Just been reading through the most current edition of the Fiesta Owners Manual valid for vehicles built from 12th January 2015 to 16th August 2015 and, under security, on page 41, it mentions a "Battery Back Up Sounder" which is an extra alarm system which has it's own battery.
Are all new Fiesta's built from 12th January 2015 fitted this 'extra alarm' system or, is it just certain models?
Battery Back-up Sounder
The battery back-up sounder is an extra
alarm system which will sound a siren
when the alarm is triggered. When you lock
your vehicle the system is armed. The
sounder has its own battery and will sound
an alarm siren even if someone
disconnects your vehicle battery or the
battery back-up sounder itself.