If your headlights are foggy, it may be because of the accumulation of rain or snow on the lenses. To clean them, you will need to use WD-40.

  1. Pour a small amount of WD-40 onto a cloth and rub it around the lenses. Be sure to get all of the areas that are foggy.
  2. Repeat this process until all of the fog is gone from the lenses.