When you run the Volt through those automated car wash is there anything special. Just turn it off and leave it in neutral? Same as any car?
This was not always the case, either the car wash increased the washer pressure or re-positioned the spray. It is also possible that the spring in the charge port cover latch mechanism is weaker than when my Volt was new. Duck tape to the rescue. Only once have the car wash brush and/or high pressure wash spray removed the duck tape I placed on the charge port cover over the area of the latch release.That is interesting about the charge port door coming open. I think on the 2017 you just press the port door to pop it open and there is no lock. It makes sense that pressure from a car wash could open it. Maybe not the best design, like the one before it that was a problem for a different reason.
I've been running my Volts through the car wash this way for years, never had a problem. As for folding the mirrors, the one time I let them fold them the car wash ripped them back open. So I don't bother with folding them.I don't even think you have to turn the car off. Just put it in neutral. At least, that's what I did about a month ago, and I've noticed no ill effects.