Toyota Sienna 2010 Owner's Manual page 548

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
Vehicle Safety Standards.
Number
Motor
6
555