Entertainment system volume reduction: when the parking assist system or voice navigation system is started, the volume of audio playback can be temporarily reduced.
Personal voice training process (only when the vehicle is stationary): You can adapt the voice dialogue system to your voice and pronunciation, thus improving the recognition ability of the voice dialogue system. The personalized voice training function contains 20 voice inputs consisting of specific commands and numbers. Personal voice training program can be used to delete the stored voice training function again.
This answer applies to the second generation models.