Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that DTC B1405 is not set.
- If DTC is set, refer to DTC B1405 .
- Verify that DTC B0958 3A, DTC B0959 3A, DTC B0960 3A, or DTC B0961 3A is not set.
- If DTC is set, replace the appropriate object alarm sensor.
- Transmission in REVERSE, verify the parking assist system is enabled and one audible beep sounds.