A: Besides having a bulb out, a main reason headlights seem to be less bright is oxidation. Oxidation occurs naturally and is a build up of loose oxygen electrons that are attracted to the surface of the headlight. As oxidation occurs it can create an absorbent surface layer that will trap road debris such as gas and oil. These additional contaminants can turn the surface from white to yellow to brown as the oxygenated surface solidifies into a hard outer coating. This can best be corrected by using a Deoxidizer to restore the surface. This is something that we can take care of for you next time you are in for service. Seeing and being seen is so important as the days start to get shorter and the weather starts to become more rainy. Increasing your visibility by restoring your headlights can help keep you safe. Next time you are in, as us about checking your headlights to see if they can be restored.