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:
Liftgate
To unlock the liftgate, use the Remote Keyless Entry (RKE) transmitter or activate
the power door lock switches located on the front door handles.
To open the liftgate, squeeze the liftgate release ...
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These mirrors are heated to melt frost or ice. This feature is activated whenever
you turn on the rear window defroster. Refer to “Rear Window Features” in “Understanding
The Features Of Your Ve ...
Onboard Diagnostic System – OBD II
Your vehicle is equipped with a sophisticated onboard diagnostic system called
OBD II. This system monitors the performance of the emissions, engine, and automatic
transmission control systems. Wh ...