There are several methods you can use to change the route destination.
Driving to Your Destination
This section describes how to follow the route guidance to your destination,
and
choose the icons displayed on the map screen. ...
On-Screen Commands
The system accepts these commands on
any screen. There are over 100 on-screen
commands. Say what is written on the
screen to activate that selection. For lists,
you can say the list item number to ...
Using the Phonebook
PHONE button
► Phonebook
1. Select a name.
Select alphabetical tabs to
display the entries in the group.
2. Select a number.
3. Select Call to begin dialing.
Up to three icons ...