Uniform Tire Quality Grading System (UTQGS) Ratings
The federal government requires tire manufacturers to grade their tires in the three areas of traction, temperature and treadwear, and place the information on the sidewall of the tire for consumers.
Traction grades are an indication of a tire's ability to stop on wet pavement. A higher graded tire should allow a car to stop on wet roads in a shorter distance than a tire with a lower grade. Traction is graded from highest to lowest as "AA", "A", "B", and "C".
Temperature grades are an indication of a tire's resistance to heat. Sustained high temperature (for example, driving long distances in hot weather), can cause a tire to deteriorate, leading to blowouts and tread separation. From highest to lowest, a tire's resistance to heat is graded as "A", "B", or "C".
Treadwear grades are an indication of a tire's relative wear rate. The higher the treadwear number is, the longer it should take for the tread to wear down. A control tire is assigned a grade of 100. Other tires are compared to the control tire. For example, a tire grade of 200 should wear twice as long as the control tire.
If tire labels could talk...
There's a ton of information on your tires that tells you about how they work with your vehicle to affect its performance. Understanding the tire labels for your passenger vehicle or light truck is important for maintaining and buying new tires. If tire labels could talk, here's what they'd say:
Recalls & Safety Issues.
This is a record of safety issues for tires of this brand and model.
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