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Buick Lucerne 2007 - Page 189

Buick Lucerne 2007
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h (Auto Recirculation): If AUTO is selected
on either the fan or mode control, the system
will automatically control the air inlet to supply
fresh outside air or recirculate the interior air
to cool the car faster. The indicator light on the
recirculation button will light whenever the system
switches to recirculation. You may force outside
air by pressing the outside air button. The next
time AUTO fan or mode is selected, the air inlet
will reset back to AUTO operation.
Manual Operation
9(Fan): Turn the left knob either to the left or
right to adjust the fan speed. Turning this
control completely counterclockwise will turn on
the automatic fan operation.
If the airflow seems low when the fan speed is at
the highest setting, the passenger compartment
air filter may need to be replaced. For more
information, see Passenger Compartment Air Filter
on page 194 and Scheduled Maintenance on
page 444.
9(Off): Turn the left control to this position to
turn the entire climate control system off.
To change the current mode, select one of the
following positions using the right control:
F (Vent): Turn the control to this mode to direct
air to the instrument panel outlets.
* (Bi-Level): Turn the control to this mode to
direct about half of the air to the instrument panel
outlets and most of the remaining air to the
floor outlets. In automatic operation, cooler air is
directed to the upper outlets and warmer air to the
floor outlets.
7 (Floor): Turn the control to this mode to direct
most of the air to the floor outlets with some air
directed to the side window outlets and the
windshield.
The mode control can also be used to select the
floor/defog mode. Information on defogging
and defrosting can be found later in this section.
# (Air Conditioning): Press this button to
override the automatic system and turn the air
conditioning system on or off. When in AUTO,
the air conditioning compressor will come
on automatically, as necessary.
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