TL*THE CONTACT OWNS A 2009 TOYOTA YARIS. THE VEHICLE HAS EXPERIENCED NUMEROUS UNEXPECTED ACCELERATION FAILURES. THE VEHICLE HAS ALSO EXCEEDED 90 MPH WHEN THE FAILURE OCCURRED. TOYOTA TOLD THE CONTACT THAT THERE WERE NO PROBLEMS WITH THE VEHICLE; HOWEVER, THE FAILURE OCCURRED EVERY TIME SHE DROVE IT. THE CONTACT HAS RECEIVED SEVERAL TICKETS BECAUSE OF THE ACCELERATION. THE VEHICLE BEGAN SHAKING PRIOR TO IT ACCELERATING. THE FAILURE MILEAGE WAS 100. THE CURRENT MILEAGE WAS 18000.