So I just tried this....
Went to the App and selected a trip. A message came up:
"Download Maps & RV Routing for Trip".
"Download offline maps and RV Site routing data for your trip and never worry about internet connectivity".
I downloaded the maps (I only needed one state and it was 1.2GB). Not sure I'd do that if only on cellular data.
I turned on Airplane Mode, went to the RV Life app, selected the trip and followed the prompts to start the trip. It all worked OK.
Ya think the RV Trip Wizard "expert" at the other end of the help desk line could have done that!!!! geesh....!
2018 F350, 2019 Grand Design 310GKR