Turning the key to MAR the warning light on the dial turns on, but it should go off as soon as the engine is started.
If the 
warning light turns on when
the car is travelling (on certain versions together with the message on the display),
stop the engine immediately and contact a Fiat Dealership.
See also:
Instrument Panel Features
1 — Side Vent
2 — Multifunction Lever – Light Control
3 — Instrument Cluster And Warning Lights
4 — Windshield Wiper, Washer, Trip Computer
5 — Central Air Vents
6 — Storage Compartment/Ra ...
Seat Belt Maintenance
Do not bleach, dye or clean the seat belts with chemical solvents or abrasive
cleaners. This will weaken the fabric.
Sun damage can also weaken the fabric.
If the seat belts need cleaning, use a m ...
“Dualdrive“ electric power steering engagement
When engaging the "Dualdrive electric power steering the instrument panel will
show the message CITY. This message will go off the display when disengaging the
electric power steering. ...