The iPhone feature is intended to work just like the standard “Do Not Disturb” mode, but with the addition that it tries to turn on while you’re driving. It has a variety of options and advanced features which we’ve covered thoroughly in our full write up of Apple’s Do Not Disturb While Driving Mode.
Related Questions:
– Can do not disturb while driving be turned off?
– Does do not disturb while driving block calls?
– Can do not disturb while driving be disabled?