Mazda MX-30 2022 Owner's Manual Leaflet page 508

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:
8-20
TREADWEAR 200 TRACTION AA
TEMPERATURE A
UTQGS MARK (example)