See also:

Emergency control
System which locks or unlocks the doors mechanically in the event of a malfunction of the battery or of the central locking. Locking the driver's door Insert the key in the lock, then turn it to ...

Doors
Locking the doors from the inside With the doors closed, press button B once to operate the electric central locking and unlocking. The doors can still be opened from inside. The central lockin ...

Comfort & convenient technology
The new Citroën C4 is designed for business-class travel with intuitive, intelligent technology enabling owners to tailor the new C4's environment and ambience to their own preferences. For e ...