To change the settings, your Garmin Speak™ device must be turned on and connected to the Garmin Drive™ app.

From the Garmin Drive app, select > Garmin Speak > Navigation.

Units

Sets the units of measure to use for navigation distances.

Avoidances

Allows you to select features you want to avoid in your routes, such as toll roads, highways, or unpaved roads. You can select the check box next to each feature.