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:
Jacking the car
WITH THE JACK
See “If a tyre is punctured” in this section.
WITH A SHOP JACK
From the front
Jack up the car only by positioning the jack arm at the gearbox/differential
and placing a rubber ...
General considerations
Car maintenance
Have checks and adjustments carried out in accordance with the “Service schedule”.
Tyres
Check the pressure of the tyres routinely at an interval of no more than 4 weeks:
if the p ...
Operation
Each time the ignition key is turned to STOP, or PARK, the protection system
will automatically immobilise the engine.
When the key is turned to MAR to start the engine:
1) if the code is recognis ...