Buick 2009 Enclave - Manual (Page 149)

Air Delivery Mode Controls: Use these buttons to
change the direction of the airflow inside the vehicle.
6 (Floor): Air is directed to the floor, with some
air directed to the side window outlets and a small
amount to the windshield.
) (Bi-Level): Air is divided between the instrument
panel and floor outlets, with some air directed to
the windshield and the side window outlets.
Y (Vent): Air is directed to the instrument panel
outlets.
- (Floor/Defog): This mode clears the windows of
fog or moisture. Air is directed to the windshield, floor
outlets and side windows. In this mode, the system turns
recirculation off and runs the air conditioning compressor
unless the outside temperature is near or below freezing.
Pressing the recirculation button will have no effect
other than turning on the indicator light while in floor/
defog mode.
1 (Defrost): This mode clears the windows of fog
or frost more quickly. Air is directed to the windshield,
with some air directed to the side windows. In this mode,
the system automatically turns off the recirculation and
runs the air conditioning compressor, unless the outside
temperature is near or below freezing. Pressing the
recirculation button will have no effect other than turning
on the indicator light while in defrost mode.
Do not drive the vehicle until all windows are clear.
# (Air Conditioning): Press to turn the air
conditioning compressor on and off. An indicator
light comes on to show that the air conditioning is on.
The indicator light changes with each button press
even when conditions prevent operation.
h (Recirculation): Press to turn the recirculation
mode on or off. This mode recirculates and helps to
quickly cool the air inside the vehicle. It can be used to
prevent outside air and odors from entering the vehicle.
Recirculation is not available while in the floor, defrost, or
floor/defog modes. Using recirculation for long periods of
time may cause the air inside the vehicle to become too
dry. Recirculation mode has a five minute timer after
which the system allows for some fresh outside air into
the vehicle to maintain interior air quality.
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