CITROËN C4 PICASSO Handbook page 56

Access
Locking the vehicle
Normal locking
F With the electronic key in the recognition
zone A, press with a finger or thumb
on one of the front door handles (at the
markings) to lock the vehicle or or press
the locking button on the right of the
tailgate.
Maintaining pressure allows the windows to be
raised to the desired position.
It is not possible to lock the vehicle if one of the
keys is left inside the vehicle.
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Ensure that nothing could prevent the
correct operation of the windows.
Be aware of children when operating
the windows.
The direction indicators come on for a
few seconds.
Depending on your version, the door
mirrors fold and the alarm is activated.