GM Service Manual Online
For 1990-2009 cars only
  1. Open the sunshade.
  2. Close the sunroof window.
  3. Remove the cover, that conceals the bolts on the window, from the left and right side. Refer to Sunroof Panel Side Opening Closeout Cover Replacement.

  4. Object Number: 1617460  Size: MH
  5. Loosen the adjusting screws.
  6. Adjust the corners of the glass panel (3) using the following guidelines:
  7. • Adjust the front of the sunroof window (2) flush to 1 mm (0.04 in) below the top surface of the roof panel.
    • Adjust the rear of the sunroof window (1) flush to 1 mm (0.04 in) above the top surface of the roof panel.

    Caution: Refer to Fastener Caution in the Preface section.

  8. Install the sunroof window adjustment screws.
  9. Tighten
    Tighten the sunroof window adjusting screws to 6 N·m (53 lb in).

  10. Install the left and right side covers. Refer to Sunroof Panel Side Opening Closeout Cover Replacement.