How to Use Do Not Disturb While Driving on iPhone
Do Not Disturb While Driving is an iPhone specific safety feature available in modern iOS releases. As the name implies, when Do Not Disturb While Driving is activated on iPhone, no calls, messages, notifications, or alerts will come through to the iPhone, much like when the general Do Not Disturb mode feature is enabled. You can even enable automated replies to incoming messages, informing the sender you are driving and will contact them again when you’re done.
The excellent Do Not Disturb While Driving feature can be enabled to activate automatically when the iPhone is connected to a Bluetooth car stereo system, or when the iPhone detects motion activity consistent with driving a car, or, you can choose to enable the feature manually yourself.