EXPERIENCED COMPLETE ALTERNATOR FAILURE WHILE DRIVING VEHICLE. NO PRIOR WARNING OF ALTERNATOR PROBLEMS. AFTER FAILURE OF ALTERNATOR VEHICLE WENT INTO POWER SAVE MODE WHILE DRIVING DISABLING THE ABS, ESC, ECM, AND CBC OF THE VEHICLE. IT ALSO CAUSED AN UNDERHOOD ELECTRICAL FIRE IN WHICH EMS AND THE FD HAD TO BE CALLED. *TR