GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the left side A-pillar defogger duct from under the instrument panel.

  2. Object Number: 276277  Size: SH
  3. Disconnect the wiring harness connector (3).
  4. Twist the switch counterclockwise in order to release the switch (4) from the retainer (2).
  5. Pull the switch rearward in order to remove the switch from the retainer.

Installation Procedure


    Object Number: 276277  Size: SH
  1. Install the switch (4) into the retainer (2).
  2. Slide the switch into the retainer until the switch plunger is fully depressed into the switch barrel. Orient the switch connector toward the one o'clock position.
  3. Twist the switch clockwise until travel stop is reached. The switch connector will face the three o'clock position when the switch is locked.
  4. Connect the wiring harness connector (3).
  5. Install the left side A-pillar defogger duct.