HVAC Control Module Replacement

WARNING: This page is about a different car, the 2007 Buick LaCrosse and 2007 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

If the HVAC manual or HVAC Automatic control modules are replaced, the following procedure must be performed:

Re-calibrating actuators - Refer to Re-Calibrating Actuators in HVAC Systems - Manual.
Re-calibrating actuators - Refer to Re-Calibrating Actuators in HVAC Systems - Automatic.

For the best re-calibration results, do not adjust any controls on the HVAC control module during the re-calibration procedure. If interrupted, improper HVAC performance may result.