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NHTSA-reported issues for toyo proxes ST II
Top issue category: Tires (General)
Most reported: Tires (General) (5) · Tread / Belt (2) · Sidewall (1)
What owners described
Cracking or dry rot appears in 38% of these reports; about 4.0× as often as across all tire complaints. Percentages are shares of the 8 reports filed against the Toyo Proxes ST II across every vehicle it was fitted to that include a written account; a single report can describe more than one problem, so they do not total 100%.
| Reported problem | This subject | All tire complaints | Relative |
|---|---|---|---|
| Cracking or dry rot | 38% | 9% | 4.0× |
| Blowout or sudden deflation | 25% | 20% | 1.2× |
| Sidewall failure | 25% | 15% | 1.7× |
| Loss of control, rollover or collision | 25% | 8% | 3.0× |
| Premature or uneven wear | 25% | 1% | 19.2× |
Mileage at failure
5 of these reports state an odometer reading. The middle report is at 18,000 miles, with 8 in 10 falling between 1,700 and 180,000 miles.
In owners' own words
Verbatim excerpts from complaints filed with NHTSA about Toyo Proxes ST II. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.
I WAS TRAVELING SOUTH ON I95 ABOUT A MILE FORM EXIT 89 IN CT. I LOST THE TREAD OF THE REAR DRIVERS SIDE TIRE. FROM THE TIME I NOTICED THE ROAD FEELING A LITTLE ROUGH TO REALIZING THAT I HAD WHAT I THOUGHT WAS A BLOWOUT TOOK MAYBE 10-15 SECONDS. (ONCE I EXITED THE CAR I WAS SURPRISED THE ENTIRE TIRE HAD SEPARATED AT BOTH SIDEWALLS.) I FELT I WAS REAL LUCKY TO HAVE ESCAPED HAVING AN ACCIDENT OR INJURY AS WHEN THE TIRE CAME OFF I HAD LITTLE CONTROL OF THE CAR AS IT HEADED RIGHT TOWARD THE GUARDRAIL THEN BACK LEFT CROSSING THE INTO THE HIGH SPEED LANE BEFORE FINALLY COMING TO A STOP.
THE CONTACT OWNS A 2000 CHRYSLER 300M EQUIPPED WITH TOYO PROXES T1R TIRES (NA), SIZE: 245/45ZR16 94W (NA). THE CONTACT STATED THAT THE TREAD WAS SEPARATING FROM ALL FOUR TIRES AND THERE WERE CRACKS IN EACH TIRE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT TIRE STORE, BUT THE CAUSE OF THE FAILURES COULD NOT BE DETERMINED. THE TIRES WERE NOT REPLACED. THE VEHICLE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND ADVISED THE CONTACT TO TAKE THE TIRES TO A TIRE STORE. NO FURTHER ASSISTANCE WAS OFFERED. THE DOT NUMBER AND TIRE FAILURE MILEAGE WERE NOT PROVIDED. THE APPROXIMATE VEHICLE FAILURE MILEAGE WAS 180,000.
THE CONTACT OWNS A 2012 MAZDA, MAZDA5 WITH TOYO PROXES ST II TIRES, LINE SIZE P205/50R17. THE CONTACT STATED THAT WHILE HAVING THE VEHICLE INSPECTED, THE MECHANIC INFORMED THE CONTACT THAT ALL FOUR TIRES WERE CRACKED INSIDE. THE VEHICLE WAS TAKEN TO THE DEALER FOR NEW TIRES. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE ON THE TIRES AND VEHICLE WAS 22,400. THE DOT NUMBER WAS NOT AVAILABLE.
Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.
Specs
| Brand | Toyo |
|---|---|
| Model | Proxes ST II |
| Season | N/A |
| Type | N/A |
| UTQG treadwear | N/A |
| UTQG traction | N/A |
| UTQG temperature | N/A |
| Mileage warranty | N/A |
| Noise (dB) | N/A |
| Introduced | N/A |
Live prices
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Available sizes (0)
Size data being verified.
Toyo proxes ST II: what the numbers tell you
Manufacturer treadwear data for the Proxes ST II is not publicly listed. This is common for OEM-only or track-day tires that don't carry a US treadwear warranty. No mileage warranty is published for this tire, which is typical for performance summer and track-day rubber where the manufacturer doesn't make wear-life claims.
Cabin noise data for this tire is not published by the manufacturer. As a general tire built for the passenger segment, the Proxes ST II is positioned against direct rivals within the same category. Comparing it to a tire in a different category (e.g. summer vs all-season) makes the spec sheet misleading because the design targets are not the same.
The Toyo Proxes ST II has been part of Toyo's catalog since its introduction, and remains a current-production model.
For an apples-to-apples comparison against direct rivals, see the comparison pages linked from this tire's brand index.
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Last verified 2026-10-07.