2008 Toyota Prius Owners Manual - Page 501

6-1. Specifications Summer tire or all season tire (→P. 383) An all season tire has "M+S" on the sidewall. A tire not marked "M+S" is a summer tire. Radial tires or bias-ply tires A radial tire has RADIAL on the sidewall. A tire not marked RADIAL is a bias-ply tire. TUBELESS or TUBE TYPE A tubeless tire does not have a tube 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. Load limit at maximum cold tire inflation pressure Maximum cold tire inflation pressure This means the pressure to which a tire may be inflated. (→P. 481) (→P. 481) Uniform tire quality grading For details, see "Uniform tire quality grading" that follows. "TEMPORARY USE ONLY" (→P. 439) A compact spare tire is identified by the phrase "TEMPORARY USE ONLY" molded into its sidewall. This tire is designed for temporary emergency use only. 476 PRIUS_U_(L/O_0802)