During the recent cold snap, I had my car on a free ChargePoint charger. I headed back to the car when the battery was near 90% and kicked on the heat on the app, since the temps were below freezing. When I got back to my car, I was able to unlock it and unplug it. Everything seemed almost normal, except the HVAC wasn't blowing heat, but the seat heat was on. When I went to drive, the car wouldn't budge and threw a lot of codes. I have to paraphrase (should've taken a pic of the screen) here, but the coded were along the lines of "HV battery unable to connect," "Drive Unit failure, code xxxx," Inverter failure, code xxxx," and "BMS failure, code xxxx."
It was bricked. Called roadside assistance, we both agreed that there was no point in taking action that evening since the service center was already closed. The next morning, I reengaged and got the car towed to the SC. By this point, the 12v battery was dead and not even the 9 volt battery trick would open the frunk. My car was very unceremoniously dragged on to the tow truck. It's now been at the SC for about a week.
Just got some diagnostics information that indicated that an inverter failed causing the "pyrotechnic" or what I would call a cartridge-actuated device (CAD) to blow and cause an open circuit in the high voltage circuit. This CAD is in place to help avoid over voltage situations that could result in the car catching on fire. But in so doing, the car was disabled.
I know that I'm not the only one that experienced this failure in coincidence with the cold snap.
As of today, my car is still out for repair. But I'm fortunate for both the car being under warranty and having a loaner to keep me moving.
I'd like to solicit others that have experienced the same issue to give their account here to see if there's a greater problem.
It was bricked. Called roadside assistance, we both agreed that there was no point in taking action that evening since the service center was already closed. The next morning, I reengaged and got the car towed to the SC. By this point, the 12v battery was dead and not even the 9 volt battery trick would open the frunk. My car was very unceremoniously dragged on to the tow truck. It's now been at the SC for about a week.
Just got some diagnostics information that indicated that an inverter failed causing the "pyrotechnic" or what I would call a cartridge-actuated device (CAD) to blow and cause an open circuit in the high voltage circuit. This CAD is in place to help avoid over voltage situations that could result in the car catching on fire. But in so doing, the car was disabled.
I know that I'm not the only one that experienced this failure in coincidence with the cold snap.
As of today, my car is still out for repair. But I'm fortunate for both the car being under warranty and having a loaner to keep me moving.
I'd like to solicit others that have experienced the same issue to give their account here to see if there's a greater problem.