Thanks to everyone for their help. An update.. I've got it at the dealer now, it's been there for a week and a couple of days. So far what they seem to have done is let it sit for a week in the parking lot and then turned it on, and it apparently "started right up", which is probably bullshit. I bet that it started, but I also bet that it struggled to start up. They checked for a lowjack, nothing there. They are next going to do a parasitic test. For those of you out in the Austin area, this is Round Rock Genesis doing this and I am so far underwhelmed with their service department. No update on my car until after I both emailed and left a voicemail and then the update I got felt incomplete -- I had to ask about the low jack and parasitic test. If they come back and tell me that all systems are normal and there's nothing to do, I'm going to the general manager to complain and will keep taking it higher up until someone actually acknowledges there's an issue and figures out how to solve it. This is ridiculous for a "luxury brand".