Tire Sidewall problems of the 2006 Chevrolet Silverado

The contact owns a 2006 Chevrolet Silverado crew cab with firestone destination le tires, line size p245/70 r17. The contact was traveling 70 mph when the sidewall blew on the rear driver side tire. The tires were labeled as having a lifespan up to 60,000 miles but the failure occurred at 16,000 miles. The manufacturer was contacted and advised that they had never seen the failure in the manner in which it occurred. There were no repairs. The dot number and VIN were not available. The vehicle failure mileage was 44,085.