VEHICLE SHUT DOWN COMPLETELY WHILE DRIVING ON THE HIGHWAY. THE ERROR MESSAGE "THE VEHICLE HAS SHUT DOWN" APPEAREDIN ON THE DASHBOARD. HAD THERE BEEN A TRANSPORT TRAILER BEHIND US, WE COULD HAVE BEEN KILLED. FORD CUSTOMER SERVICE IS DOING NOTHING FOR US. VERY DISAPPOINTING AS MY MOTHER NOW HAS TO DRIVE A VEHICLE THAT SHE IS AFRAID TO DRIVE. THIS CAR IS UNSAFE!