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Does the Tesla app have to be open and running for the calendar sync to happen?
Is the car sync-ing with the Tesla app, or some calendar service on the phone (Apple's calendar app on iOS or the Android calendar?)?
I have the same question. Is the Tesla app on my phone pushing calendar updates to the car, or does the Tesla calendar pull updates (from the Tesla phone app)? The sync seems to happen overnight, and changes made in the morning don't show up in the car.
Had to walk over to the car to start charging, as the app wasn't doing it. The app can unlock the car parked in the driveway, from inside my house, though.