GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the windshield pillar garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement .

  2. Object Number: 712816  Size: SH
  3. Starting at the outboard edges, release the trim pad retaining clips.

  4. Object Number: 729432  Size: SH
  5. Rotate the ambient light sensor counterclockwise 1/4 turn in order to release the sensor from the trim pad.
  6. Remove the trim pad from the vehicle.
  7. Important: Cover the windshield defrost vents with clean shop rags.

  8. Disconnect the electrical connector from the ambient light sensor and retain the sensor for installation.

Installation Procedure


    Object Number: 729432  Size: SH
  1. In order to install the ambient light sensor to the trim pad, rotate the sensor clockwise 1/4 turn ensuring the retaining tabs are fully seated.

  2. Object Number: 718025  Size: SH
  3. Position the trim pad to the instrument panel (I/P).
  4. Connect the electrical connector to the ambient light sensor.
  5. Remove the shop rags from the windshield defrost vents.

  6. Object Number: 712816  Size: SH
  7. Align the locating stems to the I/P substrate.
  8. Install the trim pad by seating the retaining clips to the I/P substrate.
  9. Install the windshield pillar garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement .