It’s easy to adjust the volume of the available navigation voice by using dashboard and steering wheel controls or voice commands. You can also mute navigation guidance entirely by using your touchscreen.27
Here’s how to adjust the volume of the navigation voice:
Use dashboard or steering wheel controls:
Wait for the navigation voice to begin speaking.
Before the voice finishes giving directions, use the volume knob or buttons located on your dashboard or steering wheel to adjust the volume.
Use voice commands:
At any time, press the Voice button and say "Navigation voice guidance on," or "Navigation voice guidance off."
Use touchscreen to mute navigation voice:
After selecting a Destination, press Home screen, select Navigation.
From Navigation, select the Settings icon.
Press Navigation Preferences > Guidance Mute.