Tl* the contact owns a 2013 lexus es350. the contact stated that while driving 5 mph, the vehicle suddenly accelerated and the brakes failed to immediately stop the vehicle. the vehicle was taken to the dealer however, the technician was unable to diagnosed the failure. the manufacturer was made aware of the failure. the vehicle was not repaired. the vin was not available. the failure and current mileage was 6,000. the consumer stated she and her husband leased the vehicle. however, after the sudden acceleration incident, they broke the lease and returned the vehicle. updated 05/08/14