GM Service Manual Online
For 1990-2009 cars only

Manual window regulator (without A31) shown, power regulator (A31) similar.

Removal Procedure

  1. Remove the rear door trim panel. Refer to Rear Side Door Trim Panel Replacement .
  2. Remove the rear inside door handle. Refer to Rear Side Door Inside Handle Replacement .
  3. Remove the rear door speaker. Refer to Radio Rear Side Door Speaker Replacement in Entertainment.
  4. Remove the rear door water deflector. Refer to Rear Side Door Water Deflector Replacement .

  5. Object Number: 1257627  Size: SH
  6. Remove the bolts retaining the rear window to the window regulator.
  7. Raise and support the rear door window.

  8. Object Number: 1257629  Size: SH
  9. Disconnect the electrical connector from the window regulator motor, if equipped with A31.
  10. Loosen the bolts retaining the window regulator (1) to the inner door at the keyhole slot (2) locations.
  11. Remove the bolts retaining the window regulator to the inner panel.
  12. Remove the window regulator (1) by lifting the regulator up, and out of the keyhole slots (2) in the inner panel, and removing the regulator out through the access hole.

Installation Procedure


    Object Number: 1257629  Size: SH
  1. Install the rear door window regulator (1) into the rear door through the access hole.
  2. Position the rear door window regulator to the inner panel by inserting the regulator bolts to the keyhole slots (2) on the inner panel.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the bolts retaining the rear door window regulator to the inner panel.
  5. Tighten
    Tighten the rear window regulator bolts to 9 N·m (80 lb in).

  6. Connect the electrical connector to the window regulator motor, if equipped with A31.

  7. Object Number: 1257627  Size: SH
  8. Remove the window support and lower the window onto the window regulator carrier plate.
  9. Install the bolts retaining the window to the window regulator.
  10. Tighten
    Tighten the rear window bolts to 9 N·m (80 lb in).

  11. Install the rear door water deflector. Refer to Rear Side Door Water Deflector Replacement .
  12. Install the rear door speaker. Refer to Radio Rear Side Door Speaker Replacement in Entertainment.
  13. Install the rear door inside handle. Refer to Rear Side Door Inside Handle Replacement .
  14. Install the rear door trim panel. Refer to Rear Side Door Trim Panel Replacement .