Kia Sorento 2023, Руководство пользователя, Страница: 575 / 640

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Maintenance Tires and wheels
WARNING
Tire age
Replace tires within the recommended
time frame. Failure to replace tires as
recommended can result in sudden tire
failure, which could lead to a loss of con
-
trol and an accident.
4. Tire ply composition and mate
-
rial
The number of layers or plies of rubber-
coated fabric in the tire. Tire manufac
-
turers also must indicate the materials in
the tire, which include steel, nylon, poly
-
ester, and others. 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.
5. Maximum permissible inflation
pressure
This number is the greatest amount of
air pressure that should be put in the
tire. Do not exceed the maximum per
-
missible inflation pressure. Refer to "Cer
-
tification label" on page 6-200 for
recommended inflation pressure.
6. Maximum load rating
This number indicates the maximum
load in kilograms and pounds that can
be carried by the tire. When replacing
the tires on the vehicle, always use a tire
that has the same load rating as the fac
-
tory installed tire.
7. Uniform tire quality grading
UNIFORM TIRE QUALITY GRADING
Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum section
width.
For example:
僅 Treadwear 200
僅 Traction AA
僅 Temperature A
Tires degrade over time, even when they
are not being used. Regardless of the
remaining tread, we recommend that
tires be replaced after approximately six
(6) years of normal service. Heat caused
by hot climate or frequent high loading
conditions can accelerate the aging pro
-
cess.
Tread wear
The tread wear grade is a comparative
rating 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 times (1½) as well
on the government course as a tire
graded 100.
The relative performance of tires
depends upon the actual conditions of
their use. Performance may depart sig
-
nificantly from the norm due to varia
-
tions in driving habits, service practices
and differences in road characteristics
and climate.
These grades are molded on the side-
walls of passenger vehicle tires. The tires
available as standard or optional equip
-
ment on your vehicle may vary with
respect to grade.