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NOTE
The tire's load index and speed rating may
not appear on the sidewall because they
are not required by law.
7. M+S or M/S = Mud and Snow, AT = All
Terrain, AS = All Season
8. U.S. DOT Tire Identification Number
(TIN): This begins with the letters "DOT"
and indicates that the tire meets all federal
standards. The next two numbers are the
factory code where the tire was manufac-
tured, the next two are the tire size code
and the last four numbers represent the
week and year the tire was made. For
example, 0717 means that the tire was
manufactured during week 7 of 2017. The
numbers in between are marketing codes
used at the manufacturer's discretion. This
information helps a tire manufacturer
identify a tire for safety recall purposes.
9. Tire Ply Composition and Material Used:
Indicates the number of plies indicates or
the number of layers of rubber-coated fab-
ric in the tire tread and sidewall. Tire man-
ufacturers also must indicate the ply
materials in the tire and the sidewall,
which include steel, nylon, polyester, and
others.
10. Maximum Load: Indicates the maximum
load in pounds and kilograms that can be
carried by the tire. Refer to the vehicle's
tire information placard located on the B-
Pillar for the correct tire pressure for your
vehicle.
11. Treadwear, Traction, and Temperature
grades.
12. Maximum permissible inflation
pressure: the greatest amount of air pres-
sure that should ever be put in the tire.
This limit is set by the tire manufacturer.
Speed Symbol
A tire's Speed Symbol (SS) indicates the maxi-
mum speed for which the tire has been certi-
fied and should be at least equivalent to the
vehicle's top speed.
Winter tires, with or without studs, are excep-
tions and may use a lower SS. When winter
tires are installed, the vehicle may not be
driven faster than the tires' SS.
The vehicle's speed should always be deter-
mined by the posted speed limit and traffic
and road conditions, not the tire's SS.
The following table indicates the maximum
permissible speed for each SS.
M
130 km/h (81 mph)
Q
160 km/h (100 mph)
T
190 km/h (118 mph)
WHEELS AND TIRES
H
210 km/h (130 mph)
V
240 km/h (149 mph)
W
270 km/h (168 mph)
Y
300 km/h (186 mph)
WARNING
The wheel and tire sizes for your Volvo
•
are specified to meet stringent stability
and handling requirements. Unap-
proved wheel/tire size combinations
can negatively affect your vehicle's sta-
bility and handling.
Any damage caused by installation of
•
unapproved wheel/tire size combina-
tions will not be covered by your new
vehicle warranty. Volvo assumes no
responsibility for death, injury, or
expenses that may result from such
installations.
Related information
Tires (p. 538)
•
543
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