Start the Garmin GPS map updates by connecting your GPS device to your computer system with the help of USB. Another essential thing that is required, Garmin Express app. Now, look for all the available updates for your GPS device and install it on your device. Garmin offers free as well as paid map updates to the customers. Having questions regarding Garmin Map Updates Free Download 2018 ? Be in touch with our well-versed GPS experts for genuine and quick help. We work 24*7 to take your queries.