This video will show you how to use the map function on your iPhone. Follow these steps to use the map function on your iPhone: From the Home screen, tap 'maps' to open the Map window. Use your finger to navigate and scroll around the map. Pinch your fingers apart and you will zoom in to the location, pinch your fingers together and you will zoom out. You can use your GPS to track where you are by tapping the Tracking icon. If you wish to search for a location, simply tap on the Search field and enter in what you wish to search for. You can view the Google Streetview for that location by tapping the Streetview icon. For directions, simply tap the Directions icon, enter in your locations and tap Route.