Would you please provide some additional information. What geographic region? What issues have you had with your Model Y since accepting delivery? Was Mobile Service available in your area, was the Mobile Service technician able to resolve any of the issues?
While it is true that it is difficult to communicate with Tesla Service Center once your vehicle is at the Service Center you can leave a voice mail message and someone from the Service Center team should call you back with an update on your vehicle, i.e. awaiting parts, etc.
It is important that your Tesla account is up to date, has your current mobile phone number and email address. Tesla uses a centralized, secure, SMS text message system. When it works, the text message system is how the Tesla Service Center team prefers to communicate with the customer. When the messaging system is unavailable Tesla will communicate via email.
Region...Northeast (NJ)
Issues... On delivery, the car had a 3inch+ deep scratch on one of the passenger doors. The scratch is too much for touchup paint so the whole door will need to be repainted which will take a couple of days. The door is also badly aligned with the front door and rear quarter panel. There was another scratch on one of the other doors which can be fixed with touchup paint I was told. There were other alignment issues with panels, rear lights, frunk, etc., that were "whatevers" in my book. I agreed to take delivery bc I had waited 7 weeks for the car and they told me they'd fix everything. I took delivery on 11/5/20 and they scheduled an appt for 12/1/20 to fix the issues.
Six days after taking delivery, it was raining an my car alarm was triggered. I looked at my app and it said the passenger door behind the driver was opened. I went out to see what going on to find the door closed but the window down slightly. I opened and closed the door twice before the window went up. Seems strange but I thought that was it. After walking back into my house, the car locked itself. A few seconds later the alarm was going off again and the app said the door was opened again. I went out and repeated what I did before. But this time, the window wouldn't go up and the car wouldn't sense the door was closed. I called road side assistance to see what they could do. They had me reboot the car several times. Nothing. Then they had me recalibrate the windows several times. Nothing. In the meantime, my car started opening and closing the back window frequently and the screen had the door being "open" and then "closed" each time. To be clear, the door was never opened. As it was my 6th day of ownership, they scheduled a service appt the next day.
When I dropped the car off the next day, I explained the entire problem to the person in service. I also told them about the 45 min conversation I had the night before. When I dropped off the car, the problem wasn't happening. At that point, the only issue present was the car saying the window on the same door was opened when it wasn't. I explained to the service department that I thought it had to do with the rain. The night before I dropped it off I placed it in my garage. For the first couple of hours the main issue existed but the next morning after the car had time to dry out, the car recognized the door as closed.
After having the car for 4 days, I got a message through the app saying the car was ready for pickup and they couldn't find a problem. I tried to get in touch with someone via email and phone to ask what was going on but got nowhere. Eventually, I went to the service center to try to talk to someone in person. When I did, I learned that they never looked at the issue. They just thought my error was a problem people had with the app saying the rear door was opened. I guess there was miscommunication between people. After another day, of looking at it they still couldn't fine a problem. By this time, I discovered this website and found someone else who had the exact same problem and how it was related to an improperly installed wiring harness in the door which was getting wet and causing the issue. I sent the service dept the post and the head technician (the 3rd tech to look at my car) realized my harness was also installed improperly at the factory.
Another thing I noticed during the whole ordeal was that water seems to be collecting somewhere inside the door. After a couple of days fo dry weather, water streaks (a lot) appear on the windows when you roll them down and back up. I mentioned it at the time and thought it could be part of the issue. I don't think anything was done bc it rained last week and there was a lot of water on 3 of the windows when I rolled them down and back up. It can't be good for the car to have water trapped inside the doors. I'd say it was a design issue b ut my friend with a Y doesn't have the same problem. I've taken video and pictures of the issue and will let service know about it when I bring it in for the original body issues next week.