GM Service Manual Online
For 1990-2009 cars only

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

Auxiliary HVAC Control Module Reprogramming

The Auxiliary HVAC Control Module does not require any programming when it is replaced.

Actuator Replacement

If an actuator is replaced, the following procedure must be performed:

    • Re-Calibrating Actuators--Refer to Actuator Recalibration for the manual system.
    • Re-Calibrating Actuators--Refer to Actuator Recalibration for the automatic system.