How would it know? Might be able to figure out that it has reduced braking capacity but most everything else could either just be seen as road conditions or require about a thousand pounds of sensors that may still not be able to figure it out. And that’s not talking about the person who will “fix their car” in the most unhinged ways possible, like the video I saw of the guy that replaced his brake lines with clear plastic hose.

I do all the work on my car myself, and can pretty confidently say that a lot of stuff just isn’t even possible to monitor. There are ways to monitor a lot more than we do right now but diagnosing issues is pretty complicated and without certain information it can be downright impossible. I took a friend’s car for a drive be auss he said it shook only when turning one direction and I nearly immediately clocked it as something loose with the outside wheel(it was the lugnuts) but for something like that a computer just couldn’t know.