HVAC Control Module Replacement
WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
If the HVAC control module is replaced it must be programmed with the latest operating software and vehicle calibrations. Refer to Service Programming System (SPS) .