Lexus SC 430 2004 Manual page 354

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
Manufacturing week
6
Manufacturing year
7
The "DOT" symbol certifies that the tire conforms to
applicable Federal Motor Vehicle Safety Standards.
Tire size
63sa12a
" The illustration indicates typical tire size.
Section width (in millimeters)
1
Aspect ratio (tire height to section width)
2
Speed category (alphabet with one letter)
3
Tire construction code
4
(R=Radial, D=Diagonal)
Wheel diameter (in inch)
5
Load index (2 digits or 3 digits)
6
Speed symbol (alphabet with one letter)
7
CHASSIS
335