my GMC Sierra T1XX (2019-Present) rearview camera is not working, what to do?

GMC Sierra T1XX (2019-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

503 words

Problem Statement

Learn how to diagnose and fix the rearview camera issue in your GMC Sierra T1XX. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent short circuits.

Symptoms

•Rearview camera display is blank or not activating
•"Camera System Inactive" message on the infotainment display
•Rearview camera image is distorted or unclear
•No sound or alert when in reverse gear
•Backup assist features are not functioning

Diagnostic Steps

1
Check the vehicle's infotainment system for software updates.
2
Inspect the rearview camera lens for physical obstructions or damage.
3
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the camera system.
4
Verify the connection of the rearview camera harness at the camera and the infotainment module.
5
Test the camera's power supply using a multimeter.
6
Examine fuse related to the rearview camera system for continuity.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Multimeter
•Socket set
•Flathead screwdriver

Parts Required

•Rearview camera (if replacement is necessary)

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Diagnostic Steps

1
Check the vehicle's infotainment system for software updates.
2
Inspect the rearview camera lens for physical obstructions or damage.
3
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the camera system.
4
Verify the connection of the rearview camera harness at the camera and the infotainment module.
5
Test the camera's power supply using a multimeter.
6
Examine fuse related to the rearview camera system for continuity.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, and a flathead screwdriver.
Disconnect the negative battery terminal to ensure safety while working on electrical components.

2. Update Infotainment System

Using the OBD-II scanner, check for available software updates for the infotainment system.
Follow the manufacturer's instructions to perform any necessary updates.

3. Inspect the Rearview Camera

Locate the rearview camera mounted on the tailgate or rear of the vehicle.
Clean the camera lens with a soft cloth to remove any dirt or debris.
Check for any signs of physical damage or water ingress.

4. Check Electrical Connections

Remove the camera housing using a flathead screwdriver if necessary.
Inspect the wiring harness and connector for corrosion or loose connections.
Reconnect the harness securely and ensure all pins are making good contact.

5. Test Power Supply

Reconnect the negative battery terminal.
Use a multimeter to check for voltage at the camera connector; it should read around 12V when the vehicle is in reverse.
If there is no power, trace the wiring back to the infotainment module for further inspection.

6. Replace Components

If the camera or wiring is found defective, replace the rearview camera with a new OEM or quality aftermarket part.
Reassemble the camera housing and ensure all connections are secure.