Buick LaCrosse 2011 Owner's Manual page 242

8-2 Climate Controls
Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle
to the desired temperature.
When the AUTO indicator light is
on, the system is in full automatic
operation. If the air delivery mode,
fan speed, recirculation, or air
conditioning setting is adjusted,
the AUTO indicator turns off and
the selected settings will appear
on the display.
To place the system in automatic
mode do the following:
1. Press AUTO.
2. Set the temperature. Allow the
system time to stabilize. Adjust
the temperature as needed for
best comfort.
/ (Temperature Control):
Press to increase or decrease the
temperature.
Manual Operation
(Power): Press to turn the fan
on or off.
(Fan Control): Press to
increase or decrease the fan speed.
The fan speed setting appears
on the main display. Pressing
either button cancels automatic
fan control and the fan can be
controlled manually. Press AUTO
to return to automatic operation.
(Air Delivery Mode
Control): Press to change the
direction of the airflow. The current
mode appears in the display screen.
Pressing either button cancels
automatic air delivery control and
the direction of the airflow can be
controlled manually. Press AUTO
to return to automatic operation.
To change the current mode, select
one of the following:
(Vent): Air is directed to the
instrument panel outlets.
I n f o r ma t i o n P r o v i d e d b y :
(Bi-Level): Air is divided
between the instrument panel
outlets and the floor outlets.
(Tri Level): Air is divided
between the windshield, instrument
panel, and floor outlets.
(Floor): Air is directed to the
floor outlets.
-
(Defog): Clears the windows of
fog or moisture. Air is directed to the
windshield and floor outlets.
0
(Defrost): Clears the
windshield of fog or frost more
quickly. Air is directed to the
windshield. Selecting defrost
will disable automatic control.
For best results, clear all snow
and ice from the windshield before
defrosting.
#
(Air Conditioning): Press to
turn the air conditioning system
on or off. If the fan is turned off or
the outside temperature falls below
freezing, the air conditioning system
will not run.