CITROËN C3 PICASSO 2012 Owner's Handbook Manual page 74

Access
Manual centralised control
System which provides full manual locking or
unlocking of the doors from the inside.
Locking
Press button A to lock the vehicle.
The red indicator lamp on the button comes on.
If one of the doors is open, central
locking from the inside does not take
place.
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Unlocking
Press button A again to unlock the vehicle.
The red indicator lamp on the button switches
off.
If the vehicle is locked from the outside,
the red indicator lamp flashes and
button A is inactive.
In this case, use the remote control
or the key to unlock the vehicle.
Automatic centralised
control
System which provides full automatic locking
or unlocking of the doors and the boot while
driving.
You can activate or deactivate this function.
Locking
When the speed exceeds 6 mph (10 km/h), the
doors and the boot lock automatically.
If one of the doors is open, the
automatic central locking does not take
place.
If the boot is open, the automatic central
locking of the doors is active.
Unlocking
Above 6 mph (10 km/h), press button A to
unlock the doors and the boot temporarily.