What should you use when driving in fog, snow, or heavy rain?

Using low beams when driving in fog, snow, or heavy rain is essential because they provide improved visibility without causing glare that can reflect off of precipitation or fog. The light from low beams is directed downward, illuminating the road just in front of your vehicle, which helps you see the pavement and any potential hazards.

In conditions like fog, snow, or heavy rain, high beams can become counterproductive as their light can scatter in the precipitation, creating a whiteout effect that makes visibility worse. Fog lights are specifically designed to cut through fog, but in many situations, low beams are a suitable choice as they are versatile for various adverse weather conditions, ensuring you maintain a clear view of the road ahead while being considerate of other drivers. Parking lights are not appropriate for active driving situations as they do not provide enough illumination to safely navigate through poor weather.