You can change the name of a route or change the turns the route contains.
Select
Info > User Data > Routes & Auto Guidance Paths.
Select a route.
Select
Review > Edit Route.
Select an option:
To change the name, select
Name, and enter the name.
To edit a turn from a list, select
Edit Turns > Use Turn List, and select a turn from the list.
To select a turn using the chart, select
Edit Turns > Use Chart, and select a location on the chart.
Modifying a turn that uses a saved waypoint does not move that waypoint, it relocates the turn in the route. Moving the location of a waypoint used in a route does not move the turn in the route.