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9-28
INSPECTION AND MAINTENANCE
80J21-03E
Uniform Tire Quality Grading
The U.S. National Highway Traffic Safety
Administration has developed a grading
system for evaluating the performance of
passenger car tires. The following informa-
tion will help you understand the grading
system, which applies to vehicles sold in
the U.S. Consult your SUZUKI dealer or
tire retailer for help in choosing the correct
replacement tires for your vehicle.
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All Passenger Car Tires Must Conform To
Federal Safety Requirements in Addition
To These Grades
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 one-half (1 1/2) 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 rep-
resent 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.
CAUTION
For intelligent All Wheel Drive (i-
AWD) models, replacing a tire with
one of a different size, or using differ-
ent brands among the four tires can
result in damage to the drive train.
WARNING
Replacing the wheels and tires
equipped on your vehicle with certain
combinations of aftermarket wheels
and tires can significantly change the
steering and handling characteris-
tics of your vehicle. Oversized tires
may also rub against the fender over
bumps, causing vehicle damage or
tire failure. Therefore, use only those
wheel and tire combinations
approved by SUZUKI Motor Corpora-
tion as standard or optional equip-
ment for your vehicle. For
information regarding the specified
tires, refer to the Tire Information
Label located on the driver’s side
door pillar or the “SPECIFICATIONS”
section.
CAUTION
Replacing the original tires with tires
of a different size may result in false
speedometer or odometer readings.
Check with your SUZUKI dealer
before purchasing replacement tires
that differ in size from the original
tires.
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 charac-
teristics.
Tires: 6