When Is It Mandatory to Use the Emergency Light?

The use of emergency lights is a crucial aspect of ensuring road safety in hazardous situations. However, many people are unaware of when it is mandatory to use them or what regulations apply to modern systems, such as the V16 light. In this article, we will explain in detail the situations where you must use emergency lights, the current regulations, and how to ensure proper signaling in case of breakdowns or accidents.

What Are Emergency Lights and When Should They Be Used?

Emergency lights, also known as hazard lights or warning lights, are an integrated system in all vehicles designed to alert other drivers that the car is in an unusual situation. They are activated via a specific button on the dashboard, typically marked with a red triangle.

When Is It Mandatory to Use Emergency Lights

Spanish regulations (General Traffic Regulations) establish that the use of emergency lights is mandatory in the following situations:

1. Breakdown or vehicle immobilization: If your car breaks down or is stopped in a hazardous location, you must activate the emergency lights to warn other drivers.
2. Emergency situations: In the event of an accident, emergency lights help signal the vehicle and alert other road users.
3. Traffic jams: If traffic is stopped or moving very slowly and there is a risk of collision, emergency lights are used to warn vehicles approaching from behind.
4. Towing another vehicle: If you are towing a car on the road, both vehicles must have their emergency lights on.

When Should Emergency Lights Not Be Used?

Although they are an essential tool, they should not be used in everyday situations such as:

• Double parking.
• Momentarily stopping in prohibited areas.
• Driving normally, as this can confuse other drivers.

V16 Light: The Future of Emergency Signalingión de emergencia

The V16 light is an emergency signaling device that complements or replaces the traditional emergency triangle. Starting January 1, 2026, its use will be mandatory in Spain, according to regulations from the Directorate-General for Traffic (DGT).

What Is the V16 Light?

The V16 light is a luminous device placed on the roof of the vehicle to enhance its visibility in the event of a breakdown or accident. It operates using LED technology and is visible within a 360-degree radius. Additionally, some models are connected to the DGT 3.0 platform, enabling automatic notification of the location of the broken-down vehicle.

Advantages of the V16 Light

• Increased visibility: It can be seen from a distance of over 1 km, even in low-light conditions.
• Easy installation: It is placed on the roof without the need to exit the vehicle, reducing the risk of accidents.
• Sustainability: Many devices are rechargeable, eliminating the need for disposable batteries.

Usage Obligations

Starting January 2026, it will be mandatory to have an approved V16 light instead of emergency triangles. Until then, both devices can be used optionally.

Car Emergency Signaling: Key Steps for Proper Action

When your vehicle is immobilized due to a breakdown or accident, it is crucial to properly signal the situation to avoid additional risks. Here’s a step-by-step guide to act safely:

1. Turn on the hazard lights

The first step is to activate the hazard lights as soon as you notice that the car is in a risky situation. This will alert nearby drivers.

2. Place the emergency triangle or V16 light

If using triangles, place them at a minimum distance of 50 meters from the vehicle and ensure they are visible from at least 100 meters away.

If you have a V16 light, place it on the roof of the car, ensuring it is securely fixed.

3. Wear the reflective vest

Wearing a reflective vest is mandatory whenever you exit the vehicle on interurban roads. Make sure it is easily accessible inside the car, such as in the glove compartment.

4. Move to a safe location

If possible, move with the vehicle occupants to a safe location, such as behind the safety barriers on a highway or road.

Specific Emergency Signaling Situations

Emergency on a Highway or Freeway

On these roads, proper signaling is even more critical due to the speed of the vehicles. Place the triangles or the V16 light as soon as possible and ensure that you and the other occupants of the car are off the roadway.

Breakdowns in the City

In urban areas, hazard lights are sufficient in most cases, as it is not mandatory to place emergency triangles.

Multiple Vehicle Accident

If multiple vehicles are involved, coordinate with other drivers to properly signal the entire affected area. The V16 light can be especially useful in such cases.

What Does the Law Say About Emergency Signaling?

The General Traffic Regulations establish the following obligations related to emergency signaling:

1. Hazard lights: Mandatory in case of immobilization due to a breakdown or accident.
2. Emergency triangles: Must be used on interurban roads until 2026.
3. V16 light: Currently allowed as an alternative and mandatory starting in 2026.
4. Reflective vest: Must be worn whenever exiting the vehicle on roads outside urban areas.

Tips to Keep Your Emergency System in Good Condition

1. Check your hazard lights regularly: Ensure that the hazard lights are functioning properly.
2. Verify the V16 light certification: Only certified devices will be valid starting in 2026.
3. Keep a reflective vest accessible: Store this item in an easily accessible location inside the car.
4. Replace damaged triangles: Triangles must be in good condition to remain visible.

Importance of Emergency Lights in Road Safety

Knowing when it is mandatory to use emergency lights and how to act in hazardous situations is essential to ensure safety on the road. Moreover, the introduction of the V16 light represents a significant advancement in emergency signaling, offering greater visibility and ease of use.

Whether you are on a highway, a secondary road, or in the middle of a city, proper signaling can make a difference in preventing accidents. Always keep your emergency systems in good condition and stay updated on current regulations to be prepared for any situation. Your safety and that of others are in your hands!