GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2004 🢒 XLR 🢒 Accessories 🢒 Rear Parking Assist 🢒 Rear Object Sensor Replacement

Removal Procedure
  1. Remove the rear fascia. Refer to Rear Bumper Fascia Replacement .

    2. Object Number: 1238910 Size: SH
  2. Disconnect the electrical connector (1) from the rear object sensor.

    3. Object Number: 1238909 Size: SH
  3. Release the locking tabs (1) attaching the sensor to the sensor housing.

    4. Object Number: 1238906 Size: SH
  4. Remove the rear object sensor (1) from the sensor housing.

    5. Object Number: 1238903 Size: SH
  5. Remove the rear object sensor retainer ring (1) from the sensor.

Installation Procedure

    Important: Do not refinish previously painted sensors. Excess paint build up will cause the sensor to be inoperative

  1. Paint the new rear object sensor. Refer to Basecoat/Clearcoat Paint Systems .
  2. Ensure the paint thickness does not exceed 6 mils. Use a paint thickness gage suitable for non-ferrous metals. Refer to Paint Gages .

    3. Object Number: 1238903 Size: SH
  3. Install the sensor retainer ring (1) to the sensor.

    4. Object Number: 1238906 Size: SH
  4. Position the sensor (1) to the sensor housing.

    5. Object Number: 1238909 Size: SH
  5. Install the sensor to the sensor housing until the sensor (1) is fully seated.

    6. Object Number: 1238910 Size: SH
  6. Connect the electrical connector (1) to the sensor.
  7. Install the rear fascia. Refer to Rear Bumper Fascia Replacement .