Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Mode shifting is disabled until the ATC motor learn procedure has been performed.
- The SERVICE 4WD indicator illuminates.
- No mode position LED's illuminated.