GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 39232 Wiper Linkage Separator
    • J 39529 Wiper Linkage Installer

Removal Procedure


    Object Number: 518309  Size: SH
  1. Remove the wiper arms. Refer to Windshield Wiper Arm Replacement .
  2. Remove the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  3. Remove the 3 bolts and 2 nuts retaining the windshield frame reinforcement.
  4. Remove the windshield frame reinforcement.

  5. Object Number: 497497  Size: SH
  6. Pull or push on the wiper transmission linkage to rotate the wiper motor crank arm (2) from the park position (1) to the area opposite the park position (3).

  7. Object Number: 497495  Size: SH
  8. Remove the harness grommet from the hole in the plenum.
  9. Disconnect the wiper motor harness connector.
  10. Push the harness and grommet through the hole in the plenum.
  11. Remove the 3 screws retaining the wiper system drive module.

  12. Object Number: 497498  Size: SH
  13. Remove the wiper system drive module from the vehicle.

  14. Object Number: 798591  Size: SH
  15. Remove the drive links from the wiper motor crank arm and the wiper transmission drive shafts with the J 39232 .

  16. Object Number: 497499  Size: SH
  17. Remove the screws retaining the wiper motor.
  18. Remove the wiper motor from the wiper drive system module.

Installation Procedure

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.


    Object Number: 497499  Size: SH
  1. Install the wiper motor onto the wiper drive system module with the screws.
  2. Tighten
    Tighten the screws to 8 N·m (71 lb in).


    Object Number: 798594  Size: SH
  3. Install the drive links onto the wiper motor crank arm and the wiper transmission drive shafts with the J 39529 .

  4. Object Number: 497498  Size: SH
  5. Lower the wiper module into the upper plenum with the nose of the wiper motor pointing downward.
  6. Rotate the wiper module so that the wiper motor nose points toward the rear of the vehicle.

  7. Object Number: 497495  Size: SH
  8. Install the wiper drive system module with the 3 screws.
  9. Tighten
    Tighten the 3 screws to 8 N·m (71 lb in).

  10. Push the harness and grommet through the hole in the plenum.
  11. Connect the wiper motor harness connector.
  12. Install the harness grommet into the hole in the plenum.

  13. Object Number: 518309  Size: SH
  14. Install the windshield frame reinforcement with the 3 bolts and 2 nuts.
  15. Tighten
    Tighten the 3 bolts and 2 nuts to 9 N·m (80 lb in).

  16. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  17. Install the wiper arms. Refer to Windshield Wiper Arm Replacement .
  18. Operate the wipers and check for proper operation.