GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1378645  Size: SH
  1. Open hood to access wiper arm nut.
  2. Remove wiper arm nut.
  3. Lift wiper arm assembly away from windshield and remove wiper arm from pivot shaft.

Installation Procedure


    Object Number: 1378643  Size: SH
  1. Position wiper blade assembly at the dot in lower portion of windshield blackout strip on driver side of vehicle.
  2. Position wiper blade assembly at the dot in windshield pillar portion of windshield blackout strip on passenger side of vehicle.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1378645  Size: SH
  4. Install the wiper arm nut.
  5. Tighten
    Tighten the nut to 28 N·m (21 lb ft).

  6. Operate the windshield wipers and inspect for proper operation.