GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 640435  Size: SH
  1. Using a flat blade, carefully pry around the edges of the air outlet vent assembly and pull the vent rearward.
  2. Remove the air outlet vent.
  3. Disconnect the electrical connector from the switch.

  4. Object Number: 640436  Size: SH
  5. Depress the switch retaining tabs (1) to release the switch from the air outlet vent.

Installation Procedure


  1. Object Number: 640437  Size: SH
  2. Snap the switch into the air outlet vent.
  3. Connect the electrical connector to the switch.

  4. Object Number: 640438  Size: SH
  5. Align the air outlet vent to the vent opening.
  6. Push the air outlet vent into the opening until the retainers are engaged.
  7. Check for proper operation and movement of the air outlets.