general problems of the 2019 GMC Sierra 1500

On March 14 2026 I was driving from [xxx] . To [xxx] to have my tires checked because I felt a strong vibration on my steering column and truck itself, it was getting worse so I took it to my mechanic who does my regular maintenance on truck. After inspecting tire ( [xxx] 55 r20) was called over and shown that my front passenger side tire had a flat spot, it looked deformed mechanic informed me that the tire had separated from radial. And I need to get another tire right away, since there was non in stock we did the next best thing we took the front passenger tire the affected tire put it in the back and put the rear good tire up front. The next day I was on my way to purchase the replacement tire when the tire blew out. I was on a heavily traffic road [xxx] . I managed to take control of truck doing about 40 mph at the time and drove it off the road to a safer spot to look at damage. Well the passenger rear tire witch was originally on the front that had the separated radial blew a chunk out of the inner sidewall. I put on the spare and went and replaced the tire with another goodyear new tire. On March 28 as I was coming home from [xxx] late at night the driver side rear tire blew as well again had to put on spare and next day took to local mechanics in [xxx] , and checked tire and again I was told that the tire separated from radial and that was the cause of blew out, they inspected all the tires at this point since this was the second tire from the same dot set with less then 12000 miles that had separated. Well they found a third tire that had aldo separated and had a flat spot on driver side front tire, now there are 3 tires from the same set, coincidence, I dont think so I replaced the second and third tire. One the third day April 1, 2026 the passenger side front tire blew as well, now I have 4 tires that had radial separation with less then 12000 miles and less then a year old, in a mater of a month. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2019 GMC Sierra 1500 equipped with nitto tires, tire line: ridge grapplers, tire size: 275/65/r18, dot number: (n/a). The contact stated that upon having the vehicle state inspected, the state inspector observed excessive dry rot to the tread of all four tires. The vehicle was taken to the dealer, who confirmed the state inspector's assessment however, the tires were not replaced. The manufacturer was notified of the failure but required the contact to cover the cost of replacing the tires. The failure mileage was 15,000.