Visual/Physical Inspection

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Inspect for aftermarket devices which could affect the operation of the system. Refer to Checking Aftermarket Accessories .
Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Make sure the object alarm sensors located on the vehicle rear bumper are clear. Remove any snow, mud or ice that is blocking the sensors.
Make sure the rear vision camera is clear. Remove any snow, mud or ice that is blocking the rear vision camera.