When you disconnect the black plug on the battery, the contactor in the main battery goes clunk isolating the battery from the car. I can't think of any reason why total isolation wouldn't be the case. If I can't get cooperation from Tesla and no independent for months, Than I will learn more about the battery. Make a hole in the case, insert an orange two conductor high voltage wire connecting one end to the plus and the other to the negative. When I want to charge I will make a calculation of charge time for the main battery to get to 75%, open my trunk and rear door, pull the black plug on the main battery , disconnect the 12 volt battery, connect my 400 volt DC to the battery, set the timer and go to bed . I will do this until rooters get up to speed or Tesla changes their policy. Of course I will have to isolate my car from Tesla. I have also installed manual frunk opening. I can show anyone how easy this is. It works perfectly with all the plastic in place and does not interfere with electrical operation.
Two days ago I call three of the Tesla service centers, with in an hour of my driven time, requesting the part number of the front main bumper. No one will answer the phone but two of them make leaving a mesage possible. Left a message at both. Mine looks different than the one in the parts list. No answer so far. Tomorrow I will search the internet for an updated parts list. If I can find the part number, I will send a company purchase order by email and see what happens. I gave one my vin number and not the other.
Two days ago I call three of the Tesla service centers, with in an hour of my driven time, requesting the part number of the front main bumper. No one will answer the phone but two of them make leaving a mesage possible. Left a message at both. Mine looks different than the one in the parts list. No answer so far. Tomorrow I will search the internet for an updated parts list. If I can find the part number, I will send a company purchase order by email and see what happens. I gave one my vin number and not the other.