Repair Instructions

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, 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 repair.

Perform the Reset Transmission Adapts following all transmission related repairs.
Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection before replacing any internal transmission components.
Manual Shift Shaft Position Switch Replacement for internal mode switch (IMS) replacement
Refer to Control Module References for Control Solenoid Valve Assembly replacement, programming, and setup.