Hi,
I seem to be having the same problems as the Original Poster in my wife's 2016 Fiat 500 1.2.
When putting the key in the ignition and turning it, all of the warning lights on the dash flash and then I get an array of messages on the information display on the speedo such as 'ABS not available', 'Tyre pressure not available', 'Power Steering not available' etc. This is accompanied by a clicking sound from what appears to be the fuse box.
The car does not have Stop/Start (or if it does it is disabled) and didn't show any problems until this happened this morning. I have now put the battery on a charge to see if this helps. Or do I need a new battery straight away? Given that the car is only 3 years old that seems like a short lifespan for a battery?
Appreciate any feedback that you may have.
Cheers