wheel BUICK LACROSSE 2012 Owner's Guide

Black plate (19,1)Buick LaCrosse Owner Manual - 2012
Instruments and Controls 5-19
The following may correct an
emissions system malfunction:
.Check that the fuel cap is fully
installed. SeeFilling the Tank on
page 9‑55. The diagnostic
system can determine if the fuel
cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel to
evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn the
light off.
.Check that good quality fuel is
used. Poor fuel quality causes
the engine not to run as
efficiently as designed and may
cause stalling after start-up,
stalling when the vehicle is
changed into gear, misfiring,
hesitation on acceleration,
or stumbling on acceleration.
These conditions might go away
once the engine is warmed up. If one or more of these conditions
occurs, change the fuel brand used.
It will require at least one full tank of
the proper fuel to turn the light off.
See
Recommended Fuel on
page 9‑53.
If none of the above have made the
light turn off, your dealer can check
the vehicle. The dealer has the
proper test equipment and
diagnostic tools to fix any
mechanical or electrical problems
that might have developed.Emissions Inspection and
Maintenance Programs
Some local governments may have
programs to inspect the on-vehicle
emission control equipment. For the
inspection, the emission system test
equipment is connected to the
vehicle’s Data Link
Connector (DLC).
The DLC is under the instrument
panel next to the steering wheel.
See your dealer if assistance is
needed.
The vehicle may not pass
inspection if:
.The malfunction indicator lamp is
on while the vehicle is running.
The vehicle is in ON/RUN for
keyed access, or service only
mode for keyless access and the
malfunction indicator lamp does
not come on. See your dealer for
assistance in verifying proper
operation of the malfunction
indicator lamp.

Black plate (22,1)Buick LaCrosse Owner Manual - 2012
5-22 Instruments and Controls
If the ABS light is the only light on,
the vehicle has regular brakes, but
the antilock brakes are not
functioning.
If both the ABS and the brake
system warning light are on, the
vehicle's antilock brakes are not
functioning and there is a problem
with the regular brakes. See your
dealer for service.
SeeBrake System Warning Light on
page 5‑20.
See Brake System Messages on
page 5‑36 for all brake related DIC
messages.Traction Off Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer.
This light comes on when the
Traction Control System (TCS) has
been turned off by pressing and
releasing the TCS/StabiliTrak
button.
This light also comes on and the
system turns off if there is a problem
with the traction control system.
If the light comes on and stays on
for an extended period of time while
the system is turned on, the vehicle
needs service. See
Traction Control System (TCS)
on page 9‑38 andStabiliTrak
®
System on page 9‑40 for more
information.
StabiliTrak®OFF Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer.
This light comes on when the
StabiliTrak system is turned off.
If the Traction Control System (TCS)
is off, wheel spin is not limited.
If StabiliTrak is off, the system does
not assist in controlling the vehicle.
Turn on the TCS and the StabiliTrak
system and the warning light
turns off.

Black plate (23,1)Buick LaCrosse Owner Manual - 2012
Instruments and Controls 5-23
SeeTraction Control System (TCS)
on page 9‑38 andStabiliTrak®
System on page 9‑40 for more
information.
Traction Control System
(TCS)/StabiliTrak®Light
The Traction Control System (TCS)/
StabiliTrak light comes on briefly
when the engine is started.
If the light does not come on, have
the vehicle serviced by the dealer.
If the system is working normally,
the indicator light turns off. If the light is on while certain DIC
messages display, this indicates
that the TCS and StabiliTrak
systems are not working or are
disabled.
If the light is on and not flashing, the
TCS and potentially the StabiliTrak
system have been disabled. Check
the DIC messages to determine
which feature(s) is no longer
functioning and whether it is
because of the driver turning off the
feature(s), or because the system is
not working properly and the vehicle
requires service.
If the TCS is disabled, wheel spin is
not limited. If the StabiliTrak system
is disabled, the system does not aid
in maintaining directional control of
the vehicle.
If the indicator/warning light is on
and flashing, the TCS or the
StabiliTrak system is actively
working. Check the DIC messages
for details to determine which
system is working. If a message
appears in the DIC, the system may
be limiting wheel spin and aiding in
maintaining directional control of the
vehicle.
See
StabiliTrak
®System on
page 9‑40 andTraction Control
System (TCS) on page 9‑38 for
more information.
See Ride Control System Messages
on page 5‑40 for more information
on the messages associated with
this light.
For vehicles with an uplevel cluster,
this light comes on in the Driver
information Center (DIC).

Black plate (28,1)Buick LaCrosse Owner Manual - 2012
5-28 Instruments and Controls
DIC Operation and Displays
The DIC has different displays
which can be accessed by using the
DIC buttons on the turn signal lever
to the left of the steering wheel. The
DIC displays trip, fuel, vehicle
system information, and warning
messages if a system problem is
detected.
The bottom of the DIC display
shows what position the shift lever
is in, the odometer, and the direction
the vehicle is driving.
In cold weather the DIC display may
change slowly. This is normal and
will move more quickly as the
vehicle's interior temperature rises.DIC Buttons
A.
SET/CLR: Press to set or clear
the menu item when it is
displayed.
B.
w/x(Thumbwheel): Use to
scroll through the items in each
menu. A small marker will move
across the bottom of the page
as you scroll through the items.
This shows where each page is
in the menu.
C. MENU: Press to get to the Trip/
Fuel Menu and the Vehicle
Information Menu.
Trip/Fuel Menu Items
Press MENU on the turn signal
lever until Trip/Fuel Information
Menu is displayed. Use
w/xto
scroll through the following menu
items:
.Digital Speedometer
.Trip 1
.Trip 2
.Power Flow Gauge
(eAssist Only)
.Fuel Range
.Average Fuel Economy/
Instantaneous Fuel Economy
.Average Vehicle Speed
.Timer
.Navigation

Black plate (33,1)Buick LaCrosse Owner Manual - 2012
Instruments and Controls 5-33
When the HUD is on, the
speedometer reading is continually
displayed. The current radio station
or CD track number will display for a
short period of time after the radio
or CD track status changes. This
happens whenever radio information
is changed. The speedometer size
is reduced when radio, CD
information, warnings,
or turn-by-turn navigation
information are displayed on
the HUD.
The HUD control is located to the
left of the steering wheel.To adjust the HUD image so that
items are properly displayed, do the
following:
1. Adjust the driver seat to a
comfortable position.
2. Start the engine.
3. Adjust the HUD controls.
Use the following settings to adjust
the HUD.
OFF: To turn HUD off, turn the HUD
dimming knob fully counterclockwise
until the HUD display turns off.
Brightness: Turn the dimming knob
clockwise or counterclockwise to
brighten or dim the display.
«(Up) orª(Down): Press the
up or down arrows to center the
HUD image in your view. The HUD
image can only be adjusted up and
down, not side to side. PAGE:
Press to select the display
formats. Release the PAGE button
when the format number with the
desired display is shown on the
HUD. If vehicle messages are
displayed, pressing PAGE may clear
the message.
The three formats are as follows:
English Shown, Metric Similar
Format One: This display gives the
speedometer reading (in English or
metric units), turn signal indication,
high‐beam indication, transmission
positions, outside air temperature,
and compass heading.

Black plate (40,1)Buick LaCrosse Owner Manual - 2012
5-40 Instruments and Controls
SERVICE BLIND ZONE ALERT
SYSTEM
If this message appears, both SBZA
displays will remain on indicating
there is a problem with the SBZA
system. If these displays remain on
after continued driving, the system
needs service. Take the vehicle to
your dealer.
SIDE BLIND ZONE ALERT
SYSTEM OFF
This message indicates that the
driver has turned the system off.
SIDE BLIND ZONE SYS.
UNAVAILABLE
This message indicates that the
SBZA system is disabled because
the sensor is blocked and cannot
detect vehicles in the blind zone.
The sensor may be blocked by mud,
dirt, snow, ice, or slush. This
message may also activate during
heavy rain or due to road spray. The
vehicle does not need service. For
cleaning, seeExterior Care on
page 10‑102.
Ride Control System
Messages
ALL WHEEL DRIVE OFF
This message displays when the
All-Wheel Drive (AWD) System has
been turned off. See All-Wheel
Drive on page 9‑34.
SERVICE ALL WHEEL DRIVE
SYSTEM
This message displays when there
is a problem with the All-Wheel
Drive (AWD) System. See your
dealer for service.
SERVICE REAR AXLE
This message displays when there
is a problem with the All-Wheel
Drive (AWD) System. See your
dealer for service.
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message is displayed, the system
will not limit wheel spin. Adjust your
driving accordingly. See your dealer
for service.
SERVICE STABILITRAK
This message displays if there is a
problem with the StabiliTrak system.
If this message appears, try to reset
the system. Stop; turn off the engine
for at least 15 seconds; then start
the engine again. If this message
still comes on, it means there is a
problem. See your dealer for
service. The vehicle is safe to drive,
however, you do not have the
benefit of StabiliTrak, so reduce
your speed and drive accordingly.

Black plate (45,1)Buick LaCrosse Owner Manual - 2012
Instruments and Controls 5-45
Auto Defog
This will allow you to turn the auto
defog on or off. Only vehicles with
the dual zone climate control will
have this option.
Press SELECT when Auto Defog is
highlighted to open the menu. Turn
the Menu knob to highlight On or
Off. Press SELECT to confirm the
selection. Press
/BACK to move to
the last menu.
Auto Rear Defog
If equipped, this will allow you to
turn the auto rear defog on or off.
This feature will automatically turn
on the rear defogger when it is cold
outside.
Press SELECT when Auto Rear
Defog is highlighted to open the
menu. Turn the Menu knob to
highlight On or Off. Press SELECT
to confirm the selection. Press
/BACK to move to the last menu.
Comfort and Convenience
Select the Comfort and
Convenience menu and the
following will be displayed:
.Chime Volume
.Driver Seat Easy Exit
.Park Tilt Mirrors
Chime Volume
This allows selection of the chime
volume level.
Press SELECT when Chime Volume
is highlighted. Turn the Menu knob
to select Normal or High. Press
SELECT to confirm the selection.
Press
/BACK to move to the
last menu.
Driver Seat Easy Exit
When on, this feature will move the
driver seat rearward upon turning
the ignition off and opening the
driver door. This may be performed
to make it easier to exit the vehicle. See
“Easy Exit Driver Seat” under
Power Seat Adjustment on page 3‑5
for more information.
This allows you to turn the easy exit
seat feature on or off.
Press SELECT when Driver Seat
Easy Exit is highlighted. Turn the
Menu knob to select On or Off.
Press SELECT to confirm the
selection. Press
/BACK to move to
the last menu.
Park Tilt Mirrors
When on, both the driver and
passenger mirrors will tilt downward
when the vehicle is shifted to
R (Reverse) to improve visibility of
the ground near the rear wheels.
They will return to their previous
driving position when the vehicle is
shifted out of R (Reverse), the
ignition is turned to OFF, or the
vehicle is left in R (Reverse). See
Park Tilt Mirrors on page 2‑18 for
more information.

Black plate (1,1)Buick LaCrosse Owner Manual - 2012
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-2
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . 6-2
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 6-2
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 6-3
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . 6-3
Hazard Warning Flashers . . . . . 6-4
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 6-4
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-5
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 6-5
Dome Lamps . . . . . . . . . . . . . . . . . 6-6
Reading Lamps . . . . . . . . . . . . . . . 6-6
Sun Visor Lamps . . . . . . . . . . . . . . 6-6
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . 6-7
Exit Lighting . . . . . . . . . . . . . . . . . . . 6-7
Battery Load Management . . . . 6-7
Battery Power Protection . . . . . . 6-8
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is located
on the instrument panel on the
outboard side of the steering wheel.
Turn the control to the following
positions:
O(Off): Turns off the exterior
lamps. The knob returns to the
AUTO position after it is released.
Turn to off again to reactivate the
AUTO mode.
AUTO (Automatic): Automatically
turns the exterior lamps on and off,
depending on outside lighting.

Black plate (5,1)Buick LaCrosse Owner Manual - 2012
Lighting 6-5
Fog Lamps
For vehicles with fog lamps, the
button is located on the exterior
lamp control, left of the steering
wheel.
To turn on the fog lamps, the ignition
and the headlamps or parking lamps
must be on.If the fog lamps are turned on while
the exterior lamp switch is in the
AUTO position, the headlamps
come on automatically.
#:
Press to turn on or off. An
indicator light on the instrument
panel cluster comes on when the
fog lamps are on.
Some localities have laws that
require the headlamps to be on
along with the fog lamps.
Interior Lighting
Instrument Panel
Illumination Control
The brightness of the instrument
panel lighting and steering wheel
controls can be adjusted.
D(Instrument Panel
Illumination): Move and hold the
thumbwheel up or down to brighten
or dim the lights.

Black plate (13,1)Buick LaCrosse Owner Manual - 2012
Infotainment System 7-13
Display Settings
Press the Config button on the
Home Page or the CONFIG button
on the faceplate, then select Display
Settings from the list.
The following options may display:
Dimming Mode:Press to change
the screen background. The
Automatic setting adjusts the
screen background automatically
depending on the exterior lighting
conditions.
To change the overall brightness
setting for the display, use the
vehicle interior lighting instrument
panel illumination control.
Languages
The vehicle supports English,
French (Canadian), and Spanish.
The default language is English.
To change the display language,
see Vehicle Personalization on
page 5‑43 for more information.
English and Metric Unit
Conversion
To change the display units between
English and metric units, see Driver
Information Center (DIC) on
page 5‑27 for more information.
Cleaning the Display
Notice:Using abrasive cleaners
when cleaning glass surfaces
could scratch the glass. Use only
a soft cloth and do not spray
cleaner directly on the system as
it could affect the mechanical
parts.
Do not wipe the panel with a hard
cloth or use a volatile liquid such as
paint thinner; it could scratch the
surface or erase the characters on
the buttons.
Operation
Controls
The infotainment system is operated
by using the pushbuttons,
multifunction knobs, menus shown
on the display, and steering wheel
controls, if equipped.
Turning the System On or Off
VOL/O(Volume/Power): Press to
turn the system on and off.
Automatic Switch‐Off
If the infotainment system has been
turned on after the ignition is turned
off, the system will turn off
automatically after 10 minutes.