
Black plate (1,1)Buick LaCrosse Owner Manual - 2011
2011 Buick LaCrosse Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-16
Performance and Maintenance . . . . . . . . . . . . . . . . 1-22
Keys, Doors and Windows . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Vehicle Security . . . . . . . . . . . . . . 2-14
Exterior Mirrors . . . . . . . . . . . . . . . 2-16
Interior Mirrors . . . . . . . . . . . . . . . . 2-18
Windows . . . . . . . . . . . . . . . . . . . . . 2-18
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-4
Rear Seats . . . . . . . . . . . . . . . . . . . 3-11
Safety Belts . . . . . . . . . . . . . . . . . . 3-13
Airbag System . . . . . . . . . . . . . . . . 3-29
Child Restraints . . . . . . . . . . . . . . 3-44 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-2
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Information Displays . . . . . . . . . . 5-25
Vehicle Messages . . . . . . . . . . . . 5-33
Vehicle Personalization . . . . . . . 5-39
Universal Remote System . . . . 5-45
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-5
Lighting Features . . . . . . . . . . . . . . 6-6
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
Audio Players . . . . . . . . . . . . . . . . 7-20
Rear Seat Infotainment . . . . . . . 7-36
Phone . . . . . . . . . . . . . . . . . . . . . . . . 7-46 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-8
Maintenance . . . . . . . . . . . . . . . . . . . 8-8
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-16
Engine Exhaust . . . . . . . . . . . . . . 9-27
Automatic Transmission . . . . . . 9-28
Drive Systems . . . . . . . . . . . . . . . . 9-31
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-32
Ride Control Systems . . . . . . . . 9-36
Cruise Control . . . . . . . . . . . . . . . . 9-39
Object Detection Systems . . . . 9-42
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-50
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-55
Conversions and Add-Ons . . . 9-62

Black plate (6,1)Buick LaCrosse Owner Manual - 2011
vi Introduction
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
M:Windshield Washer Fluid

Black plate (1,1)Buick LaCrosse Owner Manual - 2011
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-4
Door Locks . . . . . . . . . . . . . . . . . . . 1-5
Trunk Release . . . . . . . . . . . . . . . . 1-5
Windows . . . . . . . . . . . . . . . . . . . . . . 1-5
Seat Adjustment . . . . . . . . . . . . . . 1-6
Memory Features . . . . . . . . . . . . . 1-7
Heated and Ventilated Seats . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Head Restraint Adjustment . . . . 1-9
Safety Belts . . . . . . . . . . . . . . . . . . 1-10
Sensing System for Passenger Airbag . . . . . . . . . . 1-10 Mirror Adjustment . . . . . . . . . . . . 1-10
Steering Wheel
Adjustment . . . . . . . . . . . . . . . . . 1-11
Interior Lighting . . . . . . . . . . . . . . 1-12
Exterior Lighting . . . . . . . . . . . . . 1-12
Windshield Wiper/Washer . . . . 1-13
Climate Controls . . . . . . . . . . . . . 1-14
Transmission . . . . . . . . . . . . . . . . 1-15
Vehicle Features
Radio(s) . . . . . . . . . . . . . . . . . . . . . 1-16
Satellite Radio . . . . . . . . . . . . . . . 1-17
Portable Audio Devices . . . . . . 1-17
Bluetooth
®. . . . . . . . . . . . . . . . . . . 1-17
Steering Wheel Controls . . . . . 1-18
Cruise Control . . . . . . . . . . . . . . . 1-18
Navigation System . . . . . . . . . . . 1-19
Driver Information Center (DIC) . . . . . . . . . . . . . . . 1-19
Vehicle Personalization . . . . . . 1-20
Power Outlets . . . . . . . . . . . . . . . 1-20
Universal Remote System . . . 1-20
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-21
Performance and Maintenance
Traction Control System (TCS) . . . . . . . . . . . . . . 1-22
Electronic Stability Control (ESC) . . . . . . . . . . . . . . 1-22
Tire Pressure Monitor . . . . . . . . 1-22
Tire Sealant and
Compressor Kit . . . . . . . . . . . . . 1-23
Engine Oil Life System . . . . . . 1-23
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-23
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-24
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-24

Black plate (5,1)Buick LaCrosse Owner Manual - 2011
In Brief 1-5
When the vehicle starts, the parking
lamps will turn on and remain on
as long as the engine is running.
The doors will be locked and
the climate control system may
come on.
The engine will continue to run for
10 minutes. Repeat the steps for a
10-minute time extension. Remote
start can be extended only once.
Canceling a Remote Start
To cancel a remote start:
.Aim the RKE transmitter at
the vehicle and press and
hold
/until the parking
lamps turn off.
.Turn on the hazard warning
flashers.
.Turn the vehicle on and then off.
See Remote Vehicle Start on
page 2‑8.
Door Locks
To lock or unlock the doors:
.From inside the vehicle, use
the door lock knob or the power
door lock controls, pull once on
the door handle to unlock it, and
a second time to open it.
.From outside, use the key,
or press
QorKon the Remote
Keyless Entry (RKE) transmitter.
See Remote Keyless Entry
(RKE) System Operation on
page 2‑4.
See Door Locks on page 2‑10.
Power Door Locks
On vehicles with power door locks,
the controls are located on the
center of the instrument panel.
K:Press to unlock the doors.
Q:Press to lock the doors.
See Power Door Locks on
page 2‑11.
Trunk Release
The trunk may be opened by
pressing
Von the Remote
Keyless Entry (RKE) transmitter or
the touchpad located on the rear of
the trunk above the license plate.
See Trunk on page 2‑12 for more
information.
Windows
On vehicles with power windows,
the switches are on the driver door
armrest. Each passenger door has
a switch that controls only that
window.
Press the switch to lower the
window. Pull the switch up to
raise it.
For more information, see Power
Windows on page 2‑19.

Black plate (20,1)Buick LaCrosse Owner Manual - 2011
1-20 In Brief
Vehicle Personalization
Some vehicle features can be
programmed by using the audio
system controls. These features
include:
.Climate and Air Quality
.Comfort and Convenience
.Collision/Detection Systems
.Language
.Lighting
.Power Door Locks
.Remote Lock/Unlock/Start
See Vehicle Personalization on
page 5‑39.
Power Outlets
The accessory power outlets can be
used to plug in electrical equipment,
such as a cell phone or MP3 player.
There are two accessory power
outlets. One is located under the
armrest inside the center console
storage and the other is on the rear
of the center floor console.
Remove the cover to access and
replace when not in use.
See Power Outlets on page 5‑7.
Universal Remote System
This system provides a way
to replace up to three remote
control transmitters used to
activate devices such as garage
door openers, security systems,
and home automation devices.
Read the instructions completely
before attempting to program
the Universal Home Remote.
Because of the steps involved,
it may be helpful to have another
person available to assist you with
programming the Universal Home
Remote.
SeeUniversal Remote System on
page 5‑45.

Black plate (2,1)Buick LaCrosse Owner Manual - 2011
2-2 Keys, Doors and Windows
Keys and Locks
Keys
{WARNING
Leaving children in a vehicle with
the ignition key is dangerous for
many reasons. Children or others
could be badly injured or even
killed. They could operate the
power windows or other controls
or even make the vehicle move.
The windows will function with the
keys in the ignition and children
could be seriously injured or killed
if caught in the path of a closing
window. Do not leave the keys in
a vehicle with children.
{WARNING
Leaving children in a vehicle with
the keyless access transmitter
is dangerous for many reasons,
children or others could be badly
injured or even killed. They could
operate the power windows or
other controls or even make the
vehicle move. The windows will
function with the keyless access
transmitter in the vehicle and they
could be seriously injured or killed
if caught in the path of a closing
window. Do not leave the keyless
access transmitter in a vehicle
with children.
The key that is part of the Remote
Keyless Entry (RKE) transmitter
can be used for the ignition and
all locks if the vehicle is a key
access vehicle. If the vehicle has
the keyless ignition, the key can
be used for the locks.

Black plate (8,1)Buick LaCrosse Owner Manual - 2011
2-8 Keys, Doors and Windows
Starting the Vehicle with a Low
Transmitter Battery
If the transmitter battery is weak,
the DIC may display NO REMOTE
DETECTED when you try to
start the vehicle. The REPLACE
BATTERY IN REMOTE KEY
message may also be displayed
at this time.
To start the vehicle:
1. Remove the cupholder from thecenter console storage area.
2. Place the transmitter in the transmitter pocket with the
buttons facing up. 3. With the vehicle in P (Park) or
N (Neutral), press the brake
pedal and the ignition control.
See Starting the Engine on
page 9‑20 for additional
information about the vehicle's
keyless ignition with push start.
Replace the transmitter battery
as soon as possible.
Battery Replacement
Replace the battery if the REPLACE
BATTERY IN REMOTE KEY
message displays in the DIC.
See “Replace Battery in Remote
Key” under Key and Lock Messages
on page 5‑36.
The battery is not rechargeable.
To replace the battery:
1. Push the button on the transmitter to extend the key.
2. Remove the battery cover by prying it with a finger.
3. Remove the battery by pushing on the battery and sliding it
toward the keyblade. 4. Insert the new battery, positive
side facing up. Push the battery
down until it is held in place.
Replace with a CR2032 or
equivalent battery.
5. Snap the battery cover back on to the transmitter.
Remote Vehicle Start
If available, this feature allows the
engine to be started from outside
the vehicle.
The
/button will be on the RKE
transmitter if the vehicle has remote
start.
Laws in some local communities
may restrict the use of remote
starters. For example, some laws
may require a person using remote
start to have the vehicle in view.
Check local regulations for any
requirements.

Black plate (9,1)Buick LaCrosse Owner Manual - 2011
Keys, Doors and Windows 2-9
Starting the Engine Using Remote
Start
To start the engine using the remote
start feature:
1. Aim the Remote Keyless Entrytransmitter at the vehicle.
2. Press
Q.
3. Immediately after completing Step 2, press and hold
/until
the turn signal lamps flash, or for
about 2 seconds if the vehicle is
not in view.
Once the vehicle is started, the
parking lamps will turn on and
remain on as long as the engine
is running.
Turn the ignition to ON/RUN
(key access), or select the
ON/RUN/START ignition position
(keyless access), to drive the
vehicle. The engine will shut off after
10 minutes unless a time
extension is done or the ignition
is put in ON/RUN (key access) or
ON/RUN/START (keyless access).
Vehicles with an automatic climate
control system will default to a
heating or cooling mode depending
on the outside temperature during a
remote start. When the key is turned
to ON/RUN (key access), or the
ON/RUN/START ignition position
is selected (keyless access), the
climate control system will turn on
at the setting the vehicle was set to
when the vehicle was last turned off.
Vehicles with heated or heated and
ventilated front seats can have this
feature turn on automatically during
a remote start. See
“Remote Start
Heated Seats” and“Remote Start
Vented Seats” underVehicle
Personalization on page 5‑39
for more information. Extending Engine Run Time
For a 10-minute extension, repeat
Steps 1 and 2 while the engine is
still running. The remote start can
only be extended once.
When the remote start is extended,
the second 10 minutes will start
immediately.
For example, if the vehicle has
been running for five minutes, and
10 minutes are added, the engine
will run for a total of 15 minutes.
A maximum of two remote starts or
remote start attempts are allowed
between ignition cycles.
The vehicle's ignition must be
turned on and then back off before
the remote start procedure can be
used again.