2009 Cadillac DTS Owners Manual PDF | Page 353

Tire Sidewall Labeling
Useful information about a tire is molded into its
sidewall.
(A) Tire Size
: The tire size is a combination of
letters and numbers used to de?ne 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
Speci?cation)
: Original equipment tires designed
to GM?s speci?c tire performance criteria have a
TPC speci?cation code molded onto the sidewall.
GM?s TPC speci?cations meet or exceed all federal
safety guidelines.
(C) 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.
(D) Tire Identi?cation Number (TIN)
: The letters
and numbers following the DOT code are the Tire
Identi?cation 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.
Passenger Car Tire Example
5-49

2009 Cadillac DTS Owners Manual Summary of Content

Tire Sidewall LabelingUseful information about a tire is molded into itssidewall.(A) Tire Size: The tire size is a combination ofletters and numbers used to dene a particulartires width, height, aspect ratio, construction typeand service description. See the Tire Sizeillustration later in this section for more detail.(B) TPC Spec (Tire Performance CriteriaSpecication): Original equipment tires designedto GMs specic tire performance criteria have aTPC specication code molded onto the sidewall.GMs TPC specications meet or exceed all federalsafety guidelines.(C) DOT (Department of Transportation):The Department of Transportation (DOT) codeindicates that the tire is in compliance with theU.S. Department of Transportation Motor VehicleSafety Standards.(D) Tire Identication Number (TIN): The lettersand numbers following the DOT code are the TireIdentication Number (TIN). The TIN shows themanufacturer and plant code, tire size, and date thetire was manufactured. The TIN is molded onto bothsides of the tire, although only one side may havethe date of manufacture.Passenger Car Tire Example5-49