GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Rendezvous - FWD 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 HVAC Control Module Replacement

Removal Procedure
  1. Remove the I/P cluster trim plate bezel. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gages and Console.

    2. Object Number: 787165 Size: SH
  2. Remove the HVAC control module retaining screws.
  3. Pull the HVAC control module out from the I/P.

    4. Object Number: 787166 Size: SH
  4. Disconnect the aspirator hose (1) from the HVAC control module.
  5. Disconnect the electrical connector from the HVAC control module.
  6. Remove the HVAC control module.

Installation Procedure
  1. Connect the electrical connector to the HVAC control module.

    2. Object Number: 787166 Size: SH
  2. Connect the aspirator hose (1) to the HVAC control module.
  3. Install the HVAC control module to the I/P.

    4. Object Number: 787165 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the HVAC control module retaining screws.

    5. Tighten
    Tighten the screws to 2.5 N·m (22 lb in).

  5. Install the I/P cluster trim plate bezel. Refer to Instrument Panel Cluster Trim Plate Bezel Replacement in Instrument Panel, Gages, and Console.