We have a 2018 M3 LR with 60k miles and the other morning it wouldn’t drive. Screen listed two simultaneous errors: BMS_a085 and VCFRONT_a192.
Made a mobile appointment but was told to call roadside assistance instead to have it towed to the service center. There they diagnosed the problem as “power switch - HV Battery - Positive”. It will take a week for the needed part to arrive. We changed the 12V battery about 9 months ago after receiving an on screen warning. About 6 months ago the car wouldn’t charge and we ended up having to have the PCS replaced, at which point Tesla changed the 12V battery again.
Just curious if anyone has had similar experiences with these errors and if anyone knows what the “Power switch - HV battery - positive” means. I hope it doesn’t suggest a more major problem with the battery. We’re waiting for more information from Tesla.
Made a mobile appointment but was told to call roadside assistance instead to have it towed to the service center. There they diagnosed the problem as “power switch - HV Battery - Positive”. It will take a week for the needed part to arrive. We changed the 12V battery about 9 months ago after receiving an on screen warning. About 6 months ago the car wouldn’t charge and we ended up having to have the PCS replaced, at which point Tesla changed the 12V battery again.
Just curious if anyone has had similar experiences with these errors and if anyone knows what the “Power switch - HV battery - positive” means. I hope it doesn’t suggest a more major problem with the battery. We’re waiting for more information from Tesla.
