SUZUKI XL7 2007 2.G Owners Manual

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grade tires based on three perfor-
mance factors: treadwear, traction,
and temperature resistance. For more
information refer to “Uniform Tire
Quality Grading” in this section.
G. Maximum Cold Inflation Load Limit:
Maximum load that can be carried
and the maximum pressure needed to
support that load.
Compact Spare Tire Example
1376093
A. Temporary Use Only:
The compact spare tire or temporary
use tire has a tread life of approxi-
mately 3000 miles (5000 km) and
should not be driven at speeds over
65 mph (105 km/h). The compact
spare tire is for emergency use when
a regular road tire has lost air and
gone flat. If your vehicle has a com-
pact spare tire, refer to “CompactSpare Tire” and “If a Tire Goes Flat”
in this section.
B. Tire Ply Material:
The type of cord and number of plies
in the sidewall and under the tread.
C. Tire Identification Number (TIN):
The letters and numbers following the
DOT (Department of Transportation)
code is the Tire Identification Number
(TIN). The TIN shows the manufac-
turer and plant code, tire size, and
date the tire was manufactured. The
TIN is molded onto both sides of the
tire, although only one side may have
the date of manufacture.
D. Maximum Cold Inflation Load Limit:
Maximum load that can be carried
and the maximum pressure needed to
support that load.
E. Tire Inflation:
The temporary use tire or compact
spare tire should be inflated to 60 psi
(420 kPa). For more information on
tire pressure and inflation refer to
“Inflation – Tire Pressure” in this sec-
tion.
F. Tire Size:
A combination of letters and numbers
define a tire’s width, height, aspect
ratio, construction type, and service
description. The letter T as the first
character in the tire size means the
tire is for temporary use only.
G. TPC Spec (Tire Performance Criteria
Specification):
Original equipment tires designed toSUZUKI’s specific tire performance
criteria have a TPC specification code
molded onto the sidewall. SUZUKI’s
TPC specifications meet or exceed all
federal safety guidelines.
Tire SizeThe following illustration shows an exam-
ple of a typical passenger vehicle tire size.
1376101
A. Passenger (P-Metric) Tire:
The United States version of a metric
tire sizing system. The letter P as the
first character in the tire size means a
passenger vehicle tire engineered to
standards set by the U.S. Tire and
Rim Association.
B. Tire Width:
The three-digit number indicates the
tire section width in millimeters from
sidewall to sidewall.

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C. Aspect Ratio:
A two-digit number that indicates the
tire height-to-width measurements.
For example, if the tire size aspect
ratio is 60, as shown in item C of the
illustration, it would mean that the
tire’s sidewall is 60 percent as high as
it is wide.
D. Construction Code:
A letter code is used to indicate the
type of ply construction in the tire. The
letter R means radial ply construction;
the letter D means diagonal or bias
ply construction; and the letter B
means belted-bias ply construction.
E. Rim Diameter:
Diameter of the wheel in inches.
F. Service Description:
These characters represent the load
range and speed rating of the tire.
The load index represents the load
carry capacity a tire is certified to
carry. The load index can range from
1 to 279. The speed rating is the max-
imum speed a tire is certified to carry
a load. Speed ratings range from A to
Z.
Tire Terminology and DefinitionsAir Pressure:
The amount of air inside the tire pressing
outward on each square inch of the tire. Air
pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight:
This means the combined weight of
optional accessories. Some examples of
optional accessories are, automatic trans-
mission/transaxle, power steering, power
brakes, power windows, power seats, and
air conditioning.
Aspect Ratio:
The relationship of a tire’s height to its
width.
Belt:
A rubber coated layer of cords that is
located between the plies and the tread.
Cords may be made from steel or other
reinforcing materials.
Bead:
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Bias Ply Tire:
A pneumatic tire in which the plies are laid
at alternate angles less than 90 degrees to
the centerline of the tread.
Cold Tire Pressure:
The amount of air pressure in a tire, mea-
sured in pounds per square inch (psi) orkilopascals (kPa) before a tire has built up
heat from driving. Refer to “Inflation – Tire
Pressure” in this section.
Curb Weight:
This means the weight of a motor vehicle
with standard and optional equipment
including the maximum capacity of fuel, oil,
and coolant, but without passengers and
cargo.
DOT Markings:
A code molded into the sidewall of a tire
signifying that the tire is in compliance with
the U.S. Department of Transportation
(DOT) motor vehicle safety standards. The
DOT code includes the Tire Identification
Number (TIN), an alphanumeric designator
which can also identify the tire manufac-
turer, production plant, brand, and date of
production.
GVWR:
Gross Vehicle Weight Rating. Refer to
“Loading Your Vehicle” in “Your Driving,
the Road, and Your Vehicle” in the “Driving
Your Vehicle” section.
GAWR FRT:
Gross Axle Weight Rating for the front
axle. Refer to “Loading Your Vehicle” in
“Your Driving, the Road, and Your Vehicle”
in the “Driving Your Vehicle” section.
GAWR RR:
Gross Axle Weight Rating for the rear axle.
Refer to “Loading Your Vehicle” in “Your

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Driving, the Road, and Your Vehicle” in the
“Driving Your Vehicle” section.
Intended Outboard Sidewall:
The side of an asymmetrical tire, that must
always face outward when mounted on a
vehicle.
Kilopascal (kPa):
The metric unit for air pressure.
Light Truck (LT-Metric) Tire:
A tire used on light duty trucks and some
multipurpose passenger vehicles.
Load Index:
An assigned number ranging from 1 to 279
that corresponds to the load carrying
capacity of a tire.
Maximum Inflation Pressure:
The maximum air pressure to which a cold
tire may be inflated. The maximum air
pressure is molded onto the sidewall.
Maximum Load Rating:
The load rating for a tire at the maximum
permissible inflation pressure for that tire.
Maximum Loaded Vehicle Weight:
The sum of curb weight, accessory weight,
vehicle capacity weight, and production
options weight.
Normal Occupant Weight:
The number of occupants a vehicle is
designed to seat multiplied by 150 lbs (68
kg). Refer to “Loading Your Vehicle” in
“Your Driving, the Road, and Your Vehicle”
in the “Driving Your Vehicle” section.Occupant Distribution:
Designated seating positions.
Outward Facing Sidewall:
The side of an asymmetrical tire that has a
particular side that faces outward when
mounted on a vehicle. The side of the tire
that contains a whitewall, bears white let-
tering, or bears manufacturer, brand, and/
or model name molding that is higher or
deeper than the same moldings on the
other sidewall of the tire.
Passenger (P-Metric) Tire:
A tire used on passenger cars and some
light duty trucks and multipurpose vehicles.
Recommended Inflation Pressure:
Vehicle manufacturer’s recommended tire
inflation pressure as shown on the tire
placard. Refer to “Inflation – Tire Pressure”
in this section and “Loading Your Vehicle”
in “Your Driving, the Road, and Your Vehi-
cle” in the “Driving Your Vehicle” section.
Radial Ply Tire:
A pneumatic tire in which the ply cords that
extend to the beads are laid at 90 degrees
to the centerline of the tread.
Rim:
A metal support for a tire and upon which
the tire beads are seated.
Sidewall:
The portion of a tire between the tread and
the bead.Speed Rating:
An alphanumeric code assigned to a tire
indicating the maximum speed at which a
tire can operate.
Traction:
The friction between the tire and the road
surface. The amount of grip provided.
Tread:
The portion of a tire that comes into con-
tact with the road.
Treadwear Indicators:
Narrow bands, sometimes called wear
bars, that show across the tread of a tire
when only 1/16 inch (1.6 mm) of tread
remains. Refer to “When It Is Time for New
Tires” in this section.
UTQGS (Uniform Tire Quality Grading
Standards):
A tire information system that provides
consumers with ratings for a tire’s traction,
temperature, and treadwear. Ratings are
determined by tire manufacturers using
government testing procedures. The rat-
ings are molded into the sidewall of the
tire. Refer to “Uniform Tire Quality Grad-
ing” in this section.
Vehicle Capacity Weight:
The number of designated seating posi-
tions multiplied by 150 lbs (68 kg) plus the
rated cargo load. Refer to “Loading Your
Vehicle” in “Your Driving, the Road, and
Your Vehicle” in the “Driving Your Vehicle”
section.

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Vehicle Maximum Load on the Tire:
Load on an individual tire due to curb
weight, accessory weight, occupant
weight, and cargo weight.
Vehicle Placard:
A label permanently attached to a vehicle
showing the vehicle’s capacity weight and
the original equipment tire size and recom-
mended inflation pressure. Refer to “Tire
and Loading Information Label” under
“Loading Your Vehicle” in “Your Driving,
the Road, and Your Vehicle” in the “Driving
Your Vehicle” section.Inflation – Tire PressureTires need the correct amount of air pres-
sure to operate effectively.
A Tire and Loading Information label is
attached to the vehicle’s center pillar (B-
pillar). This label shows your vehicle’s orig-
inal equipment tires and the correct infla-
tion pressures for your tires when they are
cold. The recommended cold tire inflation
pressure, shown on the label, is the mini-
mum amount of air pressure needed to
support your vehicle’s maximum load car-
rying capacity.
For additional information regarding how
much weight your vehicle can carry, and
an example of the Tire and Loading Infor-
mation label, refer to “Loading Your Vehi-cle” in “Your Driving, the Road, and Your
Vehicle” in the “Driving Your Vehicle” sec-
tion. How you load your vehicle affects
vehicle handling and ride comfort. Never
load your vehicle with more weight than it
was designed to carry.
When to Check
Check your tires once a month or more. Do
not forget to check the compact spare tire,
it should be at 60 psi (420 kPa). For addi-
tional information regarding the compact
spare tire, refer to “Compact Spare Tire” in
this section.
How to Check
Use a good quality pocket-type gage to
check tire pressure. You cannot tell if your
tires are properly inflated simply by looking
at them. Radial tires may look properly
inflated even when they are under-inflated.
Check the tire’s inflation pressure when
the tires are cold. Cold means your vehicle
has been sitting for at least three hours or
driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve
stem. Press the tire gage firmly onto the
valve to get a pressure measurement. If
the cold tire inflation pressure matches the
recommended pressure on the Tire and
Loading Information label, no further
adjustment is necessary. If the inflation
pressure is low, add air until you reach the
recommended amount.
CAUTION
Do not let anyone tell you that under-
inflation or over-inflation is all right. It
is not. If your tires do not have
enough air (under-inflation), you can
get the following:
 Too much flexing
 Too much heat
 Tire overloading
 Premature or irregular wear
 Poor handling
 Reduced fuel economy
If your tires have too much air (over-
inflation), you can get the following:
 Unusual wear
 Poor handling
 Rough ride
 Needless damage from road haz-
ards

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If you overfill the tire, release air by push-
ing on the metal stem in the center of the
tire valve. Re-check the tire pressure with
the tire gage.
Be sure to put the valve caps back on the
valve stems. They help prevent leaks by
keeping out dirt and moisture.Tire Pressure Monitor SystemYour vehicle has a Tire Pressure Monitor
System (TPMS). This system uses radio
and sensor technology to check tire pres-
sure levels. TPMS sensors are mounted
onto each tire and wheel assembly, except
for the spare tire. The TPMS sensors mon-
itor the air pressure in your vehicle's tires
and transmit tire pressure readings to a
receiver located in the vehicle.
Low Tire Pressure Warning Light
1198521
Your vehicle has also been equipped with
a TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction,
the telltale will flash for approximately one
minute and then remain continuously illu-
minated. This sequence will continue upon
subsequent vehicle start-ups as long as
the malfunction exists.
When the malfunction indicator is illumi-
nated, the system may not be able to
detect or signal low tire pressure as
intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate
tires or wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction tell-
tale after replacing one or more tires or
wheels on your vehicle to ensure that the
replacement or alternate tires and wheels
WARNING
Each tire, including the spare (if pro-
vided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehi-
cle manufacturer on the vehicle plac-
ard or tire inflation pressure label. (If
your vehicle has tires of a different
size than the size indicated on the
vehicle placard or tire inflation pres-
sure label, you should determine the
proper tire inflation pressure for
those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your
tires is significantly under-inflated.
Accordingly, when the low tire pres-
sure telltale illuminates, you should
stop and check your tires as soon as
possible, and inflate them to the
proper pressure. Driving on a signifi-
cantly under-inflated tire causes the
tire to overheat and can lead to tire
failure. Under-inflation also reduces
fuel efficiency and tire tread life, and
may affect the vehicle’s handling and
stopping ability.
(Continued)
WARNING
(Continued)
Please note that the TPMS is not a
substitute for proper tire mainte-
nance, and it is the driver’s responsi-
bility to maintain correct tire
pressure, even if under-inflation has
not reached the level to trigger illumi-
nation of the TPMS low tire pressure
telltale.

5-32 SERVICE AND APPEARANCE CARE
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allow the TPMS to continue to function
properly.
When a low tire pressure condition is
detected, the TPMS will illuminate the low
tire pressure warning symbol on the instru-
ment panel cluster, and at the same time a
message to check the pressure in a spe-
cific tire will appear on the Driver Informa-
tion Center (DIC) display. The low tire
pressure warning symbol on the instru-
ment panel cluster and the check tire pres-
sure message will appear at each ignition
cycle until the tires are inflated to the cor-
rect inflation pressure. Using the DIC, tire
pressure levels can be viewed by the
driver. For additional information and
details about the DIC operation and dis-
plays refer to “DIC Operation and Dis-
plays” and “DIC Warnings and Messages”
in “Driver Information Center (DIC)” in the
“Instrument Panel” section.
The low tire pressure warning light may
come on in cool weather when the vehicle
is first started, and then turn off as you
start to drive. This may be an early indica-
tor that the air pressure in the tire(s) are
getting low and need to be inflated to the
proper pressure.
A Tire and Loading Information Label,
attached to your vehicle, shows the size of
your vehicle’s original equipment tires and
the correct inflation pressure for your vehi-
cle's tires when they are cold. Refer to
“Loading Your Vehicle” in “Your Driving,the Road, and Your Vehicle” in the “Driving
Your Vehicle” section, for an example of
the Tire and Loading Information Label
and its location on your vehicle. Also refer
to “Inflation - Tire Pressure” in this section.
Your vehicle’s TPMS system can warn you
about a low tire pressure condition but it
does not replace normal tire maintenance.
Refer to “Tire Inspection and Rotation” and
“Tires” in this section.
The TPMS will not function properly if one
or more of the TPMS sensors are missing
or inoperable. If the system detects a miss-
ing or inoperable sensor, an error mes-
sage SERVICE TIRE MONITOR SYSTEM
will be shown on the DIC display. If you
have replaced a tire/wheel assembly with-
out transferring the TPMS sensors, the
error message will be displayed. Once you
re-install the TPMS sensors, the error
message should go off. See your SUZUKI
dealer for service if all TPMS sensors are
installed and the error message comes on
and stays on.
TPMS Sensor Matching Process
Each TPMS sensor has a unique identifi-
cation code. Any time you replace one ormore of the TPMS sensors or rotate the
vehicle’s tires, the identification codes will
need to be matched to the new tire/wheel
position. The sensors are matched, to the
tire/wheel positions, in the following order:
driver side front tire, passenger side front
tire, passenger side rear tire, and driver
side rear tire using a TPMS diagnostic tool.
See your SUZUKI dealer for service.
The TPMS sensors may also be matched
to each tire/wheel position by increasing or
decreasing the tire’s air pressure. When
increasing the tire’s pressure, do not
exceed the maximum inflation pressure
indicated on the tire’s sidewall.
You will have two minutes to match each
tire and wheel position. If it takes longer
than two minutes to match any tire and
wheel position, the matching process
stops and you will need to start over.
The TPMS matching process is outlined
below:
1) Set the parking brake.
2) Turn the ignition switch to RUN with the
engine off.
3) Using the DIC, press the vehicle infor-
mation button until the TIRE LOCA-
TIONS PRESS TO LEARN message
displays.
4) Press the set/reset button to allow the
system to learn the tire positions. The
horn will sound twice to indicate the
receiver is ready, and the TIRE
LEARNING ACTIVE message displays.
CAUTION
Do not use a tire sealant if your vehi-
cle has Tire Pressure Monitors. The
liquid sealant can damage the tire
pressure monitor sensors.

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The TPMS system is ready for the sen-
sor matching process to begin.
5) Start with the driver side front tire.
6) Remove the valve cap from the tire’s
valve stem. Activate the TPMS sensor
by increasing or decreasing the tire’s
air pressure for five seconds, or until a
horn chirp sounds. The horn chirp,
which may take up to 30 seconds to
sound, confirms that the sensor identifi-
cation code has been matched to the
tire/wheel position. To decrease the
tire’s air-pressure use the pointed end
of the valve cap, a pencil-style air pres-
sure gage, or a key.
7) Proceed to the passenger side front
tire, and repeat the procedure in Step 6.
8) Proceed to the passenger side rear tire,
and repeat the procedure in Step 6.
9) Proceed to the driver side rear tire, and
repeat the procedure in Step 6.
10)After hearing the confirming horn chirp
for the driver side rear tire, the tire
learning process ends. Turn the ignition
switch to LOCK.
11)Set all four tires to the recommended
air pressure level as indicated on the
tire and loading information label.
12)Put the valve caps back on the valve
stems.
Federal Communications Commission
(FCC) and Industry and Science Canada
The Tire Pressure Monitor System (TPMS)
operates on a radio frequency and com-
plies with Part 15 of the FCC Rules. Oper-ation is subject to the following two
conditions:
1) This device may not cause harmful
interference.
2) This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
The Tire Pressure Monitor System (TPMS)
operates on a radio frequency and com-
plies with RSS-210 of Industry and Sci-
ence Canada. Operation is subject to the
following two conditions:
1) This device may not cause interfer-
ence.
2) This device must accept any interfer-
ence received, including interference
that may cause undesired operation of
the device.
Changes or modifications to this system by
other than an authorized service facility
could void authorization to use this equip-
ment.
Tire Inspection and RotationTires should be rotated every 5000 to 8000
miles (8000 to 13000 km).
Any time you notice unusual wear, rotate
your tires as soon as possible and check
wheel alignment. Also check for damaged
tires or wheels. Refer to “When It Is Time
for New Tires” and “Wheel Replacement”
in this section for more information.The purpose of regular rotation is to
achieve more uniform wear for all tires on
the vehicle. The first rotation is the most
important. Refer to “Scheduled Mainte-
nance” in “Maintenance Schedule” in the
“Maintenance Schedule” section for sched-
uled rotation intervals.
811106
When rotating your tires, always use the
correct rotation pattern shown here.
Do not include the compact spare tire in
your tire rotation.
After the tires have been rotated, adjust
the front and rear inflation pressures as
shown on the Tire and Loading Information
label. Refer to “Inflation -Tire Pressure” in
this section and “Loading Your Vehicle” in
“Your Driving, the Road, and Your Vehicle”
in the “Driving Your Vehicle” section.

5-34 SERVICE AND APPEARANCE CARE
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Reset the Tire Pressure Monitor System.
Refer to “TPMS Sensor Matching Process”
under “Tire Pressure Monitor System” in
this section.
Make certain that all wheel nuts are prop-
erly tightened. Refer to “Wheel Nut
Torque” under “Capacities and Specifica-
tions” in this section.
When It Is Time for New Tires
806296
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.
Some commercial truck tires may not have
treadwear indicators.
You need a new tire if any of the following
statements are true:
 You can see the indicators at three or
more places around the tire.
 You can see 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 wellbecause of the size or location of the
damage.
Buying New TiresThe original equipment tires installed on
your vehicle, when it was new, were
designed to meet the Tire Performance
Criteria Specification (TPC spec) system
rating. If you need replacement tires,
Suzuki 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 perfor-
mance and vehicle safety, during normal
use, as the original tires.
The exclusive TPC Spec system considers
over a dozen critical specifications that
impact the overall performance of your
vehicle, including brake system perfor-
mance, ride and handling, traction control,
and tire pressure monitoring performance.
The TPC Spec number is molded onto the
tire’s sidewall by the tire manufacturer. If
the tires have an all-season tread design,
the TPC spec number will be followed by a
MS, for mud and snow. Refer to “Tire Side-
wall Labeling” in this section for additional
information.
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. Refer to “Chang-
ing a Flat Tire” in this section.

5-35 SERVICE AND APPEARANCE CARE
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If you must replace your vehicle’s tires with
those that do not have a TPC Spec num-
ber, 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 monitor-
ing system may 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-pres-
sure warning that is higher or lower than
the proper warning level you would get
with TPC Spec rated tires. Refer to “Tire
Pressure Monitor System” in this section.
Your vehicle’s original equipment tires are
listed on the Tire and Loading Information
Label. This label is attached to the vehi-
cle’s center pillar (B-pillar). Refer to “Load-
ing Your Vehicle” in “Your Driving, the
Road, and Your Vehicle” in the “Driving
Your Vehicle” section, for more information
about the Tire and Loading Information
Label.
Different Size Tires and Wheels
If you add wheels or tires that are a differ-
ent size than your original equipment
wheels and tires, this may affect the way
your vehicle performs, including its brak-
ing, ride and handling characteristics, sta-
bility and resistance to rollover.
Additionally, if your vehicle has electronic
systems such as, anti-lock brakes, traction
control, and electronic stability control, the
performance of these systems can be
affected.Refer to “Buying New Tires” and “Accesso-
ries and Modifications” in this section for
additional information.
Uniform Tire Quality GradingQuality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Tempera-
ture A
The following information relates to the
system developed by the United States
National Highway Traffic Safety Adminis-
tration (NHTSA), which grades tires by
treadwear, traction, and temperature per-
formance. This applies only to vehicles
sold in the United States. The grades are
molded on the sidewalls of most passen-
ger car tires. The Uniform Tire Quality
Grading (UTQG) system does not apply to
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 vehi-
cle. Be sure to use the correct size,
brand, and type of tires on all wheels.
It is all right to drive with your com-
pact spare temporarily, as it was
developed for use on your vehicle.
Refer to “Compact Spare Tire” in this
section.
WARNING
If you use bias-ply tires on your vehi-
cle, the wheel rim flanges could
develop cracks after many miles of
driving. A tire and/or wheel could fail
suddenly, causing a crash. Use only
radial-ply tires with the wheels on
your vehicle.
WARNING
If you add different sized wheels,
your vehicle may not provide an
acceptable level of performance and
safety if tires not recommended for
those wheels are selected. You may
increase the chance that you will
crash and suffer serious injury. Only
use Suzuki specific wheel and tire
systems developed for your vehicle,
and have them properly installed by a
Suzuki certified technician.

5-36 SERVICE AND APPEARANCE CARE
78J00-03E
deep tread, winter-type snow tires, space-
saver, or temporary use spare tires, tires
with nominal rim diameters of 10 to 12
inches (25 to 30 cm), or, to some limited-
production tires.
While the tires available may vary with
respect to these grades, they must also
conform to federal safety requirements.
Treadwear
The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For
example, a tire graded 150 would wear
one and a half (1.5) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in driving habits,
service practices, and differences in road
characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to low-
est, 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 perfor-
mance.Temperature – A, B, C
The temperature grades are A (the high-
est), B, and C, representing the tire’s resis-
tance 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 tem-
perature 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 Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Wheel Alignment and Tire BalanceThe tires and wheels on your vehicle were
aligned and balanced carefully at the fac-
tory 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 vehi-
cle pulling to one side or the other, the
alignment may need to be checked. If you
notice your vehicle vibrating when driving
on a smooth road, your tires and wheels
may need to be rebalanced. See your
dealer for proper diagnosis.
WARNING
The traction grade assigned to this
tire is based on straight-ahead brak-
ing traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction char-
acteristics.
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Exces-
sive speed, underinflation, or exces-
sive loading, either separately or in
combination, can cause heat buildup
and possible tire failure.