Submitted by mferrazano on Tue, 2020-02-04 16:16
I received a notification that firmware update 2020.4.1 was available for my Model 3 Performance. Received a notice that firmware update failed but next morning the firmware version listed on the app was indeed 2020.4.1. Left for work using my MS and noticed that later in the AM the M3 was not able to connect to my app. Got home and lo and be hold the M3 was non-responsive, nothing, nada, not connecting to key card, or anything. Called Tesla roadside assistance and the car was "offline" which indicated that something was amiss. A tow operator was sent, he tried to jump the 12v battery which resulted in only being able to open door and detach from charger. Nothing else. Next guess, replace 12v battery. Mobile Tech comes out, replaces battery, and now at least the display activates but shows a number of non-trivial error messages (including messages related to low energy, car won't restart, HV issues, etc). The mobile tech had no idea what was going on, so car was towed to SC. Haven't heard back but it doesn't sound good. Thought it might be corrupt firmware, but rendering ones car dead due to a firmware problem is pretty extreme (car has less then 5K miles). Coincidence or not, never had any issues until the abortive 2020.4.1 firmware update. Anyone hear of any issues for this update. Haven't heard back from SC. Left a message indicating it might be corrupt firmware (hard to believe).