2007 Toyota Sienna Owners Manual - Page 404

07 SIENNA_U (L/O 0612) -DOT and Tire Identification Number (TIN) 6. Maximum cold tire inflation pressure- This means the pressure to which a tire may be inflated. For details about recommended cold tire inflation pressure, see "Tires" on page 517. 7. Tire ply composition and materials- Plies mean a layer of rubber−coated parallel cords. Cords mean the strands forming the plies in the tire. 8. "TUBELESS" or "TUBE TYPE"- A tubeless tire does not have a tube inside the tire and air is directly filled in the tire. A tube type tire has a tube inside the tire and the tube maintains the air pressure. 9. Radial tire or bias−ply tires- A radial tire has "RADIAL" on the sidewall. A tire not marked with "RADIAL" is a bias−ply tire. The "DOT" symbol certifies that the tire conforms to applicable Federal Motor Vehicle Safety Standards. 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 (3 or 4 letters) 6. Manufacturing week 7. Manufacturing year 404 2007 SIENNA from Oct. '06 Prod. (OM45437U)