Owner's Manual
Page 281
...the illustration, it is wide. (D) Construction Code: A letter code is for temporary use only. (G) Tire Performance Criteria Specification (TPC Spec): Original equipment tires designed to standards set by the U. GM's TPC specifications meet or exceed all federal safety guidelines. (A) P-Metric...and Rim Association. (B) Tire Width: The three-digit number indicates the tire section width in the tire size means a passenger vehicle tire engineered to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. The load index can range ...
...the illustration, it is wide. (D) Construction Code: A letter code is for temporary use only. (G) Tire Performance Criteria Specification (TPC Spec): Original equipment tires designed to standards set by the U. GM's TPC specifications meet or exceed all federal safety guidelines. (A) P-Metric...and Rim Association. (B) Tire Width: The three-digit number indicates the tire section width in the tire size means a passenger vehicle tire engineered to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. The load index can range ...