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 turns on when the handbrake is on.
IMPORTANT If the warning light 
turns
on when travelling, check that the handbrake is not engaged.
With handbrake engaged, if 4 km/h speed is exceeded the buzzer will sound (only for versions with reconfigurable multifunction display).
WARNING
If the warning light 
turns on when
travelling (on certain versions together with the message on the display) stop the
car immediately and contact Fiat Dealership.
See also:
Supplemental Driver Side Knee Air Bag InflatorUnit
The Supplemental Driver Side Knee Air Bag unit is located in the instrument panel
trim beneath the steering column. When the ORC detects a collision requiring the
air bag, it signals the inflator ...
Low battery charge
Turning the key to MAR the warning light on the dial turns on, but it should
go out as soon as the engine is started (with the engine running at idle speed a
brief delay in going out is allowed) ...
To Activate
Push the ON/OFF button. The Cruise Indicator light in the instrument cluster
will illuminate. To turn the system off, push the ON/OFF button a second time. The
Cruise Indicator light will turn off ...