GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 2WD 🢒 Body and Accessories 🢒 Stationary Windows 🢒 Heater and Air Conditioning Control Replacement

Removal Procedure
  1. Remove the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in Instrument Panel, Gages and Console.
  2. Remove the HVAC control assembly retaining screws.

    3. Object Number: 281495 Size: SH
  3. Depress the HVAC control assembly retaining tabs and remove the HVAC control assembly from the instrument panel.

    4. Object Number: 728264 Size: SH
  4. Disconnect the vacuum harness connector from the HVAC control assembly.
  5. Disconnect the electrical connectors from the HVAC control assembly.

Installation Procedure

    Object Number: 728264 Size: SH
  1. Connect the electrical connectors to the HVAC control assembly.
  2. Connect the vacuum harness connector to the HVAC control assembly.

    3. Object Number: 281495 Size: SH
  3. Install the HVAC control assembly to the instrument panel. Ensure that all 4 retaining tabs lock into place.

    4. 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 assembly retaining screws.

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

  5. Install the instrument panel accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement in Instrument Panel, Gages, and Console.