GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

The actuator motor, the gear and the potentiometer control module are serviced as a unit.

  1. Remove the sunroof actuator motor cover.
  2. 1.1. Remove the sunroof selector knob (if equipped).
    1.2. Release the tabs push inward (if equipped) in order to remove the potentiometer.
  3. Remove the dome and the reading lamp.
  4. Remove the screws from the sunroof actuator motor cover.
  5. Pull down and rearward in order to unhook the sunroof actuator motor cover from the headliner.

  6. Object Number: 168393  Size: SH
  7. Remove the screws from the sunroof actuator motor.
  8. Disconnect the electrical connectors from the sunroof actuator motor.
  9. Remove the actuator motor.
  10. In order to remove the motor, turn slightly to disengage from the cables.

Installation Procedure

Important: Manually push the glass panel rearwards on both sides in order to check that the sunroof is at the maximum open position. This procedure sets both the slide and/or the guide, and the cables.

  1. Install the actuator motor.
  2. Important: Reprogram the sunroof. Verify the proper operation. Refer to Power Sunroof Description


    Object Number: 168393  Size: SH
  3. Install the screws to the actuator motor.
  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.

    Tighten
    Tighten the actuator motor screw to 5 N·m  (44 lb in).

  5. Connect the electrical connector to the actuator motor.
  6. Align the front edge of the sunroof actuator motor cover to the headliner. Push in place.
  7. 4.1. Install the sunroof selector knob (if equipped).
    4.2. Install the potentiometer. Insert to the tabs. Push downward (if equipped).
  8. Insert the screws to the sunroof actuator motor cover.
  9. 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.

    Tighten
    Tighten the sunroof actuator motor cover screws until fully seated and not stripped.

  10. Connect the electrical connector to the actuator motor dome and to the reading lamp.
  11. Install the dome and the reading lamp.