03/11/19: Low beam headlights on my Cadillac CTS are much too dim, seemingly no brighter than the the daytime running lights. The manual states that a sensor is supposed to cause the low beam lights to brighten when it becomes dark enough outside, but this does not happen. Took vehicle to local Cadillac dealership, but no help. They replaced the light bulbs, but no help. They told me that this has been a problem with Cadillacs. Duh and Double Duh. I have stopped driving at night because it is too dangerous to be on a highway. Even in my neighborhood, a gated country club community, I must creep along at night in order not to hit neighbors out for a stroll.

Time to trade and buy a Jeep Grand Cherokee. My daughter has one, and with a world of difference in low beam brightness.

Charlie Charlie.

I called GM to complain, they checked into it with my dealer and said they do what they are suppose to do (turn on). Dealer told me they are pretty much for looks. Mechanic said GM knows about the problem and their fix was to add more power to the lights which did not help so obviously they know there is a problem but are not taking appropriate steps to rectify like changing out the lights. I can't believe I have a 2012 Cadillac which I just purchased this past year and a simple thing like have working fog lights is beyond my cars ability. Very disappointed in GM's response but I guess they have their hands full with all the other issues I have been reading about.