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 Cover
The instrument panel cover has a low glare surface which minimizes reflections
on the windshield. Do not use protectants or other products which may cause undesirable
reflections. Use soap and war ...
Left-hand direction indicator
The warning light on the dial turns on when the direction indicator control lever
is moved downwards or, together with the right indicator, when the hazard warning
light button is pressed. ...
Rubber hoses
As far as the brake system and fuel rubber hoses are concerned, carefully follow
the “Service schedule” in this section.
Indeed ozone, high temperatures and prolonged lack of fluid in the system ma ...