Lexus GS430 User Manual page 579

DOT and Tire Identification Number (TIN)
63SA11a
"The illustration indicates typical DOT and Tire
Identification Number (TIN)
"DOT" symbol
1
Tire Identification Number (TIN)
2
Tire manufacturer's identification mark
3
Tire size code
4
Manufacturer's optional tire type code
5
(3 or 4 letters)
Manufacturing week
6
Manufacturing year
7
The "DOT" symbol certifies that the tire conforms to
applicable Federal Motor Vehicle Safety Standards.
Tire size
63ca01a
"The illustrations indicate typical tire sizes.
1 Tire use (P=Passenger car, T=Temporary use)
2 Section width (in millimeters)
Aspect ratio (tire height to section width)
3
Tire construction code
4
(R=Radial, D=Diagonal)
Wheel diameter (in inches)
5
Load index (2 digits or 3 digits)
6
Speed symbol (alphabet with one letter)
7
CHASSIS
555