2004 Lexus LS 430 User Guide - Page 499

CHASSIS DOT and Tire Identification Number (TIN) Tire size 63SA11a 63L022 "The illustration indicates typical DOT and Tire Identification Number (TIN) 1 "DOT" symbol 2 Tire Identification Number (TIN) 3 Tire manufacturer's identification mark 4 Tire size code 5 Manufacturer's optional tire type code 6 Manufacturing week 7 Manufacturing year The "DOT" symbol certifies that the tire conforms to applicable Federal Motor Vehicle Safety Standards. "The illustration indicates typical tire size. 1 Tire use (P=Passenger car, T=Temporary use) 2 Section width (in millimeters) 3 Aspect ratio (tire height to section width) 4 Tire construction code (R=Radial, D=Diagonal) 5 Wheel diameter (in inches) 6 Load index (2 digits or 3 digits) 7 Speed symbol (alphabet with one letter) 481