If part of a road is blocked or you wish to avoid part of a route, you can select a specific section of a route to avoid.
A screen opens showing a list of the sections that comprise your current route.
A preview shows you the section you have chosen on the map.
A new route is found that avoids your chosen route section. The new route is shown on the map view with the difference in travel time in a balloon.
Note: It may not be possible to find an alternative route around the route section if none exists.
Guidance to your destination resumes avoiding your chosen route section. As soon as you start driving, the guidance view is shown automatically.