Parking Assist Disable Switch
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The parking assist disable switch is used as a means to manually disable the system, if desired. Pressing the switch will ground the park assist disable switch signal circuit, indicating to the object alarm module that a system disable is requested. The object alarm module will respond by grounding the indicator control circuit, illuminating the indicator on the switch.