Toyota PRIUS 2014 Manual page 633

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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. 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.

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

The treadwear grade is a comparative rating based on the wear

rate of the tire when tested under controlled conditions on a speci-

fied government test course.

For example, a tire graded 150 would wear one and a half (1 - 1/2)

times as well on the government course as a tire graded 100.

The relative performance of tires depends upon the actual conditions

of their use. Performance may differ significantly from the norm due

to variations in driving habits, service practices and differences in

road characteristics and climate.

PRIUS PHV_OM_OM47856U_(U)

6-1. Specifications