Garmin nuMaps Onetime North America NT 2011 DVD nuMaps Onetime North America NT offers full access to City Navigator North America coverage including the U.S. Canada and Mexico. If your device came preloaded with North America maps you can update those maps with nuMaps Onetime North America NT. This software makes it easy to update your NTcompatible Garmin unit with the latest North America maps including the most uptodate roads routes and points of interest. With a nuMaps Onetime update you will receive one map update for one compatible GPS. To see if your maps are current or to download nuMaps Onetime North America please visit www.garmin.commapupdates. This nuMaps Onetime product is only intended to update units that came with North America maps preloaded from the factory. Will also update City Navigator North America NT maps on your computer. The nuMaps microSDSD data card does NOT replace or update original maps on device but the DVD version does.