HANDBRAKE ON (red)
Turning the ignition key to MAR the warning light turns on, but it should go off after few seconds.
Low brake fluid level
The warning light turns on when the level of the brake fluid in the reservoir falls below the minimum level, due to possible leak in the circuit.
On certain versions the dedicated message is displayed.
If the warning light 
turns on
when traveling (on certain versions together with the message on the display) stop
the vehicle immediately and contact Fiat Dealership.
Handbrake on
The warning light turns on when the handbrake is on.
On certain versions, if the vehicle is moving the buzzer will also sound.
IMPORTANT If the warning light turns on when traveling, check that the handbrake is not engaged.
See also:
Power windows
CONTROLS
Power windows are controlled by two switches located on the dashboard when the
key is at MAR:
(A): to open/close the front left-hand window;
(B): to open/close the front right-hand win ...
Front sidelights
To change the bulb, remove the protective cover (1), remove connector (A) and
remove the bulb (B). ...
Anti-Lock Brake System (ABS)
This system aids the driver in maintaining vehicle control under adverse braking
conditions. The system controls hydraulic brake pressure to prevent wheel lockup
and help avoid skidding on slipper ...