Performing the process of Garmin Map Update is one of the easiest things to do. For doing so, you just need to have a pre-installed Garmin express software in your system. In case the Garmin express software is not installed, download and install the same through the official Garmin site and then attach the Garmin map device with the system. After attaching, search for the available updates over the Garmin express software and then download all the available ones one by one and then install the same. Eject the device and then reboot it. Once it gets started, start using the same with the newly added features. The update will be done but in case the problem encounters in between the process, do contact with the Garmin support team for expert and professional help.