Gmc 2007 Sierra User Manual download pdf (Page 546)

(A) Tire Size: The tire size code is a combination

of letters and numbers used to deﬁne a particular

tire’s width, height, aspect ratio, construction

type, and service description. See the “Tire Size”

illustration later in this section for more detail.

(B) 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.

(C) Dual Tire Maximum Load: Maximum load

that can be carried and the maximum pressure

needed to support that load when used in a dual

conﬁguration. For information on recommended

tire pressure see Inﬂation - Tire Pressure on

page 551 and Loading Your Vehicle on page 409.

(D) DOT (Department of Transportation): The

Department of Transportation (DOT) code

indicates that the tire is in compliance with the

U.S. Department of Transportation Motor Vehicle

Safety Standards.

(E) Tire Identiﬁcation Number (TIN): The letters

and numbers following DOT code are 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.

Light Truck (LT-Metric) Tire

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