GM Service Manual Online
For 1990-2009 cars only

The following service procedures require either a programming or a setup event performed for a complete repair.

HVAC Control Module Replacement

If the HVAC control module is replaced, the control module programming procedure must be performed. Refer to Service Programming System (SPS).

HVAC Control Module Reprogramming

Do not reprogram the HVAC control module unless directed by a service procedure or a service bulletin.

If the HVAC control module needs to be reprogrammed, refer to Service Programming System (SPS).

Setup for Component Replacement

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

Re-calibrating actuators for the automatic HVAC system. Refer to Actuator Recalibration.