Tire Bulge problems of the 1998 Jeep Grand Cherokee

Tl-the contact owns a 1998 Jeep Grand Cherokee equipped with master craft, tire line: glacier grip ii and tire size: 235/75/r15 and dot number: u91tfn74013. The contact stated that while in park, the contact noticed bulges along the side wall of the ires on the front and rear passenger's side of the vehicle. The vehicle was taken to a tire dealer who confirmed the failure and diagnosed that the tires needed to be replaced. The tires were replaced. However, the contact noticed that the driver's side rear tire had started develop bulges along the side wall. The manufacturer was notified of the failure. The vehicle failure mileage was 175,000 and the tire failure mileage was 2,000. Oo.