GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 428644  Size: SH
  1. Remove the door trim panel. Refer to Front Side Door Trim Panel Replacement .
  2. Remove the door module. Refer to Door Control Module Replacement .
  3. Remove the water deflector. Refer to Front Side Door Water Deflector Replacement .
  4. Caution: Disconnect the power window switch when working inside the driver door. When operated, the Express Up/Down Feature allows the door window to move very quickly, without stopping, which could cause personal injury.

  5. Loosen the window retainer clamp fasteners.
  6. Important: You may need to use masking tape to hold the window in place while replacing the regulator.

  7. Slide the window to the full up position.
  8. Disconnect the electrical connector from the window regulator motor.
  9. Remove the window regulator to inner door panel fasteners.
  10. Remove the window regulator.

Installation Procedure


    Object Number: 428644  Size: SH
  1. Install the window regulator into the door.
  2. 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.

  3. Install the window regulator fasteners.
  4. Tighten
    Tighten the fasteners in this order, (1, 3, 2), to 9 N·m (80 lb in).

  5. Provide power to the window motor and run the regulator to the fully closed position.
  6. Install the window to clamps.
  7. Tighten
    Tighten window clamp fasteners to 11 N·m (95 lb in).

  8. Connect the electrical connector to the window regulator motor.
  9. Install the water deflector. Refer to Front Side Door Water Deflector Replacement .
  10. Install the door module. Refer to Door Control Module Replacement .
  11. Install the door trim panel. Refer to Front Side Door Trim Panel Replacement .