You can renew your TomTom Traffic subscription after it has expired or extend it before it reaches its expiry date.
To renew an expired subscription, do the following:
Tip: For more information on MyTomTom accounts, go to tomtom.com/mytomtom.
Your purchase is completed in the iOS App Store. If payment is successful, TomTom Traffic starts within a few minutes on your TomTom app.