WHEN COMING TO A STOP AT A RED LIGHT, THE CAR CONTINUED TO ROLL FORWARD. AT THIS TIME, I STEPPED ON THE BRAKE WITH ADDED PRESSURE BUT THE CAR CONTINUED TO ROLL. THEN I SHIFTED THE CAR INTO PARK BUT THAT DID NOT STOP THE VEHICLE AND IT ROLLED INTO A TRUCK IN FRONT AT LESS THAN 5 MPH. THE DEALERSHIP STATES THEY CANNOT DUPLICATE THE INCIDENT AND FOUND NO ERRORS WHILE CONDUCTING THEIR INSPECTIONS.