TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. THE CONTACT STATED AFTER PARKING ON A BOAT RAMP AND EXITING THE VEHICLE, THE NOTICED THAT THE VEHICLE HAD STARTED TO ROLLAWAY. THE CONTACT STATED HE JUMPED BACK INTO THE VEHICLE AND DEPRESSED THE BRAKE PEDAL BUT THE VEHICLE ROLLED INTO A TREE. THE CONTACT STATED THAT THE HAD TO BE TOWED UP THE INCLINE TO THE ROADWAY. THE CONTACT MENTIONED THAT THE FAILURE HAD OCCURRED TWICE AS THE VEHICLE WAS PLACED IN PARK BUT ROLLED AWAY. THE VEHICLE WAS TAKEN TO THE DEALER BOUCHER CHEVROLET (1907 E MORELAND BLVD, WAUKESHA, WI 53186) THE DEALER COULD NOT DUPLICATE THE FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A COMPLAINT NUMBER: 8-4691104286 WAS FILED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 70,000. THE VIN WAS NOT AVAILABLE.