2012 BUICK LACROSSE heating

Black plate (14,1)Buick LaCrosse Owner Manual - 2012
1-14 In Brief
Climate Controls
The heating, cooling, and ventilation for the vehicle can be controlled with
these systems.
Automatic Climate Control System
A. Power
B. Temperature Control
C. Fan Control
D. Air Delivery Mode Control
E. Recirculation F. AUTO (Automatic Operation)
G. Defrost
H. Air Conditioning
I. Rear Window Defogger

Black plate (3,1)Buick LaCrosse Owner Manual - 2012
Instruments and Controls 5-3
b/g(Push to Talk):For vehicles
with a Bluetooth®, OnStar,
or navigation system, press to
interact with those systems. See
Bluetooth (Overview) on page 7‑57
or Bluetooth (Infotainment Controls)
on page 7‑59 orBluetooth (Voice
Recognition) on page 7‑63 or
Bluetooth (UHP Mexico Only) on
page 7‑69, OnStar Overview on
page 14‑1, or the navigation manual
for more information.
$/i(Mute/End Call): Press to
silence the vehicle speakers only.
Press again to turn the sound on.
For vehicles with OnStar or
Bluetooth systems, press to reject
an incoming call, or end a
current call.
_SRC^(Thumbwheel Control):
Turn to select an audio source.
Press
_or^to select the next or
previous favorite radio station, CD,
or MP3 track. +
x−
(Volume): Press + to
increase the volume. Press −to
decrease the volume.
Heated Steering Wheel
For vehicles with a heated steering
wheel, the button for this feature is
located on the climate control
system.
(: Press to turn the heated
steering wheel on or off. A light on
the button displays when the feature
is turned on.
The steering wheel takes about
three minutes to start heating.
Horn
Pressaon the steering wheel
pad to sound the horn.
Windshield Wiper/Washer
The windshield wiper lever is on the
right side of the steering column.
With the ignition in ACC/
ACCESSORY or ON/RUN, move
the windshield wiper lever to select
the wiper speed.
2: Use for fast wipes.
1: Use for slow wipes.

Black plate (14,1)Buick LaCrosse Owner Manual - 2012
5-14 Instruments and Controls
Engine Coolant
Temperature Gauge
Metric
English
This gauge shows the engine
coolant temperature.
If the gauge pointer moves toward
the shaded area, the engine is
too hot. In eAssist vehicles, the engine
coolant warning light comes on
when the engine is too hot. See
Engine Coolant Temperature
Warning Light on page 5‑24
in this
section.
This reading indicates the same
thing as the warning light. It means
that the engine coolant has
overheated. If the vehicle has been
operating under normal driving
conditions, pull off the road, stop the
vehicle, and turn off the engine as
soon as possible. See Engine
Overheating on page 10‑19 for more
information.

Black plate (24,1)Buick LaCrosse Owner Manual - 2012
5-24 Instruments and Controls
Engine Coolant
Temperature Warning
Light
For eAssist vehicles, this light
comes on briefly while starting the
vehicle.
If it does not, have the vehicle
serviced by the dealer. If the system
is working normally, the indicator
light goes off.
Notice:Driving with the engine
coolant temperature warning light
on could cause the vehicle to
overheat. See Engine Overheating
on page 10‑19. The vehicle's
engine could be damaged, and it
might not be covered by the vehicle warranty. Never drive with
the engine coolant temperature
warning light on.
The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens pull over and turn off
the engine as soon as possible. See
Engine Overheating on page 10‑19
for more information.Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. See
Vehicle Messages on
page 5‑35 for more information.
Stop as soon as possible, and
inflate the tires to the pressure value
shown on the Tire and Loading
Information label. See Tire Pressure
on page 10‑54 for more information.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See Tire Pressure Monitor
Operation on page 10‑57 for more
information.

Black plate (1,1)Buick LaCrosse Owner Manual - 2012
Climate Controls 8-1
Climate Controls
Climate Control Systems
Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-1
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . 8-5
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-10
Maintenance
Air Intake . . . . . . . . . . . . . . . . . . . . 8-11
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Climate Control Systems
Automatic Climate Control System
For vehicles with this system, it controls the heating, cooling, and ventilation.
A. Power
B. Temperature Control
C. Fan Control
D. Air Delivery Mode Control
E. Recirculation F. AUTO (Automatic Operation)
G. Defrost
H. Air Conditioning
I. Rear Window Defogger

Black plate (4,1)Buick LaCrosse Owner Manual - 2012
8-4 Climate Controls
For vehicles with heated outside
rearview mirrors, they turn on when
the rear window defogger button is
on and help to clear fog or frost from
the surface of the mirror. See
Heated Mirrors on page 2‑18.
Notice:Do not try to clear frost
or other material from the inside
of the front windshield and rear
window with a razor blade or
anything else that is sharp. This
may damage the rear window
defogger grid and affect your
radio's ability to pick up stations
clearly. The repairs would not be
covered by your warranty. Remote Start Climate Control
Operation (If Equipped):
When
the vehicle is started remotely, the
climate control system will use the
last setting before the vehicle shut
off. If automatic operation was set,
the fan speed will adjust to
maximize heating or cooling.
If manual operation was set, the fan
speed will be limited to the last
setting. In extreme temperatures,
the system may not be able to heat
or cool the vehicle to the preset
temperature during the remote start
run time.
The rear window defogger turns on
if it is cold outside.Sensor
The solar sensor, located on top of
the instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
Do not cover the sensor; otherwise
the automatic climate control system
may not work properly.

Black plate (5,1)Buick LaCrosse Owner Manual - 2012
Climate Controls 8-5
Dual Automatic Climate Control System
For vehicles with this system, it controls the heating, cooling, and ventilation.
Non-eAssist Vehicles
A. Power
B. Driver Temperature Control
C. Defrost
D. Fan Control
E. Air Delivery Mode Control
F. Recirculation/Automatic Recirculation G. Passenger Temperature Control
H. AUTO (Automatic Operation)
I. Rear Window Defogger
J. Heated Steering Wheel
K. Air Conditioning
L. ZONE

Black plate (10,1)Buick LaCrosse Owner Manual - 2012
8-10 Climate Controls
For vehicles with heated outside
rearview mirrors, they turn on when
the rear window defogger button is
on and help to clear fog or frost from
the surface of the mirror. See
Heated Mirrors on page 2‑18.
Notice:Do not try to clear frost
or other material from the inside
of the front windshield and rear
window with a razor blade or
anything else that is sharp. This
may damage the rear window
defogger grid and affect your
radio's ability to pick up stations
clearly. The repairs would not be
covered by your warranty.
((Heated Steering Wheel): For
vehicles with this feature, press to
turn on or off. See Heated Steering
Wheel on page 5‑3.
Remote Start Climate Control
Operation (If Equipped): When
the vehicle is started remotely, the
climate control system will use the
last setting before the vehicle shut
off. If automatic operation was set,
the fan speed will adjust to maximize heating or cooling.
If manual operation was set, the fan
speed will be limited to the last
setting. In extreme temperatures,
the system may not be able to heat
or cool the vehicle to the preset
temperature during the remote start
run time.
The rear window defogger turns on
if it is cold outside.
Sensor
The solar sensor, located on top of
the instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
Do not cover the sensor; otherwise
the automatic climate control system
may not work properly.
Air Vents
Use the louvers located on the air
vents to change the direction of the
airflow.
To open the vent, move the
thumbwheel to
t. To close the vent,
move the thumbwheel to
l.
For vehicles with eAssist, there is a
battery cooling air vent located on
the shelf behind the rear passenger
seats below the rear window. Keep
this air inlet clear from items that
may block air flow. Proper airflow is
required to keep the eAssist battery
and control system cool.