Jeffpl - that is exactly what my issue is with car play in my Lexus nx350 2022. I went to Lexus and they said I have the most recent infotainment software. I reported this exact issue to Apple senior tech and the guy said lots of people with different model cars and different iPhones - not just the 15 pro have called in with the same issue. Interesting observation about lexus though. When I updated to 17.1.1 mine worked for one day and then reverted back too so I know that it can work on my car and my phone - 15pro and I still point the finger at Apple to fix this. Disappointed to hear that beta2 still doesn’t fix this!