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:
2. Rear Defrost Button
Press and release this button to turn on the rear window defroster. This indicator
will illuminate when the rear window defroster is on. The rear window defroster
automatically turns off after 2 ...
Sentry Key
The Sentry Key Immobilizer System prevents unauthorized vehicle operation by
disabling the engine. The system does not need to be armed or activated. Operation
is automatic, regardless of whether ...
If an accident occurs
– It is important to keep calm.
– If you are not directly involved in the accident, stop at least ten meters
away from the accident.
– If you are on a motorway, do not obstruct the emergency lane ...