GPS 158 Owner’s Manual 3Getting Started WArNINGSee the Important Safety and Product Information beginning on page 13 for productwarnings and other important information�Using the Device Keys• Hold to turn the device on and off�• Select to adjust the backlight�• Select + and – to zoom in and out on the map�• Select , , , and to move the map pointer around the map�• Select NAV to navigate to a waypoint or follow a route or track�• Select PAGe to change between the map and data page views�• Select QUIT to exit a menu and return to the map or data page view�• Select MeNU once to open the menu for the current page�• Select MeNU twice to open the main menu�• Select , , , and to highlight menu items�• Select eNTer to select an item or make a selection�• Select MOB to mark a man-overboard waypoint�Selecting the Map or a Data Page1 From the map or any data page, select PAGe�2 Select MeNU to change the settings for the selected page (optional)�entering Letters and NumbersYou can enter letters and numbers using the on-screen keyboard�1 Select letters or numbers using , , , and �2 Select eNTer after each letter or number�3 Repeat steps 1 and 2 to enter all letters�4 Select OK to accept the entry�