Re: bits of your car not working...
This is more like a traditional car maker breaking into the car you just bought from a dealership and removing a feature ( say, the NAV system or the seat heating ) because " - you - did not pay [the manufacturer] for it" ...
Sounds weird, in case this story really happened that way ...
Just because a "feature" of a car is a configurable software item and not a physically installed item, it still belongs to the car's features that are sold to the first customer who for all I know should be allowed to sell it to a new owner via dealership or directly.