I have been running at 50 PSI for a few days on my 19" Primacy tires. No TPMS warnings and no noticeable difference in ride quality on air suspension. I know of a Honda Insight owner who runs his tires at 90 PSI and has done so for years without any harm. He does this for range, but I'd hate to think what it does for his ride quality and comfort.
I run my Insight at 60 psi. That's one of the nice things about a mature platform -- lots of testing has been done by the Insight user community and shared via their forum. The the testing has shown exactly which tire gives the best fuel economy for that car. Given that everybody who concentrates on fuel economy runs that particular tire, testing was done at various tire pressures to determine the optimum pressure (60 psi). Sure, there are minimal gains from running the pressure higher, but most consider it insignificant relative to the ride and handling trade-offs.
Hopefully soon we can get away from the growing pains of Tesla and its products on this forum and start learning and sharing more of the fun stuff.
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Unless you really really really overinflate, the dangers aren't really around tire failure but reduced traction (smaller contact patch) and uneven treadwear which can shorten the life of your tires.
I think this is somewhat mythical, held over from the days of bias-ply tires. Probably the wider the tire, the more likely there is still some distortion from moderate overinflation, but not much.