GM Service Manual Online
For 1990-2009 cars only

Adjustment Procedure


    Object Number: 786921  Size: SH
  1. Cycle the sunroof window from the full open to the full closed position.
  2. Important: Correct adjustment cannot be achieved if the sunroof window is closed from the vent position.

  3. Fully cycle and close the sunroof window.
  4. Disconnect the top side of the sunroof panel side opening closeout panel covers (5) from the 3 clips located on the inner edge of the sunroof window (1, 3, 4) in order to access the window adjustment screws (2, 6).
  5. Tape the side opening closeout panels in a downward position prior to adjusting the window.

  6. Object Number: 468350  Size: SH
  7. Loosen the 2 adjusting screws (1) on each side of the sunroof window.
  8. Center the window front to rear in the opening.
  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.


    Object Number: 468352  Size: SH
  10. Adjust the front of the sunroof window (2) from flush to 1 mm (0.04 in) (1) below the top surface of the roof panel (3).
  11. Tighten
    Tighten the adjustment screws to 5.8 N·m (51 lb in).


    Object Number: 758139  Size: SH
  12. Adjust the rear of the sunroof window (2) from flush to 1 mm (0.04 in) above the top surface of the roof panel (1).
  13. Tighten
    Tighten the adjustment screws to 5.8 N·m (51 lb in).


    Object Number: 786923  Size: SH
  14. Remove the tape from the sunroof panel side opening closeout covers (2).

  15. Object Number: 786921  Size: SH
  16. Connect the side opening closeout panel covers (5) to both sides of the sunroof window clips (1,3,4).
  17. Cycle the sunroof window through all of the positions.
  18. Verify the sunroof window fore/aft adjustment.
  19. Verify the front and rear height adjustment.
  20. Readjust the sunroof window, if necessary.