From another forum...if you have a surge protector installed in your unit and the genny produces voltage outside the parameters, it will kick off the power from the genny just as it would at a problematic pedestal.
"speed warning...speed warning" perhaps the robotic voice of the GPS causes "speed" to sound like "rv" at the speeds the vehicle would be traveling for it to activate.
I think it is proper procedure for the propane supplier to turn off your onboard tank to insure no open flame in coach. They almost always forget to turn it back on afterwards, you should check before getting underway.