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Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing HVAC Control Module
    GM735898Courtesy of GENERAL MOTORS CORP.
  1. Remove the I/P accessory trim plate. Refer to Trim Plate Replacement - Instrument Panel (I/P) Accessory (GMC) or Trim Plate Replacement - Instrument Panel (I/P) Accessory (Oldsmobile/Buick) or Bezel Replacement - Instrument Panel (I/P) Cluster (Chevrolet) or Bezel Replacement - Instrument Panel (I/P) Cluster (GMC/Oldsmobile/Buick) in Instrument Panel, Gages and Console.
  2. Remove the control module retaining screws.
  3. Depress the HVAC control module retaining tabs (3) and remove the HVAC control module (2) from the instrument panel (4).
  4. Disconnect the electrical connectors (1) from the HVAC control module (2).