GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Disconnect the power window switch when working inside the driver door. When operated, the Express Up/Down Feature allows the door window to move very quickly, without stopping, which could cause personal injury.

  1. Place window in halfway down position.
  2. Remove front side door trim panel. Refer to Door Trim Panel Replacement .
  3. Remove water deflector. Refer to Door Water Deflector Replacement .
  4. Support window in position by inserting rubber wedge door stops at front and rear of window between window and door inner panel.

  5. Object Number: 378904  Size: MH
  6. Remove window rear guide nuts so rear guide channel can be moved.
  7. Remove window regulator rivets by drilling out rivet with drill.
  8. Remove electrical connectors from regulator motor by sliding motor and regulator rearward, if equipped.
  9. Remove window regulator (3) from channels.
  10. Remove window regulator with regulator motor attached if equipped through rear access hole.

Installation Procedure

Caution: Disconnect the power window switch when working inside the driver door. When operated, the Express Up/Down Feature allows the door window to move very quickly, without stopping, which could cause personal injury.


    Object Number: 378904  Size: MH
  1. Install window requlator with regulator motor theough rear access hole.
  2. Install window regulator to channels in door.
  3. Install electrical connector to regulator motor, if equipped.
  4. Install regulator rivets to regulator
  5. Install window rear guide channel nuts.
  6. Install water deflector. Refer to Door Water Deflector Replacement .
  7. Install front side door trim panel. Refer to Door Trim Panel Replacement .