Owner's Manual
Page 280
... the tread. (F) Uniform Tire Quality Grading (UTQG): Tire manufacturers are the Tire Identification Number (TIN). See the "Tire Size" illustration later in compliance with the U.S. GM's TPC specifications meet or exceed all federal safety guidelines. (C) DOT (Department of... Transportation): The Department of Transportation Motor Vehicle Safety Standards. (D) Tire Identification Number (TIN): The letters and numbers following DOT code are required to define...
... the tread. (F) Uniform Tire Quality Grading (UTQG): Tire manufacturers are the Tire Identification Number (TIN). See the "Tire Size" illustration later in compliance with the U.S. GM's TPC specifications meet or exceed all federal safety guidelines. (C) DOT (Department of... Transportation): The Department of Transportation Motor Vehicle Safety Standards. (D) Tire Identification Number (TIN): The letters and numbers following DOT code are required to define...