thaslam77
New Member
Ok good to know, I'll try to reach out to the SC to see if they will look at the BMS like as well before my appointment. I spoke to a couple reps outside of Tesla (such as Electrified Garage and Gruber Motors), and they mentioned that this errors seems to appear most for gen 1 Model S right after the most recent software update. Apparently there's something detected for gen 1's due to higher usage of free supercharging. This only grabbed my attention because I did use the supercharger more frequent this past month because I didn't have access to charging at home. I feel this month of supercharger may have caused some issues with the pack, but hopefully it's a similar case as yours with an imbalanced BMS. My pack and drive unit was replaced the first month purchased which was odd but I felt I had a refresh car at that point. It's been 2 years 70k+ miles with a total 150k miles. I just didn't think something like this would occur at this time. But as mentioned hopefully, not a battery pack replacement. This seems to be the main thing that stands out to not keep a Tesla out of warranty. Cost needs to come down for replacing the main components.I did get the alert code bms_u018. My charging returned to normal. I have kept an eye on the battery pack and everything is fine so far so the BMS must have rebalanced the battery pack.