Buick 2011 Lucerne - Manual (Page 174)

Black plate (18,1) Buick Lucerne Owner Manual - 2011
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(Floor/Defog): This clears the windows of fog or
moisture. Air is directed to the windshield and side
window outlets and to the floor outlets. The system runs
the air conditioning compressor unless the outside
temperature is near or below freezing.
0
(Defrost): This mode clears the windshield of fog
or frost more quickly. Air is directed to the windshield
and side window outlets. The system runs the air
conditioning compressor unless the outside temperature
is near or below freezing.
# (Air Conditioning): Press to turn the air
conditioning system on or off. An indicator light
below the button comes on to show that this mode
is on. Air conditioning can be selected in any mode
as long as the fan knob is not in the off position.
On hot days during the vehicle's initial start-up, open
the windows to let hot inside air escape; then close
them. This helps to reduce the time it takes for the
vehicle to cool down. It also helps the system to operate
more efficiently.
For quicker cool down on hot days, do the following:
1. Select
H
.
2. Select h .
3. Select # .
4. Select the coolest temperature.
5. Select the highest fan speed.
The air-conditioning system removes moisture from the
air, so a small amount of water might drip under the
vehicle while idling or after turning off the engine. This
is normal.
h
(Recirculation): Press to turn the recirculation
mode on. An indicator light below the button comes on
to show that this mode is on. 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. This mode cannot be selected
while in the defog or defrost modes. If you try to select
the recirculation mode, the indicator light flashes
three times and turns off.
Operation in this mode during periods of high humidity
and cool outside temperatures may result in increased
window fogging. If window fogging is experienced,
select the defrost mode.
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