I have a 2021 Model Y long range that I took delivery of in March. The car has been rock solid for me all this time, but for the last week or so, I've been needing to do the thumbwheel reset daily to get the MCU to turn on.
Here's what I've been able to piece together:
Any suggestions on what I can try, or is this something I need to send off to the service center and have them deal with. I'm afraid that since it only ever happens when the car is first used for the day, that it may be a lengthy debugging process on their end.
Here's what I've been able to piece together:
- Happened every single morning for the past week or so.
- The screen stays blank. If I do the thumbwheel reset, I never see the tesla logo like it usually shows, it simply starts up and plays music after a minute or two.
- I've tried the brake + thumb wheel reset, but that doesn't seem to do anything different.
- I have sentry mode disabled at my house, so the car is able to go into sleep mode at night. The car has sentry mode enabled everywhere else, so it stays awake when it's not at home (and I've not had this happen elsewhere).
- I am on the latest FSD beta. I can't recall if this started after any particular update.
- The app says that it connects to the car if I open it in the morning, but it only ever says parked. It won't show me the location or cabin temperature. If I turn on climate control, it shows the animation like it goes on, but it doesn't actually affect the car at all. To me, this suggests that app is able to reach the car's modem, but the MCU isn't responding. I don't know enough about how any of that works though.
- The phone key still works, I'm able to get into the car just fine.
- I can drive the car just fine with the screen blanked out. I was curious if it'd ever turn on by itself yesterday, but I was able to drive all the way to the grocery store without the screen firing up. I did the reset in the parking lot there and it was fine for the rest of the day.
- It has finally gotten really cold here lately (0-20 degrees F). That might be part of the problem.
Any suggestions on what I can try, or is this something I need to send off to the service center and have them deal with. I'm afraid that since it only ever happens when the car is first used for the day, that it may be a lengthy debugging process on their end.