Tire Tread/belt problems of the 2005 Dodge Ram 1500

The contact owns a 2005 Dodge Ram 1500 equipped with nitto terra grappler tires, size: 285/70r17 116-t. While driving approximately 30 mph, the tread separated from the rear passenger side tire prematurely. The contact was able to coast the vehicle over to the side of the road. The contact applied a spare tire to the rear passenger side tire area. The vehicle was parked at the contact's residence due to the failure. The manufacturer was notified of the failure. The contact was waiting to determine if the manufacturer would investigate to determine how the tire separation occurred. The VIN was not provided. The vehicle and tire failure mileages were not available.