GM Service Manual Online
For 1990-2009 cars only

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.

HVAC Control Module Replacement - Automatic HVAC

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

Actuator Replacement - Automatic 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.