Kia SORENTO HEV 2023 Manual page 590

Maintenance
explains what the letters and numbers in
the tyre size designation mean.
Example tyre size designation:
(These numbers are provided as an
example only; your tyre size designator
could vary depending on your vehicle.)
P235/55R19 108T
235 - Tyre width in millimetres.
55 - Aspect ratio. The tyre's section
height as a percentage of its width.
R - Tyre construction code (Radial).
19 - Rim diameter in inches.
108 - Load Index, a numerical code
associated with the maximum load the
tyre can carry.
T - Speed Rating Symbol. See the speed
rating chart in this section for additional
information.
Wheel size designation
Wheels are also marked with important
information that you need if you ever
have to replace one. The following
explains what the letters and numbers in
the wheel size designation mean.
Example wheel size designation:
7.5JX19
7.5 - Rim width in inches.
J - Rim contour designation.
19 - Rim diameter in inches.
Tyre speed ratings
The chart below lists many of the differ-
ent speed ratings currently being used
for passenger car tyres. The speed rat-
ing is part of the tyre size designation on
the sidewall of the tyre. This symbol cor-
responds to that tyre's designed maxi-
mum safe operating speed.
8 46
Speed Rating Symbol
S
T
H
V
W
Y
3. Checking tyre life (TIN : Tyre
Identification Number)
Any tyres that are over 6 years old,
based on the manufacturing date,
(including the spare tyre) should be
replaced by new ones. You can find the
manufacturing date on the tyre sidewall
(possibly on the inside of the wheel), dis-
playing the DOT Code. The DOT Code is
a series of numbers on a tyre consisting
of numbers and English letters. The
manufacturing date is designated by the
last four digits (characters) of the DOT
code.
DOT: XXXX XXXX OOOO
The front part of the DOT means a plant
code number, tyre size and tread pat-
tern and the last four numbers indicate
week and year manufactured.
For example:
DOT XXXX XXXX 1622 represents that
the tyre was produced in the 16th week
of 2022.
WARNING
Tyre age
Tyres degrade over time, even when
they are not being used. Regardless of
the remaining tread, we recommend
that tyres be replaced after approxi-
mately six (6) years of normal service.
Heat caused by hot climates or frequent
high loading conditions can accelerate
the aging process. Failure to follow this
Tyres and wheels
Maximum Speed
180 km/h (112 mph)
190 km/h (118 mph)
210 km/h (130 mph)
240 km/h (149 mph)
270 km/h (168 mph)
300 km/h (186 mph)