Black plate (79,1)Cadillac Escalade EXT Owner Manual - 2011Infotainment System 7-79. Automatic rerouting may displaya route returning to the setstopover if you are heading fora destination without passingthrough a set stopover.. The route prohibits the entry ofa vehicle due to a regulation bytime or season or any otherregulation which may be given.. Some routes may not besearched.. The route to the destination maynot be shown if there are newroads, if roads have recentlychanged, or if certain roads arenot listed on the map DVD.See Database CoverageExplanations on page 7‑79.To recalibrate the vehicle's positionon the map, see your dealer.Map Data UpdatesThe navigation map database isstored on a compact flash card. It isusable only in this type of navigationsystem, and will not function in otherelectronic devices.The map in the vehicle was installedby the factory and is the mostup-to-date information availableas the vehicle was produced. Thismap may have to be updatedperiodically, provided that the mapinformation has changed. See yourdealer for service.Database CoverageExplanationsCoverage area depends upon themap detail available. Some areashave greater map detail than others.The navigation system works onlyas well as the information providedon the stored map data. See MapData Updates on page 7‑79 on howto obtain updated map information.