And it doesn't matter to me if it is a software or hardware problem. The miles ain't there anymore - that is all that is important.
Definitely Tesla needs to respond to this. I'm definitely curious if the problem is that the BMS is defining 100% for you at lower and lower amounts (software bug). It would seem to me that if they do a centering calculation, the BMS should always define 100% capacity such that a 40 kWh owner never sees any degradation until the 60 kWh pack cannot hold 40 kWh anymore.
I do wonder how many issues the Tesla engineering team is fighting - with so many cars in so many new situations, they may be really stretched right now. It would seem to me that the easiest solution is to give you a temporary 60kWh upgrade until they can sort their software out. Or at the very least, bump a software rev that redefines the 40 kWh as say, 50 kWh for a bit and then later sort out the BMS.
:smile: