GM Service Manual Online
For 1990-2009 cars only

Programming and Setup Procedures

Each of the following service procedures requires programming or setup procedures to be performed on the HVAC control module.

HVAC Control Module Replacement-Manual HVAC

If the HVAC control module is replaced no additional procedures are necessary.

Actuator Replacement-Manual HVAC

If an actuator is replaced, a Re-Calibration of the actuator is not necessary. The HVAC module knows the exact location of the door when the HVAC system is turned on.