Owner's Manual
Page 370
...A two-digit number that the tire's sidewall is 60 percent as high as the first character in inches. means a passenger vehicle tire engineered to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Tire and Rim Association. (B) Tire Width...tire size 370 The letter P as it is wide. (D) Construction Code: A letter code is for temporary use only. (G) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to standards set by the U.S. the letter D means diagonal or bias ply construction;...
...A two-digit number that the tire's sidewall is 60 percent as high as the first character in inches. means a passenger vehicle tire engineered to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Tire and Rim Association. (B) Tire Width...tire size 370 The letter P as it is wide. (D) Construction Code: A letter code is for temporary use only. (G) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to standards set by the U.S. the letter D means diagonal or bias ply construction;...