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.
Current Mode:
4WD Auto, 4WD HI or 4WD LO
- Clutch torque increased to maximum torque.
- No further mode/range changes allowed.
- The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.
2WD HI or Neutral
- No further mode/range changes allowed.
- The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.
Mode/Range Shift
- Current mode/range change completed.
- No further mode/range changes allowed.
- The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.