Get Customer Information and Reporting Safety Defects -> Uniform Tire Quality Grading System Guide for Mazda Cx-5 SUV 2023

Customer Information and Reporting Safety Defects

Uniform Tire Quality Grading System (UTQGS)

This information relates to the tire grading system developed by the U.S. National Highway

Traffic Safety Administration for grading tires by tread wear, traction, and temperature

performance.

Tread Wear

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The tread wear grade is a comparative rating based on the wear rate of the tire when tested

under controlled conditions on a specified government test course.

For example, a tire graded 150 would wear one-and-a-half 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, however,

and may depart significantly from the norm because of variations in driving habits, service

practices and differences in road characteristics and climate.

Traction-AA, A, B, C

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The traction grades, from highest to lowest, are AA, A, B, and C. These grades represent the

tire's ability to stop on wet pavement as measured under controlled conditions on specified

government test surfaces of asphalt and concrete. A tire marked C may have poor traction

performance.

WARNING

The traction grade assigned to this tire is based on braking (straight ahead) traction tests and

does not include acceleration cornering (turning), hydroplaning, or peak traction

characteristics.

Temperature-A, B, C

▼

The temperature grades A (the highest), B, and C, represent the tire's resistance to the

generation of heat and its ability to dissipate heat when tested under controlled conditions

on a specified indoor laboratory test wheel.

Sustained high temperature can cause the material of the tire to degenerate and reduce tire

life, and excessive temperatures can lead to sudden tire failure.

Grade C corresponds to a level of performance which all passenger vehicle tires must meet

under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher

levels of performance on the laboratory test wheel than the minimum required by law.

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Customer Information and Reporting Safety Defects

Uniform Tire Quality Grading System (UTQGS)

WARNING

Keep your vehicle's tires properly inﬂated and not overloaded:

Driving with improperly inﬂated or overloaded tires is dangerous. Excessive speed,

underinﬂation, or excessive loading, either separately or in combination, can cause heat

buildup and possible tire failure. The temperature grade for this tire is established for a tire

that is properly inﬂated and not overloaded.

These grades will be added to the sidewalls of passenger vehicle tires over the next several

years according to a schedule established by the NHTSA and the tire manufacturers.

The grade of tires available as standard or optional equipment on Mazda vehicles may vary

with respect to grade.

ALL PASSENGER VEHICLE TIRES MUST CONFORM TO THESE GRADES AND TO

ALL OTHER FEDERAL TIRE-SAFETY REQUIREMENTS.

UNIFORM TIRE QUALITY GRADING

▼

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

UTQGS MARK (example)

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Customer Information and Reporting Safety Defects -> Uniform Tire Quality Grading System for Your Mazda Cx-5 SUV 2023

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