When driving in fog, heavy rain, or snow, what lights should you use?

Using low beam headlights in conditions such as fog, heavy rain, or snow is advisable because they provide better visibility without causing excessive glare. High beams can reflect off the precipitation or fog, creating a blinding effect for both the driver and other road users. This can significantly reduce visibility, making it harder to see the road ahead.

Low beams, on the other hand, project light down toward the road and reduce the chance of light being reflected back into your eyes. This is especially important in inclement weather, where road conditions can be hazardous. Additionally, low beams are standardized for use in adverse weather because they enhance your visibility of the road while allowing others to see your vehicle more clearly as well.

Hazard lights are designed to alert other drivers that your vehicle is stationary or moving slowly, rather than improving visibility. Parking lights are typically used when a vehicle is parked but do not provide adequate illumination for driving purposes. Thus, in situations where visibility is compromised, using low beam headlights is the most effective and safest choice.