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:
Refuelling
To guarantee full tank filling, carry out two refueling operations after the
first click of the fuel delivery gun.
Avoid further topping up operations that could cause damages to the fuel system.
...
Older Children And Child Restraints
Children who are two years old or who have outgrown their rear-facing convertible
child seat can ride forwardfacing in the vehicle. Forward-facing child seats and
convertible child seats used in t ...
Protecting the environment
The devices for curtailing petrol engine emissions are the following:
❒ three-way catalytic converter;
❒ Lambda sensor;
❒ fuel evaporation system.
In addition, do not let the ...