Symptoms
- Screen goes black or shows 'no signal' when in reverse
- Rest of the infotainment screen works fine
- Started suddenly or after a car wash
- Camera housing may look cracked or fogged
Likely causes
- CommonBlown fuse for the backup camera circuitThe camera often runs on its own fuse separate from the rest of the infotainment system.
- CommonWater intrusion or corroded connectorBackup cameras are exposed to weather and can develop connector corrosion over time.
- PossibleCamera lens physically damaged or obstructedDirt, cracks, or impact damage can block the image even if the electronics are fine.
- PossibleFailed camera unit or wiring harnessThe camera or its cable running to the bumper/trunk can fail from wear or an impact.
What to do
- Wipe the camera lens (usually near the license plate or trunk handle) clean of dirt, ice, or grime.
- Check the fuse box for a backup camera or rear-view fuse and replace it if blown.
- Look at the camera housing for cracks, fogging, or obvious water damage.
- Put the car in reverse and check if the screen shows any signal at all, even a black or static image, versus a clear 'no signal' message.
- If the car was recently in a fender bender or had rear-end work done, suspect a disconnected or damaged wiring harness.
- Test after cleaning and checking the fuse; if still no image, further diagnosis needs a lift or wiring check.
Tools and parts
- Microfiber cloth
- Fuse puller
Backup camera fuseSearch: “backup camera fuse for your car model”
Replacement backup cameraSearch: “OEM or aftermarket backup camera for your car make, model, and year”
When to call a pro
If cleaning and the fuse don't fix it, a mechanic should check the camera wiring and connector for damage or corrosion.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.