[Tatsfield]

I don't know if the '15 differs radically from the '12, but in this respect there is a on/off button for the distance sensors at the bottom right of the central console. It turns off the whole system but the front ones are hardly any use when you are driving and worse when stuck in traffic as you really don't need to be told that you are five feet from the car in front! The handbook should show the button.