There are actually cases of ACCs failing and those kind of gremlins actually happening - ending up with accidents and whatnot. Not extremely common, but yes it does happen. In fact, there are indeed some vehicles without any way of turning off some of those features or related stuff causing problems. This is typically with the more garbage reliability cars such as Alfa Giulia and the Stelvio, etc... just buy into actually reliable cars. Japanese domestic manufacture tend to be higher up the reliability rankings, typically. This kind of stuff is heard a lot more often with Italian, German, etc vehicles. Some American trashbag SUVs tend to come with these unreliable bits as well. Even a vehicle that looks solid from the outside... such as Lincoln Nautilus. Known for quite bit of issues. Ford product at its finesse there...
Toyota seems to make some decent vehicles. The Auris / Corolla hatch hybrid / HSD with the real first gear instead of CVT, for example. Cheap, practical and relatively reliable. It ain't the fanciest thing, even the Lexus CT... but they do get recommendations for being relatedly reliable, whatnot.
