Magellan RoadMate 700 - Manual (Page 56)

User Options 50
Setting the Route Preferences
From any screen, press the Option button. Select "Configuration"
and press Enter.
Use the 8-way arrow keypad to select "Route Preferences" and
press Enter.
Use the 8-way arrow keypad to select the option to be changed and
press Enter. When the route preferences are correctly set, select the
"Save" button and press Enter.
Avoid Toll Roads When ticked it instructs Magellan RoadMate to avoid known toll roads
when calculating a route.
Automatic Re-Routing When ticked, the Magellan RoadMate will makeup to three attempts to
automatically re-route to the destination when it detects that the vehicle is
not on the calculated route.