Transmission Control Module (TCM) Replacement
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
If the TCM is replaced, TCM Reprogramming must be performed. Refer to Service Programming System (SPS) .