0-9 (Numbers): Select this screen button to selectnumbers.U (Space): Select the space screen button to entera space between characters or the words of a name.Backspace: Select this screen button if an incorrectcharacter has been selected.To make name selections easier, the system will onlyhighlight the characters that can follow the last oneentered. For example, if a Z is entered, a T may not beavailable for selection.If a name is not display after entry, it may need to beentered differently or the map DVD disc may not containthat information. See Database Coverage Explanationson page 2-40 for more information.MapsThis section includes basic information that you need toknow about the map database.The maps are stored on a DVD. The United States,Canada, and Puerto Rico are contained on one disc.Detailed AreasRoad network attributes are contained in the mapdatabase for detailed areas. Attributes includeinformation such as street names, street address, turnrestrictions, etc. A detailed area will include all majorhighways, service roads, and residential roads.The detailed areas include points of interest (POI) suchas: restaurants, airports, banks, hospitals, policestations, gas stations, tourist attractions, historicalmonuments, etc. The map database may not includedata for newly constructed areas or map databasecorrections that are completed after the production ofthe disc. The navigation system will provide fullroute guidance in the detailed map areas.Limited Guidance AreasAny area that is not classified as detailed is a limitedguidance area. Limited guidance streets will bedisplayed on the map display but route guidance maynot be given on these streets. Some POI categories,such as the city center POI category, and some streetaddresses are included in the limited guidance areas.The navigation system will inform you by voice promptswhen you are traveling into a limited guidance areawhere route guidance will not be available. The streetmaps and the directional arrow displayed on thenavigation system can then be used to determine theremaining route to your destination.2-4