GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Lower the molded headlining. Refer to Headlining Trim Panel Replacement.

  2. Object Number: 1937631  Size: SH
  3. Remove the front water drain hose actuation unit.
  4. Remove the 2 hoses.


    Object Number: 1937632  Size: SH
  5. Remove the rear water drain hose actuation unit.
  6. Remove the 2 hoses.

  7. Disconnect the front wiring harness actuation unit.
  8. Disconnect the 2 wiring harness plugs.


    Object Number: 1937633  Size: LF
  9. Release the sunroof module assembly.
  10. Remove the 20 screws.

  11. Remove the sunroof module assembly.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.

  1. Insert the sunroof module assembly.
  2. Fasten with 3 screws.

  3. Install the sunroof module assembly.
  4. Tighten
    Tighten the 20 screws to 5 N·m (44 lb in).

  5. Connect the front wiring harness actuation unit.
  6. Connect the 2 wiring harness plugs.

  7. Install the rear water drain hose actuation unit.
  8. Connect the 2 hoses.

  9. Install the front water drain hose actuation unit.
  10. Connect the 2 hoses.

  11. Install the molded headlining. Refer to Headlining Trim Panel Replacement.