Anacdotaly I suspect most car software bugs aren't hunted or patched at all, unless an exec at the company happens to run into the bug in their personal vehicle and flags it for the development team to fix.
I've heard too many stories of car software issues where the dealer gives it back with a note "reset the battery and tested good" but the bug is still easily reproduced.
There was some research recently that showed the same thing. People who are "dug in" on a topic, usually a political topic, will shut down when a person tries to persuade them of an alternative, but are much more open to hear the same arguments from AI and actually reconsider their position.
I believe this is a big reason why X-Ai was so important for conservatives to get off of the ground, they were afraid all the crazy would start wearing off if people asked the "woke" models for the truth.