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:
Weights
(*) If special equipment is fitted (sunroof, tow hitch, etc.) the unladen car
weight increases, thus reducing the specified payload.
(**) Loads not to be exceeded. The driver is responsible for a ...
Main beam headlights
To change the halogen bulb, proceed as follows:
1) Remove the protection cover Cfig.
18 turning it counterclockwise;
2) Release clip A-fig. 19, remove connector B and remove the bulb C.
...
How to start diesel versions
1) Ensure that the handbrake is up.
2) Put the gear lever into neutral.
3) Turn the ignition key to MAR. Instrument panel warning lightswill
come on.
4) Wait for warning lights
to turn off.
5 ...