GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the front window only. Refer to Sunroof Window Replacement.

  2. Object Number: 1844290  Size: SH
  3. Remove the window rear track extension screws.

  4. Object Number: 1844292  Size: SH
  5. Gently pry the front edge of the extension up to disengage the pin from the sunroof frame.

  6. Object Number: 1844293  Size: SH
  7. Remove the sunroof rear track extension (1).

Installation Procedure


    Object Number: 901556  Size: SH
  1. Position the sunroof rear track extension (4) into the rear track (1).
  2. 1.1. Use a suitable tool to push down and to the rear to engage the extension into the frame.
    1.2. Pull upward to ensure that the track extension is lock in place.

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1844290  Size: SH
  3. Install the window rear track extension screws.
  4. Tighten
    Tighten the screws to 5 N·m (44 lb in)

  5. Position the sunroof window guide even with the other track in order to install the front window.
  6. Install the front window only. Refer to Sunroof Window Replacement.