What's with the rudeness? It's an easy fix, he just needs to ask the previous owner for the pin.
In
@jjrandorin's defense, it's more than the pin for the valet mode, the glovebox, or whatever: The Tesla Account for the previous owner needs to go away and a new one for the new owner created. Again, there's procedures all over Tesla's web site on How To Do This, and said procedures are things that the previous owner should have done. And the dealership should have been hovering over the previous owner, with the dealership becoming, from Tesla's perspective, the new owner.
And then the dealer could have performed the same dance with the buyer of the car; the buyer would have the car on
their account, would now be able to charge the car at Superchargers, bring it in for service, and all that jazz.
At the moment, there
may be a title in progress; once the new owner (and OP of this thread) has said title, an ID saying him/her is him/her, and a bill of sale or something then a Tesla SC can take care of things. But this is a pain and it sometimes takes a while for a title to show its face.
Speaking of that last: There has occasionally been horror stories/news articles where a dealer sold a car and, for whatever reason, they didn't actually have title to the car, leading to endless fun. The last time I saw something like this it was something weird; the dealer had gotten a loan to buy the car that they sold, but the lender had a lien or something, and the buyer of the car waited months with Bad Things Happening. There have also been stories about cars going through relatively shady auction lots where things like salvage titles are whitewashed. So, not having the title is, like, a somewhat scary place to be.