What light should I turn on when driving in foggy weather?

Under normal circumstances, you should turn on the position lights, rear taillights and headlights when driving in foggy days. If the visibility is less than 500 meters, fog lights should be used. When the visibility is less than 50 meters, turn on the double flashing lights of the car in time.

Precautions for driving in foggy days are as follows:

When driving in foggy weather, you should not drive too fast, let alone overtake blindly. At the same time, choose the correct use of speakers. Don't tie the line when driving in foggy weather, and don't slam on the brakes to prevent rear-end collision. You must obey the traffic rules when driving in foggy weather, and you must drive carefully.

If the visibility of a car is more than 200 meters but less than 500 meters when driving on an expressway, it is not allowed to drive at a speed of more than 80 kilometers per hour, and at the same time, it must keep a distance of more than 150 meters from the car in front.

When driving at high speed, the visibility is greater than 100m, but less than 200m, the speed shall not exceed 60km, and the distance between two vehicles shall be above 100m.

If you drive at high speed, the visibility is very low, less than 100 meters, but more than 50 meters. At this time, our driving speed should not exceed 40 kilometers per hour, and the distance between cars should be kept above 50 meters.

If the visibility is less than 50 meters, rest in the nearby service area and wait until there is no fog before driving. There are many expressways now, and they will be closed in foggy days.