Saturn 2009 ASTRA - Manual (Page 227)

(A) Tire Ply Material : The type
of cord and number of plies in the
sidewall and under the tread.
(B) Temporary Use Only :
The compact spare tire or
temporary use tire has a tread
life of approximately 3,000 miles
(5 000 km) and should not be
driven at speeds over 50 mph
(80 km/h). The compact spare
tire is for emergency use when a
regular road tire has lost air
and gone flat. If your vehicle
has a compact spare tire.
See Compact Spare Tire on
page 9-68 and If a Tire
Goes Flat on page 9-60.
(C) Tire Identification Number
(TIN)
: The letters and numbers
following the DOT (Department
of Transportation) code is
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.
(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 9-47.
(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.
(G) TPC Spec (Tire
Performance Criteria
Specification)
: Original
equipment tires designed to
GM’s specific tire performance
criteria have a TPC specification
code molded onto the sidewall.
GM’s TPC specifications meet
or exceed all federal safety
guidelines.
Compact Spare Tire Example
Vehicle Service and Care 9-43