You can download the update using the Garmin Express application. After it's installed, connect your Garmin Nuvi to the computer with a USB cable and the application finds the correct map update.
If the 90-day period has passed, Garmin requires you to pay for map updates, unless your device has lifetime updates.
Start today so you can navigate with confidence, safe in the knowledge that you have the most up to date maps on your Garmin and are ready for your next adventure Do You Drive an RV?However, if you wish to take advantage of these device upgrades, you must download and install the software updates through Garmin's Web Updater program. Hook your Nuvi 255W to your computer using the Nuvi's USB cable. Choose your Nuvi 255W from the device list on Web Updater. Select "Yes" when prompted to download and install the updates to your Nuvi 255W.To update your Garmin Nuvi GPS for free, download a map update within the first 90 days of using the device through the Garmin nüMaps Guarantee and install the update to your device, as of 2015.Another option is downloading a free open source map and installing it on your device.Continue Reading The Garmin nüMaps Guarantee allows you to download one free map update within the first 90 days of your device connecting to a satellite.
At OSM maps are free, created and updated by users and volunteers across the words.