4VX7010iGO primo software provides turn-by-turn visual and voice assistance to direct youto your selected destination. The software quickly calculates step-by-stepdirections to any destination available on the included navigation map.The iGO primo software uses Global Positioning System (GPS) satellites, and adigital roadway map database to calculate and display travel directions. The sys-tem’s GPS antenna receives signals from a constellation of 24 satellites orbiting theearth and uses the strongest signals to determine your position to within meters.Vehicle PositionThe iGO primo software’s computer considers vehicle speed and heading changes,together with longitude and latitude information, to accurately determine vehicleheading and position on a digital map.Signals from GPS satellites are used to determine the vehicle location. Three(good) or four (best) satellites must be received to accurately determine location.The GPS reception status is indicated by the GPS symbol on the map.Map and Information DatabaseThe map database used by your iGO primo software was created usinghigh-resolution aerial and land based data collection.Car navigation maps are frequently updated. While the database was judged tobe as accurate as possible at the time of its release, a map database can never be100% accurate. Road information that is maintained in the map databases, such asturn restrictions or road names may change over time.iGO primo mapping is supported by the mapping manufacturer. iGO offersperiodic updates for data such as roads, new addresses, and other navigationalinformation that will keep your navigation system up to date and provide the bestpossible experience. For updates and add-on options, please visit their website atwww.naviextras.com. A free program called “toolbox” can be downloaded fromthis site so you can create a copy of your map as a backup, as well as assist in easilychecking for updates and optional features that are available. Werecommend that you back up your map because If your map becomes damagedor erased, or if the card is lost without being backed up, you will need to purchasea new map package.To report incorrect information, missing addresses, or other map data, click on“REPORT A MAP ERROR” under the SUPPORT section of www.naviextras.com.Errors will be verified and corrected in a future map update.We recommend that you check your map with this system now and every sixmonths to insure you always have the most up-to-date operating systemand maps.