I don’t know the answer to your question, but here’s some info:
You can absolutely find a cheaper route with an official key.
3) if you’re plugged into DC, you can tell the car to stop charging. I’m not sure why one would do that.
4) that’s your remote start. Press the lock button and then hold that thermometer refresh button for 4 seconds. If you’re not within remote range of the car you can use the app to do it. It’s very handy.
5) panic button. Press and hold and the car alarm will go off and hopefully draw attention to it and whatever danger you’re in or need help with.
Hope that helps a bit.