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Home >> Chevrolet >> 2004 >> SSR >> Repair and Diagnosis >> External Pages >> Different car >> Section 331 (HVAC Systems - Manual) >> Repair Instructions >> HVAC Control Module Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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.
    Fig 1: HVAC Control Assembly
    GM363018Courtesy of GENERAL MOTORS CORP.
  1. Connect the electrical connectors to the HVAC control assembly.
  2. Install the HVAC control assembly.
  3. Install the accessory switch assembly to the instrument panel. Refer to Accessory Switch Replacement in Instrument Panel, Gages, and Console.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the screws from the HVAC control assembly.

    Tighten:  Tighten the screws to 1.9 N.m (17 lb in).

  5. Install the instrument panel storage tray.
  6. Install the instrument cluster trim plate bezel. Refer toBezel Replacement - Instrument Panel (I/P) Cluster in Instrument Panel, Gages, and Console.
    7. 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.
  7. Start the vehicle and let run for one minute.
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