GM Service Manual Online
For 1990-2009 cars only

Removal Procedure - Sensor Rear

  1. Remove the rear bumper fascia assembly. Refer to Rear Bumper Fascia Replacement.

  2. Object Number: 1958020  Size: SH
  3. Disconnect the rear object alarm sensor electrical connectors (1) from the rear object alarm sensors.

  4. Object Number: 1958033  Size: SH

    Important: Lift the top and bottom housing tabs (1) to release the rear object alarm sensor (2) from the rear object alarm sensor housing (3).

  5. Remove the rear object alarm sensor (2) from the rear object alarm sensor housing (3).

Installation Procedure - Sensor Rear


    Object Number: 1958033  Size: SH

    Important: Replacement rear object alarm sensors (2) are pre-painted in the vehicles body colour. Do not apply any further paint to the rear object alarm sensor (2) as this may affect system operation.

    Important: Ensure that the rear object alarm sensor (2) is installed correctly.

  1. Locate the top and bottom housing tabs (1) to install the rear object sensor alarm sensor (2) to the rear object sensor alarm sensor housing (3)
  2. Press the rear object alarm sensor bezel flush to the fascia.

  3. Object Number: 1958020  Size: SH
  4. Connect the rear object alarm sensor electrical connectors (1) to the rear object alarm sensors.
  5. Install the rear bumper fascia assembly. Refer to Rear Bumper Fascia Replacement .

Removal Procedure - Wiring Harness Rear

  1. Remove rear bumper fascia assembly. Refer to Rear Bumper Fascia Replacement.

  2. Object Number: 1958020  Size: SH
  3. Disconnect the rear object alarm sensor electrical connectors (1) from the rear object alarm sensors.

  4. Object Number: 1958022  Size: SH

    Important:  If required use a suitable tool to pry the wiring harness away from bumper fascia connectors (1).

  5. Remove the rear object alarm sensor wiring harness from bumper fascia connectors (1).

Installation Procedure - Wiring Harness Rear


    Object Number: 1958022  Size: SH
  1. Install the rear object alarm sensor wiring harness to bumper fascia connectors (1).

  2. Object Number: 1958020  Size: SH
  3. Connect the rear object alarm sensor electrical connectors (1) to the rear object alarm sensors.
  4. Install the rear bumper. Refer to Rear Bumper Fascia Replacement.