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:
Fluids and lubricants
RECOMMENDED PRODUCTS AND THEIR SPECIFICATIONS
For diesel engines, in emergency cases where genuine products are not available,
lubricants with min. performance ACEA C2 are accepted. If this is th ...
Advanced Front Air Bag Features
The Advanced Front Air Bag system provides output appropriate to the severity
and type of collision as determined by the Occupant Restraint Controller (ORC),
which may receive information from the ...
Failure warnings
In case of parking sensor failure, the driver is warned when engaging reverse
by high sound warning (for 3 seconds). ...