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:
21. Electronic Stability Control OFF (ESC OFF)Indicator Light
This light indicates the Electronic Stability Control system (ESC) has been turned
off by the driver. ...
Operating Tips
Window Fogging
Windows will fog on the inside when the humidity inside the vehicle is high.
This often occurs in mild or cool temperatures when it’s rainy or humid. In most
cases, turning the air ...
Radio transmitters and cellular telephones
Radio transceiver equipment (e.g.: e-tacs mobile phones, HAM radio systems and
the like) shall not be used inside the vehicle unless a separate aerial is mounted
on the roof.
IMPORTANT The use of ...