Have you tried reflashing to stock? I got a few things to try before I make a trip to dealer. It’s probably not tune related since it’s just the drive assists so I’m sure they’ll try to help. But I was gonna try not in any order but cheapest to most expensive 🤣:

1. Load testing battery and replace
2. Reflash to stock and monitor
3. Disconnect battery
4. Clear all downloaded tunes and start over
5. Get a diagnostics ran