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:
General information
Turning on of warning light is accompanied by specific message and/or by buzzer
sound where provided by instrument panel. These indications are concise and cautionary
and shall not be considered a ...
Compact Spare Tire
The compact spare is for temporary emergency use with radial tires. It is engineered
to be used on your style vehicle only. Since this tire has limited tread life, the
original tire should be repa ...
Structure
Self-supporting chassis, three or five doors, high-resistance, multiple thickness
structural elements for progressive energy absorption in impacts.
Side bars in doors for side impact protection and ...