Like Functions Should Have Like Controls

My car has two identical buttons right next to each other. The only difference between them, in the dark, is that one is above the other. This, of course, is not a defining difference; there is still no actual way to tell which is which unless you are entirely certain beforehand.

One of these buttons turns on the rear window defroster and the other turns on the hazard flashers. These two functions have absolutely nothing to do with one another. Why are they set apart, on the side, with completely indistinguishable controls? Usually, things are grouped together by function. One toggle on the steering wheel stem in my car controls lights: headlights, high beams, turn signals. All together. Another similar toggle on the other side controls the wipers and wiper fluid. The radio has a set of controls that all look and function similarly, and are helpfully grouped together. Same with the air vents and heating/air conditioning.

Somehow, though, these two controls missed this rational organization. And now, I never know if I am going to clear up my window or inform all drivers around me that I am a road hazard to be avoided at all cost.

Now that I think about it, I guess this is appropriate.