TL* THE CONTACT OWNS A 2007 HYUNDAI SONATA. THE CONTACT STATED WHILE SITTING IDLE AT A TRAFFIC STOP BEHIND A TRUCK, THERE WAS AN UNUSUAL INCREASE IN ENGINE RPMS. THE VEHICLE SUDDENLY ACCELERATED INTO THE REAR OF THE TRUCK. THE VEHICLE WAS TOWED TO THE DEALER YET THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE DEALER ALSO ADVISED THAT IF THE FAILURE WERE TO OCCUR AGAIN, THAT THE CONTACT SHOULD PUT THE VEHICLE INTO NEUTRAL TO STOP THE UNINTENDED ACCELERATION. THE FAILURE OCCURRED AGAIN AND THE CONTACT WAS ABLE TO STOP THE ACCELERATION BY FOLLOWING THE DEALER'S ADVICE. THE FAILURE MILEAGE WAS 2,000 AND THE CURRENT MILEAGE WAS 13,000.