The contact owns a 2011 GMC Sierra equipped with Nitto tires, Tire line: N/A, Tire size: 285/55r20, DOT number: 73BM, and Nitto tire Tire line: Ridge Grappler Tire size: 285/55r20 and DOT number 73 BM The contact stated that while driving at an undisclosed speed the contact noticed the vehicle would vibrate. An independent was made aware of the failure and informed the contact that the tire failed due to the lump found on the front driver’s tire. The tire was replaced. The contact stated the failure recurred. The contact inspected the tire and the rear passenger tire also experienced the same failure. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 265, 000 and tire failure mileage was not included.