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:
Protection from atmospheric agents
The main causes of corrosion are the following:
❒ atmospheric pollution;
❒ salty air and humidity (coastal areas, or hot humid climates);
❒ seasonal environment conditions.
No ...
Automatic Transmission – If Equipped
The Sport mode increases steering feedback to the driver with slight increase
in effort and changes the transmission shift schedules for more aggressive shifting.
This driving mode is useful while ...
Front Fog Lights — If Equipped
The fog light switch is located on the center stack of the instrument panel,
just below the radio.
Fog Light Switch
Press the switch once to turn the front fog lights on. Press the switch a sec ...