BUICK LACROSSE 2010 Owner's Manual

2010 Buick LaCrosse Owner ManualM
Keys, Doors and Windows. . . 1-1
Keys and Locks . . . . . . . . . . . . . . . 1-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Vehicle Security . . . . . . . . . . . . . . 1-13
Exterior Mirrors . . . . . . . . . . . . . . . 1-15
Interior Mirrors . . . . . . . . . . . . . . . . 1-16
Windows . . . . . . . . . . . . . . . . . . . . . 1-17
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Seats and Restraints . . . . . . . . . 2-1
Head Restraints . . . . . . . . . . . . . . . 2-2
Front Seats . . . . . . . . . . . . . . . . . . . . 2-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 2-9
Safety Belts . . . . . . . . . . . . . . . . . . 2-10
Airbag System . . . . . . . . . . . . . . . . 2-24
Child Restraints . . . . . . . . . . . . . . 2-40
Storage . . . . . . . . . . . . . . . . . . . . . . . 3-1
Storage Compartments . . . . . . . . 3-1
Additional Storage Features . . . 3-2 Instruments and Controls
. . . . 4-1
Instrument Panel Overview . . . . 4-4
Controls . . . . . . . . . . . . . . . . . . . . . . . 4-6
Warning Lights, Gages, and
Indicators . . . . . . . . . . . . . . . . . . . 4-12
Information Displays . . . . . . . . . . 4-25
Vehicle Messages . . . . . . . . . . . . 4-32
Vehicle Personalization . . . . . . . 4-38
OnStar System
®. . . . . . . . . . . . . . 4-43
Universal Remote System . . . . 4-45
Lighting . . . . . . . . . . . . . . . . . . . . . . . 5-1
Exterior Lighting . . . . . . . . . . . . . . . 5-1
Interior Lighting . . . . . . . . . . . . . . . . 5-5
Lighting Features . . . . . . . . . . . . . . 5-6
Infotainment System . . . . . . . . . 6-1
Introduction . . . . . . . . . . . . . . . . . . . . 6-2
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Audio Players . . . . . . . . . . . . . . . . 6-20
Rear Seat Infotainment . . . . . . . 6-34
Phone . . . . . . . . . . . . . . . . . . . . . . . . 6-42 Climate Controls
. . . . . . . . . . . . . 7-1
Climate Control Systems . . . . . . 7-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 7-8
Maintenance . . . . . . . . . . . . . . . . . . . 7-8
Driving and Operating . . . . . . . . 8-1
Driving Information . . . . . . . . . . . . . 8-2
Starting and Operating . . . . . . . 8-17
Engine Exhaust . . . . . . . . . . . . . . 8-26
Automatic Transmission . . . . . . 8-27
Drive Systems . . . . . . . . . . . . . . . . 8-30
Brakes . . . . . . . . . . . . . . . . . . . . . . . 8-31
Ride Control Systems . . . . . . . . 8-34
Cruise Control . . . . . . . . . . . . . . . . 8-37
Object Detection Systems . . . . 8-40
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
Towing . . . . . . . . . . . . . . . . . . . . . . . 8-54
Conversions and Add-Ons . . . 8-60
Vehicle Care . . . . . . . . . . . . . . . . . . 9-1
General Information . . . . . . . . . . . . 9-2
Vehicle Checks . . . . . . . . . . . . . . . . 9-4
Headlamp Aiming . . . . . . . . . . . . 9-30

2010 Buick LaCrosse Owner ManualM
Bulb Replacement . . . . . . . . . . . . 9-33
Electrical System . . . . . . . . . . . . . 9-38
Wheels and Tires . . . . . . . . . . . . . 9-46
Jump Starting . . . . . . . . . . . . . . . . 9-75
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-79
Appearance Care . . . . . . . . . . . . . 9-82
Service and Maintenance . . . 10-1
General Information . . . . . . . . . . 10-1
Scheduled Maintenance . . . . . . 10-2
Recommended Fluids,
Lubricants, and Parts . . . . . . . 10-7
Maintenance Records . . . . . . . 10-10
Technical Data . . . . . . . . . . . . . . . 11-1
Vehicle Identification . . . . . . . . . . 11-1
Vehicle Data . . . . . . . . . . . . . . . . . . 11-2
Customer Information . . . . . . . 12-1
Customer Information . . . . . . . . 12-1
Reporting Safety Defects . . . . 12-13
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . 12-15
Index . . . . . . . . . . . . . . . . . . . . . i-1

Introduction iii
GENERAL MOTORS, GM, the GM
Emblem, BUICK, the BUICK
Emblem, and the name LaCrosse
are registered trademarks of
General Motors Corporation.
This manual describes features that
may or may not be on your specific
vehicle either because they are
options that you did not purchase or
due to changes subsequent to the
printing of this owner manual.
Please refer to the purchase
documentation relating to your
specific vehicle to confirm each of
the features found on your vehicle.For vehicles first sold in Canada,
substitute the name
“General
Motors of Canada Limited” for Buick
Motor Division wherever it appears
in this manual.
Manufactured under license under
U.S. Patent #'s: 5,451,942;
5,956,674; 5,974,380; 5,978,762;
6,487,535 & other U.S. and
worldwide patents issued &
pending. DTS and DTS Digital
Surround are registered trademarks
and the DTS logos and Symbol are trademarks of DTS, Inc. ©
1996-2007 DTS, Inc. All Rights
Reserved.
Manufactured under license from
Dolby Laboratories. Dolby and the
double-D symbol are trademarks of
Dolby Laboratories. Copyright
1992-1997 Dolby Laboratories. All
rights reserved.
Litho in the U.S.A.
Part No. 25919686 A First Printing©2009 General Motors Corporation. All rights Reserved.

iv Introduction
This product incorporates copyright
protection technology that is
protected by U.S. patents and other
intellectual property rights. Use of
this copyright protection technology
must be authorized by Macrovision,
and is intended for home and other
limited viewing uses only unless
otherwise authorized by
Macrovision. Reverse engineering
or disassembly is prohibited.
“Made for iPod”means that an
electronic accessory has been
designed to connect specifically
to iPod and has been certified by
the developer to meet Apple
performance standards. iPod is a
trademark of Apple Computer, Inc.,
registered in the U.S. and other
countries.
Canadian Vehicle Owners
Canadian Owners
(Propriétaires Canadiens)
A French language copy of this
manual can be obtained from your
dealer/retailer or from:
On peut obtenir un exemplaire de
ce guide en français auprès du
concessionnaire ou à l'adresse
suivante:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
Numéro de poste 6438 de langue
française
www.helminc.com
Using this Manual
To quickly locate information about
the vehicle use the Index in the
back of the manual. It is an
alphabetical list of what is in the
manual and the page number where
it can be found.
Danger, Warnings, and
Cautions
Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
Danger indicates a hazard with a
high level of risk which will result in
serious injury or death.
Warning orCaution indicates a
hazard that could result in injury or
death.
{WARNING
These mean there is something
that could hurt you or other
people.
Notice: This means there is
something that could result in
property or vehicle damage. This
would not be covered by the
vehicle's warranty.

Introduction v
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message, gage,
or indicator.
M: This symbol is shown when
you need to see your owner manual
for additional instructions or
information.
*: This symbol is shown when
you need to see a service manual
for additional instructions or
information. 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)
g: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 Gage
+:Fuses
i: 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

vi Introduction
2@NOTES

Keys, Doors and Windows 1-1
Keys, Doors and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Remote KeylessEntry (RKE) System . . . . . . . . . 1-3
Remote Keyless Entry (RKE) System
Operation (Key Access) . . . . . 1-3
Remote Keyless Entry (RKE) System
Operation
(Keyless Access) . . . . . . . . . . . . 1-5
Remote Vehicle Start . . . . . . . . . 1-8
Door Locks . . . . . . . . . . . . . . . . . . 1-10
Power Door Locks . . . . . . . . . . . 1-10
Safety Locks . . . . . . . . . . . . . . . . . 1-11
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 1-13
Anti-Theft Alarm System . . . . . 1-13
Immobilizer . . . . . . . . . . . . . . . . . . 1-13
Immobilizer Operation (Key Access) . . . . . . . . . . . . . . . 1-13
Immobilizer Operation (Keyless Access) . . . . . . . . . . . 1-14
Exterior Mirrors
Power Mirrors . . . . . . . . . . . . . . . . 1-15
Folding Mirrors . . . . . . . . . . . . . . . 1-15
Heated Mirrors . . . . . . . . . . . . . . . 1-16
Park Tilt Mirrors . . . . . . . . . . . . . . 1-16
Interior Mirrors
Manual Rearview Mirror . . . . . . 1-16
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 1-17
Power Windows . . . . . . . . . . . . . 1-17
Sun Visors . . . . . . . . . . . . . . . . . . . 1-19
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-19

1-2 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

Keys, Doors and Windows 1-3
vehicle. If the vehicle has the
keyless ignition, the key can be
used for the locks.
Press the button on the RKE
transmitter to extend the key. Press
the button and the key blade to
retract the key.
See your dealer/retailer if a new key
is needed.
Notice:If you ever lock your keys
in the vehicle, you may have to
damage the vehicle to get in.
Be sure you have spare keys. If you are locked out of the vehicle,
see
Roadside Assistance Program
(US, Can)
on page 12‑6or
OnStar®Systemon page 4‑43.
Remote Keyless Entry
(RKE) System
See Radio Frequency Statement
(US, Can)on page 12‑16for
information regarding Part 15 of
the Federal Communications
Commission (FCC) Rules and
RSS-210/211 of Industry and
Science Canada.
Changes or modifications to this
system by other than an authorized
service facility could void
authorization to use this equipment.
If there is a decrease in the RKE
operating range:
.Check the distance. The
transmitter may be too far from
the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
.Check the transmitter's battery.
See “Battery Replacement” later
in this section.
.If the transmitter is still not
working correctly, see your
dealer/retailer or a qualified
technician for service.
Remote Keyless Entry
(RKE) System Operation
(Key Access)
The transmitter functions will work
up to 20 m (65 feet) away from the
vehicle. On vehicles with remote
start the distance will be greater.
Keep in mind that other conditions,
such as those previously stated, can
impact the performance of the
transmitter.

1-4 Keys, Doors and Windows
RKE without Remote Start Shown
The following may be available:
Q(Lock): Press to lock all doors.
The turn signal indicators may flash
and/or the horn may sound to
indicate locking, see “Locking
Feedback” underVehicle
Personalization
on page 4‑38.
If the driver door is open when
Qis
pressed, all doors lock except the
driver door, if enabled through the
vehicle personalization. If the passenger door is open when
Qis pressed, all doors lock.
Pressing
Qmay also arm the
theft-deterrent system. See
Anti-Theft Alarm System
on
page 1‑13.
K(Unlock): Press to unlock the
driver door or all doors, see “Door
Unlock Options” underVehicle
Personalization
on page 4‑38.
The turn signal indicators may flash
and/or the horn may sound to
indicate unlocking, see “Unlock
Feedback” underVehicle
Personalization
on page 4‑38.
Pressing
Kwill disarm the
theft-deterrent system. See
Anti-Theft Alarm System
on
page 1‑13. V
(Remote Trunk Release):
Press and hold to unlock the trunk.
7(Vehicle Locator/Panic
Alarm): Press and release one
time to locate the vehicle. The
exterior lamps flash and the horn
chirps.
Press and hold
7for at least
two seconds to sound the panic
alarm. The horn sounds and the
turn signals flash until
7is pressed
again or the vehicle is started.
/(Remote Vehicle Start): For
vehicles with this feature, press
Q
and then press and hold/within
five seconds to start the engine from
outside the vehicle using the RKE
transmitter. See Remote Vehicle
Start
on page 1‑8for additional
information.