GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 166670  Size: SH
  1. Position the sunroof in the fully closed position.
  2. Remove the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  3. Disconnect the sunroof motor electrical connectors.
  4. Disconnect the express module electrical connectors.
  5. Remove the front drain hoses from the sunroof housing. Refer to Sunroof Drain Hose Replacement .
  6. Remove the rear drain hoses from the sunroof housing. Refer to Sunroof Drain Hose Replacement .
  7. Important: A helper will be required to support the sunroof module when removing the nuts and bolts.

  8. Remove the two push-in retainers.
  9. Remove the sunroof housing nuts at the sunroof brackets.
  10. Remove the sunroof module bolt at the motor bracket.
  11. Remove the four sunroof module bolts through the module brackets and into the side rail.
  12. Remove the six sunroof module bolts to the roof.
  13. Important: A helper will be required to assist in the removal of the sunroof module from the vehicle.

  14. Remove the sunroof module from the vehicle through the door opening.

Installation Procedure

Important: A helper will be required to assist in the installation of the sunroof module into the vehicle.

  1. Install the sunroof module to the vehicle through the door opening.
  2. Important: A helper will be required to support the sunroof module when installing the bolts.


    Object Number: 166670  Size: SH
  3. Install the six sunroof module bolts to the roof.
  4. Install the four sunroof module bolts through the module brackets and into the side rail.
  5. Install the sunroof module bolt at the motor bracket.
  6. Tighten
    Tighten the sunroof module bolts to 10 N·m (89 lb in).

  7. Install the sunroof housing nuts at the sunroof brackets.
  8. Tighten
    Tighten the sunroof housing nuts to 10 N·m (89 lb in).

  9. Install the two push-in retainers.
  10. Install the rear drain hoses to the sunroof housing. Refer to Sunroof Drain Hose Replacement .
  11. Install the front drain hoses to the sunroof housing. Refer to Sunroof Drain Hose Replacement .
  12. Connect the electrical connectors to the motor.
  13. Connect the electrical connectors to the express module.
  14. Open and close the sunroof to recheck the operation.
  15. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  16. Adjust the sunroof if necessary. Refer to Sunroof Panel Vertical Adjustment .