Buick 2004 Park Avenue - Manual (Page 147)

Outlet Adjustment
Use the thumbwheel
located in the middle of the
front outlets to change
the direction of the airflow
and to open and close
the outlets.
Use the thumbwheel
located between the rear
passenger outlets to open
and close the outlets.
Adjust the direction of the
airflow from side to side
with the levers in the center
of each rear outlet.
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 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.
• If the airflow seems low when the fan is at the
highest setting, the passenger compartment air filter
may need to be replaced. See Passenger
Compartment Air Filter on page 3-30.
3-29