GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 TrailBlazer - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Ambient Light Sensor Replacement

Removal Procedure
  1. Remove the windshield garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement .
  2. Remove the trim pad. Refer to Instrument Panel Upper Trim Pad Replacement .

    3. Important: Cover the windshield defrost vents with clean shop rags.


    Object Number: 718025 Size: SH
  3. Disconnect the electrical connector from the sensor.

    4. Object Number: 729432 Size: SH
  4. In order to remove the sensor from the trim pad, rotate the sensor counterclockwise 1/4 turn .
  5. Remove the sensor from the trim pad.

Installation Procedure

    Object Number: 729432 Size: SH
  1. Position the sensor to the trim pad.
  2. In order to install the sensor to the trim pad, rotate the sensor clockwise 1/4 turn .

    3. Object Number: 718025 Size: SH
  3. Position the trim pad to the upper portion of the instrument panel (I/P).
  4. Connect the electrical connector to the sensor.
  5. Remove the shop rags from the windshield defrost vents.
  6. Install the trim pad to the I/P. Refer to Instrument Panel Upper Trim Pad Replacement .
  7. Install the windshield garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement .