Which lights must be turned on in foggy weather?
2 Answers
In heavy fog, you should turn on the headlights, position lights, and rear lights, and avoid using high beams. The function of car lights: Fog lights have stronger penetration, so they must be turned on in foggy weather. Most new car models now have hazard lights and turn signals that do not interfere with each other, and the turn signals have higher priority. This means that when the hazard lights are on and you activate a turn signal, the hazard lights will automatically turn off, and the corresponding turn signal will light up. After the turn signal is turned off, the hazard lights will automatically resume. When to switch lights: You can turn on the hazard lights when driving straight or on highways to make it easier for vehicles behind to notice you. However, they should be turned off when making a turn. Fog lights should remain on continuously. When you activate the turn signal while the hazard lights are on, the hazard lights will automatically cancel and switch to the turn signal. Once the turn signal is turned off, the hazard lights will automatically resume.
I remember driving in quite a few foggy conditions. Back then, if I didn't turn on the fog lights, I couldn't see anything in the fog—it was like driving with a cloth over my eyes. Once, on my way back from the countryside, the fog was so thick I couldn't see my hand in front of my face. I forgot to turn on the front and rear fog lights and could only rely on the regular headlights. As a result, everything was just a white blur, and I nearly rear-ended another car. That's why you must turn on both front and rear fog lights in foggy conditions—the front fog lights are positioned low, spreading light evenly across the road to reduce glare, while the rear fog lights shine bright red to alert drivers behind you. Avoid using high beams—they reflect off the fog, scattering the light and making visibility even worse. If your car doesn’t have rear fog lights (some older models don’t), at least turn on the parking lights as a temporary measure. Safety comes first—driving with them on in the fog keeps you steady. Don’t wait for an accident to regret it.
