Outlet Adjustment; Passenger Compartment Air Filter - Buick 2008 Allure Owner's Manual

Rear Window Defogger
The rear window defogger uses a warming grid to remove
fog or frost from the rear window. The rear window
defogger will only work when the engine is running.
=
(Rear Window Defogger): Press this button to turn
the rear window defogger on and off. Be sure to clear
as much snow from the rear window as possible.
The rear window defogger will turn off about 20 minutes
after the button is pressed. If turned on again, the
defogger will only run for about 20 minutes before turning
off. The defogger can also be turned off by pressing the
button again or by turning off the engine.
Do not drive the vehicle until all the windows are clear.
Notice: Do not use a razor blade or sharp object
to clear the inside rear window. Do not adhere
anything to the defogger grid lines in the rear glass.
These actions may damage the rear defogger.
Repairs would not be covered by your warranty.

Outlet Adjustment

Use the thumbwheels located between the center
outlets to open and close the outlets. Move the
lever in the center of each air outlet to adjust the
direction of the airflow.
3-28
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 3-28.

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.