Outlet Adjustment; Passenger Compartment Air Filter - Chevrolet 2009 Impala Owner's Manual

Outlet Adjustment

Use the thumbwheel located below or to the side of the
outlet, to change the direction of the air flow.
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 the vehicle more
effectively.
•
If the airflow seems low when the fan is at the
highest setting, the passenger compartment air
filter, if equipped, may need to replaced. For more
information, see Passenger Compartment Air Filter
on page 3-23 and Scheduled Maintenance on
page 6-4.
•
If fogging reoccurs while in vent or bi-level modes
with mild temperature throughout the vehicle, turn
on the air conditioner to reduce windshield fogging.

Passenger Compartment Air Filter

The vehicle has a passenger compartment particulate
air filter. It is located in the engine compartment,
below the air inlet grille on the passenger side.
The filter traps most of the pollen from air
entering the climate control system. It needs to be
changed periodically to ensure system performance.
For information on how often to change the passenger
compartment air filter, see Scheduled Maintenance on
page 6-4.
To change the passenger compartment air filter:
1. Turn off the ignition when the windshield wipers are
in the up position.
2. Raise the vehicle hood.
3. Pull back the hood weatherstrip from the
passengers side of the vehicle halfway to center.
3-23