WHILE STOPPED IN LINE AT A FAST FOOD DRIVE THRU LINE THE BRAKES RELEASED ALLOWING TRUCK TO IDLE INTO CAR AHEAD SLIGHTLY DAMAGING BOTH VEHICLES. NO AMOUNT OF PRESSURE ON THE BRAKE PEDAL HAD ANY AFFECT ON STOPPING. DEALER COULD NOT DUPLICATE PROBLEM AND SCAN SHOWS NO CODES EXCEPT THE FRONT PARK SENSORS MOST LIKELY DAMAGED IN THE CONTACT. RAM STATED IF THEY CAN'T DUPLICATE ISSUE THEY ARE OF NO ASSISTANCE