GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39637 Wiper Arm Puller

Removal Procedure


    Object Number: 1480118  Size: SH
  1. Open and support the hood.
  2. Disconnect the washer hose from the front washer pump hose (5).
  3. Remove the wiper arm nut cover (3).
  4. Remove the wiper arm nut (4).

  5. Object Number: 1527651  Size: SH
  6. Using the J 39637 , remove the wiper arm from the wiper drive system module.

  7. Object Number: 497492  Size: SH
  8. Remove the wiper blade from the wiper arm connection.

Installation Procedure


    Object Number: 1480133  Size: SH
  1. Install the wiper blade onto the wiper arm.
  2. Position the wiper arm onto the wiper arm pivot shaft.
  3. Align the wiper blade tip to the horizontal mark on the windshield within the blackout area (a or b).
  4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1480118  Size: SH

    Important: Hold the wiper arm into position (1) while tightening the nut.

  5. Install the wiper arm nut (4).
  6. Tighten
    Tighten the nut to 30 N·m (22 lb ft).

  7. Install the wiper arm nut cover (3).
  8. Connect the washer nozzle hose to the washer pump hose (5).
  9. Close the hood.
  10. Inspect the wipers for proper operation.