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:
If an interior light burns out
Modifications or repairs to the electrical system carried out incorrectly
and without bearing the features of the system in mind can cause malfunctions with
the risk of fire.
See “If a bulb burn ...
Electronic Vehicle Information Center (EVIC)Setup Menu
The menu comprises a series of functions arranged in a cycle. Press the + and
– buttons to access the different options and settings (setup).
The setup menu can be activated by pressing the MENU ES ...
“Dualdrive” electric power steering system
The electric power steering only works when the ignition key is at MAR and the
engine is running. A new electrically controlled power steering system called “Dualdrive”
is fitted on the Fiat Pun ...