Why does my navigation system not display all of the traffic data as shown available on the market coverage maps?
To display the XM NavTraffic service, a navigation system requires a map database from NAVTEQ or TeleAtlas. Specific coding relating to the display of the traffic data is contained in the map database and is updated with the release of new map database updates. Therefore, if your map database is out of date, you may not be able to see all of the available traffic data available as part of the XM NavTraffic service. Contact your car dealer for information on map database upgrades or for aftermarket systems, contact NAVTEQ or TeleAtlas.
