What lights should be used when driving in foggy weather?

2 Answers
DiDakota
07/24/25 3:54am
When driving in foggy weather, both front and rear fog lights should be turned on. If the fog is very heavy, the hazard lights can also be activated. The main purpose of turning on fog lights and hazard lights is to make it easier for drivers of other vehicles to see you, thereby avoiding rear-end collisions and side-swipe accidents. Here are some relevant details: 1. If there are no fog lights, turn on the width marker lights and hazard lights to attract the attention of other drivers. Do not use high beams in foggy conditions. High beams will create a blinding white haze ahead, making visibility even worse. 2. Before setting out, check if the windshield wipers are in good condition. While driving, when fog condenses on the windshield, ensure the wipers can effectively clear the moisture to maintain good visibility.
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MacJoanna
08/10/25 11:30pm
I remember once driving in heavy fog, I immediately turned on the front and rear fog lights. The front fog lights are positioned low and cast a wide beam, which helps penetrate the fog to see the edges of the road. The rear fog lights emit a strong red light that enhances visibility for vehicles behind me. Never use high beams—the intense light reflects off the fog, creating glare and reducing visibility. At the same time, reduce your speed to a safe range, about 20 km/h slower than usual, and double your following distance because reaction times are longer. If the fog is especially thick, I turn on the low beams as a supplement and occasionally use hazard lights to warn others. Before driving, check that your fog lights are clean and free of dust, as dirt can impair their effectiveness. Developing this habit can help prevent accidents. In short, fog light usage is no small matter—it affects everyone's safety. A quick glance at the weather forecast before heading out makes all the difference.
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