xrayangiodoc
Member
Quite possibly a bad HV battery contactor. I received the same message along with the following:
Regenerative braking system disabled
Car needs service: car may not restart
I had 90K miles on our 11/13 built S85 when the message appeared. The SC also replaced the HVAC drain hose, drive unit (due to excessive noise), and 12V battery. I believe the latter was changed due to the HV battery contactors; the 12V battery seemed just fine and registered 12.7V the week before the warning message appeared. Good luck, a new battery pack is like winning the lottery these days.
I also saw the, " Car needs service: car may not restart" message as well as, "Parking assist is not available", possibly due to the front parking sensors being disconnected with the nosecone in the frunk? My drive unit doesn't seem noisy to me but I will ask about the 12V battery since it has been about 3 years since it was replaced.
Thanks for the insights.