GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39637 Wiper Arm Puller

Removal Procedure


    Object Number: 1912985  Size: SH
  1. Set the wipers in the Park position.
  2. Open the hood assembly.
  3. The driver side wiper aligns with an orange dot at the tip of the wiper blade located at the center lower windshield blackout.
  4. The passenger side wiper (3) aligns with an orange dot approximately 50.8 mm (2 in) in from the tip of the wiper blade located on the right lower side of the windshield blackout.
  5. Remove the windshield wiper arm nut caps (1) from the wiper arms.
  6. Remove the nut (2) from the wiper arm drive pivot shaft.
  7. Important: Use the J 39637 in order to remove the wiper arm if the wiper arm fails to loosen from the wiper arm drive spindle.

  8. Remove the wiper arm from the wiper arm drive pivot shaft.
  9. Clean the wiper drive pivot shaft knurls with a fine wire brush.
  10. Remove the wiper blade from the wiper arm. Refer to Windshield Wiper Blade Replacement .

Installation Procedure


    Object Number: 1912985  Size: SH
  1. Install the wiper blade onto the wiper arm. Refer to Windshield Wiper Blade Replacement .
  2. Install the wiper arm onto the wiper arm drive pivot shaft.
  3. Position the passenger side wiper arm so the wiper blade tip aligns with the orange dot on the lower outer edge of the windshield.
  4. Position the driver side wiper arm so that the wiper blade tip aligns with the orange dot on the lower center of the windshield.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the nut (2) on the wiper arm pivot shaft.
  7. Important: Hold the wiper arm into position while tightening the nut.

    Tighten
    Tighten to 32 N·m (24 lb ft).

  8. Install the windshield wiper arm nut caps (1).

  9. Object Number: 776829  Size: SH
  10. Operate the wipers and wash pattern (2) in order to verify the operation and park position of the wiper arms.
  11. Verify the driver side wiper does not exceed the wipe area (3).