2012 BUICK LACROSSE air condition

Black plate (5,1)Buick LaCrosse Owner Manual - 2012
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
%:Audio Steering Wheel Controls
or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
j: LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak®
M:Windshield Washer Fluid

Black plate (10,1)Buick LaCrosse Owner Manual - 2012
1-10 In Brief
Passenger Sensing
System
The passenger sensing system
turns off the front outboard
passenger frontal airbag under
certain conditions. No other airbag
is affected by the passenger
sensing system.
The passenger airbag status
indicator will be visible on the
instrument panel when the vehicle is
started. SeePassenger Sensing
System on page 3‑29 for important
information.
Mirror Adjustment
Exterior
To adjust the mirrors:
1. Turn the control knob to the L (left) or R (right) selecting the
driver or passenger mirror.
2. Push the control knob to the left, right, up, or down to adjust the
mirror. Vehicles with the memory feature
can store a preferred mirror position.
See
“Memory Seats” underPower
Seat Adjustment on page 3‑5 for
more information.
See Power Mirrors on page 2‑17.
Manual Foldaway Mirrors
These mirrors can be folded inward
to prevent damage when going
through an automatic car wash. To
fold, pull the mirror toward the
vehicle. Push the mirror outward to
return it to the original position.
SeeFolding Mirrors on page 2‑17.
Automatic Dimming Feature
The vehicle may have an automatic
dimming driver outside mirror.
Automatic dimming reduces the
glare of the headlamps behind you.
SeePower Mirrors on page 2‑17.

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 (15,1)Buick LaCrosse Owner Manual - 2012
In Brief 1-15
Dual Automatic Climate Control System for 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 (16,1)Buick LaCrosse Owner Manual - 2012
1-16 In Brief
Dual Automatic Climate Control System for 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. Eco Air Conditioning
K. Comfort Air Conditioning
L. ZONE
See
Automatic Climate Control
System on page 8‑1 (If Equipped) or
Dual Automatic Climate Control
System on page 8‑5 (If Equipped).
Transmission
Automatic Transmission
Driver Shift Control (DSC)
Driver Shift Control (DSC) allows
shifting an automatic transmission
similar to a manual transmission.
DSC can be enabled through the
shift lever. SeeManual Mode on
page 9‑33.

Black plate (22,1)Buick LaCrosse Owner Manual - 2012
1-22 In Brief
Express-open/Express-close:To
express-open the sunroof, fully
press and release the rear of the
switch (B). To express-close, fully
press and release the front of the
switch (A). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
To express-open the sunshade, fully
press and release the rear of the
switch (C). To stop the sunshade
partway, press the switch a second
time. To express-close, fully press
and release the front of the
switch (D). To stop the sunshade
partway, press the switch a
second time.
See Sunroof on page 2‑22.eAssist Features
eAssist®Overview
If the vehicle has eAssist, there are
several additional features which
contribute to increased efficiency.
Vehicles with eAssist have an
automatic engine start/stop feature.
This feature saves fuel by shutting
the engine off when the vehicle is
stopped. When the engine shuts off
automatically, all the accessories
will continue to operate normally. In
very hot or cold conditions, the
engine will only shut off
automatically part of the time. See
Starting the Engine on page 9‑22.
There are two air conditioning
settings available. The comfort
setting maximizes cabin comfort.
The eco setting maximizes
efficiency allowing more frequent,
and longer engine stops than the
comfort setting. See Dual Automatic
Climate Control System on
page 8‑5. This vehicle has a Hill Start Assist
(HSA) feature, which may be useful
when the vehicle is stopped on a
grade. See
Hill Start Assist (HSA)
on page 9‑38.
Vehicles with eAssist have a slightly
different instrument cluster, which
includes an efficiency gauge, and
an AUTO STOP indicator on the
tachometer. See Instrument Cluster
on page 5‑10. There is also a Power
Flow Gauge in the Driver
Information Center (DIC). See
Driver Information Center (DIC) on
page 5‑27.
The eAssist system uses a high
voltage battery, which is cooled with
air drawn from the vehicle interior.

Black plate (25,1)Buick LaCrosse Owner Manual - 2012
In Brief 1-25
Service
Never try to do your own service on
eAssist components. You can be
injured and the vehicle can be
damaged if you try to do your own
service work. Service and repair of
these high voltage components
should only be performed by a
trained service technician with the
proper knowledge and tools. See
Doing Your Own Service Work on
page 10‑4.
Performance and
Maintenance
Traction Control
System (TCS)
The traction control system limits
wheel spin. The system turns on
automatically every time the vehicle
is started.
.To turn off traction control, press
and release the Traction Control
System (TCS)/StabiliTrak button
located on the console to the
right of the shift lever.
i
illuminates and the appropriate
DIC message is displayed. See
Ride Control System Messages
on page 5‑40.
.Press and release the TCS/
StabiliTrak button again to turn
on traction control.
For more information, see Traction
Control System (TCS) on
page 9‑38.
StabiliTrak®System
The StabliTrak system assists with
directional control of the vehicle in
difficult driving conditions. The
system turns on automatically every
time the vehicle is started.
.To turn off both TCS and
StabiliTrak, press and hold the
TCS/StabiliTrak button, located
on the console to the right of the
shift lever, until
iandg
illuminate and the appropriate
DIC message is displayed. See
Ride Control System Messages
on page 5‑40.
.Press and release the TCS/
StabiliTrak button to turn on both
systems.
For more information, see
StabiliTrak
®System on page 9‑40.

Black plate (29,1)Buick LaCrosse Owner Manual - 2012
Seats and Restraints 3-29
Passenger Sensing
System
The vehicle has a passenger
sensing system for the front
outboard passenger position. The
passenger airbag status indicator
will light on the instrument panel
when the vehicle is started.
The words ON and OFF will be
visible during the system check.
If you use remote start, if equipped,
to start the vehicle from a distance
you may not see the system check.
When the system check is
complete, either the word ON or the
word OFF will be visible. See
Passenger Airbag Status Indicator
on page 5‑16.
The passenger sensing system
turns off the front outboard
passenger frontal airbag under
certain conditions. No other airbag
is affected by the passenger
sensing system.The passenger sensing system
works with sensors that are part of
the front outboard passenger seat.
The sensors are designed to detect
the presence of a properly-seated
occupant and determine if the front
outboard passenger frontal airbag
should be allowed to inflate or not.
According to accident statistics,
children are safer when properly
secured in a rear seat in the correct
child restraint for their weight
and size.
We recommend that children be
secured in a rear seat, including: an
infant or a child riding in a
rear-facing child restraint; a child
riding in a forward-facing child seat;
an older child riding in a booster
seat; and children, who are large
enough, using safety belts.