GMC 2013 GMC Yukon/Yukon XL, Руководство пользователя

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Black plate (47,1)
GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
Vehicle Care 10-47
a light truck tire engineered to
standards set by the U.S. Tire
and Rim Association.
(B) Tire Width
:
The three ‐ digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(C) Aspect Ratio
:
A two ‐ digit
number that indicates the tire
height
‐ to ‐ width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item C of the light truck (LT
‐
Metric) tire illustration, it would
mean that the tire's sidewall is
75 percent as high as it is wide.
(D) Construction Code
:
A
letter code is used to indicate
the type of ply construction in
the tire. 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.
(E) Rim Diameter
:
Diameter of
the wheel in inches.
(F) Load Range
:
Load Range.
(G) Service Description
:
The
service description indicates the
load index and speed rating of a
tire. If two numbers are given as
in the example, 120/116, then
this represents the load index for
single versus dual wheel usage
(single/dual). The speed rating is
the maximum speed a tire is
certified to carry a load.
Tire Terminology and
Definitions
Air Pressure
:
The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:
The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning.
Aspect Ratio
:
The relationship
of a tire's height to its width.
Belt
:
A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:
The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:
A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.