ON THREE DIFFERENT OCCASIONS, THE TIPM HAS FAILED ON THIS TRUCK. THE FIRST TIME THE VEHICLE WAS UNDER WARRANTY. SECOND ONE HAPPENED IN 2013. THE THIRD TIME IN DEC OF 2015. ALL THREE TIMES THE MOTOR QUIT IN HEAVY TRAFFIC AND THE DASHBOARD WENT OFF. THE TIPM BOX THEN STARTED SMOKING. I DISCONNECTED THE BATTERY CABLES. ON THE THIRD OCCASION, I WAS DELAYED BY HEAVY TRAFFIC IN GETTING TO THE BATTERY CABLES. THE TRUCK WAS ON A STEEP GRADE. THE HORN STARTED HONKING, WIPERS AND WINDSHIELD SPRAYER ACTIVATED, AND THEN THE VEHICLE TRIED TO START ITSELF AND MOVE FORWARD. IF I HAD BEEN UNDER THE HOOD, I WOULD HAVE BEEN RUN OVER. ALSO, THIS TRUCK WAS PULLING A TRAILER ON A MOUNTAIN PASS WITH NO POWER STEERING, BRAKES, OR TRAILER BRAKES DUE TO THIS PROBLEM AND MADE THIS EXTREMELY DANGEROUS.