These autonomous vehicle trolley problems go just as deep as you want them to - and there are no real right or wrong answers for any of it.

What if the car is faced with a situation where it can either hit a pedestrian to save the passenger or drive over a cliff and save the pedestrian by sacrificing the passenger?

What if a collision is unavoidable but it has the option to choose between hitting a child or hitting a granny?

It’s only a matter of time until we have self-driving vehicles that are far safer drivers than humans - but they still won’t be flawless, and accidents will keep happening. Can we live with there being no one to blame for it? Or do we just go back to human drivers with higher accident rates - at least then we have someone to point our fingers at?

OP is asking about an accident and responsibility, not a trolley problem.
You pretend AVs can’t make mistakes just face difficult choices. That’s false.
You also pretend AVs are safer than human drivers. Nobody knows if that’s true so let’s not pretend it is.