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1.15
I just posted this on the other thread ...
EDIT: FWIW ... I decided to jump in put the car in drive just to see what would happen ....
All the warnings disappeared.
EDIT 2: My service guy just called me back and said this is a known issue that is supposed to be corrected in the upcoming firmware release and can be ignored.
"Double error message..."Ha what does it meeeean?
@zap and others
Take a look at v1.15.14:
Model S software/firmware changelog - Tesla Motors Club - Enthusiasts & Owners Forum
My working theory is that something in update v1.15.14 triggered a sequence of tests and that those tests "misbehave" when the car is not in gear (for whatever reason). Perhaps part of that test tries to cycle through the gears and when it can't (for whatever reason) it pops the error and, furthermore, when the charging cable is attached the attempt to put the car in gear triggers the additional error message.
Just a guess but seems plausible given the symptoms.