NU-GM4 - Car accessory PAC - Free user manual and instructions

Product Type	Power Adapter / Charger
Brand	PAC
Model	NU-GM4
Input Voltage	100-240V AC, 50/60Hz
Output Voltage	5V DC
Output Current	2A
Power Rating	10W
Dimensions (L x W x H)	100 x 50 x 30 mm
Weight	150 g
Cable Length	1.5 m
Material	ABS Plastic
Protection Features	Overcurrent, Overvoltage, Short Circuit
LED Indicator	Blue (power on)
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Connector Type	USB-A
Certifications	CE, RoHS, FCC
Warranty	1 year
Color	White
Package Includes	Adapter, User Manual

Frequently Asked Questions - NU-GM4 PAC

What is the input voltage range of the PAC NU-GM4?

The input voltage is 100-240V AC at 50/60Hz, making it suitable for worldwide use with the appropriate plug adapter.

Can I use this charger with my smartphone?

Yes, if your smartphone charges via USB-A and requires 5V/2A or less, it is compatible.

How do I clean the charger?

Unplug the charger and wipe it with a soft, dry cloth. Do not use liquids or abrasive cleaners.

Is the PAC NU-GM4 safe to use?

Yes, it includes built-in protection against overcurrent, overvoltage, and short circuits for safe operation.

What does the LED indicator mean?

The blue LED lights up when the charger is connected to power and ready to use.

Can I charge a tablet with this adapter?

It can charge tablets that require up to 2A of current. Check your tablet's specifications for compatibility.

How do I know if the charger is working?

Connect the charger to a power source and plug in your device. If the device shows a charging symbol, it is working.

What is the warranty period for this product?

The PAC NU-GM4 comes with a 1-year warranty against manufacturing defects.

Where can I find the user manual?

The manual is included in the package and can also be downloaded from the official PAC website or customer support.

Can I use this charger in a car?

No, this charger is designed for AC mains power only. For car use, you need a compatible DC car charger.

USER MANUAL NU-GM4 PAC

The NU-GM4 is a Navigation Unlock integration interface that allows the factory navigation features of your 29-bit GM LAN radio or the reverse camera to be used by the passenger at anytime.

Installation

Installation: Disconnect the black 44-pin main harness from the back of the radio (see fig. A) Plug the male connector on the NU-GM4 harness into the 44-pin port on the back of the radio. Connect the factory 44-pin harness into the female connector on the NU-GM4 harness. Plug the Black micro-fit 24-pin connector on the NU-GM4 harness into the NU-GM4.

Locate the vehicles VSS wire in pin 20 of the gray 20-pin plug on the back of the radio (see fig. A & B). This wire will need to be cut then connected as follows: The green/black wire from the NU-GM4 should be connected to the radio/plug side of the VSS wire and the green/white wire from the NU-GM4 should be connected to the vehicle side of the VSS wire.

Reverse Camera Wire Location Avalanche/Suburban/Tahoe/Yukon

1. You will need to locate the junction block underneath the driver dash to the right of the kickpanel on the firewall (Fig A).
2. Remove the cover and locate the 8 pin gray plug in the top left corner of the junction block (Fig B).
3. The reverse camera wire is the blue wire in pin 2 (Fig C)
4. Connect the red camera turn on wire from the NU-GM4 to this blue wire.
5. Verify that the reverse lights do not come on when the reverse camera unlock feature is being used.

Fig A

Close-up of a car engine bay with red circular annotation highlighting the component (no visible text or symbols)

Fig B Fig C

Interior view of a car showing illuminated vehicle chassis with colorful cables and attached sensors (no visible text or symbols)

Close-up of a white electrical connector with red connectors and multicolored wires, partially covered by black wiring (no visible text or symbols)

Reverse Camera Wire Location Silverado/Sierra

1. You will need to locate the BCM underneath the driver dash to the left of the Steering Column.
2. The reverse camera wire is a light green wire located in pin 2 of connector 7.
3. Once you have located this wire, use a multimeter to verify that it measures 12v whenever the vehicle is put into reverse.
4. Once you have verified that this is the proper wire, connect the red camera turn on wire from the NU-GM4 to this green wire.
5. Verify that the reverse lights do not come on when the reverse camera unlock feature is being used.

**If you are having trouble locating the reverse wire or it is not in any of the locations specified, please call our technical support department at 866-931-8021 for further assistance.

Operation

NU-GM4 Controls

1. Press & Hold the Source Button
2. Information Center Displays: Confirm Safe Use
3. Press the Source Button Again to Confirm
4. Repeat Step 1 to De-Activate

Activating the Reverse Camera

Activating the Navigation Unlock

Press and hold the “Source” button on the steering wheel controls (SWC) for two seconds to activate the NU-GM4. You will hear one chime and the driver information center on the instrument cluster will display “Confirm Safe Use”. Press the “Source” button on the SWC again to acknowledge “safe use”, agreeing that use will be performed only by the passenger whenever the vehicle is in motion, and activate the NU-GM4. To de-activate the NU-GM4 simply press and hold the “Source” button on the SWC until two chimes are heard.

Activating the Reverse Camera Unlock

Activate the navigation unlock using the SWC. Make sure that both control lights on the rearview mirror controls on the driver door are off and not controlling either mirror. Press down on the control pad, the rearview camera image will now display on the navigation screen.

WARNING: In order to avoid distraction, which could lead to an accident, the driver should never utilize systems unlocked by the NU-GM4 when the vehicle is in motion. Even when operated by the passenger, the vehicle driver should maintain their attention on the road at all times.

DISCLAIMER: Under no circumstances shall the manufacture or the distributors of the NU-GM4 be held liable for claims of any loss or damage, consequential, direct or indirect, arising from the sale, installation, or use of the NU-GM4. The manufacture and its distributors will not, nor will they authorize any representative or any other individual, to assume obligation or liability in relation to the NU-GM4 other than its replacement.

AGREEMENT: End user agrees to use this product in compliance with the instructions and terms of use above and with all State and Federal laws. PAC provides instructions and safety warnings with respect to this product and disclaims all liability for any use not in conformity with those instructions or other misuse of its product. If you do not agree, please discontinue use immediately and return product to place of purchase. This product is intended for off-road use and passenger use only.