
Hazard lights can be used during heavy rain on highways, but doing so is very dangerous. Heavy rain can obscure road conditions for drivers, and using hazard lights may confuse following vehicles about whether your car is moving or preparing to slow down and stop. Additionally, it becomes difficult for trailing vehicles to discern your lane-changing intentions, significantly increasing the risk of accidents. Below is relevant information about the use of hazard lights in vehicles: Use when the vehicle cannot move: When a vehicle breaks down or is involved in a traffic accident while waiting for the police, hazard lights should be activated. This serves as a warning to following vehicles, alerting them to the presence of a stationary vehicle ahead to prevent collisions and further safety incidents. Do not use in low visibility: Traffic authorities have also issued regulations stating that using hazard lights in extremely low visibility conditions will result in a 1-point penalty and a fine. Therefore, it is crucial to remember not to use hazard lights during heavy rain or dense fog.

It's completely acceptable to turn on the hazard lights when driving on the highway during heavy rain, and I often do this to enhance safety. Because visibility is particularly poor in heavy rain, and surrounding vehicles become blurry, turning on the hazard lights can immediately alert the cars behind me to my presence, avoiding rear-end collisions. I remember one time on the G15 highway, the rain was pouring down like buckets, and after I turned on the hazard lights, I clearly felt the car behind me keeping a greater distance. However, remember not to speed up when the hazard lights are on; maintain a steady low speed. If conditions permit, it's best to find a safe spot to pull over and wait until the rain eases before continuing. Additionally, using fog lights in combination works even better—hazard lights are just for warning, not as driving signals. It's also important to regularly check your car lights to ensure they are functioning properly; otherwise, they won't be of help in bad weather.

Turning on hazard lights during heavy rain on highways is definitely a good idea. I believe doing so can make driving feel more secure. Traffic regulations permit their use in low-visibility emergencies, such as heavy rain, as they provide a clear warning signal to following vehicles and reduce accident risks. However, it's important to note that they aren't necessary in all rainy conditions—for instance, during light rain. When I drive long distances and encounter heavy rain, I always press that hazard light button and slow down to below 60 km/h, maintaining a steady speed and avoiding sudden lane changes. Wet roads make driving hazardous, and hazard lights are just one of many safety measures—staying focused and keeping a safe distance are equally crucial. Additionally, light intensity can be affected in high humidity, so I always clean my car lights beforehand to ensure maximum visibility.

I fully support using hazard lights during heavy rain on highways, as they instantly enhance driving safety. When the rain is heavy and everything around looks gray, vehicles behind might not see your position, but the flashing pattern of hazard lights is very noticeable. Last month, I encountered a heavy downpour and almost got rear-ended because I forgot to turn on the hazard lights. Since then, I've made it a habit to turn them on immediately when heavy rain hits. Slow down your speed and don't exceed 80 km/h, hold the steering wheel steadily to avoid sudden braking. It's also good to use fog lights for additional visibility. If the rain is extremely heavy, it's safer to pull over at a service area. Remember to regularly check and maintain your vehicle's lights to prevent failures at critical moments.

If you encounter heavy rain on the highway, I strongly recommend turning on the hazard lights as an emergency measure. This not only alerts the vehicles behind you but also helps you maintain a safe distance in low visibility conditions. When driving in such situations, I always immediately press the hazard light button while slowing down to a safe speed. However, this is not the only measure; it should be combined with other habits such as turning on the front and rear fog lights and maintaining steady driving without frequent lane changes. In heavy rain, lights can easily be obstructed by the rain, so it's important to ensure all lights are functioning properly to avoid accidents. Developing this reaction habit can significantly reduce the risk of collisions, especially in high-speed environments.


