Turning the ignition key to MAR the warning light on the dial turns on, but it should go off after few seconds. The warning light stays on glowing steadily (on certain versions together with the message on the display) if there is a failure in the air bag system.
WARNING
If the 
warning light does not turn
on when turning the ignition key to MAR or if it stays on when travelling, this
could indicate a failure in safety retaining systems; under this condition air bags
or pretensioners could not trigger in the event of collision or, in a restricted
number of cases, they could trigger accidentally. Stop the car and contact Fiat
Dealership to have the system checked immediately.
WARNING
The failure of the 
warning light
(warning light off) is also indicated by the flashing for more than the normal seconds
of the passenger’s front air bag deactivated warning light
.
See also:
Hill Start Assist (HSA)
The HSA system is designed to assist the driver when starting a vehicle from
a stop on a hill. HSA will maintain the level of brake pressure the driver applied
for a short period of time after the ...
11. Seat Belt Reminder Light
When the ignition switch is first turned to ON/ RUN, this light will turn on
if the driver’s seat belt is unbuckled, a chime will sound. When driving, if the
driver’s seat belt remains unbuckled ...
Low engine oil pressure
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 ver ...