When you're driving, using a headset or at a designated place, let Moto Voice:
Moto Voice uses your phone's accelerometer and location data to determine whether you're driving.
Do one of the following:
To stop voice readout temporarily, say ‘Stop’. Your settings resume when the next message arrives.
If you are a passenger or riding a bus or train, you can view the
notification and touch Not now. Your settings resume the next time you drive.
To stop readout at a place, do one of the following: