TL*THE CONTACT OWNS A 2008 LEXUS RX350. WHILE DRIVING 50 MPH, THE VEHICLE BEGAN DRAGGING AND WOULD NOT ACCELERATE OVER 50 MPH. THE VEHICLE WAS PULLED OVER AND SMOKE WAS COMING FROM THE WHEEL ASSEMBLY. THE BRAKES LOCKED. THE VEHICLE WAS RESTARTED AND DROVE NORMALLY FOR 5 MILES. THE DEALER WAS UNABLE TO DUPLICATE OR DETERMINE THE CAUSE OF THE FAILURE. THE FAILURE MILEAGE WAS 9,000 AND CURRENT MILEAGE WAS 13,000.