2004 L-Series Automobile Owner's Manual

Outlet Adjustment
Use the louvers located on the air outlets to change the
direction of the airflow.
Operation Tips
Clear away any ice, snow or leaves from the air
inlets at the base of the vehicle that may block
the flow of air into your 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 your vehicle more
effectively.
Passenger Compartment Air Filter
Your vehicle may be equipped with a passenger
compartment air filter. It is located underneath the hood
just below the windshield wiper arm on the passenger’s
side of the vehicle.
The filter traps most of the pollen from air entering the
Climate Control System. Like your engine’s air
cleaner/filter, it may need to be changed periodically to
insure system performance. For information on how
often to change the passenger compartment air
filter, see Scheduled Maintenance on page 6-4.
For the type of filter to use, see Normal Maintenance
Replacement Parts on page 6-13.
To change the passenger compartment air filter, use the
following steps:
1. Open the hood. Locate the passenger compartment
air filer access panel.
2. Peel back the hood weatherstrip from the
passenger’s side of the vehicle halfway to center.
3. Use a tool to open the passenger compartment air
filter access door.
4. Remove any leaves or other debris from the
filter area.
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