If there is a malfunction in the system or in the power supply.
If the HOLD function is deactivated by depressing the accelerator pedal or brake pedal, e.g. by a vehicle occupant.
The vehicle is stationary.
The driver's door is closed or the seat belt on the driver's side is fastened.
The engine is running or has been automatically switched off by the ECO start/stop function.
The electric parking brake is released.
Active Distance Assist DISTRONIC is deactivated.
The transmission is in position , or .
Active Distance Assist DISTRONIC is activated.
The transmission is shifted to position .
The vehicle is secured with the electric parking brake.
The seat belt is unfastened and the driver's door is opened.
The vehicle is switched off.
There is a system malfunction.
The power supply is insufficient.
In addition, the Brake immediately message may appear in the driver display and a horn tone may sound at regular intervals.
The HOLD function is deactivated.