GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39637 Wiper Arm Removal Tool

Removal Procedure


    Object Number: 871364  Size: SH
  1. Turn the ignition ON.
  2. Turn the wiper switch to DELAY.
  3. Turn the ignition OFF when the wiper arms are paused at the bottom of the wipe pattern.
  4. Remove the wiper arm nut cover.
  5. Remove the wiper arm nut.

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

Installation Procedure


    Object Number: 872389  Size: SH
  1. Install the wiper arms onto the wiper transmission.
  2. Align the wiper blades at the bottom of the wipe pattern.

  3. Object Number: 871364  Size: SH

    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.

  4. Install the wiper arm nut.
  5. Tighten
    Tighten the nut to 25 N·m (18 lb ft).

  6. Install the wiper arm nut cover.
  7. Operate the windshield wipers and inspect for proper operation.