The warning light on the dial comes on (on certain versions together with the message on the display) when dieel fuel filter sensor failure is detected. Contact Fiat Dealership as soon as possible to have the fault removed.
See also:
Sidelights and low beams
The warning light on the dial turns on when sidelights, parking lights or low
beams are turned on. ...
Engine
...
Turn Signals
Push the multifunction lever upward to signal a right turn or downward to signal
a left turn. The corresponding indicator in the instrument cluster will blink to
indicate the operation of the turn ...