Many of the vehicles on the road today are equipped with fog lights, although they rarely get much use from drivers.

When Should You Use Your Fog Lights?

Most of the time, you will never actually need to use your fog lights. In fact, the only time that you will use them is when the roads are foggy and misty. You can also use them in the rain and when it is snowing. They serve a very specialized niche for your vehicle, and you should not use them except during the aforementioned conditions.

What Do the Fog Lights Do?

When you turn on the fog lights during inclement weather, they will help make it easier to see the edges of the roadway. This can make it easier for the driver to make it safely to their destination, as long as they are driving slowly.

What Makes a Good Fog Light?

The ideal fog light on your vehicle will create a wide beam of light that places the majority of that light toward the ground. This is what makes it easier to see the road in bad weather conditions. The best types of fog lamps will produce white light or selective yellow light.

How Fast Should You Drive When Using the Fog Lights?

These lights do not illuminate much of the road – only that which is right in front of you. Therefore, you need to drive very slowly when you are using these lights, as you will not be able to see what’s further down the road. Keep the speed to a minimum. Usually, when the weather is bad enough that you are using fog lights, you should try to get off the roads as soon as you can.

What Causes the System to Fail?

The fog lights could stop working for a number of reasons. They might have a blown fuse, burned out bulbs, or they may have a bad relay. Regardless of the reason, you will want to have fog lights inspected and repaired.

If you are having issues with your fog lights, or any other problems with your vehicle, you should make an appointment to see a qualified mechanic.

This article originally appeared on YourMechanic.com as 5 Essential Things to Know About the Fog Lights in Your Car and was authored by Valerie Johnston.


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