This is from tomtom.com
Hope this helps looks like you haveto pay for map updates after 30 days, but I am not positive.
We recommend always having the latest version of the TomTom application installed on your navigation device. This ensures you can use the latest features and improvements available for your device.
To check if a new version is available, connect your device to TomTom HOME
and then click Update my device
. For more details see www.tomtom.com/6133
Latest Map Guarantee
Get one free map update if a new map version is released within 30 days of buying a new device.
Start driving with the latest map - guaranteed!
See What is the latest map guarantee
. Map Share™
Get daily map changes from the TomTom community.
In between map releases, you can make corrections to your map – such as road closures, and points of interest – through Map Share™ technology.
See What is TomTom Map Share
. Map Update Service™
TomTom regularly releases brand new maps that incorporate the latest changes to the road network.
With our Map Update Service you get every new release of your map over a 12-month period, from the equivalent of just €9.95 per quarter. That’s four new maps a year.
See the TomTom Map Update Service
. Single map
If you only want to update your map once you can buy a single map. Buy a single map