GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 632378  Size: SH
  1. Remove the wiper arm. Refer to Rear Window Wiper Arm Replacement .
  2. Remove the nut and spacer from the wiper motor shaft.
  3. Remove the interior trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.
  4. Disconnect the wiper motor electrical connector.
  5. Remove the two screws.
  6. Remove the wiper motor.

Installation Procedure


    Object Number: 632378  Size: SH
  1. Install the wiper motor.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Intall the two screws.
  4. Tighten
    Tighten the screws to 19 N·m (14 lb ft).

  5. Connect the wiper motor electrical connector.
  6. Install the interior trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.
  7. Install the spacer and the nut on the wiper motor drive shaft.
  8. Tighten
    Tighten the nut to 8 N·m (71 lb in).

  9. Install the wiper arm.