Repair Instructions

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.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for TCSCM replacement, setup and programming.
Transfer Case High/Low Clutch Reset
Four-Wheel Drive Does Not Engage
Four-Wheel Drive Does Not Disengage
Front Drive Axle Actuator Replacement (8.25 Inch LD Axle)Front Drive Axle Actuator Replacement (9.25 Inch HD Axle)