What lights must be turned on before using fog lights?

[DelJordan]

Before turning on the fog lights, you need to turn on the parking lights. Fog lights: Generally refers to automotive fog lights, which are installed on the front and rear of the vehicle. They are used for road illumination and safety warnings during rainy or foggy weather, improving visibility for the driver and other road users. Function: Their purpose is to make the vehicle visible to others in conditions of reduced visibility, such as fog or heavy rain. Therefore, fog light sources need to have strong penetration. Most vehicles use halogen fog lights, while LED fog lights are a more advanced option. Fog lights must be installed below the bumper, at the lowest point of the vehicle body, to ensure their effectiveness. If installed too high, the light cannot penetrate the rain or fog to illuminate the road, which can easily lead to dangerous situations.

[DylanRose]

When I first started driving, I tried turning on the fog lights on a rainy day, but nothing happened no matter how long I pressed the button. Later, a veteran driving instructor told me that before using the fog lights, you must first turn on the headlights (the main front lights of the car). This is because fog lights are auxiliary lighting, and their circuit design relies on the power supply system of the headlights. If you don't turn on the headlights first, the fog light switch might not work, acting like a small safety feature of the car. Fog lights are mainly used in heavy fog or heavy rain to help illuminate the low area in front of the car, but avoid using them in normal weather as it can affect other drivers' visibility. Remember to check the lighting system every time you get in the car; developing this habit can help avoid unnecessary trouble.

[StMiles]

As a seasoned driver with over 20 years of experience, I've seen many people try to turn on their fog lights directly, only to find it ineffective. The reason is simple: most car models require the headlights to be turned on first before the fog lights can be activated. Fog lights are essentially designed to assist the headlights, especially in low-visibility conditions such as mountain roads or heavy fog. The car's electrical circuit connects the fog lights to the headlights, and the fog lights only receive current when the headlights are on. New drivers should take note: don't rush to press the fog light button—make sure the headlights are on first. In daily driving, use fog lights only in special weather conditions, such as snow or sandstorms. This habit can help protect both you and others on the road.

[VonEmily]

From a safety perspective, turning on the fog lights must be preceded by activating the headlights. This vehicle design prevents misuse: fog lights have high power and can cause glare in clear weather, even violating traffic regulations. Activating the headlights first to enable the system before turning on the fog lights ensures supplementary lighting is only used when necessary, such as in heavy fog or rainstorms. I always strictly adhere to this while driving, as negligence could lead to accidents. Related safety reminders include checking if the bulbs and circuits are functioning properly to avoid malfunctions. Developing the habit of checking before driving can reduce road risks.