

At least once a month:

  • Check and adjust tire pressure with a good quality pocket-type pressure gauge. Do not make a visual judgment when determining proper inflation. Tires may look properly inflated even when they are underinflated.
  • Inspect tires for signs of tire wear or visible damage.

CAUTION!

After inspecting or adjusting the tire pressure, always reinstall the valve stem cap. This will prevent moisture and dirt from entering the valve stem, which could damage the valve stem.

Inflation pressures specified on the placard are always "cold tire inflation pressure". Cold tire inflation pressure is defined as the tire pressure after the vehicle has not been driven for at least three hours, or driven less than 1 mile (1.6 km) after sitting for a minimum of three hours. The cold tire inflation pressure must not exceed the maximum inflation pressure molded into the tire sidewall.

Check tire pressures more often if subject to a wide range of outdoor temperatures, as tire pressures vary with temperature changes.

Tire pressures change by approximately 1 psi (7 kPa) per 12°F (7°C) of air temperature change. Keep this in mind when checking tire pressure inside a garage, especially in the Winter.

Example: If garage temperature = 68°F (20°C) and the outside temperature = 32°F (0°C) then the cold tire inflation pressure should be increased by 3 psi (21 kPa), which equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition.

Tire pressure may increase from 2 to 6 psi (13 to 40 kPa) during operation. DO NOT reduce this normal pressure build up or your tire pressure will be too low.

Tire Pressures For High Speed Operation

The manufacturer advocates driving at safe speeds and within posted speed limits. Where speed limits or conditions are such that the vehicle can be driven at high speeds, maintaining correct tire inflation pressure is very important. Increased tire pressure and reduced vehicle loading may be required for high-speed vehicle operation. Refer to an authorized tire dealer or original equipment vehicle dealer for recommended safe operating speeds, loading and cold tire inflation pressures.

WARNING!

High speed driving with your vehicle under maximum load is dangerous. The added strain on your tires could cause them to fail. You could have a serious collision. Do not drive a vehicle loaded to the maximum capacity at continuous speeds above 75 mph (120 km/h).

Radial Ply Tires

WARNING!

Combining radial ply tires with other types of tires on your vehicle will cause your vehicle to handle poorly. The instability could cause a collision. Always use radial ply tires in sets of four. Never combine them with other types of tires.

Tire Repair

If your tire becomes damaged, it may be repaired if it meets the following criteria:

● The tire has not been driven on when flat.
- The damage is only on the tread section of your tire (sidewall damage is not repairable).
- The puncture is no greater than a 14 of an inch (6 mm).

Consult an authorized tire dealer for tire repairs and additional information.

Damaged Run Flat tires, or Run Flat tires that have experienced a loss of pressure should be replaced immediately with another Run Flat tire of identical size and service description (Load Index and Speed Symbol). Replace the tire pressure sensor as well as it is not designed to be reused.

Run Flat Tires — If Equipped

Run Flat tires allow you the capability to drive 50 miles (80 km) at 50 mph (80 km/h) after a rapid loss of inflation pressure. This rapid loss of inflation is referred to as the Run Flat mode. A Run Flat mode occurs when the tire inflation pressure is of/or below 14 psi (96 kPa). Once a Run Flat tire reaches the Run Flat mode it has limited driving capabilities and needs to be replaced immediately. A Run Flat tire is not repairable. When a Run Flat tire is changed after driving with underinflated tire condition, please replace the TPM sensor as it is not designed to be reused when driven under Run Flat mode 14 psi (96 kPa) condition.

NOTE:

TPM Sensor must be replaced after driving the vehicle on a flat tire condition.

It is not recommended driving a vehicle loaded at full capacity or to tow a trailer while a tire is in the Run Flat mode.

See the tire pressure monitoring section for more information.

Tire Spinning

When stuck in mud, sand, snow, or ice conditions, do not spin your vehicle's wheels above 30 mph (48 km/h) or for longer than 30 seconds continuously without stopping.

WARNING!

Fast spinning tires can be dangerous. Forces generated by excessive wheel speeds may cause tire damage or failure. A tire could explode and injure someone. Do not spin your vehicle's wheels faster than 30 mph (48 km/h) for more than 30 seconds continuously when you are stuck, and do not let anyone near a spinning wheel, no matter what the speed.

Tread Wear Indicators

Tread wear indicators are in the original equipment tires to help you in determining when your tires should be replaced.

RAM 4500 Chassis Cab (2021) - Tread Wear Indicators - 1

text_image ① ② Tire Tread A0901800042US

1 - Worn Tire
2 - New Tire

These indicators are molded into the bottom of the tread grooves. They will appear as bands when the tread depth becomes a 1/16 of an inch (1.6 mm). When the tread is worn to the tread wear indicators, the tire should be replaced.

Life Of Tire

The service life of a tire is dependent upon varying factors including, but not limited to:

  • Driving style.
  • Tire pressure - Improper cold tire inflation pressures can cause uneven wear patterns to develop across the tire tread. These abnormal wear patterns will reduce tread life, resulting in the need for earlier tire replacement.
  • Distance driven.
  • Performance tires, tires with a speed rating of V or higher, and Summer tires typically have a reduced tread life. Rotation of these tires per the vehicle scheduled maintenance is highly recommended.

WARNING!

Tires and the spare tire should be replaced after six years, regardless of the remaining tread. Failure to follow this warning can result in sudden tire failure. You could lose control and have a collision resulting in serious injury or death.

NOTE:

Wheel valve stem must be replaced as well when installing new tires due to wear and tear in existing tires.

Keep dismounted tires in a cool, dry place with as little exposure to light as possible. Protect tires from contact with oil, grease, and gasoline.

Replacement Tires

The tires on your new vehicle provide a balance of many characteristics. They should be inspected regularly for wear and correct cold tire inflation pressures. The manufacturer strongly recommends that you use tires equivalent to the originals in size, quality and performance when replacement is needed ➞ page 417. Refer to the Tire and Loading Information placard or the Vehicle Certification Label for the size designation of your tire. The Load Index and Speed Symbol for your tire will be found on the original equipment tire sidewall.

For more information relating to the Load Index and Speed Symbol of a tire ➤ page 406.

It is recommended to replace the two front tires or two rear tires as a pair. Replacing just one tire can seriously affect your vehicle's handling.

If you ever replace a wheel, make sure that the wheel's specifications match those of the original wheels.

It is recommended you contact an authorized tire dealer or original equipment dealer with any questions you may have on tire specifications or capability. Failure to use equivalent replacement tires may adversely affect the safety, handling, and ride of your vehicle.

WARNING!

- Do not use a tire, wheel size, load rating, or speed rating other than that specified for your vehicle. Some combinations of unapproved tires and wheels may change suspension dimensions and performance characteristics, resulting in changes to steering, handling, and braking of your vehicle. This can cause unpredictable handling and stress to steering and suspension components. You could lose control and have a collision resulting in serious injury or death. Use only the tire and wheel sizes with load ratings approved for your vehicle.

(Continued)

WARNING! (Continued)

  • Never use a tire with a smaller load index or capacity, other than what was originally equipped on your vehicle. Using a tire with a smaller load index could result in tire overloading and failure. You could lose control and have a collision.
  • Failure to equip your vehicle with tires having adequate speed capability can result in sudden tire failure and loss of vehicle control.

CAUTION!

Replacing original tires with tires of a different size may result in false speedometer and odometer readings.

TIRE TYPES

All Season Tires — If Equipped

All Season tires provide traction for all seasons (Spring, Summer, Autumn, and Winter). Traction levels may vary between different all season tires. All season tires can be identified by the M+S, M&S, M/S or MS designation on the tire sidewall. Use all season tires only in sets of four; failure to do so may adversely affect the safety and handling of your vehicle.

Summer Or Three Season Tires — If Equipped

Summer tires provide traction in both wet and dry conditions, and are not intended to be driven in snow or on ice. If your vehicle is equipped with Summer tires, be aware these tires are not designed for Winter or cold driving conditions. Install Winter tires on your vehicle when ambient temperatures are less than 40^ F ( 5^ C) or if roads are covered with ice or snow. For more information, contact an authorized dealer.

Summer tires do not contain the all season designation or mountain/snowflake symbol on the tire sidewall. Use Summer tires only in sets of four; failure to do so may adversely affect the safety and handling of your vehicle.

WARNING!

Do not use Summer tires in snow/ice conditions. You could lose vehicle control, resulting in severe injury or death. Driving too fast for conditions also creates the possibility of loss of vehicle control.

Snow Tires

Some areas of the country require the use of snow tires during the Winter. Snow tires can be identified by a “mountain/snowflake” symbol on the tire sidewall.

RAM 4500 Chassis Cab (2021) - Snow Tires - 1

If you need snow tires, select tires equivalent in size and type to the original equipment tires. Use snow tires only in sets of four; failure to do

so may adversely affect the safety and handling of your vehicle.

Snow tires generally have lower speed ratings than what was originally equipped with your vehicle and should not be operated at sustained speeds over 75 mph (120 km/h). For speeds above 75 mph (120 km/h) refer to original equipment or an authorized tire dealer for recommended safe operating speeds, loading and cold tire inflation pressures.

While studded tires improve performance on ice, skid and traction capability on wet or dry surfaces may be poorer than that of non-studded tires. Some states prohibit studded tires; therefore, local laws should be checked before using these tire types.

SPARE TIRES — IF EQUIPPED

CAUTION!

Because of the reduced ground clearance, do not take your vehicle through an automatic car wash with a compact or limited use temporary spare installed. Damage to the vehicle may result.

For restrictions when towing with a spare tire designated for temporary emergency use page 206.

Spare Tire Matching Original Equipped Tire And Wheel — If Equipped

Your vehicle may be equipped with a spare tire and wheel equivalent in look and function to the original equipment tire and wheel found on the front or rear axle of your vehicle. This spare tire may be used in the tire rotation for your vehicle. If your vehicle has this option, refer to an authorized tire dealer for the recommended tire rotation pattern.

Compact Spare Tire — If Equipped

The compact spare is for temporary emergency use only. You can identify if your vehicle is equipped with a compact spare by looking at the spare tire description on the Tire and Loading Information Placard located on the driver's side door opening or on the sidewall of the tire. Compact spare tire descriptions begin with the letter "T" or "S" preceding the size designation. Example: T145/80D18 103M.

T, S = Temporary Spare Tire

Since this tire has limited tread life, the original equipment tire should be repaired (or replaced) and reinstalled on your vehicle at the first opportunity.

Do not install a wheel cover or attempt to mount a conventional tire on the compact spare wheel, since the wheel is designed specifically for the compact spare tire. Do not install more than one compact spare tire and wheel on the vehicle at any given time.

WARNING!

Compact and collapsible spares are for temporary emergency use only. With these spares, do not drive more than 50 mph (80 km/h). Temporary use spares have limited tread life. When the tread is worn to the tread wear indicators, the temporary use spare tire needs to be replaced. Be sure to follow the warnings, which apply to your spare. Failure to do so could result in spare tire failure and loss of vehicle control.

Collapsible Spare Tire — If Equipped

The collapsible spare is for temporary emergency use only. You can identify if your vehicle is equipped with a collapsible spare by looking at the spare tire description on the Tire and Loading Information Placard located on the driver's side door opening or on the sidewall of the tire.

Collapsible spare tire description example: 165/80-17 101P.

Since this tire has limited tread life, the original equipment tire should be repaired (or replaced) and reinstalled on your vehicle at the first opportunity.

Inflate collapsible tire only after the wheel is properly installed to the vehicle. Inflate the collapsible tire using the electric air pump before lowering the vehicle.

Do not install a wheel cover or attempt to mount a conventional tire on the collapsible spare wheel, since the wheel is designed specifically for the collapsible spare tire.

WARNING!

Compact and Collapsible spares are for temporary emergency use only. With these spares, do not drive more than 50 mph (80 km/h). Temporary use spares have limited tread life. When the tread is worn to the tread wear indicators, the temporary use spare tire needs to be replaced. Be sure to follow the warnings, which apply to your spare. Failure to do so could result in spare tire failure and loss of vehicle control.

Full Size Spare — If Equipped

The full size spare is for temporary emergency use only. This tire may look like the originally equipped tire on the front or rear axle of your vehicle, but it is not. This spare tire may have limited tread life. When the tread is worn to the tread wear indicators, the temporary use full size spare tire needs to be replaced. Since it is not the same as your original equipment tire, replace (or repair) the original equipment tire and reinstall on the vehicle at the first opportunity.

Limited Use Spare — If Equipped

The limited use spare tire is for temporary emergency use only. This tire is identified by a label located on the limited use spare wheel. This label contains the driving limitations for this spare. This tire may look like the original equipped tire on the front or rear axle of your vehicle, but it is not. Installation of this limited use spare tire affects vehicle handling. Since it is not the same as your original equipment tire, replace (or repair) the original equipment tire and reinstall on the vehicle at the first opportunity.

WARNING!

Limited use spares are for emergency use only. Installation of this limited use spare tire affects vehicle handling. With this tire, do not drive more than the speed listed on the limited use spare wheel. Keep inflated to the cold tire inflation pressures listed on your Tire and Loading Information Placard located on the driver's side B-pillar or the rear edge of the driver's side door. Replace (or repair) the original equipment tire at the first opportunity and reinstall it on your vehicle. Failure to do so could result in loss of vehicle control.

WHEEL AND WHEEL TRIM CARE

All wheels and wheel trim, especially aluminum and chrome plated wheels, should be cleaned regularly using mild (neutral Ph) soap and water to maintain their luster and to prevent corrosion. Wash wheels with the same soap solution recommended for the body of the vehicle and remember to always wash when the surfaces are not hot to the touch.

Your wheels are susceptible to deterioration caused by salt, sodium chloride, magnesium chloride, calcium chloride, etc., and other road chemicals used to melt ice or control dust on dirt roads. Use a soft cloth or sponge and mild soap to wipe away promptly. Do not use harsh chemicals or a stiff brush. They can damage the wheel's protective coating that helps keep them from corroding and tarnishing.

CAUTION!

Avoid products or automatic car washes that use acidic solutions or strong alkaline additives or harsh brushes. Many aftermarket wheel cleaners and automatic car washes may damage the wheel's protective finish. Such damage is not covered by the New Vehicle Limited Warranty. Only car wash soap, Mopar Wheel Cleaner or equivalent is recommended.

When cleaning extremely dirty wheels including excessive brake dust, care must be taken in the selection of tire and wheel cleaning chemicals and equipment to prevent damage to the wheels. Mopar Wheel Treatment or Mopar Chrome Cleaner or their equivalent is recommended or select a non-abrasive, non-acidic cleaner for aluminum or chrome wheels.

CAUTION!

Do not use scouring pads, steel wool, a bristle brush, metal polishes or oven cleaner. These products may damage the wheel's protective finish. Such damage is not covered by the New Vehicle Limited Warranty. Only car wash soap, Mopar Wheel Cleaner or equivalent is recommended.

NOTE:

If you intend parking or storing your vehicle for an extended period after cleaning the wheels with wheel cleaner, drive your vehicle and apply the brakes to remove the water droplets from

the brake components. This activity will remove the red rust on the brake rotors and prevent vehicle vibration when braking.

Dark Vapor Chrome, Black Satin Chrome, or Low Gloss Clear Coat Wheels

CAUTION!

If your vehicle is equipped with these specialty wheels, DO NOT USE wheel cleaners, abrasives, or polishing compounds. They will permanently damage this finish and such damage is not covered by the New Vehicle Limited Warranty. HAND WASH ONLY USING MILD SOAP AND WATER WITH A SOFT CLOTH. Used on a regular basis; this is all that is required to maintain this finish.

SNOW TRACTION DEVICES

Use of traction devices require sufficient tire-to-body clearance. Due to limited clearance, the following snow traction devices are recommended. Follow these recommendations to guard against damage:

  • Snow traction device must be of proper size for the tire, as recommended by the snow traction device manufacturer.
  • No other tire sizes are recommended for use with the snow traction device.
  • Please follow the table below for the recommended tire size, axle and snow traction device:
3500 SRW CAB CHASSIS Trim LevelAxle Tire/Wheel SizeSnow Traction Device (maximum projection beyond tire profile or equivalent)
4x2Rear LT275/70R18E U Class
4x4
3500 DRW CAB CHASSIS Trim LevelAxle Tire/Wheel SizeSnow Traction Device (maximum projection beyond tire profile or equivalent)
4x2 RearLT235/80R17E U Class
4x4 Front/Rear
4500/5500 DRW CAB CHASSIS Trim LevelAxle Tire/Wheel SizeSnow Traction Device (maximum projection beyond tire profile or equivalent)
4x2Rear 225/70R19.5G U Class
4x4

WARNING!

Using tires of different size and type (M+S, Snow) between front and rear axles can cause unpredictable handling. You could lose control and have a collision.

CAUTION!

To avoid damage to your vehicle or tires, observe the following precautions:

  • Because of restricted traction device clearance between tires and other suspension components, it is important that only traction devices in good condition are used. Broken devices can cause serious damage. Stop the vehicle immediately if noise occurs that could indicate device breakage. Remove the damaged parts of the device before further use.
  • Install device as tightly as possible and then retighten after driving about 0.5 mile (0.8 km). Autosock devices do not require retightening.
  • Do not exceed 30 mph (48 km/h).
  • Drive cautiously and avoid severe turns and large bumps, especially with a loaded vehicle.
  • Do not drive for a prolonged period on dry pavement.

(Continued)

CAUTION! (Continued)

  • Observe the traction device manufacturer's instructions on the method of installation, operating speed, and conditions for use. Always use the suggested operating speed of the device manufacturer's if it is less than 30 mph (48 km/h).
  • Do not use traction devices on a compact spare tire.

TIRE ROTATION RECOMMENDATIONS

Tires on the front and rear axles of vehicles operate at different loads and perform different steering, driving, and braking functions.

For these reasons, they wear at unequal rates.

These effects can be reduced by timely rotation of tires. The benefits of rotation are especially worthwhile with aggressive tread designs such as those on On/Off Road type tires. Rotation will increase tread life, help to maintain mud, snow, and wet traction levels, and contribute to a smooth, quiet ride.

For the proper maintenance intervals ↩ page 354. More frequent rotation is permissible if desired. The reasons for any rapid or unusual wear should be corrected prior to rotation being performed.

RAM 4500 Chassis Cab (2021) - TIRE ROTATION RECOMMENDATIONS - 1

flowchart
graph TD
    A["Top Entity"] --> B["Left Entity"]
    A --> C["Right Entity"]
    D["Bottom Entity"] --> E["Left Entity"]
    D --> F["Right Entity"]
    G["Small Vehicle Icon"] --> A
    G --> D

055703771

Tire Rotation (Rearward Cross)

NOTE:

On Canadian vehicles only, if your vehicle is equipped with All-Season type tires on the front and On/Off Road type tires mounted on the rear, do not use a front to back rotation pattern. Instead, rotate your tires side to side at the recommended intervals.

Dual Rear Wheels
RAM 4500 Chassis Cab (2021) - NOTE: - 1

flowchart
graph TD
    A["Top Left"] <--> B["Bottom Right"]
    C["Top Right"] --> D["Bottom Left"]
    E["Bottom Right"] --> F["Bottom Left"]
    G["Bottom Left"] --> H["Bottom Right"]
    I["Bottom Right"] --> J["Bottom Left"]
    K["Bottom Left"] --> L["Bottom Right"]
    M["Bottom Right"] --> N["Bottom Left"]
    O["Bottom Left"] --> P["Bottom Right"]
    Q["Bottom Right"] --> R["Bottom Left"]
    S["Bottom Left"] --> T["Bottom Right"]
    U["Bottom Right"] --> V["Bottom Left"]
    W["Bottom Left"] --> X["Bottom Right"]
    Y["Bottom Right"] --> Z["Bottom Left"]
    AA["Bottom Left"] --> AB["Bottom Right"]
    AC["Bottom Right"] --> AD["Bottom Left"]
    AE["Bottom Left"] --> AF["Bottom Right"]
    AG["Bottom Right"] --> AH["Bottom Left"]
    AI["Bottom Left"] --> AJ["Bottom Right"]
    AK["Bottom Right"] --> AL["Bottom Left"]

Tire Rotation

The tires used on dual wheel assemblies should be matched for wear to prevent overloading one tire in a set. To check if tires are even, lay a straight edge across all four tires. The straight edge should touch all the tires.

NOTE:

If your vehicle is equipped with a Tire Pressure Information System (TPIS):

- The Tire Pressure Information System (TPIS) uses unique sensors in the inner rear wheels to help identify them from the outer rear wheels, because of this, the inner and outer wheel locations can't be switched.

  • After a tire rotation is completed, as shown below, the system can auto learn the locations of each sensor ID. Auto learning/localization occurs when the vehicle ignition status is changed from Off to On and speeds of greater than 5 mph (8 km/h) are obtained and remain over 5 mph (8 km/h) for at about a 15 minute period. You may need to drive for 20 minutes to account slower speeds and stops.
  • If the tires are rotated incorrectly, the Auto localization of the TPIS sensors will fail to locate correctly resulting in incorrect locations for the pressure values displayed in the Instrument Cluster.

CAUTION!

  • 4500/5500 Dual Rear Tires may only have one approved direction of rotation. This is to accommodate the asymmetrical design (tread pattern) of the On/Off road tire.

(Continued)

CAUTION! (Continued)

  • When replacing a flat, the spare tire may have to be remounted on the rim or installed at a different location to maintain the correct placement of the tire on the wheel relative to the tire/wheel position on the vehicle. For example, if the spare is used to replace an outer rear tire it will have to be remounted on the rim so that the wheel is dished inward. That way the tread design of asymmetrical tires will maintain proper position.

DEPARTMENT OF TRANSPORTATION UNIFORM TIRE QUALITY GRADES

The following tire grading categories were established by the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire's manufacturer in each category is shown on the sidewall of the tires on your vehicle.

All passenger vehicle tires must conform to Federal safety requirements in addition to these grades.

TREADWEAR

The Treadwear grade is a comparative rating, based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and one-half times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices, and differences in road characteristics and climate.

TRACTION GRADES

The Traction grades, from highest to lowest, are AA, A, B, and C. These grades represent the tire's ability to stop on wet pavement, as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.

WARNING!

The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

TEMPERATURE GRADES

The Temperature grades are A (the highest), B, and C, representing the tire's resistance to the generation of heat and its ability to dissipate heat, when tested under controlled conditions on a specified indoor laboratory test wheel.

Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance, which all passenger vehicle tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel, than the minimum required by law.

WARNING!

The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, under-inflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

STORING THE VEHICLE

If you are storing your vehicle for more than three weeks, we recommend that you take the following steps to minimize the drain on your vehicle's battery:

  • Disconnect the negative cable from battery.
  • Any time you store your vehicle or keep it out of service (i.e., vacation) for two weeks or more, run the air conditioning system at idle for about five minutes in the fresh air and high blower setting. This will ensure adequate system lubrication to minimize the possibility of compressor damage when the system is started again.

BODYWORK

PROTECTION FROM ATMOSPHERIC AGENTS

Vehicle body care requirements vary according to geographic locations and usage. Chemicals that make roads passable in snow and ice and those that are sprayed on trees and road surfaces during other seasons are highly corrosive to the metal in your vehicle. Outside parking, which exposes your vehicle to airborne contaminants, road surfaces on which the vehicle is operated, extreme hot or cold weather and other extreme conditions will have an adverse effect on paint, metal trim, and underbody protection.

The following maintenance recommendations will enable you to obtain maximum benefit from the corrosion resistance built into your vehicle.

What Causes Corrosion?

Corrosion is the result of deterioration or removal of paint and protective coatings from your vehicle.

The most common causes are:

  • Road salt, dirt and moisture accumulation.
  • Stone and gravel impact.
    • Insects, tree sap and tar.
  • Salt in the air near seacoast localities.
  • Atmospheric fallout/industrial pollutants.

BODY AND UNDERBODY MAINTENANCE

Cleaning Headlights

Your vehicle is equipped with plastic headlights and fog lights that are lighter and less susceptible to stone breakage than glass headlights.

Plastic is not as scratch resistant as glass and therefore different lens cleaning procedures must be followed.

To minimize the possibility of scratching the lenses and reducing light output, avoid wiping with a dry cloth. To remove road dirt, wash with a mild soap solution followed by rinsing.

Do not use abrasive cleaning components, solvents, steel wool or other aggressive material to clean the lenses.

PRESERVING THE BODYWORK

Washing

  • Wash your vehicle regularly. Always wash your vehicle in the shade using Mopar Car Wash, or a mild car wash soap, and rinse the panels completely with water.
  • If insects, tar, or other similar deposits have accumulated on your vehicle, use Mopar Super Kleen Bug and Tar Remover to remove.
  • Use a high quality cleaner wax, such as Mopar Cleaner Wax to remove road film, stains and to protect your paint finish. Use precautions to not scratch the paint.
  • Avoid using abrasive compounds and power buffing that may diminish the gloss or thin out the paint finish.

CAUTION!

  • Do not use abrasive or strong cleaning materials such as steel wool or scouring powder that will scratch metal and painted surfaces.
  • Use of power washers exceeding 1,200 psi (8,274 kPa) can result in damage or removal of paint and decals.

Special Care

  • If you drive on salted or dusty roads or if you drive near the ocean, hose off the undercarriage at least once a month.
  • It is important that the drain holes in the lower edges of the doors, rocker panels, and trunk be kept clear and open.
  • If you detect any stone chips or scratches in the paint, touch them up immediately.
  • If your vehicle is damaged due to a collision or similar cause that destroys the paint and protective coating, have your vehicle repaired as soon as possible.

  • If you carry special cargo such as chemicals, fertilizers, de-icer salt, etc., be sure that such materials are well packaged and sealed.

  • If a lot of driving is done on gravel roads, consider mud or stone shields behind each wheel.
  • Use Mopar Touch Up Paint on scratches as soon as possible. An authorized dealer has touch up paint to match the color of your vehicle.

INTERIORS

SEATS AND FABRIC PARTS

Use Mopar Total Clean to clean fabric upholstery and carpeting.

WARNING!

Do not use volatile solvents for cleaning purposes. Many are potentially flammable, and if used in closed areas they may cause respiratory harm.

Stain Repel Fabric Cleaning Procedure — If Equipped

Stain Repel seats may be cleaned in the following manner:

  • Remove as much of the stain as possible by blotting with a clean, dry towel.
  • Blot any remaining stain with a clean, damp towel.
  • For tough stains, apply Mopar Total Clean, or a mild soap solution to a clean, damp cloth and remove stain. Use a fresh, damp towel to remove soap residue.
  • For grease stains, apply Mopar Multi-Purpose Cleaner to a clean, damp cloth and remove stain. Use a fresh, damp towel to remove soap residue.
  • Do not use any harsh solvents or any other form of protectants on Stain Repel products.

Seat Belt Maintenance

Do not bleach, dye or clean the belts with chemical solvents or abrasive cleaners. This will weaken the fabric.

If the belts need cleaning, use a mild soap solution or lukewarm water. Do not remove the belts from the vehicle to wash them. Dry with a soft cloth.

Sun damage can also weaken the fabric. Replace the belts if they appear frayed or worn or if the buckles do not work properly.

NOTE:

If the belts retract slowly, inspect the upper turning loop for soiling. If soiling is present, clean with a wet soft cloth until all residue is removed.

WARNING!

A frayed or torn belt could rip apart in a collision and leave you with no protection. Inspect the belt system periodically, checking for cuts, frays, or loose parts. Damaged parts must be replaced immediately. Do not disassemble or modify the system. Seat belt assemblies must be replaced after a collision if they have been damaged (i.e., bent retractor, torn webbing, etc.).

PLASTIC AND COATED PARTS

Use Mopar Total Clean to clean vinyl upholstery.

CAUTION!

  • Direct contact of air fresheners, insect repellents, suntan lotions, or hand sanitizers to the plastic, painted, or decorated surfaces of the interior may cause permanent damage. Wipe away immediately.
  • Damage caused by these type of products may not be covered by your New Vehicle Limited Warranty.

Cleaning Plastic Instrument Cluster Lenses

The lenses in front of the instruments in this vehicle are molded in clear plastic. When cleaning the lenses, care must be taken to avoid scratching the plastic.

Clean with a wet soft cloth. A mild soap solution may be used, but do not use high alcohol content or abrasive cleaners. If soap is used, wipe clean with a clean damp cloth. Dry with a soft cloth.

LEATHER SURFACES

Mopar Total Clean is specifically recommended for leather upholstery.

Your leather upholstery can be best preserved by regular cleaning with a damp soft cloth. Small particles of dirt can act as an abrasive and damage the leather upholstery and should be removed promptly with a damp cloth. Stubborn soils can be removed easily with a soft cloth and Mopar Total Clean. Care should be taken to avoid soaking your leather upholstery with any liquid. Please do not use polishes, oils, cleaning fluids, solvents, detergents, or ammonia-based cleaners to clean your leather upholstery.

NOTE:

If equipped with light colored leather, it tends to show any foreign material, dirt, and fabric dye transfer more so than darker colors. The leather is designed for easy cleaning, and FCA recommends Mopar total care leather cleaner applied on a cloth to clean the leather seats as needed.

CAUTION!

Do not use Alcohol and Alcohol-based and/or Ketone based cleaning products to clean leather upholstery, as damage to the upholstery may result.

GLASS SURFACES

All glass surfaces should be cleaned on a regular basis with Mopar Glass Cleaner, or any commercial household-type glass cleaner.

Never use an abrasive type cleaner. Use caution when cleaning the inside rear window equipped with electric defrosters or windows equipped with radio antennas. Do not use scrapers or other sharp instruments that may scratch the elements.

When cleaning the rear view mirror, spray cleaner on the towel or cloth that you are using. Do not spray cleaner directly on the mirror.

TECHNICAL SPECIFICATIONS

VEHICLE IDENTIFICATION NUMBER (VIN)

The VIN is found on the left front corner of the instrument panel, visible through the windshield.

RAM 4500 Chassis Cab (2021) - VEHICLE IDENTIFICATION NUMBER (VIN) - 1

natural_image Technical line drawing of a car interior component with a black arrow pointing to a detail (no text or symbols present)

Vehicle Identification Number

BRAKE SYSTEM

If power assist is lost for any reason (for example, repeated brake applications with the engine off), the brakes will still function. However, you will experience a substantial increase in braking effort to stop the vehicle.

If either the front or rear hydraulic system loses normal braking capability, the remaining system will still function with some loss of overall braking effectiveness. This will be evident by increased pedal travel during application, greater pedal force required to slow or stop, and activation of the "Brake Warning Light" and/or the "ABS Warning Light" during brake use.

HYDRAULIC BRAKE ASSIST — IF EQUIPPED

The brake system power assist is provided by a hydro-boost unit which shares fluid with the power steering system. You may experience some clicking or hissing noises from the hydro-boost system during hard braking conditions.

NOTE:

Under cold temperatures, pedal effort will be higher than normal until the power steering fluid reaches operating temperature.

NOTE:

It is illegal to remove or alter the VIN.

WHEEL AND TIRE TORQUE SPECIFICATIONS

Proper lug nut/bolt torque is very important to ensure that the wheel is properly mounted to the vehicle. Any time a wheel has been removed and reinstalled on the vehicle, the lug nuts/bolts should be torqued using a properly calibrated torque wrench using a six sided (hex) deep wall socket.

TORQUE SPECIFICATIONS

Lug Nut/Bolt TorqueLug Nut/Bolt Type**Lug Nut/Bolt SizeLug Nut/ Bolt Socket Size
120-150 Ft-Lbs (160-200 N·m)ConeM14 x 1.5022 mm
130-160 Ft-Lbs (190-220 N·m)Flanged

**Use only authorized dealer recommended lug nuts/bolts and clean or remove any dirt or oil before tightening.

Inspect the wheel mounting surface prior to mounting the tire and remove any corrosion or loose particles.

NOTE:

Dual wheels are flat mounted, center piloted. The lug nuts are a two-piece assembly. When the tires are being rotated or replaced, clean these lug nuts and add two drops of oil at the interface between the hex and the washer. Ensure that the socket is fully engaged on the lug nut/bolt (do not insert it half way).

RAM 4500 Chassis Cab (2021) - NOTE: - 1

natural_image Cross-sectional view of a mechanical assembly with a downward arrow indicating force or direction (no text or symbols present)

0322115541US
Oil Interface Location

Do not oil wheel studs. For chrome wheels, do not substitute with chrome plated wheel nuts.

RAM 4500 Chassis Cab (2021) - NOTE: - 2

natural_image Diagram of concentric circular patterns with a black arrow pointing to a central circular feature (no text or symbols)

Wheel Mounting Surface

Retighten the wheel nuts in the same sequence to the torques listed in the table. Go through the sequence a second time to verify that specific torque has been achieved. Retighten to specifications after 25 miles (40 km) and check the lug nut/bolt torque to be sure that all the lug nuts/bolts are properly tightened.

RAM 4500 Chassis Cab (2021) - NOTE: - 3

chemical Diagram of a molecular structure with numbered hexagonal units and plus/minus signs indicating charge distribution

8/10 Lug Nuts/Bolts Torque Patterns

1 - 10 Bolt Pattern
2-8 Bolt Pattern

It is recommended that wheel stud nuts be kept torqued to specifications at all times. Torque wheel stud nuts to specifications at each lubrication interval.

All wheel nuts should be tightened occasionally to eliminate the possibility of wheel studs being sheared or the bolt holes in the wheels becoming elongated. This is especially important during the first few hundred miles/kilometers of operation to allow the wheel nuts to become properly set. All wheel nuts should first be firmly seated against the wheel. The wheel nuts should then be tightened to recommended torque. Tighten the wheel nuts to final torque in increments.

Progress around the bolt circle, tightening the wheel nut opposite to the wheel nut just previously tightened until final torque is achieved.

WARNING!

To avoid the risk of forcing the vehicle off the jack, do not tighten the lug nuts/bolts fully until the vehicle has been lowered. Failure to follow this warning may result in personal injury.

FUEL REQUIREMENTS — GASOLINE ENGINE

While operating on gasoline with the required octane number, hearing a light knocking sound from the engine is not a cause for concern. However, if the engine is heard making a heavy knocking sound, see a dealer immediately. Use of gasoline with a lower than recommended octane number can cause engine failure and may void or not be covered by the New Vehicle Limited Warranty.

Poor quality gasoline can cause problems such as hard starting, stalling, and hesitations. If you experience these symptoms, try another brand of gasoline before considering service for the vehicle.

6.4L ENGINE

Do not use E-85 flex fuel or ethanol blends greater than 15% in this engine.

87

This engine is designed to meet all emissions regulations and provide satisfactory fuel economy and performance when using high quality

unleaded gasoline having a posted octane number of 87 as specified by the (R+M)/2 method.

REFORMULATED GASOLINE

Many areas of the country require the use of cleaner burning gasoline referred to as "reformulated gasoline". Reformulated gasoline contains oxygenates and are specifically blended to reduce vehicle emissions and improve air quality.

The use of reformulated gasoline is recommended. Properly blended reformulated gasoline will provide improved performance and durability of engine and fuel system components.

MATERIALS ADDED TO FUEL

Besides using unleaded gasoline with the proper octane rating, gasolines that contain detergents, corrosion and stability additives are recommended. Using gasolines that have these additives will help improve fuel economy, reduce emissions, and maintain vehicle performance.

RAM 4500 Chassis Cab (2021) - MATERIALS ADDED TO FUEL - 1

Designated TOP TIER Detergent Gasoline contains a higher level of detergents to further aide in minimizing engine and fuel system

deposits. When available, the usage of TOP TIER Detergent Gasoline is recommended. Visit www.toptiergas.com for a list of TOP TIER Detergent Gasoline Retailers.

Indiscriminate use of fuel system cleaning agents should be avoided. Many of these materials intended for gum and varnish removal may contain active solvents or similar ingredients. These can harm fuel system gasket and diaphragm materials.

GASOLINE/OXYGENATE BLENDS

Some fuel suppliers blend unleaded gasoline with oxygenates such as ethanol.

CAUTION!

DO NOT use E-85, gasoline containing methanol, or gasoline containing more than 15% ethanol (E-15). Use of these blends may result in starting and drivability problems, damage critical fuel system components, cause emissions to exceed the applicable standard, and/or cause the Malfunction Indicator Light to illuminate. Please observe pump labels as they should clearly communicate if a fuel contains greater than 15% ethanol (E-15).

Problems that result from using gasoline containing more than 15% ethanol (E-15) or gasoline containing methanol are not the responsibility of the manufacturer and may void or not be covered under New Vehicle Limited Warranty.

Do Not Use E-85 IN NON-FLEX FUEL VEHICLES

Non-Flex Fuel Vehicles (FFV) are compatible with gasoline containing up to 15% ethanol (E-15). Use of gasoline with higher ethanol content may void the New Vehicle Limited Warranty.

If a Non-FFV vehicle is inadvertently fueled with E-85 fuel, the engine will have some or all of these symptoms:

  • Operate in a lean mode.
  • OBD II Malfunction Indicator Light on.
  • Poor engine performance.
    ● Poor cold start and cold drivability.
  • Increased risk for fuel system component corrosion.

CNG AND LP FUEL SYSTEM MODIFICATIONS

Modifications that allow the engine to run on Compressed Natural Gas (CNG) or Liquid Propane (LP) may result in damage to the engine, emissions, and fuel system components. Problems that result from running CNG or LP are not the responsibility of the manufacturer and may void or not be covered under the New Vehicle Limited Warranty.

METHYLCYCLOPENTADIENYL MANGANESE TRICARBONYL (MMT) IN GASOLINE

MMT is a manganese-containing metallic additive that is blended into some gasoline to increase octane. Gasoline blended with MMT provides no performance advantage beyond gasoline of the same octane number without MMT. Gasoline blended with MMT reduces spark plug life and reduces emissions system performance in some vehicles. The manufacturer recommends that gasoline without MMT be used in your vehicle. The MMT content of gasoline may not be indicated on the gasoline pump; therefore, you should ask your gasoline retailer whether the gasoline contains MMT. MMT is prohibited in Federal and California reformulated gasoline.

FUEL SYSTEM CAUTIONS

CAUTION!

Follow these guidelines to maintain your vehicle's performance:

  • The use of leaded gasoline is prohibited by Federal law. Using leaded gasoline can impair engine performance and damage the emissions control system.
  • An out-of-tune engine or certain fuel or ignition malfunctions can cause the catalytic converter to overheat. If you notice a pungent burning odor or some light smoke, your engine may be out of tune or malfunctioning and may require immediate service. Contact an authorized dealer for service assistance.

(Continued)

CAUTION! (Continued)

- The use of fuel additives, which are now being sold as octane enhancers, is not recommended. Most of these products contain high concentrations of methanol. Fuel system damage or vehicle performance problems resulting from the use of such fuels or additives is not the responsibility of the manufacturer and may void or not be covered under the New Vehicle Limited Warranty.

NOTE:

Intentional tampering with the emissions control system can result in civil penalties being assessed against you.

FUEL REQUIREMENTS – DIESEL ENGINE

Use good quality diesel fuel from a reputable supplier in your vehicle. Federal law requires that you must fuel this vehicle with Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sulfur Highway Diesel fuel (500 ppm Sulfur maximum) to avoid damage to the emissions control system.

For most year-round service, Number 2 diesel fuel meeting ASTM (formerly known as the American Society for Testing and Materials) specification D-975 Grade S15 will provide good performance. If the vehicle is exposed to extreme cold (below 20°F or -7°C), or is required to operate at colder-than-normal conditions for prolonged periods, use climatized Number 2 diesel fuel or dilute the Number 2 diesel fuel with 50% Number 1 diesel fuel. This will provide better protection from fuel gelling or wax-plugging of the fuel filters.

WARNING!

Do not use alcohol or gasoline as a fuel blending agent. They can be unstable under certain conditions and hazardous or explosive when mixed with diesel fuel.

Diesel fuel is seldom completely free of water. To prevent fuel system trouble, drain the accumulated water from the fuel/water separator using the fuel/water separator drain provided on both fuel filters. If you buy good quality fuel and follow the cold weather advice above, fuel conditioners should not be required in your vehicle. If available in your area, a high cetane "premium" diesel fuel may offer improved cold-starting and warm-up performance.

CAUTION!

If the "Water in Fuel Indicator Light" remains on, DO NOT START engine before you drain the water from the fuel filter(s) to avoid engine damage ↩ page 375.

FUEL SPECIFICATIONS

The Cummins® Turbo Diesel engine has been developed to take advantage of the high energy content and generally lower cost Number 2 Ultra Low Sulfur diesel fuel or Number 2 Ultra Low Sulfur climatized diesel fuels. Experience has shown that it also operates on Number 1 Ultra Low Sulfur diesel fuels or other fuels within specification.

NOTE:

  • If you accidentally fill the fuel tank with gasoline on your diesel vehicle, Do not start the vehicle. If you restart your vehicle you risk damaging the engine and fuel system. Please call an authorized dealer for service.
  • A maximum blend of 5% biodiesel meeting ASTM specification D-975 may be used with your Cummins diesel engine. (Chassis Cab models not configured with B20 capability).

  • In addition, commercially available fuel additives are not necessary for the proper operation of your Cummins diesel engine. However, if seasonably adjusted fuel is not available and you are operating below 20^ F ( -6^ C), Mopar Premium Diesel Fuel Treatment (or equivalent) may be beneficial to avoid fuel gelling.

  • Number 1 Ultra Low Sulfur diesel fuel should only be used where extended arctic conditions (0°F or -18°C) exist.

BIODIESEL FUEL REQUIREMENTS

Chassis Cab Models

A maximum blend of 5% biodiesel meeting ASTM specification D975 may be used with your Cummins diesel engine. If operation with biodiesel blends greater than 5% but not greater than 20% (B6-B20) is desired, the truck must first be reconfigured by an authorized Ram dealer and the provisions in the following section must be adhered to.

Pickup Models And Chassis Cab Models Ordered With B20 Option

Your vehicle has been validated and approved for the use of biodiesel in blends up to 20% (B20) provided that you comply with the requirements outlined below. It is important that you understand and comply with these requirements. Failure to comply with Oil Change requirements for vehicles operating on biodiesel blends up to B20 will result in premature engine wear. Such wear is not covered by the New Vehicle Limited Warranty.

Biodiesel is a fuel produced from renewable resources typically derived from animal fat, rapeseed oil (Rapeseed Methyl Ester (RME) base), or soybean oil (Soy Methyl Ester (SME or SOME) base). Biodiesel fuel has inherent limitations which require that you understand and adhere to the following requirements if you use blends of biodiesel greater than 5% but not greater than 20% (B6-B20). There are no unique restrictions for the use of B5. Use of blends greater than 20% is not approved. Use of blends greater than 20% can result in engine damage. Such damage is not covered by the New Vehicle Limited Warranty.

Fuel Quality — Must Comply With ASTM Standards

The quality of biodiesel fuel may vary widely. Only fuel produced by a BQ9000 supplier to the following specifications may be blended to meet biodiesel blend (B6–B20) fuel meeting ASTM specification D-7467:

- Petrodiesel fuel meeting ASTM specification D-975 and biodiesel fuel (B100) meeting ASTM specification D-6751.

Fuel Oxidation Stability — Must Use Fuel Within Six Months Of Manufacture

Biodiesel fuel has poor oxidation stability which can result in long term storage problems. Fuel produced to approved ASTM standards, if stored properly, provides for protection against fuel oxidation for up to six months.

Fuel Water Separation — Must Use Mopar/Cummins Approved Fuel Filter Elements

You must use Mopar/Cummins approved fuel filter elements in both your engine mounted filter and frame mounted filter.

Biodiesel fuel has a natural affinity to water and water accelerates microbial growth. Your Mopar/Cummins filtration system is designed to provide adequate fuel water separation capabilities.

Bio-Diesel Fuel Properties — Low Ambient Temperatures

Biodiesel fuel may gel or solidify at low ambient temperatures, which may pose problems for both storage and operation. Precautions can be necessary at low ambient temperatures, such as storing the fuel in a heated building or a heated storage tank, or using cold temperature additives.

Fuel In Oil Dilution — Must Adhere To Required Oil Change Interval

Fuel dilution of lubricating oil has been observed with the use of biodiesel fuel. Fuel in oil must not exceed 5%. To ensure this limit is met your oil change interval must be maintained to the following schedule:

- Ram 3500/4500/5500 Chassis Cab – 12,500 Miles (20,000 km)*

(*unless otherwise notified with a oil service message)

CAUTION!

  • Under no circumstances should oil change intervals exceed 12,500 miles (20,000 km) if operation occurs with greater than 5% biodiesel blends. Oil change intervals should not exceed six months in either case. Failure to comply with these Oil Change requirements for vehicles operating on biodiesel blends up to B20 may result in premature engine wear. Such wear is not covered by the New Vehicle Limited Warranty.
  • B20 Biodiesel capable: The engine may suffer severe damage if operated with concentrations of Biodiesel higher than 20%.

FLUID CAPACITIES

6.4L GASOLINE ENGINE

US Metric
Fuel (Approximate)
Standard Rear Tank 52 Gallons 197 Liters
Optional Midship Tank 22 Gallons 83 Liters
Engine Oil With Filter
6.4L Engine 7 Quarts 6.6 Liters
Cooling System
6.4L Engine 16.6 Quarts 15.7 Liters

6.7L DIESEL ENGINE

US Metric
Fuel (Approximate)
Standard Rear Tank 52 Gallons 197 Liters
Optional Midship Tank 22 Gallons 83 Liters
Diesel Exhaust Fluid Tank (Approximate) 8.7 Gallons 33 Liters
Engine Oil With Filter
6.7L Turbo Diesel Engine 12 Quarts 11.4 Liters

440 TECHNICAL SPECIFICATIONS

US Metric
Cooling System
6.7L Engine Chassis Cab 3500/4500 with AS69RC 22.3 Quarts 21.1 Liters
6.7L Engine Chassis Cab 5500 with AS69RC 22.8 Quarts 21.6 Liters

ENGINE FLUIDS AND LUBRICANTS

6.4L GASOLINE ENGINE

Component Fluid, Lubricant, or Genuine Part
Engine CoolantWe recommend you use Mopar Antifreeze/Coolant 10-Year/150,000 Mile (240,000 km) Formula OAT (Organic Additive Technology).
Engine Oil - 6.4L EngineFor best performance and maximum protection under all types of operating conditions, the manufacturer only recommends full synthetic engine oils that meet the American Petroleum Institute (API) categories of SN. The manufacturer recommends the use of Pennzoil Ultra 0W-40 or equivalent Mopar engine oil meeting the requirements of FCA Material Standard MS-12633 for use in all operating temperatures.
Engine Oil Filter - 6.4L EngineWe recommend you use a Mopar Engine Oil Filter. If a Mopar Engine Oil Filter is unavailable only use filters that meet or exceed SAE/USCAR-36 Filter Performance Requirements.
Fuel Selection - 6.4L Engine 87 Octane (R+M)/2 Method, 0-15% Ethanol (Do not use E-85).

6.7L DIESEL ENGINE

Component Fluid, Lubricant, or Genuine Part
Engine CoolantWe recommend you use Mopar Antifreeze/Coolant 10 Year/150,000 Mile (240,000 km)Formula OAT (Organic Additive Technology).
Engine OilIn ambient temperatures above 0^ (-18°C), we recommend you use 10W-30 engine oil such as Mopar, Shell Rotella and Shell Rimula that meets FCA Material Standard MS-10902 and the API CK-4 engine oil category is required. Products meeting Cummins CES 20081 may also be used. The identification of these engine oils is typically located on the back of the oil container.In ambient temperatures below 0^ (-18°C), we recommend you use 5W-40 synthetic engine oil such as Mopar, Shell Rotella and Shell Rimula that meets FCA Material Standard MS-10902 and the API CK-4 engine oil category is required.
Engine Oil FilterWe recommend you use a Mopar Engine Oil Filter. If a Mopar Engine Oil Filter is unavailable only use filters that meet or exceed SAE/USCAR-36 Filter Performance Requirements.
Fuel FiltersWe recommend you use Mopar Fuel Filter. Must meet 3 micron rating (engine mounted filter). Must meet 5 micron rating (chassis mounted filter). Using a fuel filter that does not meet the manufacturer’s filtration and water separating requirements can severely impact fuel system life and reliability.
Crankcase Ventilation Filter We recommend you useMopar CCV Filter.

442 TECHNICAL SPECIFICATIONS

Component Fluid, Lubricant, or Genuine Part
Fuel SelectionUse good quality diesel fuel from a reputable supplier in your vehicle. Federal law requires that you must fuel this vehicle with Ultra Low Sulfur Highway Diesel fuel (15 ppm Sulfur maximum) and prohibits the use of Low Sulfur Highway Diesel fuel (500 ppm Sulfur maximum) to avoid damage to the emissions control system.For most year-round service, Number 2 diesel fuel meeting ASTM specification D-975 Grade S15 will provide good performance.If climatized or diesel Number 1 ULSD fuel is not available, and you are operating below (20°F/-6°C), in sustained arctic conditions, Mopar Premium Diesel Fuel Treatment (or equivalent) is recommended to avoid gelling.This vehicle is fully compatible with biodiesel blends up to 5% biodiesel meeting ASTM specification D-975. Pickup models, and Chassis Cab models configured with optional B20 capability, are additionally compatible with 20% biodiesel meeting ASTM specification D-7467.
Diesel Exhaust FluidMopar Diesel Exhaust Fluid (API Certified) (DEF) or equivalent that has been API Certified to the ISO 22241 standard. Use of fluids not API Certified to ISO 22241 may result in system damage. You can receive assistance in locating DEF in the United States by calling 866-RAM-INFO (866-726-4636). In Canada call 1-800-465-2001 (English) or 1-800-387-9983 (French).

CAUTION!

- Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant (antifreeze), may result in engine damage and may decrease corrosion protection. Organic Additive Technology (OAT) engine coolant is different and should not be mixed with Hybrid Organic Additive Technology (HOAT) engine coolant (antifreeze) or any “globally compatible” coolant (antifreeze). If a non-OAT engine coolant (antifreeze) is introduced into the cooling system in an emergency, the cooling system will need to be drained, flushed, and refilled with fresh OAT coolant (conforming to MS.90032), by an authorized dealer as soon as possible.

(Continued)

CAUTION! (Continued)

  • Do not use water alone or alcohol-based engine coolant (antifreeze) products. Do not use additional rust inhibitors or antirust products, as they may not be compatible with the radiator engine coolant and may plug the radiator.
  • This vehicle has not been designed for use with propylene glycol-based engine coolant (antifreeze). Use of propylene glycol-based engine coolant (antifreeze) is not recommended.

CHASSIS FLUIDS AND LUBRICANTS

6.4L GASOLINE ENGINE

Component Fluid, Lubricant, or Genuine Part
Automatic Transmission - Eight-SpeedUse only Mopar ZF 8&9 Speed ATF Automatic Transmission Fluid, or equivalent. Failure to use the correct fluid may affect the function or performance of your transmission.
Automatic Transmission - Six-SpeedUse only Mopar ASRC Automatic Transmission Fluid or equivalent. Failure to use the proper fluid may affect the function or performance of your transmission.
Transfer Case We recommend you use Mopar Transfer Case Lubricant for Borg Warner 44-44 and 44-45.
Front and Rear Axle FluidWe recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required for limited slip axles.
Brake Master Cylinder We recommend you use Mopar DOT 3 and SAE J1703.
Power Steering ReservoirWe recommend you use Mopar Power Steering Fluid +4, Mopar ATF+4 Automatic Transmission Fluid.

6.7L DIESEL ENGINE

Component Fluid, Lubricant, or Genuine Part
Automatic TransmissionOnly use Mopar ASRC Automatic Transmission Fluid or equivalent. Failure to use the proper fluid may affect the function or performance of your transmission.
Transfer Case We recommend you use Mopar BW44-44 Transfer Case Fluid.
Front and Rear Axle FluidWe recommend you use SAE 75W-85 HD Ram GL-5 Synthetic Axle Lubricant. Limited slip additive is required for limited slip axles.
Brake Master Cylinder We recommend you use Mopar DOT 3 and SAE J1703.

CUSTOMER ASSISTANCE

SUGGESTIONS FOR OBTAINING SERVICE FOR YOUR VEHICLE

PREPARE FOR THE APPOINTMENT

All work to be performed may not be covered by the warranty. Discuss additional charges with the service manager. Keep a maintenance log of your vehicle's service history. This can often provide a clue to the current problem.

PREPARE A LIST

Make a written list of your vehicle's problems or the specific work you want done. If you've had an accident or work done that is not on your maintenance log, let the service advisor know.

BE REASONABLE WITH REQUESTS

If you list a number of items and you must have your vehicle by the end of the day, discuss the situation with the service advisor and list the items in order of priority. At many authorized dealers, you may obtain a rental vehicle (additional charges may apply). If you need a rental, it is advisable to make these arrangements when you call for an appointment.

IF YOU NEED ASSISTANCE

FCA US LLC and its authorized dealers are vitally interested in your satisfaction. We want you to be happy with our products and services.

Warranty service must be done by an authorized dealer. We strongly recommend that you take the vehicle to an authorized dealer. They know your vehicle the best, and are most concerned that you get prompt and high quality service. FCA US LLC's authorized dealers have the facilities, factory-trained technicians, special tools, and the latest information to ensure the vehicle is fixed correctly and in a timely manner.

This is why you should always talk to an authorized dealer's service manager first. If for some reason you are still not satisfied, talk to the general manager or owner of the authorized dealer. They want to know if you need assistance. If an authorized dealer is unable to resolve the concern, you may contact the FCA US LLC's Customer Assistance center.

Any communication to FCA US LLC's customer center should include the following information:

  • Owner's name and address
  • Owner's telephone number (home, mobile, and office)
  • Authorized dealer name
    • Vehicle Identification Number (VIN)
    • Vehicle delivery date and mileage

FCA US LLC C USTOMER CENTER

P.O. Box 21-8004

Auburn Hills, MI 48321-8004

Phone: (866) 726-4636

FCA CANADA INC. CUSTOMER CENTER

P.O. Box 1621

Windsor, Ontario N9A 4H6

Phone: (800) 465-2001 English /

(800) 387-9983 French

MEXICO

In Mexico City: 800-505-1300

Outside Mexico City: +(52)55 50817568

PUERTO RICO AND US VIRGIN ISLANDS

FCA Caribbean LLC

P.O. Box 191857

San Juan 00919-1857

Phone: (866) 726-4636

Fax: (787) 782-3345

CUSTOMER ASSISTANCE FOR THE HEARING OR SPEECH IMPAIRED (TDD/TTY)

To assist customers who have hearing difficulties, FCA US LLC has installed special TDD (Telecommunication Devices for the Deaf) equipment at its customer center. Any hearing or speech impaired customer, who has access to a TDD or a conventional teletypewriter (TTY) in the United States, can communicate with the FCA US LLC by dialing 1-800-380-2479.

Canadian residents with hearing difficulties that require assistance can use the special needs relay service offered by Bell Canada. For TTY teletypewriter users, dial 711 and for Voice callers, dial 1-800-855-0511 to connect with a Bell Relay Service operator.

SERVICE CONTRACT

You may have purchased a service contract for a vehicle to help protect you from the high cost of unexpected repairs after FCA US LLC's New Vehicle Limited Warranty expires. The Mopar Vehicle Protection plans are the ONLY vehicle extended protection plans authorized, endorsed and backed by FCA US LLC to provide additional protection beyond your vehicle's warranty. If you purchased a Mopar Vehicle Protection Plan, you will receive Plan Provisions and an Owner Identification Card in the mail within three weeks of the vehicle delivery date. If you have any questions about the service contract, call the FCA US LLC's Service Contract National Customer Hotline at 1-800-521-9922 (Canadian residents, call (800) 465-2001 English / (800) 387-9983 French).

FCA US LLC is not responsible for any service contract you may have purchased from another manufacturer. If you require service after the FCA US LLC New Vehicle Limited Warranty expires, please refer to the contract documents, and contact the person listed in those documents.

We appreciate that you have made a major investment when you purchased the vehicle. An authorized dealer has also made a major investment in facilities, tools, and training to assure that you are absolutely delighted with the ownership experience.

WARNING!

Engine exhaust (internal combustion engines only), some of its constituents, and certain vehicle components contain, or emit, chemicals known to the State of California to cause cancer and birth defects, or other reproductive harm. In addition, certain fluids contained in vehicles and certain products of component wear contain, or emit, chemicals known to the State of California to cause cancer and birth defects, or other reproductive harm.

WARRANTY INFORMATION

See the Warranty Information for the terms and provisions of FCA US LLC warranties applicable to this vehicle and market. Refer to www.mopar.com/om for further information.

Use this QR code to access your digital experience.

RAM 4500 Chassis Cab (2021) - WARRANTY INFORMATION - 1

MOPAR PARTS

Mopar original equipment parts & accessories and factory filled fluids are available from an authorized dealer. They are recommended for your vehicle to keep it operating at its best and maintain its original condition.

REPORTING SAFETY DEFECTS

IN THE 50 UNITED STATES AND WASHINGTON, D.C.

If you believe that your vehicle has a defect that could cause a crash or cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying FCA US LLC.

If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, an authorized dealer or FCA US LLC.

To contact NHTSA, you may call the Vehicle Safety Hotline toll free at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov; or write to: Administrator, NHTSA, 1200 New Jersey Avenue, SE., West Building, Washington, D.C. 20590. You can also obtain other information about motor vehicle safety from http://www.safercar.gov.

IN CANADA

If you believe that your vehicle has a safety defect, you should contact the Customer Service Department immediately. Canadian customers who wish to report a safety defect to the Canadian government should contact Transport Canada, Motor Vehicle Defect Investigations and Recalls at 1-800-333-0510 or go to wwwapps.tc.gc.ca/Saf-Sec-Sur/7/PCDB-BDPP.

PUBLICATION ORDER FORMS

To order the following manuals, you may use either the website or the phone numbers listed below.

Service Manuals

These comprehensive Service Manuals provide a complete working knowledge of the vehicle, system, and/or components and is written in straightforward language with illustrations, diagrams, and charts.

Diagnostic Procedure Manuals

Diagnostic Procedure Manuals are filled with diagrams, charts and detailed illustrations. These manuals make it easy to find and fix problems on computer-controlled vehicle systems and features. They show exactly how to find and correct problems, using step-by-step troubleshooting and drivability procedures, proven diagnostic tests and a complete list of all tools and equipment.

Owner's Manuals

These Owner's Manuals have been prepared with the assistance of service and engineering specialists to acquaint you with specific FCA US LLC vehicles.

To access your Owner's Information online, visit www.mopar.com/om

To order a hard copy of your Owner's Information, visit:

• www.techauthority.com (US)

Or

Call Tech Authority toll free at:

• 1-800-890-4038 (US)

• 1-800-387-1143 (Canada)

GENERAL INFORMATION

The following regulatory statement applies to all Radio Frequency (RF) devices equipped in this vehicle:

This device complies with Part 15 of the FCC Rules and with Innovation, Science and Economic Development Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:

  1. This device may not cause harmful interference, and
  2. This device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

INDEX

Pair (Link) Uconnect Phone To A Mobile

Phone 260

WARRANTY INFORMATION 447

A

Adaptive Cruise Control (ACC)

(Cruise Control).... 164, 166

Adding Engine Coolant (Antifreeze) ......384

Adding Fuel 196

Additives, Fuel 434

Adjust

Down....35

Forward 35

Rearward.... 35

Up.... 35

Adjustable Pedals 40

Advance Phone Connectivity 266

Air Bag

Air Bag Operation 305

Air Bag Warning Light 303

Enhanced Accident Response ..... 310, 352

Event Data Recorder (EDR) 352

If Deployment Occurs ....309

Knee Impact Bolsters ....305

Maintaining Your Air Bag System ....311

Maintenance 311

Redundant Air Bag Warning Light 303

Transporting Pets 330

Air Bag Light....107, 303, 331

Air Cleaner, Engine (Engine Air Cleaner

Filter) 369, 391

Air Conditioner Maintenance 371

Air Conditioner Refrigerant 371, 372

Air Conditioner System 371

Air Conditioning 62

Air Conditioning Filter 65

Air Conditioning System 64

Air Conditioning, Operating Tips ......65

Air Filter 369

Air Pressure

Tires 415

Alarm

Security Alarm 23,108

Alterations/Modifications

Vehicle....10

Antifreeze (Engine Coolant) 384

Capacities.... 439

Disposal 385

Anti-Lock Brake System (ABS) 273

Anti-Lock Warning Light 113

Assist, Hill Start 280

Audio Settings 253

Audio Systems (Radio) 220

Auto Down Power Windows 77

Automatic Door Locks 28

Automatic Headlights 52

Automatic Temperature Control (ATC) 64

Automatic Transmission 141, 389

Adding Fluid 389

Fluid And Filter Change 389

Fluid Change 389

Fluid Level Check 387, 388

Fluid Type 390,444

Shifting 146

Special Additives 387

Automatic Transmission Limp Home Mode ... 145

AutoPark 120

AUX Camera 188, 194

Auxiliary Driving Systems 281

Axle Fluid....390, 391, 444

Axle Lubrication 390, 391

B

Back-Up.... 186

Back-Up Camera 186

Battery 108,366

Blanket 130

Charging System Light 108

Keyless Key Fob Replacement .....16

Battery Saver Feature 54

Belts, Seat 330

Bluetooth

Connecting To A Particular Mobile Phone Or Audio Device After Pairing....262

Body Builders Guide 10

Body Mechanism Lubrication ....380

B-Pillar Location 411

Brake Assist System 274

Brake Control System 274

Brake Fluid 387,444

Brake System 387,431

Fluid Check 387
Master Cylinder 387
Parking 137
Warning Light 107

Brake/Transmission Interlock ....141

Bulb Replacement 401

Bulbs, Light 332, 401

C

Cab Top Clearance Lights 405

Camera 186

Camera, AUX.... 188 , 194

Camera, Rear 186, 189

Capacities, Antifreeze (Engine Coolant) .....439

Capacities, Fluid ....439

Caps, Filler

Oil (Engine) 364

Power Steering 163

Radiator (Coolant Pressure) 385

Car Washes.... 428

Carbon Monoxide Warning 333

Cargo Light....54

CD.... 255

Cellular Phone 269

Center High Mounted Stop Light 405

Center Seat Storage Compartment ......67

Changing A Flat Tire 339

Charge Air Cooler 386

Chart, Tire Sizing 407

Check Engine Light (Malfunction

Indicator Light) 117

Checking Your Vehicle For Safety 330

Checks, Safety 330

Child Restraint 312

Child Restraints Booster Seats .... 315

Child Seat Installation 323, 325

How To Stow An unused ALR Seat Belt .... 322

Infant And Child Restraints 313

Locating The LATCH Anchorages .... 320

Lower Anchors And Tethers For Children .. 317

Older Children And Child Restraints ...... 314

Seating Positions 316

Clean Air Gasoline 433

Cleaning Wheels 421

Climate Control ....58

Automatic 59

Manual 62

Cold Weather Operation 122

Compact Spare Tire 419

Contract, Service 446

Controls 247

Cooling Pressure Cap (Radiator Cap) 385

Cooling System 383

Adding Coolant (Antifreeze) 384

Coolant Level 384,386

Cooling Capacity 439

Disposal Of Used Coolant 385

Drain, Flush, And Refill 384

Inspection 386

Points To Remember 386

Pressure Cap 385

Radiator Cap 385

Selection Of Coolant (Antifreeze) .....384, 440

Corrosion Protection 427

Cruise Control (Speed Control) 164, 166

Cruise Light 115

Customer Assistance 445

Cybersecurity 220

D

Daytime Running Lights....51

Dealer Service 367

Defroster, Rear Window ....62

Defroster, Windshield 62, 331

Delay (Intermittent) Wipers ....57

Deleting A Phone 262

Diagnostic System, Onboard 116

Diesel Exhaust Brake 138

Diesel Fuel 436

Diesel Fuel Requirements ....436

Diesel Fuel System, Re-Priming 378

Differential, Limited Slip 162

Dipsticks

Power Steering 163

Disabled Vehicle Towing 350

Disc Drive 255

Disconnecting 262

Disposal

Antifreeze (Engine Coolant) 385

Disturb....265

Door Ajar....110

Door Ajar Light 110

Door Locks

Automatic 28

Doors 24

Draining Fuel/Water Separator Filter ......375

Driver Memory Presets 253

Driver's Seat Back Tilt 33

Driving

Through Flowing, Rising, Or Shallow Standing Water 218

Dual Rear Wheels 342, 425, 432

E

Electric Brake Control System 274

Anti-Lock Brake System 273

Electronic Roll Mitigation 275, 281

Electrical Power Outlets 73

Electronic Range Select (ERS) 145, 150

Electronic Stability Control (ESC) 275

Electronic Throttle Control Warning Light ..... 109

Electronically Shifted Transfer Case .... 153, 156

Emergency Braking 137

Emergency, In Case Of

Freeing Vehicle When Stuck 349

Hazard Warning Flasher 334

Jacking 339

Jump Starting 344

Emission Control System Maintenance ..... 117

Engine.... 364, 365

Air Cleaner 369

Block Heater 125

Break-In Recommendations ..... 136 , 137

Compartment 365

Compartment Identification 364

Coolant (Antifreeze) 440

Exhaust Gas Caution 333

Fails To Start 121

Flooded, Starting 121

Fuel Requirements 433

Identification 365

Idling 131

Jump Starting 344

Oil 368,440

Oil Filler Cap 364

Oil Filter 369

Oil Reset 91

Oil Selection.... 368

Oil Synthetic 368

Overheating 346

Runaway 195

Starting 119

Enhanced Accident Response

Feature 310,352

Entry System, Illuminated 56

Ethanol.... 434

Exhaust Brake 138

Exhaust Gas Cautions 333

Exhaust System 333, 382, 391

Exterior Lighting 50

Exterior Lights 50,332

F

Filters

Air Cleaner 369

Air Conditioning 65,372

Engine Fuel 375,440

Engine Oil 369,440

Engine Oil Disposal 369

Flashers

Turn Signals.... 54,115,332

Flash-To-Pass 52

Flat Tire Stowage 343

Fluid Capacities 439

Fluid Leaks.... 332

Fluid Level Checks

Brake 387

Power Steering 163

Fog Lights 53,404

Fold Flat Load Floor 70

Fold-Flat Seats 33

Forward Collision Warning ....281

Four Wheel Drive ....153

Four-Way Hazard Flasher 334

Freeing A Stuck Vehicle 349

Front Axle (Differential) 390

Fuel 196,433,436

Adding 195

Additives 434

Clean Air 433

Diesel 196,436

Ethanol 434

Filler Cap (Gas Cap) 196

Filter 375,440

Gasoline 433

Light 111

Materials Added 434

Methanol 434

Octane Rating 433

Requirements 433, 436

Specifications 436

Tank Capacity 439

Fuses 394

G

Garage Door Opener (HomeLink) 47

Gas Cap (Fuel Filler Cap) 196

Gasoline, Clean Air 433

Gasoline, Reformulated 433

Gauges

Voltage 128

Gear Ranges 147

Gear Selector Override 347

Glass Cleaning 430

Gross Axle Weight Rating 201

Gross Vehicle Weight Rating 201

Guide

Body Builders 10

GVWR.... 199

H

Hazard

Driving Through Flowing, Rising, Or Shallow Standing Water 218

Hazard Warning Flashers 334

Head Restraints ....38

Head Rests 38

Headlights 402

Automatic High Beam 52

Cleaning 427

High Beam 51

Lights On Reminder 53

Passing 52

Switch....50

Heated Mirrors 46

Heated Seats ....37

Hill Descent Control 278

Hill Descent Control Indicator 278

Hill Start Assist 280

Hitches

Trailer Towing 204

HomeLink (Garage Door Opener) 47

Hood Prop 79

Hood Release 79

Hub Caps 343

|

Idle-Up Feature 132

Ignition 18

Switch 18

Illuminated Entry 56

Inside Rearview Mirror 41, 42, 335

Instrument Cluster 85, 86, 88, 89

Descriptions.... 115

Display 90

Engine Oil Reset 91

Instrument Panel Lens Cleaning 429

Integrated Trailer Brake Control 207

Interior Appearance Care 428

Interior Lights ....55

Intermittent Wipers (Delay Wipers) ....57

Intervention Regeneration Strategy ..... 101, 379

Inverter Outlet (115V) 74

J Jack Location....339
Jack Operation 339
Jacking And Tire Changing 339
Jump Starting 344

K Key Fob Programming Additional Key Fobs .... 17

Key Fob Battery Service (Remote Keyless Entry)....16

Key Fob Programming (Remote Keyless Entry)....17

Keyless Enter-N-Go ....26, 118, 123 Passive Entry ....26

Keys.... 15

L Lane Change And Turn Signals.... 54

Lane Change Assist 54

LaneSense ....183

Latches....332 Hood....79

Lead Free Gasoline 433

Leaks, Fluid ....332

Life Of Tires 417

Light Bulbs.... 332,401

Lights 332
Air Bag....107,303,331
Automatic High Beam 52
Brake Assist Warning 277
Brake Warning 107
Bulb Replacement 401
Cab Top Clearance 405
Cargo 54
Center Mounted Stop 405
Courtesy/Reading 55
Cruise 115
Daytime Running 51
Electronic Stability Program(ESP) Indicator 108
Exterior 50,332
Fog 404
Four Wheel Drive Indicator 162
Hazard Warning Flasher 334
Headlights 50,52
High Beam 51
Hill Descent Control Indicator 278
Illuminated Entry 56
Interior....55
Lights On Reminder 53
Low Fuel 111
Malfunction Indicator (Check Engine) ..... 110
Park 115
Passing 52

Seat Belt Reminder 107

Security Alarm 108

Service.... 401

Traction Control 277

Transfer Case 162

Turn Signals....54, 115, 332, 402

Warning Instrument Cluster Descriptions....108, 115

Limited-Slip Differential 162,391

Load Shed Battery Saver Mode 105

Load Shed Battery Saver On 105

Load Shed Electrical Load Reduction ..... 105

Load Shed Intelligent Battery Sensor 105

Loading Vehicle 199

Tires.... 411

Locks Automatic Door ....28

Child Protection 28

Power Door 25

Low Tire Pressure System 284

Lubrication, Body 380

Lug Nuts/Bolts 342,432

M Maintenance Free Battery 366

Maintenance Plan 359

Maintenance Schedule 353, 357, 359

Malfunction Indicator Light (Check Engine) .. 110

Manual

Park Release....348

Service 448

Media Hub 72

Media Mode 255

Memory Seat 32

Memory Settings 32

Methanol 434

Mirrors 41

Electric Powered 44

Heated 46

Memory 32

Outside.... 44

Rearview 41, 42, 335

Trailer Towing 46

Modifications/Alterations

Vehicle 10

Monitor, Tire Pressure System 284

Mopar Parts 447

MP3 Control 72

Multi-Function Control Lever 51

N

Navigation System (Uconnect GPS)....186

New Vehicle Break-In Period 136, 137

Noise Control

Maintenance....391

Tampering Prohibited 392

Noise Emission Warranty 391, 392

0

Occupant Restraints 292

Octane Rating, Gasoline (Fuel) 433

Oil Change Indicator 357

Oil Filter, Change 369

Oil Filter, Selection 369

Oil Pressure Light 108

Oil Reset 91

Oil, Engine 368, 440

Capacity.... 439

Dipstick 366

Disposal 369

Filter 369,440

Filter Disposal 369

Identification Logo 368

Materials Added To 368

Pressure Warning Light 108

Recommendation 368

Synthetic 368

Onboard Diagnostic System 116

Operating Precautions 116

Operator Manual

Owner's Manual 448

Outside Rearview Mirrors 44

Overdrive 151

Overdrive OFF Switch 151

Overheating, Engine 346

P

Paint Care 427

Pair (Link) Uconnect Phone To A Mobile

Phone 260

Parking Brake 137

ParkSense System, Rear 177

Passive Entry....26

Pedals, Adjustable 40

Pets.... 330

Phone Mode 258

Placard, Tire And Loading Information ..... 411

Power

Distribution Center (Fuses) 395

Door Locks....25

Mirrors 44

Outlet (Auxiliary Electrical Outlet) .....73, 74

Seats 35

Sliding Rear Window 78

Steering 44,163

Take-Off Adapter 163

Take-Off Operation 163

Windows 76

Power Seats

Down 35

Forward 35

Rearward 35

Recline....35

Tilt....35

Up 35

Power Steering Fluid....444

Pregnant Women And Seat Belts ....300

Preparation For Jacking 339

Presets 253

PTO (Power Take-Off) 163

R

Radial Ply Tires....416

Radiator Cap (Coolant Pressure Cap) .. 384, 385

Radio Presets 253

Radio Controls 247

Radio Mode 247

Radio Operation 247, 269

Radio Remote Controls 247

Rain Sensitive Wiper System 58

Rear Axle (Differential) 390, 391

Rear Camera 189

Rear ParkSense System 177

Rear Window, Sliding 78

Recreational Towing 214

Shifting Into Transfer Case Neutral (N) .....216

Shifting Out Of Transfer Case Neutral (N) ..217

Reformulated Gasoline 433

Refrigerant 372

Release, Hood 79

Reminder, Seat Belt 294

Remote Keyless Entry 15

Programming Additional Key Fobs ...... 17

Remote Sound System (Radio) Control .....247

Remote Start (Diesel) 22

Remote Start (Gasoline) 20

Remote Starting Exit Remote Start Mode ....21

Replacement Bulbs 401

Replacement Tires 417

Reporting Safety Defects 447

Resetting Perform Service Indicator 358

Restraints, Child 312

Restraints, Head 38

Rotation, Tires 424

s

Safety 246

Safety Checks Inside Vehicle 330

Safety Checks Outside Vehicle 332

Safety Defects, Reporting 447

Safety Features 246

Safety Information, Tire 406

Safety Tips 330

Safety, Exhaust Gas 333

Satellite Radio 249

Saved Radio Stations 253

Schedule, Maintenance 353

Seat Belt

Automatic Locking Retractor (ALR) 301

Seat Belt Reminder 107

Seat Belts 293,330

Adjustable Shoulder Belt 297

Adjustable Upper Shoulder Anchorage ..... 297

Adjustable Upper Shoulder Belt Anchorage....297

Child Restraints 312

Extender 299

Front Seat 293, 296

Inspection 330

Lap/Shoulder Belt Operation 296

Lap/Shoulder Belt Untwisting 297

Operating Instructions 296

Pregnant Women 300

Reminder 294

Seat Belt Extender 299

Seat Belt Reminder 294

Untwisting Procedure 297

Seat Belts Maintenance 429

Seats....33, 34, 35

Adjustment 33, 35

Easy Entry 36

Folding Floor 70

Head Restraints ....38

Memory 32

Power....35

Rear Folding 33

Tilting 33

Security Alarm 23,108

Selection Of Coolant (Antifreeze) 440

Sentry Key (Immobilizer) 17

Service Assistance 445

Service Contract 446

Service Manuals....448

Settings, Audio 253

Shift Lever Override 347

Shifting 140

Automatic Transmission 141, 146

Transfer Case 161

Transfer Case, Shifting Into Transfer Case Neutral (N) 216

Transfer Case, Shifting Out Of Transfer Case Neutral (N) 217

Signals, Turn 54, 115, 332

Sirius Satellite Radio 249

Favorites 252

Replay 251

SiriusXM Satellite Radio Browse in SXM 252

Favorites 252

Replay 251

Sliding Rear Window, Power 78

Snow Chains (Tire Chains) 422

Snow Plow 212

Snow Tires 419

Spare Tires 419, 420, 421

Spark Plugs 440

Speed Control Accel/Decel....165

Cancel 165

Resume 165

Speed Control (Cruise Control) ..... 164, 166

Starting 118, 119, 122

Automatic Transmission 118, 123

Button 18

Cold Weather 122

Engine Block Heater 125

Engine Fails To Start 121

Starting And Operating 119

Starting Procedures 119, 122

Starting Procedures (Diesel Engines) ...... 122

Starting Procedures (Gas Engines) 118

Steering Power 163

Tilt Column 29

Wheel, Heated 29

Wheel, Tilt....29

Steering Wheel Audio Controls 247

Steering Wheel Mounted Sound System ..... 247

Storage 66

Storage Compartment, Center Seat ......67

Storage, Vehicle 65, 427

Store Radio Presets 253

Storing Your Vehicle 427

Sunglasses Storage 69

Sway Control, Trailer 281

Synthetic Engine Oil 368

T

Telescoping Steering Column 29

Temperature Control, Automatic (ATC) ......64

Tilt

Down 35

Up 35

Tilt Steering Column 29

Tip Start 118, 123

Tire And Loading Information Placard ..... 411

Tire Markings 406

Tire Safety Information 406

Tires 332,414,419,425

Aging (Life Of Tires) 417

Air Pressure 414

Chains 422

Changing 339

Compact Spare 419

Dual 342, 425, 432

General Information 414, 419

High Speed 415

Inflation Pressure 415

Jacking.... 339

Life Of Tires 417

Load Capacity 411

Pressure Monitoring System (TPMS)....111, 284

Quality Grading 425

Radial 416

Replacement 417

Rotation 424
Safety 406,414
Sizes....407
Snow Tires 419
Spare Tires 419, 420, 421
Spinning 416
Trailer Towing 206
Tread Wear Indicators 417
Wheel Nut Torque 432
To Open Hood 79
Tongue Weight/Trailer Weight 205
Torque Converter Clutch 151
Towing 200,350
Disabled Vehicle 350
Guide....205
Recreational 214
Weight 205
Towing Behind A Motorhome ....214
Traction 218
Traction Control 281
Trailer Sway Control (TSC) 281
Trailer Towing 200
Hitches 204
Minimum Requirements 205
Mirrors.... 46
Tips 211
Trailer And Tongue Weight 205
Wiring 209
Trailer Towing Guide 205
Trailer Weight 205

Transfer Case 391
Electronically Shifted 153, 156
Fluid 444
Transmission 141
Automatic 141, 146, 387
Fluid 444
Maintenance 387
Shifting 140
Transporting Pets 330
Tread Wear Indicators 417
Turn Signals 54, 115, 402

U

Uconnect

Phone Call Features 264

Things You Should Know About Your Uconnect Phone 267

Uconnect Phone 259,260

Answer Or Ignore An Incoming Call — Call Currently In Progress.... 265

Answer Or Ignore An Incoming Call — No Call Currently In Progress.... 265

Bluetooth Communication Link 269

Call Continuation 266

Call Controls 264

Call Termination 266

Cancel Command 260

Connecting To A Particular Mobile Phone Or Audio Device After Pairing .... 262

Help Command 260
Join Calls 266
Making A Phone Or Audio Device A Favorite 262
Making A Second Call While Current Call Is In Progress.... 266
Managing Your Favorites 263
Natural Speech 259
Operation 259
Overview 258
Pair (Link) Uconnect Phone To A Mobile Phone 260
Phonebook Download 263
Place/Retrieve A Call From Hold 266
Power-Up 269
Recent Calls.... 264
Redial 266
To Remove A Favorite 263
Toggling Between Calls 266
Touch-Tone Number Entry 264
Transfer Call To And From Mobile Phone .. 266
Voice Command 267
Uconnect Settings
Customer Programmable Features ......26
Passive Entry Programming ......26
Uconnect System 244
Uniform Tire Quality Grades 425
Unleaded Gasoline 433
Untwisting Procedure, Seat Belt 297
USB 72

v

Vehicle Identification Number (VIN)......431

Vehicle Loading 199,411

Vehicle Maintenance ....367

Vehicle Modifications/Alterations 10

Vehicle Storage 65,427

Ventilated Seats 37

Voice Command 30

Voice Recognition System (VR) 30

Voltmeter 128

w

Warning Lights (Instrument Cluster

Descriptions).... 111

Warranty Information 447

WARRANTY INFORMATION 447

Washers, Windshield 57, 366

Washing Vehicle 428

Water

Driving Through 218

Water Separator

Diesel Fuel 375

Wheel And Wheel Tire Care 421

Wheel And Wheel Tire Trim 421

Wheel Covers 343

Wind Buffeting 78

Window Fogging 65

Windows 76

Power....76

Rear Sliding 78

Reset Auto-Up 77

Windshield Defroster 331

Windshield Washers 56, 57, 366

Fluid....57,366

Windshield Wiper Blades 380

Windshield Wipers 56, 57

Wipers Blade Replacement 380

Wipers, Intermittent ....57

Wipers, Rain Sensitive ....58

Wireless Charging Pad 76

The driver's primary responsibility is the safe operation of the vehicle. Driving while distracted can result in loss of vehicle control, resulting in an accident and personal injury. FCA US LLC strongly recommends that the driver use extreme caution when using any device or feature that may take their attention off the road. Use of any electrical devices, such as cellular telephones, computers, portable radios, vehicle navigation or other devices, by the driver while the vehicle is moving is dangerous and could lead to a serious accident. Texting while driving is also dangerous and should never be done while the vehicle is moving. If you find yourself unable to devote your full attention to vehicle operation, pull off the road to a safe location and stop your vehicle. Some states or provinces prohibit the use of cellular telephones or texting while driving. It is always the driver's responsibility to comply with all local laws.

This Owner's Manual has been prepared to help you get acquainted with your new Ram brand vehicle and to provide a convenient reference for common questions.

Not all features shown in this manual may apply to your vehicle. For additional information on accessories to help personalize your vehicle, visit mopar.com/om (U.S.), owners.mopar.ca (Canada) or your local Ram brand dealer.

DRIVING AND ALCOHOL

Drunk driving is one of the most frequent causes of accidents. Your driving ability can be seriously impaired with blood alcohol levels far below the legal minimum. If you are drinking, don't drive. Ride with a designated non-drinking driver, call a cab, a friend or use public transportation.

WARNING

Driving after drinking can lead to an accident. Your perceptions are less sharp, your reflexes are slower and your judgment is impaired when you have been drinking. Never drink and then drive.

RAM 4500 Chassis Cab (2021) - WARNING - 1

RAM 4500 Chassis Cab (2021) - WARNING - 2

RAM 4500 Chassis Cab (2021) - WARNING - 3

natural_image Black Ram truck driving on a dirt road with dust, surrounded by green fields and trees under a blue sky (no visible text or symbols)

RAM 4500 Chassis Cab (2021) - WARNING - 4

Whether it is providing information about specific product features, taking a tour through your vehicle's heritage, knowing what steps to take following an accident or scheduling your next appointment, we know you will find the app an important extension of your Ram vehicle. Simply download the app, select your make and model and enjoy the ride. To get this app, go directly to the App Store® or Google Play® Store and enter the search keyword "ram toolbox" (U.S. residents only).

U.S.
RAM 4500 Chassis Cab (2021) - WARNING - 5
MOPAR.COM/OM

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Product information

Brand : RAM

Model : 4500 Chassis Cab (2021)

Category : Car