If you haven't done so already, install the TomTom Home software and fire it up. The available downloads for your TomTom device will appear in a list. The new software update is at the top of the list.
Users are able to preview their route as a list of turns, as a slideshow of images, or as an overview. Here is also where you'll find the route demo option, which is an animated simulation of the chosen route.
If your TomTom features traffic data, the unit can be set to automatically reroute if a faster route is found while navigation is under way. The user can also have the unit prompt before rerouting or simply not reroute at all.