GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39637 Wiper Arm Removal Tool

Removal Procedure


    Object Number: 1201865  Size: SH
  1. Ensure that the wiper arms are set to the PARK position.
  2. Open the hood.

  3. Object Number: 1202124  Size: SH
  4. Disconnect the washer hose connectors from the air inlet grille panel.
  5. Remove the wiper arm nut finish cap.
  6. Remove the wiper arm nut.

  7. Object Number: 871365  Size: SH
  8. Using J 39637 , remove the wiper arm from the wiper pivot shaft.

Installation Procedure

    Important: The wiper arm nut must be hand-started to avoid cross-threading.


    Object Number: 872389  Size: SH
  1. Install the wiper arm onto the wiper module pivot shaft.
  2. Align the wiper blade to the wiper dots on the windshield.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1201865  Size: SH
  4. Install the wiper arm nut. Hold the wiper arm to the wiper dot as you tighten the nut.
  5. Tighten
    Tighten the nut to 35 N·m (25 lb ft).

  6. Install the wiper arm nut finish cap.

  7. Object Number: 1202124  Size: SH
  8. Connect the wiper arm washer hose connectors to the air inlet grille panel.
  9. Operate the windshield wipers and inspect for proper operation.
  10. Close the hood.