Toyota Sienna 2010-2026 Owners Manual: Typical tire symbols

• Run-flat tire or full-size tire

• Compact spare tire

1. Tire size
2. DOT and Tire Identification Number (TIN)
3. Uniform tire quality grading For details, see “Uniform Tire Quality Grading” that follows.
4. Location of treadwear indicators
5. Run-flat tire (RFT) or standard tire This vehicle can be equipped with either run-flat tires (RFT) or standard tires. A “RFT” or “DSST” mark is molded on the sidewall of the run-flat tire.
6. Tire ply composition and materials Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies in a tire.
7. Radial tires or bias-ply tires A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.
8. TUBELESS or TUBE TYPE A tubeless tire does not have a tube and air is directly put into the tire.

   A tube type tire has a tube inside the tire and the tube maintains the air pressure.

9. Load limit at maximum cold tire inflation pressure
10. Maximum cold tire inflation pressure This means the pressure to which a tire may be inflated.
11. Summer tires or all season tires An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer tire.
12. “TEMPORARY USE ONLY” A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded on its sidewall. This tire is designed for temporary emergency use only.