Frequently-asked questions

Citroen C4 / Citroen C4 Owner's Manual / Audio / Frequently-asked questions

The table below provides answers to the questions that are asked the most frequently.

 

 

 

 

 

 

 

    See also:

    RADIO - RDS - CD
    ...

    Exterior perimiter protection
    The system detects opening of the vehicle. The alarm is triggered if anyone tries to enter the vehicle by forcing a door, the boot or the bonnet. ...

    Lighting rheostat
    System for manual adjustment of the brightness of the instruments and controls in relation to the exterior brightness. Activation When the lighting is on: press the button to change the br ...