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541
uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
Maintenance
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 asph alt and concrete. A tire marked
C may have poor traction performance.
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 te sted 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 ex cessive 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.
■Traction
■Temperature
1 Traction
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.
1Temperature
Warning: The temperature grade for
this tire is establishe d 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.
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542
uuChecking and Maintaining Tires uWear Indicators
Maintenance
Wear Indicators
The groove where the wear indicator is
located is about 1/16 inch (about 1.6 mm)
shallower than elsewher e on the tire. If the
tread has worn so that the indicator is
exposed, replace the tire.
Worn out tires have poor traction on wet
roads.
Tire Service Life
The life of your tires is dependent on many factors, including driving habits, road
conditions, vehicle loading, inflation pre ssure, maintenance history, speed, and
environmental conditions (even when the tires are not in use).
In addition to regular in spections and inflation pres sure maintenance, it is
recommended that you have annual inspecti ons performed once the tires reach five
years old. All tires should be removed fro m service after 10 years from the date of
manufacture, regardless of their condition or state of wear.
1 Checking Tires
High speed driving
We recommend that you do not drive faster than the
posted speed limits and conditions allow. If you drive
at sustained high speeds (over 99 mph or 160 km/h),
adjust the cold tire pressures as shown below to
avoid excessive heat buildup and sudden tire failure.
Tire Size225/50R17 94V
Pressure Front: 36 psi (250 kPa, 2.5 kgf/cm2)
Rear: 33 psi (230 kPa, 2.3 kgf/cm2)
Tire Size235/40R19 96V
Pressure Front: 38 psi (260 kPa, 2.6 kgf/cm2)
Rear: 36 psi (250 kPa, 2.5 kgf/cm2)
Models with 225/50R17 tires
Models with 235/40R19 tires
Example of a Wear
Indicator mark
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543
uuChecking and Maintaining Tires uTire and Wheel Replacement
Maintenance
Tire and Wheel Replacement
Replace your tires with radials of the sa me size, load range, speed rating, and
maximum cold tire pressure rating (as shown on the tire’s sidewall). Using tires of a
different size or construction can cause ce rtain vehicle systems such as the ABS and
Vehicle Stability Assist
TM (VSA ®) system to work incorrectly.
It is best to replace all four tires at the same time. If that isn’t possible, replace the
front or rear tires in pairs.
Make sure that the wheel’s specificati ons match those of the original wheels.
1Tire and Wheel Replacement
3WARNING
Installing improper tires on your vehicle can
affect handling and stability. This can cause
a crash in which you can be seriously hurt or
killed.
Always use the size and type of tires
recommended in this owner’s manual.
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544
uuChecking and Maintaining Tires uTire Rotation
Maintenance
Tire Rotation
Rotating tires according to the maintena nce messages on the driver information
interface helps to distribute wear more evenly and increase tire life.
■Tires without rotation marks Rotate the tires as shown here.
■Tires with rotation marksRotate the tires as shown here.
1Tire Rotation
Tires with directional trea d patterns should only be
rotated front to back (not fr om one side to the other).
Directional tires should be mounted with the rotation
indication mark facing forward, as shown below.
Whenever tires are rotated, you must calibrate the
TPMS
*.
2 TPMS Calibration P. 394
Front
Direction Mark
Front
Front
* Not available on all models
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545
uuChecking and Maintaining Tires uWinter Tires
Maintenance
Winter Tires
If driving on snowy or frozen roads, mount all season marked M+S tires, snow tires,
or tire chains; reduce speed; and maintain sufficient distance between vehicles when
driving.
Be particularly careful wh en operating the steering wheel or brakes to prevent
skidding.
Use tire chains, snow tires, or all season tires when necessary or according to the
law.
When mounting, refer to the following points.
For winter tires:
• Select the size and load ranges that are the same as the original tires.
• Mount the tires to all four wheels.
For tire chains:
• Install them on the front tires only.
• Because your vehicle has limited tire clea rance, we strongly recommend using the
chains listed below:
• Follow the chain manufactur er’s instruction when installing. Mount them as
tightly as you can.
• Check that the chains do not touch the brake lines or suspension.
• Drive slowly.
Cable-type: SCC Radial Chain SC1036
Not recommended to use any type of chains or cable
1Winter Tires
NOTICE
Traction devices that are the wrong size or improperly
installed can damage your vehicle’s brake lines,
suspension, body, and wheels. Stop driving if they are
hitting any part of the vehicle.
When tire chains are mounted, follow the chain
manufacturer’s instructi ons regarding vehicle
operational limits.
If your vehicle is equipp ed with summer tires, be
aware that these tires are not designed for winter
driving conditions. For more information, contact a
dealer.
3WARNING
Using the wrong chains, or not properly
installing chains, can damage the brake
lines and cause a crash in which you can be
seriously injured or killed.
Follow all instruction s in this owner’s
manual regarding the selection and use of
tire chains.
Models with 225/50R17 tires
Models with 235/40R19 tires
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Continued565
uuIf a Tire Goes Flat uTemporarily Repairing a Flat Tire
Handling the Unexpected
7. Press the inflator switch to turn on the kit.
u The compressor starts injecting sealant
and air into the tire.
u When the sealant injection is complete,
continue to add air.
8. After the air pressure reaches front: 33 psi
(230 kPa)/rear: 32 psi (220 kPa), turn off
the kit.
After the air pressure reaches front: 35 psi
(240 kPa)/rear: 32 psi (220 kPa), turn off
the kit.
u To check the pressure, occasionally turn
off the compressor and read the gauge.
9. Unplug the power plug from the accessory
power socket.
10. Unscrew the sealant hose from the tire
valve stem. Reinstall the valve cap.
11. Press the air release button until the gauge
returns to 0 psi (0 kPa).Pressure
Gauge
Inflator
Switch
Models with 225/50R17 94V tires
Models with 235/40R19 96V tires
1Injecting Sealant and Air
Until the sealant injection is complete, the pressure
shown on the pressure gauge will appear higher than
actual. After the sealant injection is complete, the
pressure will drop and then begin to rise again as the
tire is inflated with air. This is normal. To accurately
measure the air pressure usin g the gauge, turn the air
compressor off only after the sealant injection is
complete.
If the required air pressure is not reached within 10
minutes, the tire may be too severely damaged for
the kit to provide the necessa ry seal, and your vehicle
will need to be towed.
See a dealer for a replacement sealant bottle and
proper disposal of an empty bottle.
Sealant Hose
Tire Valve
Stem
Air Release Button
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568
uuIf a Tire Goes Flat uTemporarily Repairing a Flat Tire
Handling the Unexpected
6. If the air pressure is
• Less than 19 psi (130kPa):
Do not add air or continue driving. The leak is too severe. Call for help and have
your vehicle towed.
2 Emergency Towing P. 597
•Front: 33 psi (230 kPa)/rear: 32 psi (220 kPa) or more:
• Front: 35 psi (240 kPa)/rear: 32 psi (220 kPa) or more:
Continue driving for another 10 minutes or until you reach the nearest service
station, whichever is sooner. Do not exce ed 50 mph (80 km/h). If you have not
reached a service station, stop and check the tire pressure.
u If the air pressure does not go down after the 10 minute dr iving, you do not
need to check the pressure any more.
Models with 225/50R17 94V tires
Models with 235/40R19 96V tires
All models
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569
uuIf a Tire Goes Flat uTemporarily Repairing a Flat Tire
Continued
Handling the Unexpected
• Greater than 19 psi (130 kPa), but less than front: 33 psi (230 kPa)/rear: 32
psi (220 kPa):
Turn the air compressor on to inflate the ti re until the tire pressure reaches front:
33 psi (230 kPa)/rear : 32 psi (220 kPa).
2Inflating an Under-inflated Tire P. 571
•Greater than 19 psi (130 kPa), but less than front: 35 psi (240 kPa)/rear: 32
psi (220 kPa):
Turn the air compressor on to inflate the ti re until the tire pressure reaches front:
35 psi (240 kPa)/rear : 32 psi (220 kPa).
2Inflating an Under-inflated Tire P. 571
Then, drive carefully for 10 more minutes or until you reach the nearest service
station, whichever is sooner. Do not exceed 50 mph (80 km/h). If you have not
reached a service station, stop and check the tire pressure.
u You should repeat this procedure as long as the air pressure is not within the
range indicated for the tire size.
Models with 225/50R17 94V tires
Models with 235/40R19 96V tires
All models
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