It was pointed out to me just this past weekend that my passenger side headlight looked way brighter than the driver’s side. And this was during the day when running the daytime running lights. When my headlights full on, I have noticed that the drivers side made a noticeable light spot on the road relatively close to the car. I just never bothered to check the aim. Ooops. This means it’s been like this since the driver’s side headlight was replaced in my fender bender of December 2011... over one & a half years ago.
It is SO easy to adjust UP/Down aim. On the driver’s side its taking a #2 philips screwdriver and turning counter-clockwise to move the aim up; clockwise to move the aim down. (passenger side is the same).