Garmin Express software will automatically update software and download a map to the nuvi 2595. It can take hours, and if interrupted it may fail. My computer went to sleep while waiting for download, so I got the “map unavailable“ error message but also “You’re up to date “ message with the current software version. I changed computer sleep settings in Control Panel, then reloaded the map with Garmin Express. When completed you can see the map name and version under Settings/Map&Vehicle/myMaps with a green check mark. Under Settings/Device/About/Detailed maps you can see mapmaker and copyright info with recent date.