
Black plate (67,1)Buick Lucerne Owner Manual - 2011
If the warning light comes on, stop as soon as possible
and inflate the tires to the recommended pressure
shown on the tire loading information label. See
Loading the Vehicle on page 5‑18.
A message to check the pressure in a specific tire
displays in the Driver Information Center (DIC). The
low tire pressure warning light and the DIC warning
message come on at each ignition cycle until the tires
are inflated to the correct inflation pressure. Using the
DIC, tire pressure levels can be viewed by the driver.
For additional information and details about the DIC
operation and displays seeDIC Operation and Displays
on page 4‑42andDIC Warnings and Messageson
page 4‑49.
The low tire pressure warning light may come on in
cool weather when the vehicle is first started, and then
turn off as the vehicle is driven. This could be an early
indicator that the air pressure is getting low and needs
to be inflated to the proper pressure. A Tire and Loading Information label shows the size
of the original equipment tires and the correct inflation
pressure for the tires when they are cold. See
Loading
the Vehicle
on page 5‑18, for an example of the Tire
and Loading Information label and its location on your
vehicle. Also see Inflation - Tire Pressure on page 6‑64.
Your vehicle's TPMS can warn you about a low tire
pressure condition but it does not replace normal tire
maintenance. See Tire Inspection and Rotation
on
page 6‑70and Tires on page 6‑57.
Notice: Tire sealant materials are not all the same.
A non-approved tire sealant could damage the
TPMS sensors. TPMS sensor damage caused by
using an incorrect tire sealant is not covered by the
vehicle warranty. Always use only the GM-approved
tire sealant available through your dealer or
included in the vehicle.
Factory-installed Tire Inflator Kits use a GM approved
liquid tire sealant. Using non-approved tire sealants
could damage the TPMS sensors. See Tire Sealant and
Compressor Kit
on page 6‑80for information regarding
the inflator kit materials and instructions.
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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.
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Black plate (72,1)Buick Lucerne Owner Manual - 2011
The rubber in tires ages over time, even if they are not
being used. This is also true for the spare tire, if your
vehicle has one. Multiple conditions affect how fast this
aging takes place, including temperatures, loading
conditions, and inflation pressure maintenance. Tires
will typically need to be replaced due to wear before
they may need to be replaced due to age. Consult the
tire manufacturer for more information on when tires
should be replaced.
Vehicle Storage
Tires age when stored normally mounted on a parked
vehicle. Park a vehicle that will be stored for at least
a month in a cool, dry, clean area away from direct
sunlight to slow aging. This area should be free of
grease, gasoline or other substances that can
deteriorate rubber.
Parking for an extended period can cause flat spots
on the tires that may result in vibrations while driving.
When storing a vehicle for at least a month, remove the
tires or raise the vehicle to reduce the weight from the
tires.
Buying New Tires
GM has developed and matched specific tires for
your vehicle. The original equipment tires installed
on your vehicle, when it was new, were designed
to meet General Motors Tire Performance Criteria
Specification (TPC Spec) system rating. If you
need replacement tires, GM strongly recommends
that you get tires with the same TPC Spec rating.
This way, your vehicle will continue to have tires
that are designed to give the same performance
and vehicle safety, during normal use, as the
original tires.
GM's exclusive TPC Spec system considers over
a dozen critical specifications that impact the
overall performance of your vehicle, including
brake system performance, ride and handling,
traction control, and tire pressure monitoring
performance. GM's TPC Spec number is molded
onto the tire's sidewall near the tire size. If the
tires have an all‐season tread design, the TPC
Spec number will be followed by an MS for
mud and snow. SeeTire Sidewall Labeling
on
page 6‑58
for additional information.
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Black plate (76,1)Buick Lucerne Owner Manual - 2011
Traction–AA, A, B, C
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
the tire's ability to stop on wet pavement as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead
braking traction tests, and does not include
acceleration, cornering, hydroplaning, or peak
traction characteristics.
Temperature –A, B, C
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the
tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Safety Standard
No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel than the minimum required by law. Warning: The
temperature grade for this tire is established for a
tire that is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive
loading, either separately or in combination, can
cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned
and balanced carefully at the factory to give you
the longest tire life and best overall performance.
Adjustments to wheel alignment and tire balancing will
not be necessary on a regular basis. However, if you
notice unusual tire wear or your vehicle pulling to
one side or the other, the alignment might need to be
checked. If you notice your vehicle vibrating when
driving on a smooth road, the tires and wheels might
need to be rebalanced. See your dealer for proper
diagnosis.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly
rusted or corroded. If wheel nuts keep coming loose,
the wheel, wheel bolts, and wheel nuts should be
replaced. If the wheel leaks air, replace it (except some
aluminum wheels, which can sometimes be repaired).
See your dealer if any of these conditions exist.
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Black plate (77,1)Buick Lucerne Owner Manual - 2011
Your dealer will know the kind of wheel you need.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset, and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts,
wheel nuts, or Tire Pressure Monitor System (TPMS)
sensors, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts, wheel nuts, and TPMS sensors
for your vehicle.
{WARNING:
Using the wrong replacement wheels, wheel bolts,
or wheel nuts can be dangerous. It could affect
the braking and handling of the vehicle. Tires can
lose air, and cause loss of control, causing a
crash. Always use the correct wheel, wheel bolts,
and wheel nuts for replacement.Notice:
The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
See Changing a Flat Tire
on page 6‑88for more
information.
Used Replacement Wheels
{WARNING:
Replacing a wheel with a used one is dangerous.
How it has been used or how far it has been
driven may be unknown. It could fail suddenly and
cause a crash. When replacing wheels, use a new
GM original equipment wheel.
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Black plate (78,1)Buick Lucerne Owner Manual - 2011
Tire Chains
{WARNING:
If your vehicle has P235/55R17, or P245/50R18
size tires, do not use tire chains. There is not
enough clearance.
Tire chains used on a vehicle without the proper
amount of clearance can cause damage to the
brakes, suspension, or other vehicle parts. The
area damaged by the tire chains could cause you
to lose control of your vehicle and you or others
may be injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer's
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it is contacting your vehicle, and do
not spin your vehicle's wheels.
If you do find traction devices that will fit, install
them on the front tires.Notice:
If your vehicle has P225/60R16 size tires,
use tire chains only where legal and only when you
must. Use only SAE Class S‐type chains that are the
proper size for your tires. Install them on the front
tires and tighten them as tightly as possible with the
ends securely fastened. Drive slowly and follow the
chain manufacturer's instructions. If you can hear
the chains contacting your vehicle, stop and
retighten them. If the contact continues, slow down
until it stops. Driving too fast or spinning the wheels
with chains on will damage your vehicle.
If a Tire Goes Flat
It is unusual for a tire to blowout while you are driving,
especially if you maintain your vehicle's tires properly.
If air goes out of a tire, it is much more likely to leak out
slowly. But if you should ever have a blowout, here are
a few tips about what to expect and what to do:
If a front tire fails, the flat tire creates a drag that pulls
the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer to maintain lane position, and then gently brake to
a stop, well off the road, if possible.
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Black plate (79,1)Buick Lucerne Owner Manual - 2011
A rear blowout, particularly on a curve, acts much like
a skid and may require the same correction you would
use in a skid. In any rear blowout remove your foot from
the accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to go. It may be
very bumpy and noisy, but you can still steer. Gently
brake to a stop, well off the road, if possible.
{WARNING:
Driving on a flat tire will cause permanent damage
to the tire. Re-inflating a tire after it has been
driven on while severely underinflated or flat may
cause a blowout and a serious crash. Never
attempt to re-inflate a tire that has been driven on
while severely underinflated or flat. Have your
dealer or an authorized tire service center repair
or replace the flat tire as soon as possible.
{WARNING:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous without the
appropriate safety equipment and training. If a
jack is provided with the vehicle, it is designed
only for changing a flat tire. If it is used for
anything else, you or others could be badly
injured or killed if the vehicle slips off the jack.
If a jack is provided with the vehicle, only use it for
changing a flat tire.
This vehicle may come with a jack and spare tire or a
tire sealant and compressor kit. To use the jack and
spare tire, see Changing a Flat Tire
on page 6‑88.
To use the tire sealant and compressor kit, see Tire
Sealant and Compressor Kit
on page 6‑80.
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Black plate (80,1)Buick Lucerne Owner Manual - 2011
Tire Sealant and Compressor Kit
{WARNING:
Idling a vehicle in an enclosed area with poor
ventilation is dangerous. Engine exhaust may
enter the vehicle. Engine exhaust contains
Carbon Monoxide (CO) which cannot be seen
or smelled. It can cause unconsciousness and
even death. Never run the engine in an enclosed
area that has no fresh air ventilation. For more
information, seeEngine Exhaust on page 3‑30.
{WARNING:
Overinflating a tire could cause the tire to
rupture and you or others could be injured. Be
sure to read and follow the tire sealant and
compressor kit instructions and inflate the tire to
its recommended pressure. Do not exceed the
recommended pressure.
{WARNING:
Storing the tire sealant and compressor kit or
other equipment in the passenger compartment of
the vehicle could cause injury. In a sudden stop or
collision, loose equipment could strike someone.
Store the tire sealant and compressor kit in its
original location.
If this vehicle has a tire sealant and compressor kit,
there may not be a spare tire, tire changing equipment,
and on some vehicles there may not be a place to store
a tire.
The tire sealant and compressor can be used to
temporarily seal punctures up to 6 mm (¼ in) in the
tread area of the tire. It can also be used to inflate an
under inflated tire.
If the tire has been separated from the wheel, has
damaged sidewalls, or has a large puncture, the tire
is too severely damaged for the tire sealant and
compressor kit to be effective. See Roadside
Assistance Program on page 8‑7.
6-80