2009 Toyota Corolla Owners Manual - Page 351

6-1. Specifications Tire section names Bead Sidewall Shoulder Tread Belt Inner liner Reinforcing rubber Carcass Rim lines Bead wires Chafer Uniform Tire Quality Grading This information has been prepared in accordance with regulations issued by the National Highway Traffic Safety Administration of the U.S.A. Department of Transportation. It provides the purchasers and/or prospective purchasers of Toyota vehicles with information on uniform tire quality grading. Your Toyota dealer will help answer any questions you may have as you read this information. 6 n DOT quality grades All passenger vehicle tires must conform to Federal Safety Requirements in addition to these grades. Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A Vehicle specifications 435