Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2005 GMC Yukon XL and 2005 GMC Yukon. However, it is still accessible from the selected car via links, so may be relevant.
- The SERVICE 4WD indicator is latched on and the system is disabled.
- The transfer case control switch displays the current position LED while DTC C0550 is current, but further shifting is disabled.