To make sure that my prior experiment is still valid under Software Version 520, I shot this video (
https://youtu.be/YY-66j0xhYI) today and in the last couple of seconds, you can clearly hear the fans working with the car asleep.
Couple of points: I am running a newer Beta version of the CIU software which does not have the “Remote Start” or “Preconditioning” option, and I have no way of setting that option. I also only pushed the lock button on the fob only once. At least in my car, it seems that the solar-powered cabin exhaust is always on by default.