GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 497517  Size: SH
  1. Remove the defroster grille. Refer to Defroster Grille Replacement .
  2. Remove the sunload and twilight sentinel sensor (2) from the defroster grill (1) by turning 1/4 turn counter clockwise.
  3. Disconnect the electrical connector from the sunload and twilight sentinel sensor (2).

Installation Procedure


    Object Number: 497517  Size: SH
  1. Connect the electrical connector to the sunload and twilight sentinel sensor (2).
  2. Install the sunload and twilight sentinel sensor (2) to the defroster grill (1).
  3. Turn the sunload and twilight sentinel sensor 1/4 turn clockwise in order to secure the sensor to the defroster grill.
  4. Install the defroster grille (1). Refer to Defroster Grille Replacement .