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:
18. Malfunction Indicator Light (MIL)
The Malfunction Indicator Light (MIL) is part of an onboard diagnostic system,
called OBDII, that monitors engine and automatic transmission control systems. The
light will illuminate when the k ...
Fuel level gauge
The needle shows the fuel present in the tank. When the fuel reserve warning
light A-fig. 35 - 36 comes on (on certain versions with the dedicated message on
the reconfigurable multifunction displ ...
Activation/deactivation (CITY function)
To connect/disconnect the CITY function, push the button located on the central
tunnel .
Activation of this function is indicated by the word CITY on the instrument panel
(see figures beside).
...