Toyota Scion iQ EV Owner's Manual page 403

Radial tires or bias-ply tires
9
A radial tire has "RADIAL" on the sidewall. A tire not marked "RADIAL"
is a bias-ply tire.
Summer tires or all season tires
10
An all season tire has "M+S" on the sidewall. A tire not marked "M+S"
is a summer tire.
Typical DOT and Tire Identification Number (TIN)
*
DOT symbol
1
Tire Identification Number (TIN)
2
Tire manufacturer's identifica-
3
tion mark
Tire size code
4
Manufacturer's
5
type code (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.
optional tire
9-1. Specifications
(P. 288)
403
9