GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Century 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Daytime Running Lamp (DRL) Ambient Light Sensor Replacement

Removal Procedure

    Object Number: 523503 Size: SH
  1. Remove the garnish molding from the right windshield pillar. Refer to Windshield Pillar Garnish Molding Replacement in Interior Trim.
  2. Starting at the right side, carefully lift upwards on the instrument panel (IP) upper trim panel in order to release the retainers from the IP upper trim pad. Work towards the left in order to access the daytime running lamp (DRL) ambient light sensor (1).
  3. Remove the DRL ambient light sensor from the IP upper trim panel by twisting the sensor 1/4 turn counterclockwise.
  4. Remove the DRL ambient light sensor from the DRL ambient light sensor connector.

Installation Procedure

    Object Number: 523503 Size: SH
  1. Install the daytime running lamp (DRL) ambient light sensor (1) to the DRL ambient light sensor connector.
  2. Position the DRL ambient light sensor to the opening in the instrument panel (IP) upper trim panel. Twist the DRL ambient light sensor 1/4 turn clockwise.
  3. Verify that the DRL ambient light sensor wiring harness will not be pinched when the IP upper trim panel is installed. Working from left to right, press down on the IP upper trim panel in order to engage the retainers to the IP upper trim pad.
  4. Install the garnish molding to the right windshield pillar. Refer to Windshield Pillar Garnish Molding Replacement in Interior Trim.