Don't know what year your Revolution is, but the GPS is one of the first things I complained about after taking delivery of our new rig. It was never intended for use in an RV. It's the most non-user friendly thing I can imagine and, installed in an RV, it has no campground catagory as part of it's search menu. Even my ancient Garmin has a campground catagory! Our first trip, leaving the dealership, our old Garmin was sitting on the dash, immediately on top of the piece of crap American installed (and that goes for the radio function too). Now the Garmin has been permanently retired to the Jeep and has been replaced in the Revolution by the Rand McNally RV specific (7710) unit.
They definitely missed the mark on that unit (ours is a Clarion). Not only are they not in the right ball park, they're still looking for a ball park, any ball park - relying, no doubt, on one of these paper weights to get them to one.