GM Service Manual Online
For 1990-2009 cars only

The passenger compartment air filter is located near the passenger's side windshield wiper arm, under the inlet grille.

The filter traps most of the pollen from entering the climate control system. Similar to the engine's air filter, it may need to be changed periodically to insure system performance. See Scheduled Maintenance for more information.

To change the passenger compartment air filter,

  1. Turn the ignition to ACC/ACCESSORY and the windshield wipers on.
  2. Turn the ignition to LOCK/OFF when the windshield wipers are in the upright position.
  3. Raise the hood.
  4. Disconnect the windshield washer pump hose from the fender rail and the air inlet grille.
  5. Remove the hood weather-strip from the passenger's side of the vehicle, peeling it back halfway.

  6. Object Number: 1640813  Size: B1
  7. Remove the two air inlet grille retainers using a flat tool to first pry up on the center post and then the remainder of the fastener can be pulled out.
  8. Remove the air inlet grille by sliding it down to disengage the two tabs that hold it to the bottom of the windshield glass. Place the grille on the windshield while you remove the filter. Do not try to remove the grille from the vehicle because it is still attached on the right side of the vehicle by a fastener.

  9. Object Number: 809369  Size: B3
  10. Remove the water deflector.
  11. Remove the passenger compartment air filter.
  12. Install a new passenger compartment air filter. Make sure it slides under the compartment retainers. Be sure the long rubber water deflector above the filter stays in place.
  13. Reverse steps 1 through 8.