The user interface of a car was standardized 100 years ago. If you need to read the manual of a car to decide which crap feature to disable seven menu layers deep in a configuration menu - assuming that the function to disable it even exists - then that vehicle should come with a mandatory examination before you can drive it and should not be allowed to be used for rental / short lease fleets.

Your typical manufacturer makes a very large fraction of their income from exactly those two applications.

If there is a mindset that has to change then it is that sticking something somewhere in a manual is sufficient disclaimer to be able to claim 'user error' in case of trouble.