Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The key should be in the off position when connecting the electrical connectors to ensure proper calibration.

Connect the electrical connectors and the vacuum harness to the HVAC control assembly.

Fig 1: Connecting Electrical Connectors And Vacuum Harness To HVAC Control Assembly
Courtesy of GENERAL MOTORS CORP.
Install the HVAC control assembly into the I/P.

Fig 2: Installing HVAC Control Assembly Into I/P
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the retaining screws to secure the HVAC control assembly.
Tighten

Tighten the screws to 2 N.m (18 lb in).
Install the front floor console. Refer to CONSOLE REPLACEMENT - FRONT FLOOR (D06) in Instrument Panel, Gages, and Console.
IMPORTANT: Do not adjust any controls on the HVAC control module while the HVAC control module is calibrating. If interrupted improper HVAC performance will result.
Start the engine and run for one minute.