I’ve gotten random “rear steering unavailable” and “headlight error” alerts even though I’m on 3.3.5 one time after charging, but it was a false alert. The rear steering error went away, the headlight one did not, so I tested all the lights and they worked perfectly. The error went away with a sleep, did not clear with a reboot. Also of note is my HUD does this bizarre dim red background with periodic cycling of brightness during rain or low light but is perfect during the day and at night. Reportedly the HUD has a separate calibration for rain/dim light and normal conditions so if you experience this, you may need your HUD recalibrated. It doesn’t bother me enough to intervene yet, so I’ll wait until 10k miles service to fix that along with my center console that won’t recognize my keycards.