nüvi 1690 Owner’s Manual vTable of ContentsManaging Files.................. 34Supported File Types............... 34Connecting Your nüvi to YourComputer .............................. 34Transferring Files .................... 35Deleting Files .......................... 35Using the Tools ................. 36Accessing the Settings ............ 36Using the Where Am I? Page .. 36Accessing Help ........................ 36Using ecoRoute ™ .................... 36Viewing myGarmin ™messages.............................. 40Viewing Flight Information ....... 40Viewing Weather Information .. 41Using the Picture Viewer ......... 41Using the Unit Converter ........ 42Using the Currency Coverter ... 42Using the World Clock ............ 43Creating Routes....................... 43Using the Calculator ................ 44Accessing My Data .................. 44Viewing Offers ......................... 44Customizing the nüvi ....... 45Changing the SystemSettings ................................. 45Changing the NavigationSettings ................................. 46Adjusting the Display Settings . 46Updating the Time Settings ..... 47Setting the Languages............. 47Changing the Map Settings ..... 48Changing Security Settings ..... 49Setting the Bluetooth TechnologyOptions.................................. 49Changing the Proximity PointsSettings ................................. 50Restoring All Settings .............. 50Appendix ........................... 51Caring for Your nüvi ................ 51Locking Your nüvi .................... 52Calibrating the Screen ............. 52Updating the Software ............. 53Clearing User Data .................. 53