Offline maps that you downloaded on your phone or tablet need to be updated before they expire. When your offline maps expire in 15 days or less, Google Maps will try to update the map automatically when you're connected to Wi-Fi. If your offline maps aren’t automatically updated, you can update them by following the steps below. May 17, · In this mode, when you’re not connected to Wi-Fi, Google Maps will only use data from the offline areas that you’ve downloaded. Before you use this mode, make sure you download offline areas. To turn on this mode, open the Google Maps app . To download routes using your cellular data, open Google Maps and open its side menu, then tap on "Offline maps." From there, hit the cog shaped settings button in the top-right, and either tap on "Download preferences, followed by "Over Wi-Fi or mobile network" on the popup prompt (Android), or simply select "Over Wi-Fi or mobile network" from Author: Amboy Manalo. May 13, · Phones Leer en español How to use Google Maps offline mode on iOS, Android. Save Google Maps for offline access, so you can navigate the roads even when you're off the slicelive.com: Jason Cipriani.