HVAC Control Module 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 HVAC control module is replaced, an automatic re-calibration of all the actuators will occur. No additional procedures are necessary.