Some quick googling brings up some US results that this only makes you liable if you were speeding or doing something else considered slightly dangerous, or you didn’t properly maintain your brakes.
It works like this in just about every US jurisdiction, it's just that most of the time the DA declines to prosecute if your brakes fail. But there's no legal protection, you're still possibly going to be charges.
If you kill someone with a car in a way that's neither negligent nor reckless I don't see how it could fulfill the criteria for involuntary manslaughter which are exactly those things.
Even if it is a software error, even if the brakes stop working, even if x, y or z (etc)
It is always the responsibility of the driver to accept the consequences of any forseen or unforseen actions of any kind of outcome.
Depending on the unfortunate event, any mitigating events might be taken into account.