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:
Transmission
CLUTCH
Hydraulic, self-adjusting external control.
GEARBOX
Five forward gears and reverse with synchromesh for front gear engagement.
Cyclical gear reduction and differential assembly incorporated ...
General instructions
Wheel changing and correct use of the jack and spacesaver spare wheel call for
some precautions as listed below.
IMPORTANT If the vehicle is fitted with “Fix & Go (quick tyre repair kit)”, see ...
Automatic Dimming Mirror — If Equipped
This mirror automatically adjusts for headlight glare from vehicles behind you.
You can turn the feature on or off by pressing the button at the base of the mirror.Alight
to the left of the button ...