For the most part none of this is novel to the law.
So long as the owner didn’t do anything negligent themselves, then it seems a strong claim of product liability (defective product). It seems there is very little chance of contributory negligence of the owner with this function, unlike crashes in self-drive mode, where the driver was supposed to pay attention and maintain their hands on the wheel, but turns out they were sleeping or in the backseat live streaming.
I do think there should be legislation adopted to protect the victims by giving them a statutory private right of action against both the owner and the car manufacturer to hold them jointly and severally liable for any accident involving self driving vehicles, then in practice the owner/manufacturer (i.e. their insurance companies) to sort out liability.