S3 - Dash cam Rexing - Free user manual and instructions

Product Type	Dash Cam
Brand	Rexing
Model	S3
Dimensions (Approx.)	2.5 x 1.5 x 1.0 inches
Weight (Approx.)	2.0 oz
Power Source	12V car adapter with built-in battery backup
Recording Resolution	1080p Full HD
Field of View	170° wide angle
Loop Recording	Supported (1/3/5 min segments)
G-Sensor	Built-in for impact detection
Night Vision	Yes, with IR LEDs
Parking Mode	Supported (requires hardwire kit)
Storage	MicroSD card up to 256GB (Class 10 or above)
Display	2.4-inch LCD screen
GPS	Built-in GPS logger
Audio Recording	Built-in microphone (optional)
Mounting	Suction cup or adhesive mount
Maintenance	Clean lens with soft, dry cloth
Safety Precautions	Do not expose to extreme heat; ensure secure mounting
Spare Parts	Mounting bracket, power cable, USB cable sold separately
Repairability	User-replaceable battery and memory card
General Information	Designed for reliable everyday recording; supports up to 256GB SD card

Frequently Asked Questions - S3 Rexing

How do I install the Rexing S3 dash cam?

Clean the windshield, attach the mount, connect the power cable to the car's 12V port, and route the cable along the headliner. The camera will start recording automatically when power is supplied.

What type of SD card should I use?

Use a MicroSD card with class 10 or UHS-I rating, up to 256GB. Format the card in the camera before first use.

How do I enable parking mode?

Parking mode requires a hardwire kit (sold separately). Connect the kit to the car's fuse box, then enable parking mode in the camera's settings. The camera will record when motion or impact is detected while the car is off.

Can I view footage on my phone?

The Rexing S3 does not have built-in Wi-Fi. To view footage, remove the SD card and insert it into a computer or use an SD card reader with your phone.

How do I format the SD card?

Go to Settings > Format and confirm. It is recommended to format the card every few weeks to maintain performance.

What is the best resolution setting?

For most users, 1080p at 30fps offers a good balance between clarity and file size. Higher resolutions may require faster SD cards.

How do I adjust the G-sensor sensitivity?

Navigate to Settings > G-Sensor and choose from Low, Medium, or High sensitivity. Higher sensitivity will lock files more easily.

Does the camera have audio recording?

Yes, the camera has a built-in microphone. Audio recording can be turned on or off in the settings menu.

How do I update the firmware?

Download the latest firmware from the Rexing website, copy it to a formatted SD card, insert into the camera, and power on. Follow on-screen instructions.

Why does the camera stop recording unexpectedly?

Common causes: the SD card is full or slow, the power cable is loose, or the camera is overheating. Try a high-speed SD card and ensure proper ventilation.

USER MANUAL S3 Rexing

The information in this manual is subject to change without notice. Rexing All Rights Reserved

www.rexingusa.com

About Us

Thank you for choosing REXING!

We hope you love your new products as much as we do. If you need any assistance, or have any suggestions to help us improve, please contact us.

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What's in the box?

1. Rexing S3 3-Channel Dash Cam
2. Power Cable with GPS Logger (12ft)

3. Cable Management Kit

4. Adhesive Mount

5. User Manual
6. Safety Guide

Camera Overview

1. Power Port
2. Micro SD Card Slot
3. Reset Pin Hole
4. Menu Button, Mode Switch Button
5. Record Button, Photo Button, Up Button

6. Power Button, Screen Button

7. Screen-view Switching, Audio Button, Down Button

8. Confirm Button, Video Lock Button, Wi-Fi Button
9. Rotating Front Camera (90°)
10. Rotating Rear/Cabin Cameras (180° horizontal and 270° vertical)
11. Infrared Lights

Button Function

	Press to turn on or turn off the screenPress and hold for 3 seconds to turn the device on or off
	Press to confirm a selection in settingsLock a Video: Press to manually lock / unlock a video file while recordingPress and hold for about 3 seconds to turn on/off the Wi-Fi
	Please press the Record Button to stop recording first.Press once/twice to switch between Video Settings and General Settings; press and hold for 3 seconds to exit settingsPress and hold for 3 seconds to switch between video recording and playback modesIn the playback mode, press to switch among the three cameras' footages
	Press to navigate UP through the options in settingsPress to start / stop video recordingPress and hold for about 3 seconds to take a photo
	Press to navigate DOWN through the options in settingsPress this button to switch among three camera's viewsPress and hold for 3 seconds to turn on/off the audio
	Use a pin and press it for 5 seconds to reset the device back to the manufactures' default settings

Screen Icons

1. Recording Mode

2. Wi-Fi Signal

3. Recording Indicator

4. GPS Signal

5. Recording Time

6. Microphone

7. Resolution

8. SD Card

9. Date

10. Power Indicator

11. Time

Installation

Step 1

Installing Adhesive Mount

Place the 3M adhesive on the mount plate and properly orient the mount piece to the roof and hood line of the vehicle.

Important! Ensure the T-interlock on the mount is oriented in the correct direction.

Firmly press the mount onto the windshield. Wait at least 20 minutes before mounting the camera.

Step 2

Mount the Rear Camera

Mount the rear camera as shown below. Use the included rear camera cable to connect the rear camera to the front camera.

Step 3

Insert the Memory Card

The Rexing S3 accepts Class 10/ UHS-1 or higher Micro SD memory cards up to 256GB. You will need to insert a memory card before recording. Before inserting or removing a memory card, ensure you've powered down the device.

Gently push the memory card in until you hear a click, and allow the spring release to push the card out.

Step 4

Power on the Camera and Format the Memory Card

Place the camera on the mount and carefully route the power cable around the windshield and tuck it in under the trim.

Power the camera by connecting the charger to the car cigarette lighter and the camera.

The camera will shut down after 3 seconds when it's disconnect from the power source and it should begin recording automatically the next time it is powered on. To ensure the S3 records to your memory card properly and without error, we strongly recommend you to format the card within the camera when you're using the dash cam for the first time.

Note:

Always remember backup important data stored on the memory card before formatting.

To format the memory card, first press the REC button to stop recording. Then press the MENU button twice to enter the Setup Settings. Use the REC and MIC buttons and toggle to the Format. Press the OK button to confirm the format.

Press the MENU button twice

Press the OK button to confirm formatting the memory card

Basic Operation

Video Playback

To playback a video on the device, press the Record button to stop recording. Press and hold the Mode button to enter the playback mode. Use the the Up and Down buttons to toggle to the desired video. Press the OK button to play.

During playback, use the OK (pause), Up (rewind) and Down (fast forward) buttons to control the video playback.

To playback a video by using an SD card adapter, remove the memory card and insert it into an SD card adapter. Place the adapter in the computer.

Diagram showing two devices with red arrows indicating movement or interaction (no text or symbols present)

Menu Settings

Loop Recording

With loop recording mode enabled, the device will continuously erase the oldest video once the memory card reaches the storage limit. The video will be recorded and kept with the user-selected time range.

Loop Recording

1 Minute

2 Minute

3 Minute

Off

Time Lapse Record

The time lapse record can be selected in 1FPS/2FPS/4FPS.

Timelapse record

Off

1FPS

2FPS

4FPS

Gravity Sensing

If a change in gravitational forces is detected, such as in the event of a vehicular accident, the G-Sensor will send a signal to the dash cam and automatically place a file lock on the current video. Which will preserve your most crucial footage.

Note:

Locked video files won't be erased by Loop Recording, they will remain on the memory card until they are manually deleted, or when the card is formatted.

Gravity Sensing

High

Middle

Low

Close

Date Stamp

You have the option to display the date and time in your videos. Note that the date and time stamp cannot be removed from videos if this feature was enabled at the time of recording.

Recording Audio

You may choose to record audio with video, or turn off the microphone so that all recorded videos will be muted.

Alternatively, you can press and hold the Audio button for about 3 seconds to mute/unmute the microphone for video recording.

Exposure

Adjust the camera exposure value for brighter or darker recorded video, according to your preference.

Exposure

-3

-2

-1

0

1

Light Frequency

This option should be set according to the power supply specification used in your country or geographical region (U.S. users should select the "60Hz" option).

Screen Saver

Select a time duration for the screen to stay lit after recording starts.

Screen Saver

10 Seconds

30 Seconds

1 Minute

Close

You may also press the Power button to turn the screen on/off.

Language

Use the following procedure to change the device's language.

Language

English

Français

Español

Português

Deutsch

Parking Monitor (Parking Surveillance Mode)

Parking monitor provides surveillance on your parked vehicle. When the engine is off, the hardwire kit is used to provide continuous power and protect your car battery from being discharged.

Option 1: Vibration Detection

To enable the Parking Monitor, you'll need to connect it with the Smart Hardwire Kit (ASIN B07RN24B7V, sold separately).

This feature will allow the dash cam to switch to parking mode automatically if the vehicle's engine turns off and switch back to the normal recording after the vehicle's engine turns on.

Please go to https://www.rexingusa.com/support/videos/ to watch a video tutorial about the installation.

There are 2 options under parking mode:

We recommend using the Time Lapse option.

• Time Lapse Record:

Record video in one frame per second to conserve memory and reduce the time it takes to review video.

• Gravity Sensing Record:

The Gravity Sensing detects significant or sudden movement (such as an impact or collision), it will trigger an event recording. We suggest setting the “Gravity Sensing” to High sensitivity for Parking Mode Recording.

Note:

If you do not use the parking mode function, please change the Gravity Sensing sensitivity to low. Otherwise, the video will easily be locked and the video cannot be deleted by the loop recording function. This will cause the memory card to be full of locked videos and cause the recorder to fail to work normally.

Option 2: Motion Detection

To use this feature, you need to connect it with an Intelligent Hardwire Kit (ASIN B0973MBCT8, sold separately). Make sure that the Parking Mode is turned off on your dash cam.

Once the sensor has detected MOTIONS. The intelligent hardwire kit will powerup the dash cam automatically and start recording until the MOTION is cleared.

IR LED

Use the following procedure to turn on or off the infrared lights.

System Volume

Increase or decrease the volume of your dash cam.

Key Sound

Allows you to turn the device's button sound effect on or off.

Date and Time

Use the following procedure to change the device's time and date.

Set Time Zone

Use the following procedure to change the device's time zone.

Set Time Zone

GMT-09:00 Alaska

GMT-08:00 LosAngeles

GMT-07:00 Arizona

GMT-06:00 Chicago

GMT-05:00 New York

GPS Speed Unit

Use the following procedure to change the GPS speed unit.

The GPS logger is integrated on the power cable, which allows you to view your speed and location when you playback your recordings using the GPS video player.

After a GPS signal is found, the screen icon will turn from blue to green.

Please visit https://www.rexingusa.com/support/videos/ to watch a video tutorial.

Download a GPS Video player

Please download GPS logger player through https://www.rexingusa.com/support/mobile-downloads/gps-player-type-b/ OR Scan the QR Code below.

Wi-Fi

With the dash cam built-in Wi-Fi, you can use your smart device as a remote camera, viewfinder, and download files to your phone. Please disconnect the Wi-Fi connection first if you want to operate on the dash cam.

1. Press the Record button to stop recording
2. Press the Menu button twice to enter General Settings
3. Press the Up or Down button to toggle to Wi-Fi
4. Press the OK button to turn it on/off
5. Press and hold the Menu button for 3 seconds to exit.

You can also press and hold the OK button for about 3 seconds to turn on/off the Wi-Fi feature.

Downloading the Wi-Fi App

Download Rexing Connect app from the App Store or Google Play or scan the QR code below.

Pairing the camera to your device

Turn on Wi-Fi on the dash cam and the SSID and password will be shown as below.

Open Settings on your phone (make sure that the Wi-Fi has turned on) and find the SSID in the network list, then enter the default password 12345678 to connect. Once it's connected, the Wi-Fi icon on the dash cam screen will turn to green.

Open the Rexing Connect app and press connect to complete the pairing.

Performing this operation will reset all of your device's settings to their original values.

Note:

Any user-customized settings will be lost.

Warranty & Support

Warranty

The Rexing S3 Dash Cam comes with a full 12-month warranty. If you register your product on our official site https://www.rexingusa.com/support/registration, you can extend the warranty to 18 months.

Support

If you have any questions regarding your product, please do not hesitate to contact us at [e-mail], or call us at [phone]. Queries are typically answered within 12-24 hours.

Your opinion matters

Rexing is firmly committed to always improving our products, services, and user experience. If you have any thoughts on how we can do even better, we welcome your constructive feedback and suggestions.

Connect with us today at [e-mail]

Thank you for choosing Rexing!

FCCID: 2AW5W-S3

This device complies with part 15 of the FCC Rules. 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 this equipment.

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