I’m having identical problem. I get twenty or thirty minutes then the red yoke of death. Says ‘cruise control unavailable’. ‘Automatic vehicle hold unavailable’ . And a couple other errors. Do a power down reboot and FSD comes right back on for another half hour or so. I have had a door module replaced, a brake caliper replaced, a full software reload from the dealership, it still happens. I have a service set up for Aug 11- they think it’s a wiring harness failure. Idk, maybe. happened before software update, worse now, but I don’t know if the update is related or not.
I've had the same issues ... the current version (I don't yet have 2025.6) has a thing with double yellow lines when making left turns. It's about the only steering wheel interventions I've had to make for several thousand miles. Speed control remains sucky -- sometimes 5 under the speed limit, then touch the gas pedal momentarily and it will go 10 over. This is NOT 'keeping up with the surrounding flow of traffic.' Other than these things, it's so good that my wife, who three years ago (2021 Model Y with hardware 3) wouldn't let me use FSD when she was in the car, now 'suggests' I use it in the CT because she's more relaxed when the robot is driving.
Mine was hardware, or was made worse by a hardware issue. It got progressively worse and, I believe, self reported. I had to take it into service. Fortunately, repair only took minutes. Just cleaning the part of the windshield under the center camera cover and, I think, a software update.
