2009 Toyota Prius Navigation Manual - Page 71

ROUTE GUIDANCE - Detour setting While the route guidance is operating, you can change the route to detour around a section of the route where a delay is caused by road repairs, or an accident, etc. The entire route from the starting point to the destination is displayed. "Guide": To start guidance. "Route": To change a route. (See pages 66 and 68.) 1. Touch "Route". 2. Touch "Detour". 69