Routing Settings Routing settings allow you to customize the way Garmin Mobile XT calculates routes. To change routing settings, select (Menu >) Settings > Routing. Calculate Routes for - select a vehicle type. Off-Route Recalculation - select Prompted (Garmin Mobile XT asks before recalculating routes), Automatic- Announced (voice prompts announce recalculation), Automatic- Silent (recalculation without voice prompts), or Off (no recalculation). Route Preference - select Faster Time, Shorter Distance, or Off-Road. Turn Preview - select Enabled (shows a brief preview of upcoming turns) or Disabled. Avoidance Setup - check the types of roads or areas you want to avoid when creating routes. Garmin Mobile XT avoids using these items in a route unless there is no alternative. For more information, see Avoid Roads and Areas.