Page 327 of 462

Black plate (15,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-15
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check
the transmission fluid level.
A transmission fluid leak is the
only reason for fluid loss. If a leak
occurs, take the vehicle to your
dealer service department and
have it repaired as soon as
possible.
There is a special procedure
for checking and changing the
transmission fluid. Because
this procedure is difficult, you
should have this done at your
dealer service department.Contact your dealer for additional
information or the procedure can
be found in the service manual.
To purchase a service manual,
see
Service Publications Ordering
Information on page 13‑15.
Change the fluid and filter at
the intervals listed in Scheduled
Maintenance on page 11‑2, and
be sure to use the fluid listed
in Recommended Fluids and
Lubricants on page 11‑7.
Engine Air Cleaner/Filter
The engine air cleaner/filter is
located in the engine compartment
on the driver side of the vehicle.
See Engine Compartment Overview
on page 10‑6 for more information
on location.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at
the scheduled maintenance
intervals and replace it at the first
oil change after each 80 000 km
(50,000 mi) interval. See Scheduled
Maintenance on page 11‑2 for more
information. If you are driving in
dusty/dirty conditions, inspect the
filter at each engine oil change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter,
remove the filter from the vehicle
and lightly shake the filter to release
loose dust and dirt. If the filter
remains covered with dirt, a new
filter is required.
Page 341 of 462

Black plate (29,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-29
Park Brake and P (Park)
Mechanism Check
{WARNING
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move.Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the parking brake.
.To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.
.To check the P (Park)
mechanism's holding ability:
With the engine running, shift
to P (Park). Then release the
parking brake followed by the
regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear and cracking.
See Scheduled Maintenance on
page 11‑2 for more information.
Replacement blades come in
different types and are removed
in different ways. For proper type
and length, see Maintenance
Replacement Parts on page 11‑9.
To replace the windshield wiper
blade:
1. Pull the windshield wiper assembly away from the
windshield.
Page 373 of 462

Black plate (61,1)Buick LaCrosse Owner Manual - 2011
Vehicle Care 10-61
Tire Inspection
GM recommends that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
.The indicators at three or
more places around the tire
can be seen.
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord
or fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated
every 12 000 km (7,500 mi).
SeeScheduled Maintenance on
page 11‑2.
The purpose of a regular tire
rotation is to achieve a uniform
wear for all tires on the vehicle.
This will ensure that the vehicle
continues to perform most like it
did when the tires were new. Any time you notice unusual
wear, rotate the tires as soon
as possible and check wheel
alignment. Also check for
damaged tires or wheels.
See
When It Is Time for New
Tires on page 10‑63 andWheel
Replacement on page 10‑68.
When rotating the vehicle's tires,
always use the correct rotation
pattern shown here.
Page 413 of 462

Black plate (1,1)Buick LaCrosse Owner Manual - 2011
Service and Maintenance 11-1
Service and
Maintenance
General Information
General Information . . . . . . . . . . 11-1
Scheduled Maintenance
Scheduled Maintenance . . . . . 11-2
Recommended Fluids,
Lubricants, and Parts
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . 11-7
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . 11-9
Maintenance Records
Maintenance Records . . . . . . 11-10
General Information
Notice: Maintenance
intervals, checks, inspections,
recommended fluids, and
lubricants are necessary to
keep this vehicle in good
working condition. Damage
caused by failure to follow
scheduled maintenance might
not be covered by the vehicle
warranty.
As the vehicle owner, you are
responsible for the scheduled
maintenance in this section.
We recommend having your
dealer perform these services.
Proper vehicle maintenance helps
to keep the vehicle in good working
condition, improves fuel economy,
and reduces vehicle emissions for
better air quality. Because of all the different ways
people use vehicles, maintenance
needs vary. The vehicle might need
more frequent checks and services.
Please read the information under
Scheduled Maintenance. To keep
the vehicle in good condition, see
your dealer.
The maintenance schedule is for
vehicles that:
.Carry passengers and cargo
within recommended limits on
the Tire and Loading Information
label. See
Vehicle Load Limits
on page 9‑12.
.Are driven on reasonable road
surfaces within legal driving
limits.
.Use the recommended fuel.
See Recommended Fuel on
page 9‑50.
Page 414 of 462

Black plate (2,1)Buick LaCrosse Owner Manual - 2011
11-2 Service and Maintenance
{WARNING
Performing maintenance work can
be dangerous. Some jobs can
cause serious injury. Perform
maintenance work only if you
have the required know-how and
the proper tools and equipment.
If in doubt, see your dealer to
have a qualified technician do
the work. SeeDoing Your Own
Service Work on page 10‑4.
At your dealer, you can be
certain that you will receive the
highest level of service available.
Your dealer has specially trained
service technicians, uses genuine replacement parts, as well as,
up‐to‐date tools and equipment
to ensure fast and accurate
diagnostics.
The proper replacement parts,
fluids, and lubricants to use are
listed in
Recommended Fluids
and Lubricants on page 11‑7 and
Maintenance Replacement Parts on
page 11‑9. We recommend the use
of genuine parts from your dealer.
Rotation of New Tires
To maintain ride, handling,
and performance of the vehicle,
it is important that the first rotation
service for new tires be performed.
Tires should be rotated every
12 000 km/7,500 miles. See Tire
Rotation on page 10‑61.
Scheduled
Maintenance
When the Change Engine Oil
Soon Message Displays
Change engine oil and filter.
See Engine Oil on page 10‑9.
An Emission Control Service.
When the CHANGE ENGINE
OIL SOON message displays,
service is required for the vehicle
as soon as possible, within the next
1 000 km/600 miles. If driving under
the best conditions, the engine oil
life system might not indicate the
need for vehicle service for more
than a year. The engine oil and filter
must be changed at least once a
year and the oil life system must
be reset. Your dealer has trained
service technicians who will perform
this work and reset the system.
Page 422 of 462
Black plate (10,1)Buick LaCrosse Owner Manual - 2011
11-10 Service and Maintenance
Maintenance Records
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the
type of services performed in the boxes provided. Retain all maintenance receipts.
Maintenance Record
DateOdometer
Reading Serviced By Services Performed
Page 435 of 462

Black plate (7,1)Buick LaCrosse Owner Manual - 2011
Customer Information 13-7
Online Owner Center
Buick Owner Center (U.S.)
www.buickownercenter.com
Information and services
customized for your specific
vehicle—all in one convenient
place.
.Digital owner manual, warranty
information, and more.
.Storage for online service and
maintenance records.
.Buick dealer locator for service
nationwide.
.Exclusive privileges and offers.
.Recall notices for your specific
vehicle.
.OnStar and GM Cardmember
Services Earnings summaries. Other Helpful Links:
Buick
—www.buick.com
Buick Merchandise —
www.buickmerchandise.com
Help Center —www.buick.com/
pages/mds/helpcenter/faq.do
.FAQ (Frequently Asked
Questions)
.Contact Us
My GM Canada www.gm.ca
My GM Canada is a
password-protected section of
www.gm.ca where you can save
information on GM vehicles, get
personalized offers, and use handy
tools and forms with greater ease. Here are a few of the valuable
tools and services you will have
access to:
.My Showroom: Find and save
information on vehicles and
current offers in your area.
.My Dealers: Save details such
as address and phone number
for each of your preferred GM
dealers.
.My Driveway: Access quick
links to parts and service
estimates, check trade-in
values, or schedule a service
appointment by adding the
vehicles you own to your
driveway profile.
.My Preferences: Manage your
profile and use tools and forms
with greater ease.
To sign up, visit the My GM.ca
section within www.gm.ca.
Page 444 of 462

Black plate (16,1)Buick LaCrosse Owner Manual - 2011
13-16 Customer Information
Owner Information
Owner publications are written
specifically for owners and intended
to provide basic operational
information about the vehicle.
The Owner Manual includes
the Maintenance Schedule
for all models.
In-Portfolio: Includes a Portfolio,
Owner Manual, and Warranty
Booklet.
RETAIL SELL PRICE:
$35.00 (U.S.) plus handling and
shipping fees.
Without Portfolio: Owner
Manual only.
RETAIL SELL PRICE:
$25.00 (U.S.) plus handling and
shipping fees.
Current and Past Models
Technical Service Bulletins and
Manuals are available for current
and past model GM vehicles.
ORDER TOLL FREE:
1-800-551-4123 Monday - Friday
8:00 AM - 6:00 PM Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit
Helm, Inc. at: www.helminc.com.
Or write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change
without notice and without incurring
obligation. Allow ample time for
delivery.
All listed prices are quoted in
U.S. funds. Make checks payable
in U.S. funds.
Reporting Safety
Defects
Reporting Safety Defects
to the United States
Government
If you believe that your vehicle
has a defect which could cause
a crash or could cause injury or
death, you should immediately
inform the National Highway
Traffic Safety Administration
(NHTSA) in addition to notifying
General Motors.
If NHTSA receives similar
complaints, it may open an
investigation, and if it finds
that a safety defect exists in a
group of vehicles, it may order
a recall and remedy campaign.