Your outlets in the basement are all powered by the GFCI's in the coach. So yes, they'll be dead if the GFCI is tripped.
Various things are powered by the outlets in the basement. On mine, for example, the awnings, built in vacuum and many TV items. You can reset the GFCI's and see if they stay on. If they do, try turning on anything in the basement that is plugged it but not on at the time.
Don & Mary
2019 Newmar Dutch Star 4018
2019 Ford Raptor