The auto mode works on the screen and buttons even if headlights are left in the off position. If you drive into a underpass with the headlight in off position it will toggle the Day and Night mode irregardless. I feel its a good implementation as it reduces glare and increases contrast when its bright. The sensitivity is a none issue for me as its working and changing to the
ambient lighting condition. In fact its totally transparent until you focus on it. A well implemented product will have no or minimal distractionto users. If it constantly comes into your attention than something is of concern. That is from my experience from our daily life and more so in driving.