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:
To Unlock The Doors And Liftgate
Press and release the UNLOCK button on the RKE transmitter once to unlock the
driver’s door or twice, within five seconds, to unlock all doors and the liftgate.
The turn signal lights will flash to ...
Side doors
Check that it is safe to open a door before doing so.
Make sure that the left-hand sliding side door is completely closed before
refueling (see “At the filling station” in this chapter). You cou ...
Fuse location
The fuses of the car are grouped into two fuse boxes to be found respectively
on the dashboard and in the engine compartment.
Fuse box on the dashboard
Loosen the two screws (A) and open the cover ...