I believe that the car needs to be plugged in to utilize that feature.
To the contrary, *my* reason for using scheduled climate control is so I can actually get into the car when I leave work to go home instead of having to stand outside for a few minutes while the fan blasts at full speed to make it bearable enough to just sit in.First the reason for using the scheduled climate control is to make the car more comfortable without using any power from the battery.
And the point is we shouldn't have to use the app to manually control it. The schedule should actually do things on schedule.I believe as long as your SOC is high enough it should work.
I am somtimes in a similar situation. I'm able to remotely start the climate system from the app.