2014 Buick LaCrosse Speed Control & Cruise Problems

I WAS STOPPED AT A RED LIGHT WHEN MY VEHICLE ACCELERATED FORWARD AND I WAS ALMOST HIT BY SEVERAL CARS ACROSS THE INTERSECTION. I STEPPED HARDER ON THE BRAKE AND MANAGED TO STOP MY VEHICLE ALTHOUGH THE ENGINE WAS REVVING VERY HIGH. I MANAGED TO FIND AN OPENING IN TRAFFIC AND PULLED OVER. I TURNED THE CAR OFF AND RESTARTED IT. THE RPM'S WERE EVEN HIGHER NOW(OVER 5000). I IMMEDIATELY TURNED IT BACK OFF AND CALLED THE DEALERSHIP. I WAS TOLD IT WAS UNSAFE TO DRIVE AND TO HAVE IT TOWED TO THE DEALERSHIP. I HAD IT TOWED AND WAS JUST INFORMED BY THE SERVICE MANAGER AT THE DEALERSHIP THAT THERE IS NO RECALL FOR THIS ISSUE ( WHICH IS AN ACCELERATOR SENSOR). I THINK THIS COULD HAVE BEEN VERY SERIOUS. I AM EVEN MORE OUTRAGED BECAUSE OF THE FACT THAT MY DAUGHTER WAS IN THE CAR WITH ME. I HOPE YOU CAN YOU CAN PLEASE LOOK INTO THIS MATTER BEFORE THERE ARE ANY FATALITIES SOMEWHERE BECAUSE OF BUICK'S NEGLIGENCE( I HAVE REPORTED THIS OCCURRENCE TO BUICK SUPPORT).

TL* THE CONTACT OWNS A 2014 BUICK LACROSSE. WHILE APPROACHING A STOP SIGN AT 20 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT THE VEHICLE INDEPENDENTLY ACCELERATED TO APPROXIMATELY 45 MPH WITHOUT WARNING. THE CONTACT WAS ABLE TO DEPRESS THE BRAKE PEDAL IN ORDER TO STOP THE VEHICLE. THE CONTACT STATED THAT THE FAILURE WAS EXPERIENCED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO BETTEN BAKER BUICK (2901 28TH STREET, GRANDVILLE, MICHIGAN 49418, (616) 530-9191) WHERE A DIAGNOSTIC TEST WAS PERFORMED, BUT WAS UNABLE TO LOCATE A FAILURE CODE. HOWEVER, THE DEALER FOUND THAT THE THROTTLE BODY WAS STICKING ALONG WITH CARBON BUILD UP. THE THROTTLE BODY AND SENSOR WERE REPLACED. THE MANUFACTURER WAS NOTIFIED AND PROVIDED THE CONTACT WITH CASE NUMBER: 84363184708. THE FAILURE MILEAGE WAS 46,017.