Friday, all OK drove as usual. Sat - only "malfunction indicator lamp" on, nothing else. Will not start. Jumped - no result. Sun, tried again, all dash lights went on momentarily then all dark - nothing. Of course no dealerships open over weekend. Stranded in location 25 mi from any dealership. Does this mean battery replacement? Is this the $3000 version warned of? Help please? Love my 2007 Prius w/46,00 mi.