On May 7th, I was informed the cause of load roaring noise was due to the failure of 2 front wheel bearing. After the work was completed I was informed both rear wheel bearings would need to be replaced. Four wheel bearings failed simultaneously. Yes the car is parked at the dealership and available for inspection. How was your safety or the safety of others put at risk? Potential for Accidents: Wheel Disengagement: The Buick dealership technician confirmed four wheel bearing needed to be replaced at the same time. One bad bearing would allow me the driver to possibly control the car until it is safely out of traffic. Four failed wheel bearings could cause the driver to lose all control of the vehicle and or the wheels to disengage from the vehicle which has the potential for serious injury or death. A disengaged wheel could fly off and cause harm to other drivers or pedestrians, or the driver themselves could lose control and crash. Yes, the service department at the Buick dealer confirmed four wheel bearings failed on May 7th. Yes I received another inspection from an independent auto repair servicer. No the vehicle has routine maintenance and a state inspection without any warnings of the need for four new wheel bearings.