LOL, I never noticed it before, but he's got sensors on his bumper. Do you have a navigation system in your car? I had that option when I got mine but I didn't want to pay extra for it. It's tied in to the navigation system with a backup camera which is also tied in with those sensors. My friend has a car with those sensors and now it's having problems. While driving on the freeway, a little rock hit one of the sensors dead in the center (sensors on front bumper too). Well, it triggered a sensor malfunction and the audible tone comes on everytime he drives his car. He hates it. But the feature is nice. The car slows down by itself when you are within so many feet of an object in front of you. Don't scratch them.