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:
Hazard Warning Flashers
The Hazard Warning flasher switch is located on the instrument panel below the
radio.
Press the switch to turn on the Hazard Warning flashers. When the switch is activated,
all directional turn ...
Recommended Shift Speeds
To use your manual transmission for optimal fuel economy, it should be upshifted
as listed in the following table
...
Values Displayed
Range
This indicates the distance which may be travelled with the fuel remaining in
the tank, assuming that driving conditions will not change. The message “----” will
appear on the display in th ...