Things like that Tesla driving straight into a wall and killing its driver. Or not seeing a van right in front of it because the sun was too bright. Things where a bit of common sense (not something AI excels at) might have avoided them.
On the flip side the lives saved will be based on having super human reaction times / situational awareness and will be things no person would have been able to do.
So maybe there’ll be a battle of public opinion (and PR!) weighing these things against each other.