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:
Headlights
ADJUSTING THE HEADLIGHT BEAM
The correct positioning of the headlight beams is very important for the comfort
and safety, not only of the person driving the vehicle but also all other road users.
...
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Do not attempt to change a tire on the side of the vehicle close to moving
traffic, pull far enough off the r ...
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 ...