I had done a factory reset (maybe I should not have?) in attempts to get wifi working - I had not yet discovered the the internet access switch under the BT setting for my paired iPhone.
So I used the download link above and re-installed all the software, but that .RAR file is missing the car files, so when you restart - you have no car displayed, but everything else works.
I reached out to support and got the complete download for my model Y - [THANK YOU!!]
May I recommend the updating the download file accordingly?