Garmin GPSMAP 278 - Manual (Page 69)

Editing Your Route
When you are navigating a route, you can edit that route. You can
add areas and roads to avoid as well as temporary detours to your
current route. You can also add stops along your trip, called Via
Points.
While navigating, press NAV to open the Navigate menu.
Navigate Menu in Automotive Mode
While navigating a route
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 278 avoids
the area within the box or the selected area of the road.
7. When finished, highlight the OK button, and press ENTER.
GPSMAP 278 Owner’s Manual 
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