GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: Mark the position of the wiper blade on the liftgate with a suitable marker or a piece of masking tape.


    Object Number: 439168  Size: SH
  1. Pull the washer hose through the liftgate grommet.
  2. Disconnect the washer hose from the washer harness connector.
  3. Lift the wiper arm off the liftgate.
  4. Push out the wiper arm retaining clip with a small screwdriver.
  5. Remove the wiper arm from the wiper motor drive shaft.

Installation Procedure


    Object Number: 439168  Size: SH
  1. Position the wiper arm onto the wiper motor drive shaft so the tip of the blade aligns with the mark made at removal.
  2. Install the wiper arm onto the drive shaft.
  3. Press in the retaining clip.
  4. Connect the washer hose onto the washer harness connector.
  5. Insert the hose into the liftgate grommet.

Inspection Procedure

    • Run the wiper and check for the proper wipe pattern.
    • Turn the wiper off and check for the correct park position.