Repair Instructions

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. 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.
Refer to Control Module References for Control Solenoid Valve Assembly replacement, programming, and setup.

NOTE:

If the IMS switch has been replaced, inspect the valve body detent spring to be sure it is centered over the detent lever. This prevents the detent spring from hitting the IMS switch.

Manual Shift Shaft Position Switch Replacement for IMS replacement.