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Installation Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying HVAC Control Module Electrical Connectors
    GM410369Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The key should be in the off position when connecting the electrical connectors to ensure proper calibration.
  1. Connect the electrical connectors to the HVAC control module.
    2. Fig 2: View Of HVAC Control Module Mounting Clips
    GM1396877Courtesy of GENERAL MOTORS CORP.
  2. Install the HVAC control module.
    3. NOTE: Refer to Fastener Notice .
  3. Install the HVAC control module mounting screws.

    Tighten:  Tighten the screws to 2 N.m (18 lb in).

  4. Install the instrument panel lower trim plate. Refer to Instrument Panel Lower Trim Plate Replacement .
    5. 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.
  5. Start the engine and run for 1 minute. Refer to Control Module References for programming and setup information.
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