
Black plate (22,1)Buick Lucerne Owner Manual - 2011
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that indicates when
to change the engine oil and filter. This is based on
engine revolutions and engine temperature, and not on
mileage. Based on driving conditions, the mileage at
which an oil change is indicated can vary considerably.
For the oil life system to work properly, the system must
be reset every time the oil is changed.
When the system has calculated that oil life has been
diminished, it indicates that an oil change is necessary.
A CHANGE ENGINE OIL SOON message comes on.
SeeDIC Warnings and Messages
on page 4‑49.
Change the oil as soon as possible within the next
600 miles (1 000 km). It is possible that, if driving under
the best conditions, the oil life system might indicate
that an oil change is not necessary for up to a year. The
engine oil and filter must be changed at least once a
year and, at this time, the system must be reset. Your
dealer has trained service people who will perform this
work and reset the system. It is also important to check
the oil regularly over the course of an oil drain interval
and keep it at the proper level. If the system is ever reset accidentally, the oil must be
changed at 3,000 miles (5 000 km) since the last oil
change. Remember to reset the oil life system
whenever the oil is changed.
How to Reset the Engine Oil Life
System
Reset the system whenever the engine oil is changed
so that the system can calculate the next engine oil
change. Always reset the engine oil life to 100% after
every oil change. It will not reset itself. To reset the
system:
1. Display the OIL LIFE REMAINING on the DIC.
2. Press and hold the SET/RESET button on the DIC for more than five seconds. The oil life will change
to 100%.
If the CHANGE ENGINE OIL SOON message comes
back on when the vehicle is started, the engine oil life
system has not been reset. Repeat the procedure.
6-22

Black plate (24,1)Buick Lucerne Owner Manual - 2011
To reinstall the cover:1. Align the two hinges located on the inboard side of the cover.
2. Push the cover slightly down and towards the engine to engage the tabs in the hinges and align
the two screws.
3. Tighten the two screws on the top of the engine air cleaner/filter cover.
{WARNING:
Operating the engine with the air cleaner/filter off
can cause you or others to be burned. The air
cleaner not only cleans the air; it helps to stop
flames if the engine backfires. Use caution when
working on the engine and do not drive with the
air cleaner/filter off.
Notice: If the air cleaner/filter is off, dirt can easily
get into the engine, which could damage it. Always
have the air cleaner/filter in place when you are
driving.
Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
A good time to check the automatic transmission fluid
level is when the engine oil is changed.
Change the fluid and filter at the intervals listed in
Scheduled Maintenance
on page 7‑3and be sure
to use the transmission fluid listed in Recommended
Fluids and Lubricants on page 7‑8.
How to Check Automatic Transmission
Fluid (3.9L Engine)
Because this operation can be a little difficult, you
may choose to have this done at the dealer service
department.
If you do it yourself, be sure to follow all the instructions
here, or you could get a false reading on the dipstick.
Notice: Too much or too little fluid can damage
the transmission. Too much can mean that some
of the fluid could come out and fall on hot engine
parts or exhaust system parts, starting a fire. Too
little fluid could cause the transmission to overheat.
Be sure to get an accurate reading if checking the
transmission fluid.
6-24

Black plate (42,1)Buick Lucerne Owner Manual - 2011
Brake Adjustment
Every time the brakes are applied, with or without the
vehicle moving, the brakes adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have to be of top quality and work well together if
the vehicle is to have really good braking. The vehicle
was designed and tested with top-quality brake parts.
When parts of the braking system are replaced—for
example, when the brake linings wear down and new
ones are installed —be sure to get new approved
replacement parts. If this is not done, the brakes might
not work properly. For example, if someone puts in
brake linings that are wrong for the vehicle, the balance
between the front and rear brakes can change —for the
worse. The braking performance expected can change
in many other ways if the wrong replacement brake
parts are installed.
Battery
Refer to the replacement number on the original battery
label when a new battery is needed.
{DANGER:
Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals
known to the State of California to cause cancer
and reproductive harm. Wash hands after
handling.
The battery is under the rear seat cushion. To access
the battery, see “Removing the Rear Seat Cushion”
under Rear Underseat Fuse Block
on page 6‑110.
Access to the battery is not necessary to jump start the
vehicle. See Jump Starting on page 6‑44.
6-42

Black plate (71,1)Buick Lucerne Owner Manual - 2011
After the tires have been rotated, adjust the front
and rear inflation pressures as shown on the Tire
and Loading Information label. SeeInflation - Tire
Pressure
on page 6‑64and Loading the Vehicleon
page 5‑18
.
Reset the Tire Pressure Monitor System. See Tire
Pressure Monitor Operation
on page 6‑66.
Make certain that all wheel nuts are properly
tightened. See “Wheel Nut Torque” under
Capacities and Specifications
on page 6‑116.
{WARNING:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after time. The wheel could
come off and cause an accident. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the
vehicle. In an emergency, you can use a
cloth or a paper towel to do this; but be
sure to use a scraper or wire brush later,
if needed, to get all the rust or dirt off. See
Changing a Flat Tire
on page 6‑88. Lightly coat the center of the wheel hub with
wheel bearing grease after a wheel change or tire
rotation to prevent corrosion or rust build-up. Do
not get grease on the flat wheel mounting surface
or on the wheel nuts or bolts.
When It Is Time for New Tires
Various factors, such as maintenance, temperatures,
driving speeds, vehicle loading, and road conditions
influence when you need new tires.
One way to tell when it is
time for new tires is to
check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of tread
remaining. See
Tire
Inspection and Rotation
on page 6‑70for
additional information.
6-71

Black plate (100,1)Buick Lucerne Owner Manual - 2011
To clean:1. Saturate a lint-free, clean white cloth with water or club soda.
2. Wring the cloth to remove excess moisture.
3. Start on the outside edge of the soil and gently rub toward the center. Continue cleaning, using a clean
area of the cloth each time it becomes soiled.
4. Continue to gently rub the soiled area until the cleaning cloth remains clean.
5. If the soil is not completely removed, use a mild soap solution and repeat the cleaning process that
was used with plain water.
If any of the soil remains, a commercial fabric cleaner
or spot lifter may be necessary. When a commercial
upholstery cleaner or spot lifter is to be used, test a
small hidden area for colorfastness first. If the locally
cleaned area gives any impression that a ring formation
may result, clean the entire surface.
After the cleaning process has been completed, a paper
towel can be used to blot excess moisture from the
fabric or carpet.Leather
Leather, and lighter colored leather in particular, will
need more frequent cleaning to prevent the buildup of
dust, dirt, and colors transferred from other items so
that these do not become permanent stains.
To remove dust, a soft cloth dampened with water can
be used. If a more thorough cleaning is necessary, a
soft cloth dampened with a mild soap solution can be
used. Your dealer has a GM approved leather cleaner
available that provides superior cleaning performance
when used regularly on finished automotive leathers.
Allow the leather to dry naturally. Do not use heat,
steam, spot lifters or spot removers, or shoe polish on
leather. Many commercial leather cleaners and coatings
that are sold to preserve and protect leather may
permanently change the appearance and feel of the
leather and are not recommended. Do not use silicone
or wax-based products, or those containing organic
solvents to clean the vehicle's interior because they
can alter the appearance by increasing the gloss in a
non-uniform manner.
6-100

Black plate (5,1)Buick Lucerne Owner Manual - 2011
Once a Year
.Starter switch check. SeeOwner Checks and
Services on page 7‑6.
.Automatic transmission shiftlock control function
check. See Owner Checks and Serviceson
page 7‑6.
.Ignition transmission lock check. See Owner
Checks and Services on page 7‑6.
.Parking brake and automatic transmission P (Park)
mechanism check. See Owner Checks and
Services on page 7‑6.
.Accelerator pedal check for damage, high effort,
or binding. Replace if needed.
.If the vehicle has a Tire Sealant and Compressor
Kit, check the sealant expiration date printed on
the instruction label of the kit. See Tire Sealant and
Compressor Kit on page 6‑80.
.Underbody flushing service.
.Hood/Decklid/Liftgate/Liftglass Support Gas Strut
Service: Visually inspect gas strut, if equipped, for
signs of wear, cracks, or other damage. Check the
hold open ability of the gas strut. Contact your
dealer if service is required.
First Engine Oil Change After Every
40 000 km/25,000 Miles
.Passenger compartment air filter replacement
(or every 24 months, whichever occurs first).
More frequent replacement may be needed if
you drive in areas with heavy traffic, areas with
poor air quality, or areas with high dust levels.
Replacement may also be needed if you notice
reduced air flow, windows fogging up, or odors.
Your dealer can help you determine when it is the
right time to replace the filter.
First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. See Engine
Air Cleaner/Filter on page 6‑23.
.Automatic transmission fluid change (severe
service) for vehicles mainly driven in heavy city
traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used
for taxi, police, or delivery service. See Automatic
Transmission Fluid on page 6‑24.
.Evaporative control system inspection. Check
all fuel and vapor lines and hoses for proper
hook‐up, routing, and condition. Check that the
purge valve, if the vehicle has one, works properly.
7-5

Black plate (3,1)Buick Lucerne Owner Manual - 2011
The BBB Auto Line Program is an out of court program
administered by the Council of Better Business Bureaus
to settle automotive disputes regarding vehicle repairs
or the interpretation of the New Vehicle Limited
Warranty. Although you may be required to resort to this
informal dispute resolution program prior to filing a court
action, use of the program is free of charge and your
case will generally be heard within 40 days. If you do
not agree with the decision given in your case, you may
reject it and proceed with any other venue for relief
available to you.
You may contact the BBB Auto Line Program using the
toll-free telephone number or write them at the following
address:BBB Auto Line Program
Council of Better Business Bureaus, Inc.
4200 Wilson Boulevard
Suite 800
Arlington, VA 22203-1838
Telephone: 1-800-955-5100
www.dr.bbb.org/goauto This program is available in all 50 states and the
District of Columbia. Eligibility is limited by vehicle age,
mileage, and other factors. General Motors reserves the
right to change eligibility limitations and/or discontinue
its participation in this program.
STEP THREE
—Canadian Owners: In the event that
you do not feel your concerns have been addressed
after following the procedure outlined in Steps One and
Two, General Motors of Canada Limited wants you to
be aware of its participation in a no-charge Mediation/
Arbitration program. General Motors of Canada Limited
has committed to binding arbitration of owner disputes
involving factory-related vehicle service claims. The
program provides for the review of the facts involved
by an impartial third party arbiter, and may include an
informal hearing before the arbiter. The program is
designed so that the entire dispute settlement process,
from the time you file your complaint to the final
decision, should be completed in approximately
70 days. We believe our impartial program offers
advantages over courts in most jurisdictions because it
is informal, quick, and free of charge.
8-3

Black plate (7,1)Buick Lucerne Owner Manual - 2011
Roadside Assistance Program
For U.S.‐purchased vehicles, call1-800-252-1112;
(Text Telephone (TTY): 1‐888‐889‐2438).
For Canadian‐purchased vehicles, call 1-800-268-6800.
Service is available 24 hours a day, 365 days a year.
Calling for Assistance
When calling Roadside Assistance, have the following
information ready:
.Your name, home address, and home telephone
number
.Telephone number of your location
.Location of the vehicle
.Model, year, color, and license plate number of the
vehicle
.Odometer reading, Vehicle Identification Number
(VIN), and delivery date of the vehicle
.Description of the problem
Coverage
Services are provided up to 5 years/160 000 km
(100,000 miles), whichever comes first.
In the U.S., anyone driving the vehicle is covered. In
Canada, a person driving the vehicle without permission
from the owner is not covered.
Roadside Assistance is not a part of the New Vehicle
Limited Warranty. Buick and General Motors of Canada
Limited reserve the right to make any changes or
discontinue the Roadside Assistance program at any
time without notification.
Buick and General Motors of Canada Limited reserve
the right to limit services or payment to an owner or
driver if they decide the claims are made too often,
or the same type of claim is made many times.
Services Provided
.Emergency Fuel Delivery: Delivery of enough
fuel for the vehicle to get to the nearest service
station.
.Lock‐Out Service: Service to unlock the vehicle
if you are locked out. A remote unlock may be
available if you have OnStar
®. For security
reasons, the driver must present identification
before this service is given.
8-7