TomTom route plan – How to import a route to my TomTom – User Guide

TomTom route plan – How to import a route to my TomTom

If your TomTom model supports routes – Plan a Route.
Send your TomTom route plan by clicking “send to email” and under GPS Files change “Don’t attach GPS data” to “TomTom (.itn)”.
Save your route to your TomTom route planner.
Connect your TomTom to your computer and open your browser – your device will appear listed under “My Computer” as a removable driver (with a new drive letter). Download the itn file you received in your email and save it or leave it open on your computer. Open your “Itn” folder under your removable driver and drag and drop the itinerary file from MyRouteOnline into its folder.
Now safely remove your device from your computer.
Watch your Route Plan on your TomTom.
Start your TomTom and go to “Itinerary planning” under “Main Menu” and click “Load Itinerary”.
Use your TomTom as a route planner with your imported route.
Choose your route and click “Find”, the Itinerary will appear on your screen and when you click “Done” you’ll be asked to navigate to your first destination. Please note that if you already have an itinerary in your TomTom, click “Load itinerary” and then click “Yes” when asked if you want to delete all locations in the current itinerary. Then you choose which of the itns to navigate to and click Find.

For more info try this link – TomTom User Guides