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Circuit/System Verification

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.
  1. Ignition ON, verify the parking assist system is enabled through the DIC.
    • If the parking assist system is manually disabled, enable the system. Refer to the vehicle owners manual for instructions on enabling the system.
  2. Observe the scan tool Park Assist Switch parameter while pressing and releasing the park assist disable switch. The parameter should change between Active and Inactive.
    • If the parameter does not cycle between the specified values, refer to Park Assist Disable Switch Circuit Malfunction below.
  3. Observe the scan tool Park Assist Switch LED parameter while pressing and releasing the park assist disable switch. The parameter should change between On and Off.
    • If the parameter does not cycle between the specified values, refer to Park Assist Disable LED Circuit Malfunction below.
  4. Transmission in REVERSE, verify one audible beep sounds and the scan tool Park Assist System Status parameter is Enable.
    NOTE: After completing the next step the vehicle might need to be driven in the forward direction at speed greater than 40 km/h (25 mph).
    • If not the specified values, refer to Diagnostic Aids in this test procedure and the scan tool Park Assist Disable History parameters to determine the cause of the inhibit.
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