Anti-theft protection
Electronic engine immobiliser
The key contains an electronic chip which has a special code. When the ignition is switched on, this code must be recognised in order for starting to be possible.
This electronic engine immobiliser locks the engine management system a few minutes after the ignition is switched off and prevents starting of the engine by anyone who does not have the key.

In the event of a malfunction, you are informed by lighting of this warning lamp, an audible signal and a message on the multifunction screen.
In this case, your vehicle does not start; contact a CITROËN dealer as soon as possible.
See also:
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 ...
Keys
The key operates all the vehicle’s locks as well as the ignition.
Note: For safety reasons, a buzzer will sound if you have switched
off the ignition and opened the driver’s door without previous ...
Boot lighting
This comes on automatically when the
boot is opened and switches off automatically
when the boot is closed.
Different lighting times are available:
- when the ignition is off, approximately
ten ...






