GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Open the hood.
  2. Turn the ignition switch to the ACCY position.
  3. Turn the wiper switch to the DELAY position.
  4. Turn the ignition switch OFF when the wiper arms are in the mid-wipe position.

  5. Object Number: 70095  Size: SH
  6. Place a piece of masking tape (5) onto the windshield at the tip of each wiper blade (6) to aid in the wiper arm reinstallation.
  7. Disconnect the washer hose (3) from the air inlet grille panel.
  8. Remove the wiper arm nut cover (1).
  9. Remove the wiper arm nut (2).
  10. Firmly grasp the wiper arm at the hinged joint. Apply a rocking motion toward the windshield to loosen the arm from the wiper shaft (4).
  11. Remove the wiper arm.
  12. Remove the wiper blade (6) from the wiper arm. Refer to Windshield Wiper Blade Replacement .

Installation Procedure

  1. Install the wiper blade (6) onto the wiper arm. Refer to Windshield Wiper Blade Replacement .
  2. Inspect the wiper transmission shaft (4) and wiper arm splines for corrosion, clean if necessary.

  3. Object Number: 70095  Size: SH
  4. Position the tip of the wiper blade (6) to the marks made on the windshield with masking tape (5).
  5. Install the wiper arm onto the wiper transmission (4) splined shaft.
  6. 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.

  7. Install the wiper arm nut (2).
  8. Tighten
    Tighten the nut (2) to 29 N·m (21 lb ft).

  9. Install the wiper arm nut cover (1).
  10. Connect the washer hose (3) to the air inlet grille panel.
  11. Remove the masking tape (5) from the windshield.
  12. Inspect the wipers for proper operation.