Just transfered a route to my garmin gps and now it says it's updating, a function I didn't select. Is the map being fully loaded for the route or just the rout. If it's the whole damn map that's just dumb.

Just transfered a route to my garmin gps and now it says it's updating, a function I didn't select. Is the map being fully loaded for the route or just the rout. If it's the whole damn map that's just dumb.