GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Terraza 🢒 Body 🢒 Wipers/Washer Systems 🢒 Rear Window Wiper Motor Replacement

Removal Procedure

    Object Number: 1480116 Size: SH
  1. Remove the rear wiper arm (5). Refer to Rear Window Wiper Arm Replacement .
  2. Remove the rear wiper motor drive shaft nut (6).
  3. Remove the washer (7) and seal (8) from the wiper motor drive shaft.

    4. Object Number: 1480120 Size: SH
  4. Remove the liftgate trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.
  5. Disconnect the electrical connector (1) from the rear wiper motor.
  6. Remove the rear wiper motor screws.
  7. Remove the rear wiper motor (3) from the liftgate (5).
  8. Remove the rear wiper motor from the vehicle.

Installation Procedure

    Object Number: 1480120 Size: SH
  1. Position the rear wiper motor (3) to the liftgate.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the rear wiper motor screws.

    3. Tighten
    Tighten the screws to 6 N·m (53 lb in).

  3. Connect the electrical connector (1) to the wiper motor.

    4. Object Number: 1480116 Size: SH
  4. Install the washer (7) and seal (8) onto the rear wiper motor drive shaft.
  5. Install the rear wiper motor drive shaft nut (6).

    6. Tighten
    Tighten the nut to 6 N·m (53 lb in).

  6. Install the rear wiper arm. Refer to Rear Window Wiper Arm Replacement .
  7. Inspect rear wiper for proper operation.
  8. Install the liftgate trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.