I have 300 miles on my 2018 limited and had an issue yesterday with the head unit. We were driving and listening to the radio and suddenly the sound just went away. We didn't think anything of it as we weren't really paying much attention to the radio until we reached our destination and noticed that the head unit wouldn't turn off when the car was shut down and the door was opened to exit. The unit was just stuck on. I got back in the car and restarted the engine and attempted to secure the unit by pressing the volume knob for several seconds. The unit wouldn't shut off so I went into settings and tried to turn it off there with no luck. I then selected restart and the unit cycled to the "Starlink" page and remained on so I waited for a few minutes to see if it would re-boot which it never did. Already running late for our dinner reservation we closed the doors and locked them via the fob since the door handle locks also weren't working. We looked inside the car and the unit was still on the "Starlink" page. We went in and had dinner and when we returned to the car about 1.5 hours later the unit was still on and on the same page as when we left. I was worried the battery would be dead but the car started and we drove 30 minutes back to our house with the head unit showing the blue background and the word "Starlink" still stuck there. When I got the car in the garage I opened the hood and disconnected the black lead to the battery and waited for a few minutes. After a few minutes I reconnected the battery and everything was now working the way it is supposed to work. This morning we drove 25 minutes each way to Church and everything seemed to be working fine. I suspect that this will happen again at some point and I'll have to wait for it to fail before I bring it in to the dealer because with everything working I'm not sure they'll be able to diagnose the issue. I've had many cars with navigation systems and this is a first for me so I thought I would post to see if others are having a similar issue.