Toyota 2004 Prius Owner's Manual page 217

6. Radial tires or bias−ply tires—A
radial tire has "RADIAL" on the
sidewall. The tire not marked with
"RADIAL" is a bias−ply tire.
7. "TUBELESS" or "TUBE TYPE"
—A tubeless tire does not have a
tube inside the tire and air is direct-
ly filled in the tire. A tube type tire
has a tube inside the tire and the
tube maintains the air pressure.
8. Load limit at maximum cold tire
inflation pressure—For details,
see "Checking and replacing tires"
on page 291.
9. Maximum cold tire inflation
pressure—This means the pres-
sure to which a tire may be in-
flated. For recommended cold tire
inflation pressure, see "Tires" on
page 313.
10. Uniform tire quality grading—
For details, see "Uniform tire quali-
ty grading" that follows.
—DOT and Tire Identification
Number (TIN)
21A009a
This illustration indicates typical DOT
and Tire Identification Number (TIN).
1. "DOT" symbol
2. Tire Identification Number (TIN)
3. Tire manufacturer's identification
mark
4. Tire size code
5. Manufacturer's optional tire type
code
6. Manufacturing week
7. Manufacturing year
The "DOT" symbol certifies that the
tire conforms to applicable Federal
Motor Vehicle Safety Standards.
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