Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit/System Verification
If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.
- Verify P17 Info Display Module displays infotainment system information properly.
- If infotainment system information does not display properly
Refer to Symptoms - Entertainment .
- Go to next step: If infotainment system information displays properly
- If infotainment system information does not display properly
- Verify there is no debris on the B87 Rearview Camera lens and that the bezel and bezel seal are not damaged.
- If debris is found on the lens
Clean the lens using water and a soft cloth. If the lens, bezel, or bezel seal are damaged, replace as necessary.
- Go to next step: If there is no debris on the lens
- If debris is found on the lens
- Engine running, parking brake applied, transmission in REVERSE.
- Verify the backup lamps are illuminated.
- If the backup lamps are not illuminated
Refer to Backup Lamps Malfunction (Automatic Transmission) , or Backup Lamps Malfunction (Manual Transmission without LT1/LT4) , or Backup Lamps Malfunction (Manual Transmission with LT1/LT4) .
- Go to next step: If the backup lamps are illuminated
- If the backup lamps are not illuminated
- Engine running, parking brake applied, transmission in REVERSE.
- Verify a clear rear vision image is displayed on the P17 Info Display Module.
- If a clear image is not displayed
Refer to Circuit/System Testing.
- Go to next step: If a clear image is displayed
- If a clear image is not displayed
- All OK.
An open in the backup lamp control circuit, defective backup lamps, or incorrect/aftermarket backup lamps can cause erratic circuit behavior such as unwanted voltage on circuit when vehicle is no longer in REVERSE. The rear vision image display remaining active after the vehicle is shifted out of REVERSE can also be an indication of backup lamp control circuit issues.
A poor quality image is an image that has flickering, blinking, excessively blue/yellow hue, and/or fog/haze such that it obstructs the driver's view out the rear of the vehicle.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.