GM Service Manual Online
For 1990-2009 cars only
  1. Ensure that the window is in the full up position.
  2. Remove the door trim panel. Refer to Rear Side Door Trim Panel Replacement .
  3. Remove the water deflector. Refer to Door Water Deflector Replacement .
  4. Loosen the front run channel fasteners.
  5. Loosen the fasteners that retain the window to the module sash.
  6. Lower the glass 9 cm (3 in).
  7. Slide the glass forward in the sash slots.
  8. Raise the glass.
  9. Tighten the fasteners that retain the window to the module sash.
  10. Tighten the front run channel fasteners.
  11. Cycle the window up and down in order to inspect the operation.
  12. Install the water deflector. Refer to Door Water Deflector Replacement .
  13. Install the trim panel. Refer to Rear Side Door Trim Panel Replacement .