Action Taken When the DTC Sets

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

All shifting is disabled.
The mode light shall flash upon a requested mode change and then return to the current mode.
The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.