
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 (68,1)Buick Lucerne Owner Manual - 2011
TPMS Malfunction Light and Message
The TPMS will not function properly if one or more of
the TPMS sensors are missing or inoperable. When
the system detects a malfunction, the low tire pressure
warning light flashes for about one minute and then
stays on for the remainder of the ignition cycle. A DIC
warning message also displays. The malfunction light
and DIC warning message come on at each ignition
cycle until the problem is corrected. Some of the
conditions that can cause these to come on are:
.One of the road tires has been replaced with the
spare tire. The spare tire does not have a TPMS
sensor. The malfunction light and the DIC message
should go off after the road tire is replaced and
the sensor matching process is performed
successfully. See "TPMS Sensor Matching
Process" later in this section.
.The TPMS sensor matching process was not done
or not completed successfully after rotating the
tires. The malfunction light and the DIC message
should go off after successfully completing the
sensor matching process. See "TPMS Sensor
Matching Process" later in this section.
.One or more TPMS sensors are missing or
damaged. The malfunction light and the DIC
message should go off when the TPMS sensors
are installed and the sensor matching process is
performed successfully. See your dealer for
service.
.Replacement tires or wheels do not match the
original equipment tires or wheels. Tires and
wheels other than those recommended could
prevent the TPMS from functioning properly. See
Buying New Tires on page 6‑72.
.Operating electronic devices or being near facilities
using radio wave frequencies similar to the TPMS
could cause the TPMS sensors to malfunction.
If the TPMS is not functioning properly, it cannot detect
or signal a low tire condition. See your dealer for
service if the TPMS malfunction light and DIC message
comes on and stays on.
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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 (73,1)Buick Lucerne Owner Manual - 2011
GM recommends replacing tires in sets of four.
This is because uniform tread depth on all tires
will help keep your vehicle performing most like
it did when the tires were new. Replacing less
than a full set of tires can affect the braking
and handling performance of your vehicle. See
Tire Inspection and Rotation
on page 6‑70for
information on proper tire rotation.
{WARNING:
Tires could explode during improper service.
Attempting to mount or dismount a tire could
cause injury or death. Only your dealer or
authorized tire service center should mount or
dismount the tires.
{WARNING:
Mixing tires could cause you to lose
control while driving. If you mix tires of
different sizes, brands, or types (radial and
bias-belted tires), the vehicle may not handle
properly, and you could have a crash. Using
tires of different sizes, brands, or types may
also cause damage to your vehicle. Be sure
to use the correct size, brand, and type of
tires on all wheels. It is all right to drive with
your compact spare temporarily, as it was
developed for use on your vehicle. See
Compact Spare Tire
on page 6‑97.
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Black plate (74,1)Buick Lucerne Owner Manual - 2011
{WARNING:
Using bias-ply tires on the vehicle may
cause the wheel rim flanges to develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly and cause
a crash. Use only radial-ply tires with the
wheels on the vehicle.
If you must replace your vehicle's tires with those
that do not have a TPC Spec number, make sure
they are the same size, load range, speed rating,
and construction type (radial and bias‐belted tires)
as your vehicle's original tires.
Vehicles that have a tire pressure monitoring
system could give an inaccurate low‐pressure
warning if non‐TPC Spec rated tires are installed
on your vehicle. Non‐TPC Spec rated tires may
give a low‐pressure warning that is higher or lower
than the proper warning level you would get with
TPC Spec rated tires. See Tire Pressure Monitor
System
on page 6‑65. Your vehicle's original equipment tires are listed
on the Tire and Loading Information Label. See
Loading the Vehicle
on page 5‑18, for more
information about the Tire and Loading
Information Label and its location on your vehicle.
Different Size Tires and Wheels
If you add wheels or tires that are a different size than
your original equipment wheels and tires, this may
affect the way your vehicle performs, including its
braking, ride and handling characteristics, stability, and
resistance to rollover. Additionally, if your vehicle has
electronic systems such as, antilock brakes, traction
control, and electronic stability control, the performance
of these systems can be affected.
{WARNING:
If different sized wheels are used, there may not
be an acceptable level of performance and safety
if tires not recommended for those wheels are
selected. This increases the chance of a crash
and serious injury. Only use GM specific wheel
and tire systems developed for the vehicle, and
have them properly installed by a GM certified
technician.
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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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