In rainy conditions, when should you turn on your hazard lights?

Turning on your hazard lights in rainy conditions is especially important when visibility is significantly reduced. When visibility drops to less than 20 meters, using hazard lights alerts other drivers that you are having difficulty seeing and may not be moving at normal speeds. This is a safety measure that helps to prevent accidents by making your vehicle more visible to other road users.

In contrast, other scenarios such as driving over a certain speed or simply during heavy downpours may not accurately reflect when visibility is impaired. While it is sensible to be cautious during inclement weather, the crucial factor is the actual visibility level. Additionally, parking by the roadside typically requires using turn signals instead of hazard lights, as hazard lights are meant for situations that indicate a vehicle is potentially at risk on the road. This reinforces the importance of using hazard lights as a safety signaling device when visibility is critically low.