parking brake BUICK LACROSSE 2011 Owner's Manual

Black plate (3,1)Buick LaCrosse Owner Manual - 2011
In Brief 1-3
A.Air Vents on page 8‑8.
B. Head-Up Display (HUD) on
page 5‑29 (If Equipped).
C. Turn and Lane‐Change Lever. See Turn and Lane-Change
Signals on page 6‑4.
Driver Information Center
Buttons. See Driver Information
Center (DIC) on page 5‑25.
D. Instrument Cluster on
page 5‑10.
Driver Information Center
Display. See Driver Information
Center (DIC) on page 5‑25.
E. Windshield Wiper/Washer on
page 5‑3.
F. Infotainment Display Screen.
G. Infotainment on page 7‑1.
H. Exterior Lamp Controls on
page 6‑1.
Fog Lamps on page 6‑5
(If Equipped).
Instrument Panel Illumination
Control on page 6‑5. I.
Front Storage on page 4‑1.
J. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp on page 5‑17.
K. Cruise Control on page 9‑39.
L. Steering Wheel Adjustment on
page 5‑2.
M. Horn on page 5‑3.
N. Steering Wheel Controls on
page 5‑2 (If Equipped).
O. Ignition Positions (Key Access)
on page 9‑17 orIgnition
Positions (Keyless Access) on
page 9‑19.
P. Heated and Ventilated Front
Seats on page 3‑10.
Q. Automatic Climate Control
System on page 8‑1
(If Equipped).
Dual Automatic Climate
Control System on page 8‑4
(If Equipped). R.
Power Door Locks on
page 2‑11.
Hazard Warning Flashers on
page 6‑4.
Passenger Sensing System on
page 3‑37.
S. Parking Brake on page 9‑33.
T. Shift Lever Position Indicator. See Automatic Transmission on
page 9‑28.
U. Shift Lever. See Shifting Into
Park on page 9‑25.
V. Traction Control System (TCS)
on page 9‑36.
Electronic Stability Control
(ESC) on page 9‑37.
Ultrasonic Parking Assist on
page 9‑42.
Rear Window Sunshade
(If Equipped). See Rear
Window Sunshade on
page 2‑20.
W. Glove Box on page 4‑1.

Black plate (1,1)Buick LaCrosse Owner Manual - 2011
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-5
Clock (Without DateDisplay) . . . . . . . . . . . . . . . . . . . . . 5-5
Clock (With Date Display) . . . . . 5-6
Power Outlets . . . . . . . . . . . . . . . . . 5-7
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Instrument Cluster . . . . . . . . . . . 5-10
Speedometer . . . . . . . . . . . . . . . . 5-11
Odometer . . . . . . . . . . . . . . . . . . . . 5-11 Tachometer . . . . . . . . . . . . . . . . . . 5-11
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-11
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-13
Safety Belt Reminders . . . . . . . 5-14
Airbag Readiness Light . . . . . . 5-14
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-15
Charging System Light . . . . . . 5-16
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-17
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-19
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-20
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-21
Traction Off Light . . . . . . . . . . . . 5-21
Electronic Stability Control (ESC) Indicator Light . . . . . . . 5-22
Electronic Stability Control (ESC)/Traction Control
System (TCS) Indicator/
Warning Light . . . . . . . . . . . . . . 5-22 Tire Pressure Light . . . . . . . . . . 5-23
Engine Oil Pressure Light . . . . 5-23
Low Fuel Warning Light . . . . . . 5-24
Security Light . . . . . . . . . . . . . . . . 5-24
High-Beam On Light . . . . . . . . . 5-24
Front Fog Lamp Light . . . . . . . . 5-25
Taillamp Indicator Light . . . . . . 5-25
Cruise Control Light . . . . . . . . . 5-25
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . 5-25
Head-Up Display (HUD) . . . . . 5-29
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-33
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . 5-33
Brake System Messages . . . . 5-33
Compass Messages . . . . . . . . . 5-34
Cruise Control Messages . . . . 5-34
Door Ajar Messages . . . . . . . . . 5-34
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-35

Black plate (20,1)Buick LaCrosse Owner Manual - 2011
5-20 Instruments and Controls
If the light comes on while driving,
pull off the road and stop carefully.
The pedal may be harder to push or
it can go closer to the floor. It may
take longer to stop. Try turning off
and restarting the vehicle one or
two times. If the light is still on,
have the vehicle towed for service.
SeeAntilock Brake System (ABS)
Warning Light on page 5‑21 and
Towing the Vehicle on page 10‑89.
{WARNING
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Electric Parking Brake
Light
EnglishMetric
For vehicles with the Electric
Parking Brake (EPB), the parking
brake status light comes on
when the brake is applied. If the
light continues flashing after the
parking brake is released, or while
driving, there is a problem with
the Electric Parking Brake system.
A SERVICE PARKING BRAKE
message may also display in the
Driver Information Center (DIC).
See Brake System Messages on
page 5‑33 for more information.
If the light does not come on,
or remains flashing, see your dealer.
For vehicles with the Electric
Parking Brake (EPB), the parking
brake warning light should come
on briefly when ignition is placed
in ON/RUN. If it does not come on,
then have it fixed so it will be ready
to warn if there is a problem.
If this light comes on, there is a
problem with a system on the
vehicle that is causing the parking
brake system to work at a reduced
level. The vehicle can still be driven,
but should be taken to a dealer
as soon as possible. See Parking
Brake on page 9‑33 for more
information.
For vehicles with the uplevel cluster,
this telltale displays in the Driver
Information Center (DIC) screen.

Black plate (33,1)Buick LaCrosse Owner Manual - 2011
Instruments and Controls 5-33
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle
or some action that may be needed
to correct a condition. Multiple
messages may display one after
the other.
The messages that do not
require immediate action can
be acknowledged and cleared by
pressing SET/CLR. The messages
that require immediate action cannot
be cleared until that action is
performed. All messages should
be taken seriously and clearing
the messages does not correct
the problem.
Battery Voltage and
Charging Messages
BATTERY SAVER ACTIVE
This message displays when
the vehicle has detected that the
battery voltage is dropping beyond
a reasonable point. The battery
saver system starts reducing certain
features of the vehicle that you may
be able to notice. At the point that
features are disabled, this message
is displayed. It means that the
vehicle is trying to save the charge
in the battery. Turn off unnecessary
accessories to allow the battery to
recharge.
LOW BATTERY
This message is displayed when the
battery voltage is low. SeeBattery
on page 10‑27 for more information.
SERVICE BATTERY
CHARGING SYSTEM
This message is displayed
when there is a fault in the battery
charging system. Take the vehicle
to your dealer for service.
Brake System Messages
BRAKE FLUID LOW
This message is displayed when the
brake fluid level is low. See Brake
Fluid on page 10‑25.
PRESS BRAKE PEDAL TO
RELEASE PARK BRAKE
This message is displayed if you
attempt to release the electric
parking brake without the brake
pedal applied. See Parking Brake
on page 9‑33 for more information.

Black plate (34,1)Buick LaCrosse Owner Manual - 2011
5-34 Instruments and Controls
RELEASE PARK BRAKE
SWITCH
This message is displayed if the
electric parking brake is on while
the vehicle is in motion. Release
it before you attempt to drive.
SeeParking Brake on page 9‑33
for more information.
SERVICE BRAKE ASSIST
This message may be displayed
when there is a problem with
the brake boost assist system.
When this message is displayed,
the brake boost assist motor
might be heard operating and
you might notice pulsation in the
brake pedal. This is normal under
these conditions. Take the vehicle
to your dealer for service.
SERVICE PARKING BRAKE
This message is displayed when
there is a problem with the electric
parking brake. See Parking Brake
on page 9‑33 for more information.
Take the vehicle to your dealer.
Compass Messages
CAL
This message is displayed when
the compass needs to be calibrated.
See Compass on page 5‑5.
– – –
Three dashes will be displayed if the
compass needs service. See your
dealer for service.
Cruise Control Messages
APPLY BRAKE BEFORE
CRUISE
If this message displays when
attempting to activate cruise control,
apply the brake pedal and try again.
CRUISE SET TO XXX
This message displays when the
cruise control is set and shows the
speed it was set to. See Cruise
Control on page 9‑39 for more
information.
Door Ajar Messages
DRIVER DOOR OPEN
This message will display when the
driver door is open. Close the door
completely.
HOOD OPEN
This message will display when
the hood is open. Close the hood
completely.
LEFT REAR DOOR OPEN
This message will display when the
driver side rear door is open. Close
the door completely.
PASSENGER DOOR OPEN
This message will display when the
front passenger door is open. Close
the door completely.
RIGHT REAR DOOR OPEN
This message will display when the
passenger side rear door is open.
Close the door completely.

Black plate (1,1)Buick LaCrosse Owner Manual - 2011
Driving and Operating 9-1
Driving and
Operating
Driving Information
Defensive Driving . . . . . . . . . . . . . 9-2
Drunk Driving . . . . . . . . . . . . . . . . . 9-2
Control of a Vehicle . . . . . . . . . . . 9-3
Braking . . . . . . . . . . . . . . . . . . . . . . . 9-3
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-4
Off-Road Recovery . . . . . . . . . . . . 9-6
Loss of Control . . . . . . . . . . . . . . . . 9-6
Driving on Wet Roads . . . . . . . . . 9-7
Highway Hypnosis . . . . . . . . . . . . 9-8
Hill and Mountain Roads . . . . . . 9-8
Winter Driving . . . . . . . . . . . . . . . . . 9-9
If the Vehicle is Stuck . . . . . . . . 9-11
Vehicle Load Limits . . . . . . . . . . 9-12
Starting and Operating
New Vehicle Break-In . . . . . . . . 9-16
Ignition Positions(Key Access) . . . . . . . . . . . . . . . 9-17
Ignition Positions (Keyless Access) . . . . . . . . . . . 9-19
Starting the Engine . . . . . . . . . . 9-20
Engine Heater . . . . . . . . . . . . . . . 9-23
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . 9-24
Shifting Into Park . . . . . . . . . . . . 9-25
Shifting Out of Park . . . . . . . . . . 9-26
Parking Over Things That Burn . . . . . . . . . . . . . . . . . . 9-27
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 9-27
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . 9-28
Automatic Transmission
Automatic Transmission . . . . . 9-28
Manual Mode . . . . . . . . . . . . . . . . 9-30
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . 9-31
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . 9-32
Parking Brake . . . . . . . . . . . . . . . 9-33
Brake Assist . . . . . . . . . . . . . . . . . 9-35
Hill Start Assist (HSA) . . . . . . . 9-35
Ride Control Systems
Traction Control System (TCS) . . . . . . . . . . . . . . 9-36
Electronic Stability Control (ESC) . . . . . . . . . . . . . . 9-37
Limited-Slip Differential . . . . . . 9-38
Selective Ride Control . . . . . . . 9-38
Cruise Control
Cruise Control . . . . . . . . . . . . . . . 9-39
Object Detection Systems
Ultrasonic Parking Assist . . . . 9-42
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . 9-44
Rear Vision Camera (RVC) . . . . . . . . . . . . . 9-46

Black plate (4,1)Buick LaCrosse Owner Manual - 2011
9-4 Driving and Operating
And, of course, actual stopping
distances vary greatly with the
surface of the road, whether it is
pavement or gravel; the condition
of the road, whether it is wet, dry,
or icy; tire tread; the condition of the
brakes; the weight of the vehicle;
and the amount of brake force
applied.
Avoid needless heavy
braking. Some people drive in
spurts—heavy acceleration
followed by heavy braking —rather
than keeping pace with traffic.
This is a mistake. The brakes
might not have time to cool
between hard stops. The brakes
will wear out much faster with a
lot of heavy braking. Keeping pace
with the traffic and allowing realistic
following distances eliminates a lot
of unnecessary braking. That means
better braking and longer brake life. If the engine ever stops while
the vehicle is being driven, brake
normally but do not pump the
brakes. If the brakes are pumped,
the pedal could get harder to push
down. If the engine stops, there
will still be some power brake assist
but it will be used when the brake
is applied. Once the power assist is
used up, it can take longer to stop
and the brake pedal will be harder
to push.
Adding non‐dealer accessories
can affect vehicle performance.
See
Accessories and Modifications
on page 10‑3.
Steering
Power Steering
If power steering assist is lost
because the engine stops or the
power steering system is not
functioning, the vehicle can be
steered but it will take more effort.
Speed Variable Assist Steering
The vehicle has a steering system
that varies the amount of effort
required to steer the vehicle in
relation to the speed of the vehicle.
The amount of steering effort
required is less at slower
speeds to make the vehicle more
maneuverable and easier to park.
At faster speeds, the steering effort
increases to provide a sport-like
feel to the steering. This provides
maximum control and stability.
If the vehicle seems harder to steer
than normal when parking or driving
slowly, there may be a problem
with the system. You will still have
power steering, but steering will be
stiffer than normal at slow speeds.
See your dealer for service.

Black plate (18,1)Buick LaCrosse Owner Manual - 2011
9-18 Driving and Operating
In an emergency, if the vehicle must
be shut off while driving:
1. Brake using a firm and steadypressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to
a safe location.
3. Come to a complete stop, shift to P (Park), and turn the ignition
to LOCK/OFF. On vehicles with
an automatic transmission, the
shift lever must be in P (Park)
to turn the ignition switch to
the LOCK/OFF position.
4. Set the parking brake. See Parking Brake on
page 9‑33.{WARNING
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
5. If the vehicle must be shut off while driving, turn the ignition to
ACC/ACCESSORY.
The ignition switch can bind in the
LOCK/OFF position with the wheels
turned off center. If this happens,
move the steering wheel from
right to left while turning the key
to ACC/ACCESSORY. If this does
not work, then the vehicle needs
service.
B (ACC/ACCESSORY): This
position provides power to some of
the electrical accessories. It unlocks
the ignition. To move the key from
ACC/ACCESSORY to LOCK/OFF,
the shift lever must be in P (Park). C (ON/RUN):
The ignition
switch stays in this position
when the engine is running.
This position can be used to
operate the electrical accessories,
including the ventilation fan and
12‐volt power outlet, as well as to
display some warning and indicator
lights. The transmission is also
unlocked in this position.
The battery could be drained if the
key is left in the ACC/ACCESSORY
or ON/RUN position with the engine
off. The vehicle might not restart if
the battery is allowed to drain for an
extended period of time.
D (START): This position starts
the engine. When the engine starts,
release the key. The ignition switch
will return to ON/RUN for normal
driving.
A warning tone sounds when the
driver door is opened when the
ignition is still in ACC/ACCESSORY
and the key is in the ignition.

Black plate (20,1)Buick LaCrosse Owner Manual - 2011
9-20 Driving and Operating
3. Come to a complete stop, shiftto P (Park), and turn the ignition
to LOCK/OFF. On vehicles with
an automatic transmission, the
shift lever must be in P (Park)
to turn the ignition switch to the
LOCK/OFF position.
4. Set the parking brake. See Parking Brake on
page 9‑33.
{WARNING
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
5. If the vehicle must be shut off while driving, switch the ignition
to ACC/ACCESSORY. ACC/ACCESSORY (Amber LED
Light):
This mode allows you to
use some electrical accessories
when the engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.
The ignition will switch from
ACC/ACCESSORY to OFF after
five minutes to prevent battery
run down.
ON/RUN/START (Green LED
Light): This mode is for driving
and starting. With the ignition
off, and the brake pedal applied,
pressing the button once will
place the ignition system in
ON/RUN/START. Once engine
cranking begins, release the
button. Engine cranking will
continue until the engine starts.
See Starting the Engine on
page 9‑20 for more information.
The ignition will then remain in
ON/RUN.
Starting the Engine
Move the shift lever to P (Park) or
N (Neutral). The engine will not start
in any other position. To restart the
engine when the vehicle is already
moving, use N (Neutral) only.
Notice: Do not try to shift to
P (Park) if the vehicle is moving.
If you do, you could damage the
transmission. Shift to P (Park)
only when the vehicle is stopped.
Notice: The engine is designed
to work with the electronics in
the vehicle. If you add electrical
parts or accessories, you could
change the way the engine
operates. Before adding electrical
equipment, check with your
dealer. If you do not, the engine
might not perform properly. Any
resulting damage would not be
covered by the vehicle warranty.

Black plate (25,1)Buick LaCrosse Owner Manual - 2011
Driving and Operating 9-25
Shifting Into Park
{WARNING
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow.
1. Hold the brake pedal down and set the parking brake.
See Parking Brake on page 9‑33
for more information.
2. Move the shift lever into P (Park) by pushing the lever all the way
toward the front of the vehicle.
3. Turn the ignition off.
Leaving the Vehicle with the
Engine Running
{WARNING
It can be dangerous to leave the
vehicle with the engine running.
The vehicle could move suddenly
if the shift lever is not fully in
P (Park) with the parking brake
firmly set. And, if you leave the
vehicle with the engine running,
it could overheat and even catch
fire. You or others could be
injured. Do not leave the vehicle
with the engine running. If you have to leave the vehicle
with the engine running, be sure
the vehicle is in P (Park) and the
parking brake is firmly set before
you leave it. After you have moved
the shift lever into P (Park), hold
down the regular brake pedal. See if
you can move the shift lever away
from P (Park) without first pulling it
toward you. If you can, it means that
the shift lever was not fully locked
into P (Park).