Count me as another with catalytic converters issues. Love the mini van in almost every way but driving down highway with about 2500 miles on my new 2018 and check engine light came on. No other indicators were out of line but by the time I could safely pull over my engine completely stalled and I had a burning smell. Dealer says it’s the cat converter (and ACC SW?) issue. There are many ways this could have been better handled by Chrysler (like doing the fix that they knew about before I actually picked up the vehicle or at least notifying me of the need or issue). Doing nothing was about the only way to screw this up. Very disappointing and potentially dangerous. Pretty bummed and hope these fixes are legit and lasting.