GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 497517  Size: SH
  1. Remove the defroster grille (1) by carefully prying upward to release the retainers.
  2. Disconnect the electrical connector from the ambient light sensor (2).
  3. Remove the ambient light sensor (2) from the defroster grille (1) by turning counterclockwise 1/4 turn.

Installation Procedure


    Object Number: 497517  Size: SH
  1. Install the ambient light sensor (2) into the defroster grille (1).
  2. Turn the ambient light sensor 1/4 turn clock wise in order to secure the sensor to the defroster grill.
  3. Connect the electrical connector to the ambient light sensor (2).
  4. Align defroster grille with I/P upper trim pad.
  5. Secure the defroster grille to I/P upper trim pad by pressing downward in order to engage the retainers.