See also:

Activating HDC
Press the button; the LED above the button lights up. ...

Malfunctions
Steering wheel vibration Frequent activation of the steering wheel vibration causes the system to overheat. This causes Active Blind Spot Detection to become deactivated. Let the system cool an ...

Functional readiness of the airbag system
When the ignition is switch on, the warning lamp in the instrument cluster lights up briefly and thereby indicates the operational readiness of the entire airbag system and the belt tensione ...