What does 1 hour mode mean on Ford Fiesta?
If your Head Unit is showing one hour mode with the ignition on then you have definitely lost the 12v feed to the ignition, this you will find is controlled via fuse number 69 – 7.5 amp. The radio should only show 1 hour mode when there is no key in the ignition and you power the unit on.
How do you reset the radio on a 2009 Ford Fiesta?
Make sure the radio and ignition is switched off. Disconnect the car battery for 4 minutes. Connect the battery again and turn on ignition and then turn on the radio.