English 3Appendix 19Updating the Software 19Updating the Map Data 19Custom POIs (Points of Interest) 20Finding Custom POIs 20Deleting Custom POIs 20Icons Used in This ManualImportant precautions are described to prevent injuries, etc.Special instructions, supplementary explanations, limitations, and reference pages are described.Customizing the Settings 18Customizing the Navigation System 18Changing the System Settings 18Changing the Map Settings 18Changing the Navigation Settings 18Adjusting the Display Settings 18Updating the Time Settings 18Setting the Languages 18Adding Security 18Manual ConventionsWhen you are instructed to “touch” something, use your finger to touch an item on the screen.The small arrows (>) used in the text indicate that you should touch a series of items. Forexample, if you see “touch Where To? > Favorites” you should touch Where To?, and then touchFavorites.