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Entering Custom Avoids
The Custom Avoids feature allows you to enter specific areas and
roads to avoid when navigating. Custom Avoids apply to all routes,
but detours apply to only the active route. You can add Custom
Avoids while you are navigating a route or before you navigate.
To enter a custom avoid:
1. Press NAV while navigating to a destination.
OR
Open the Map Page, and press MENU.
2. Select Custom Avoids, and press ENTER.
3. Press ENTER when the Add Avoid button is highlighted.
4. Select Avoid Road or Avoid Area, and press ENTER.
5. Use the ROCKER to move the arrow to the first point in the
avoidance area. Press ENTER to select the first point.
6. Move the arrow to the end point, and press ENTER. During
route calculation and navigation, the GPSMAP 378/478 will
avoid the area within the box or the selected area of the road.
7. When finished, highlight the OK button, and press ENTER.
GPSMAP 378/478 Owner's Manual
Creating a Detour
If there is road construction or some other form of a detour while
navigating a route, you can have your GPSMAP 378/478 create a
detour route for you.
To create a detour:
1. While navigating a course, press NAV.
2. Select Detour from the Navigate Menu.
3. Select a distance, and press ENTER. The GPSMAP 378/478
recalculates your course based on your detour distance.
4. To end the detour manually, press NAV again, and select
Cancel Detour.
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