The warning light on the dial turns on (on certain versions together with the message on the display) when one or more doors, the boot (indication fitted on some versions only) or the bonnet are not properly shut.
Symbols 
shown on the multifunction
display indicate incomplete left/right door closing.
With doors and boot open, if 4 km/h speed is exceeded the buzzer will sound (only for versions with reconfigurable multifunction display).
IMPORTANT On versions not fitted with electric door lock, no warning message will be displayed if door is not perfectly closed or is left open.
See also:
Parking Lights
To turn on the parking lights, remove the key or turn the ignition to OFF/LOCK
position and turn on the headlights. ...
Fiat 500 Owners Manual
h1 {color: red;}
h2 {color: green;}
h3 {color: blue;}
h4 {color: #FF00FF;}
...
Cleaning Headlights
Your vehicle has plastic headlights that are lighter and less susceptible to
stone breakage than glass headlights.
Plastic is not as scratch resistant as glass and, therefore, different lens cleani ...