Precedent will occur
We will have precedent and case law in a few years.
A few trips up to the highest courts and lawyers will be quoting cases for and against blaming the vehicle (and thus the SW and HW therein) for various kinds of incidents.
The Tesla/truck crash which killed the driver must already have started the ball rolling - the system can't just allow Tesla to state 'Hmm, didn't see that truck - will tweak the algo' despite requiring the driver to essentially never use the actual 'self-driving' tech.
Once they start blaming the car tech, the flood gates will open and other tech will start getting blamed for stuff - 'I didn't WANT two tons of creamed corn, it was Alexa's fault"!