See also:

Brake assistant
When you apply the brakes rapidly, this system automatically produces the maximum braking force boost. It thus helps to achieve the shortest possible braking distance during full braking. This ...

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. ...

Low tire pressure message
  The yellow warning lamp lights up. A Check Control message is displayed. ► There is a flat tire or a major loss in tire inflation pressure. ► The system was not reset after ...