HVAC Control Module Reprogramming
WARNING: This page is about a different car, the 2008 Pontiac Torrent and 2008 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Do not reprogram the HVAC control module, unless directed by a service procedure, or a service bulletin.
Reprogram HVAC Control Module-Refer to Service Programming System (SPS) .