But you don't slam your brakes on 100% when you see the lights go on ahead of you, do you? You are gathering other information to make that decision. Your per

But you don't slam your brakes on 100% when you see the lights go on ahead of you, do you? You are gathering other information to make that decision. Your perceived speed, your actual speed, the rate of closure to the bumper ahead of you, road conditions, etc. If the safety system is supposed to be gathering that info while you're not paying attention, where is it coming from?