What Lights Should Be Turned On in Foggy Conditions?

[LaGeorge]

When driving in foggy conditions, motor vehicles should turn on fog lights and hazard warning flashers. Below are the relevant details: 1. When driving at night without street lights, poor lighting, or encountering low visibility conditions such as fog, rain, snow, dust, or hail, motor vehicles should turn on headlights, position lights, and rear position lights. However, high beams should not be used when the following vehicle is driving close to the vehicle in front in the same direction. 2. The "Road Traffic Safety Law" clearly states that in severe weather conditions such as heavy fog, drivers should promptly turn on the fog lights on their motor vehicles to make their vehicles visible to other drivers. 3. In extremely low visibility conditions caused by heavy fog, it is best to turn on the vehicle's "hazard lights." According to regulations, "hazard lights" are used when the vehicle or driver encounters an emergency. Heavy fog itself constitutes a special weather condition.

[MartinDella]

I've been driving for twenty years and have the most experience with foggy days. First, make sure to turn on both front and rear fog lights—they have strong penetration, so other vehicles can spot you from afar. Keep your low beams on, but never use high beams, as they'll just create a blinding whiteout. Remember to activate your hazard warning lights, the double flashers, to alert others of your position from all directions. Another thing—slow down in heavy fog, stay centered in your lane, and avoid unnecessary lane changes. Keep your rear windshield and mirrors clear, ideally using wipers and defoggers. If the fog is too thick, find a safe spot to pull over and wait for it to clear.

[DeJordan]

Last time in heavy fog on the highway, I truly understood the necessity of fog lights. Both front and rear fog lights should be turned on. For vehicles without fog lights, turn on the parking lights and low beams, along with the hazard warning flashers (i.e., emergency blinkers). High beams are completely useless—they actually make it harder to see the road. Maintaining a safe distance is crucial; when visibility drops below 100 meters, keep at least 50 meters behind the vehicle ahead. Remember to turn on the windshield wipers and activate the rearview mirror heater to ensure clear visibility. If visibility becomes too poor, don't push through—pull over at a service area or emergency lane and wait for the fog to clear.

[MacGavin]

When I was learning to drive, my instructor emphasized the skills for driving in fog. The first thing is to turn on the fog lights and low beams; if the car has front and rear fog lights, turn them all on. If the car's lighting configuration is simple, then keep the low beams and position lights on. Never use high beams! They cause the light to scatter diffusely in the fog, making visibility even worse. Additionally, turn on the hazard lights to increase visibility. Controlling speed is the most crucial—adjust your speed according to the density of the fog; the thicker the fog, the slower you should drive. If visibility is poor, honk the horn frequently to alert others and pay attention to the sounds of other vehicles.

[Toby]

Turning on fog lights is a basic operation. Front fog lights improve visibility ahead, while rear fog lights alert following vehicles to avoid rear-end collisions. Simultaneously activate low beam lights and position lights. In heavy fog, it's essential to turn on hazard warning lights (emergency flashers), but never use high beam lights. Keeping windows clean is crucial - activate front and rear defogging functions and adjust wiper frequency appropriately. It's advisable to turn on interior ventilation to prevent window fogging. Keep windows closed and use recirculation mode to block external moisture. Minimize lane changes and drive slowly within your lane.

[MacPiper]

Driving with lights in fog must be safe and practical. Front fog lights and rear fog lights must be turned on. If the vehicle is not equipped with fog lights, use low beams along with hazard warning lights. Absolutely avoid using high beams! It is recommended to also turn on position lights and daytime running lights. In terms of control, hold the steering wheel firmly, press the accelerator gently, and reduce speed as the fog gets thicker. Turn on the rear window heater to maintain visibility and use wipers to clear fog. If visibility is too poor, stop in a safe place and turn on the hazard lights while waiting. Remember to turn off the hazard lights and fog lights when the weather clears to avoid affecting others.