Some things like an unclosed door signal are super useful, but some things are so annoying... Last time I rented a car in the US, I had to stop and read the manual after a mile because it was unbearable: it beeped when a car was passing me, it beeped if I didn't use my turn signal *after* passing a car (who does that ?), it vibrated in a scary way if I got close to any line, it beeped if I got 1mph over what it *thought* was the speed limit (many streets were wrong), and so many other things. I spent 15 mins in the manual to disable it all, and it was like 5am for me due to jet lag.