Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
C0321 01 and C0321 04
- Shifts allowed. Clutch engages only if slip is detected.
- The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.
C0321 02 and C0321 08
- Normal operation.
- The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.