Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
- Shifting is still possible but in a reduced capacity which may cause undesirable slip correction events.
- The SERVICE 4WD indicator remains illuminated for the remainder of the current ignition cycle.
C0397 54
Front axle disengaged.
C0397 58
Shifting disabled.
C0397 4B
- Max torque commanded for 4WD/AWD Automatic.
- The default actions for C0397 4B will cause DCT C038D to set.
C0397 F3
- Shifting disabled.
- Front axle disengaged.
C0397 F4
- Shifting disabled.
- Front axle disengaged.