There should be a hub cap tool in one of the compartments.
My husband told me that they are very hard to remove, as the lug nuts had been torked (spelling)
Because of this we had extenders put on all 6 tires to check the air pressure, well worth the money.
Life's a journey, enjoy the trip.
The hubcap removal tool will more than likely not work. The first time I used mine on our Sunseeker the handle just twisted. I now carry a half inch ratchet with an extension and the appropriate size socket. Just a word of caution, when you reinstall the hubcaps I would recommend using Loctite on the lugs that hold it in place. The way roads are today, even with Loctite I lost one and it almost went through the windshield of the car behind me.
I would tell you what size socket but I can't remember off the top of my head.
Mine just pry off. Work a large screwdriver or hubcap tool around the rim between the hubcap and the wheel. Harbor Frieght Tools sells a hubcap tool that works great. One end for prying the cap off and a rubber mallet on the other for pounding it back on. Auto parts stores would also have such a tool.
2012 Forest River Sunseeker 2300 Chevy