Tire Tread/belt problems of the 2002 Toyota Sequoia

The contact owns a 2002 Toyota Sequoia equipped with michelin tires, tire line: latitude tour, tire size: p265/70/r16, dot number: apj6001x1814. The contact stated he was informed at a state inspection that the vehicle had failed the inspection because there was a large crack in the tread of all four tires. The vehicle was taken to an independent mechanic, where it was diagnosed that the failure was related to NHTSA campaign number: 13t006000 (tires); however, the tire size was not included. The manufacturer was notified of the failure and informed the contact that the tires were not covered. The tires were replacement tires. The tires were not replaced. The tire failure mileage was approximately 33,000. The vehicle failure mileage was approximately 117,000.

Left rear tire tread separation on dunlop grand trek at 21265/70/r16 on Toyota Sequoia 2002, while traveling at 65 mph. I don't know exactly yet if the vehicle is total loss or if can be repaired because as consequence of tread separation the vehicle lost control and crashed into the concrete wall and is badly damage. My daughter and I were injured, but not too bad but. In addition the air bags did not come out after the impact. I am looking for some legal advise to see if dunlop company will honor my loss and Toyota company. I bought this SUV as "certified use vehicle" and the expiration date will be on 2008.

Was getting a front end alignment on my vehicle. Could not be completed. Garage reported 2 tires were separating and would need to be replaced. Previously had a blow-out 2 months ago on the same vehicle. Vehicle has less than 30k miles and is a 2002 Toyota Sequoia.