It helps to establish that if you get lied to that they will have a hard time in court to explain to the judge why your five figure purchase should not be annulled. Think of it as saying: assuming that you are telling the truth will get me to for over my cash, if it turns out you did not tell the truth you will have an appointment with a judge and this will be entered into evidence as though you swore an oath that it was true.

It probably reduces the chances of an answer to nil unless they have the ability to deliver what you ask for. But the idea that a giant like FCA is going to bend over for you to disable some feature that is standard on their car is a non-starter, there simply is no process for a thing like that.

But at least their marketing&sales department is informed that they could have sold one more vehicle but did not, which given the fact that the OP is anything but stupid is probably what he was going for anyway.