The contact owns a 2021 Toyota Corolla equipped with Yokohama Tires, Tire Line: Blue Earth, Tire Size: 205/55/R16, DOT Number: FD8K-LL012. The contact stated that while driving approximately 65 MPH, the vehicle started to shake and vibrate abnormally. The contact stated that after stopping to inspect the vehicle, the contact discovered that the rear passengeras side tire had experienced a sidewall blowout and tread separation. The cause of the failure was not yet determined. The local Toyota dealer was notified of the failure. The tire manufacturer was not contacted. The failure mileage was 53,253.