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Depends on the chip if it holds the cars up completely or not. One of the things Tesla had problems with were commodity airbag modules, can't ship without those in there.
On the other hand, I read that the local Porsche dealer had 1 Cayenne steering wheel control module, and that's all that was missing from a batch they had. So you'd come in, they'd plug it in, adjust the steering wheel how you wanted it, remove it, and you could take delivery and get it reinstalled later if you could live with the fixed wheel temporarily.
What's weird to me is how separate they all are. I'd have thought a programmable ECU could replace a dozen little other things, but they've just all been being stamped out to do specific tasks so long that it's probably just the cheap and easy way to do it.
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Rob
1980 SC - 2011 Tiguan - 2018 Tesla M3P
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