Uniform tire quality grading

Uniform tire quality grading - Technical and consumer information - Infiniti QX Owners Manual - Infiniti QX

DOT (Department Of Transportation) Quality Grades: All passenger car 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

See also:

Opening the fuel-filler door
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Driving on snow or ice
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Brake pad wear warning
The disc brake pads have audible wear warnings. When a brake pad requires replacement, it will make a high pitched scraping sound when the vehicle is in motion. This scraping sound will first ...