GM Owner Manuals - Buick

Operation Tips
• Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the flow of air into the vehicle.
• Use of non-GM approved hood deflectors may
adversely affect the performance of the system.
• Keep the path under the front seats clear of objects
to help circulate the air inside of the vehicle more
effectively.
• This vehicle has a passenger compartment air filter.
If the airflow seems low when the fan is at the highest
setting it may need to be replaced. For more
information, see Passenger Compartment Air
Filter on page 3-29.
To change the passenger compartment air filter, use the
following steps:
1. Turn the ignition to ACC/ACCESSORY and turn 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 air inlet grille.
5. Peel back the hood weather-strip from the
passenger’s side of the vehicle halfway to the
center of the hood.
Passenger Compartment Air Filter
The passenger compartment air filter is located in
the engine compartment below the air inlet grille,
near the passenger’s side windshield wiper arm.
See Engine Compartment Overview on page 5-12.
The filter traps most of the pollen from the air entering
the air conditioning module. The filter needs to be
changed periodically to keep the air conditioning working
at its best. For information on how often to change the
passenger compartment air filter, see Scheduled
Maintenance on page 6-4.
6. Remove the three air inlet grille retainers.
7. Remove the air inlet grille.
8. Remove the water deflector panel.
3-29