NUVI Map Update is the process which leads you to keep in-built maps of NUVI updated. Garmin Express which is an application software design by Garmin itself will help you to download updated version of maps. Maps must need to be updated after certain time interval. After update previous issues also get resolved like not able to access maps anymore. It may occur when your GPS need to update. Garmin NUVI Map Update leads you to download and install latest maps into your Garmin NUVI.
