Installation Procedure

WARNING: This page is about a different car, the 2005 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View of HVAC Control Module and Right I/P Accessory Trim Plate

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The ignition must be in the OFF position when installing the HVAC control module to ensure proper actuator calibration.

Install the HVAC control module into the instrument panel ensuring the tabs are seated into the instrument panel.
Install the right instrument panel accessory trim plate. Refer to Trim Plate Replacement - Instrument Panel (I/P) Accessory Right in Instrument Panel, Gages and Console.

IMPORTANT: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted improper HVAC performance will result.
The engine must be running for proper calibration to occur.

Start the engine and let run for one minute.