Pontiac G3 2010, Owner'S Manual

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(B) Tire Ply Material
:
The type of cord and
number of plies in the sidewall and under the
tread.
(C) Tire Identification Number (TIN)
:
The Tire
Identification Number (TIN). The TIN shows the
manufacturer and plant code, tire size, and date
the tire was manufactured. The TIN is molded
onto both sides of the tire, although only one side
may have the date of manufacture.
(D) Maximum Cold Inflation Load Limit
:
Maximum load that can be carried and the
maximum pressure needed to support that load.
See
Compact Spare Tire on page 6 ‑ 78 and
Loading the Vehicle on page 5 ‑ 14 .
(E) Tire Inflation
:
The temporary use tire or
compact spare tire should be inflated to 60 psi
(420 kPa). For more information on tire pressure
and inflation see
Inflation - Tire Pressure on
page 6 ‑ 57 .
(F) Tire Size
:
A combination of letters and
numbers define a tire's width, height, aspect ratio,
construction type and service description. The
letter T as the first character in the tire size means
the tire is for temporary use only.
Tire Size
The following illustration shows an example of a
typical passenger car tire size.
(A) Passenger (P ‐ Metric) Tire
:
The United
States version of a metric tire sizing system. The
letter P as the first character in the tire size means
a passenger vehicle 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 70, as
shown in item C of the illustration, it would mean
that the tire's sidewall is 70% as high as it is wide.
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