Toyota Yaris Sedan 2008 Quick Reference Manual page 352

Radial tires or bias-ply tires
A radial tire has RADIAL on the sidewall. A tire not marked RADIAL
is a bias-ply tire.
Typical DOT and tire identification number (TIN)
6-1. Specifications
*
DOT symbol
Tire Identification
(TIN)
Tire manufacturer's identifica-
tion mark
Tire size code
Manufacturer's optional tire
type code (3 or 4 letters)
Manufacturing week
Manufacturing year
*
:The DOT symbol certifies that
the tire conforms to applicable
Federal Motor Vehicle Safety
Standards.
Number
6
341