It is necessary to perform the Garmin maps update if Garmin devices have to be updated. Garmin Nuvi gives you access to all of the information you need, including maps, traffic updates, and interesting sites. Let's pretend you're going on a hiking or sightseeing excursion. You may have problems if you do not update the Nuvi map as soon as it becomes available. If you don't keep up with the essential improvements, you can end yourself circling the wrong path or traveling in the wrong direction. Garmin's devices are updated on a regular basis.