GM Service Manual Online
For 1990-2009 cars only

    Object Number: 728698  Size: SH
  1. In order to adjust the glass height, the sunroof glass must be in the zero (closed) position.
  2. Important: Do not remove the screws from the sunroof mechanism.

  3. Loosen the 4 adjustment screws

  4. Object Number: 728695  Size: SH

    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.

  5. Adjust the rear glass panel (1) so that it is flush with the roof panel (3), (0-2.0 mm (0.079 in) above 3).
  6. Tighten
    Tighten rear screws to 7 N·m (62 lb in).

  7. Adjust the front glass panel (2) so that it is flush with the roof panel (3), (0-2.0 mm (0.079 in) below 3).
  8. Tighten
    Tighten front screws to 7 N·m (62 lb in).