Emergency on a Japanese Highway: What to Do and How to Call for Help (JAF)

Experiencing a vehicle breakdown or a sudden flat tire is stressful in any situation. When it happens on a foreign highway where you might not speak the local language, that stress can quickly escalate into panic.

Japan’s expressway system is incredibly safe and well-monitored, but accidents and mechanical failures do occur. The key to navigating a highway emergency in Japan is understanding the established safety protocols and knowing exactly who to contact.

From deploying your warning triangle correctly to communicating effectively with the Japan Automobile Federation (JAF) through your rental agency, a little knowledge goes a long way. This guide will walk you step-by-step through the process of handling an emergency on a Japanese highway.

We will cover the immediate physical actions you must take to secure your vehicle, how to use the roadside emergency phones, and how to coordinate rescue services. By familiarizing yourself with these procedures, you can ensure that a minor breakdown remains just a temporary inconvenience rather than a major disaster.

1. Immediate Actions to Take When Your Vehicle Fails

The absolute most critical moment during a highway emergency is the immediate aftermath of the vehicle failure. Your primary objective is not to diagnose the mechanical issue, but to prevent a secondary collision with fast-moving traffic.

Japanese expressways, such as the busy Tomei Expressway or the Shuto Expressway, often have high traffic volumes and narrow shoulders. If you feel your tire blow out or your engine lose power, remain calm and do not slam on the brakes.

Immediately activate your hazard lights to signal to the drivers behind you that you are experiencing trouble. Carefully steer your vehicle towards the left side of the road, aiming for the emergency stopping lane or the widest part of the shoulder available.

Securing the Vehicle and Deploying the Warning Triangle

Once you have safely maneuvered your car onto the shoulder, engage the parking brake and leave the hazard lights flashing. If visibility is poor due to rain, fog, or darkness, also turn on your headlights or fog lights to ensure your vehicle is as visible as possible.

Before you open your door, check your mirrors carefully for approaching traffic. It is generally much safer for everyone to exit the vehicle from the passenger side, away from the active driving lanes.

After exiting, you must deploy a reflective warning triangle. By Japanese law, you must place this triangle at least 50 meters behind your vehicle to give approaching drivers ample time to react and change lanes.

If you are renting a car, ensure you locate the warning triangle in the trunk before you even start your trip. If you break down at night, you should also use a flare (usually located in the passenger side footwell) in addition to the triangle for maximum visibility.

Finding a Safe Place to Wait for Help

After deploying your warning signals, do not return to sit inside the disabled vehicle. While it might seem safer or warmer inside the car, sitting in a stationary vehicle on the shoulder of a highway is incredibly dangerous.

Secondary collisions, where an inattentive driver rear-ends a parked car, are unfortunately common and often fatal. The safest place to wait for help is outside the vehicle, completely off the roadway.

If there is a guardrail, climb over it and wait on the grassy embankment or behind the concrete barrier, keeping a safe distance from the traffic. If you are on an elevated viaduct or a bridge where stepping behind a barrier is impossible, stand as far forward of your vehicle as possible, close to the edge.

Never stand behind your car or between your car and the warning triangle. By prioritizing your physical location over the vehicle’s condition, you drastically reduce the risk of injury while waiting for assistance to arrive.

2. Utilizing the Highway Emergency Telephones

Once you and your passengers are in a safe location, you must contact the authorities to report the incident and request assistance. While pulling out your smartphone and searching for a number seems like the modern solution, the most effective tool is often right on the highway itself.

Japanese expressways are equipped with a highly reliable network of dedicated emergency telephones. These phones are specifically designed to quickly connect stranded drivers with the regional expressway control center.

Understanding how to locate and use these phones is a crucial piece of highway safety knowledge. They are often the fastest way to get a patrol vehicle dispatched to your exact location to secure the scene.

Locating the Emergency Phones

You will not have to walk far to find an emergency telephone on a Japanese highway. They are installed at very regular intervals: every 1 kilometer along the main driving routes.

Inside tunnels, where the danger is heightened, they are placed every 200 meters. These phones are easily identifiable; they are typically bright orange boxes mounted on poles along the shoulder, or set into the walls inside tunnels.

If you break down, simply look up and down the highway, and you should be able to spot one nearby. When walking to the phone, always stay on the shoulder or behind the guardrail, and never attempt to cross the active traffic lanes to reach a phone on the opposite side of the road.

If you are unable to walk to a phone due to injury or extreme weather, you will have to rely on your mobile phone, which we will discuss in the next section.

Communicating with the Control Center

When the operator answers the emergency phone, they will typically ask you to describe the nature of the emergency. You should state clearly whether you have had an accident, a breakdown, a flat tire, or if someone is injured.

Even if your Japanese is limited, communicating basic keywords like “accident” (jiko) or “breakdown” (kosho) is very helpful. The primary goal of the control center is to secure the highway.

Depending on the severity of the situation, they will immediately dispatch a yellow highway patrol vehicle to your location. These patrol vehicles are equipped with flashing lights and large electronic signs to warn approaching traffic, significantly improving the safety of the scene.

They will not tow your car or fix your engine, but they will ensure you are safe while you arrange for a tow truck through your rental agency or the Japan Automobile Federation (JAF). Always follow the instructions given by the control center operator and the patrol officers when they arrive.

3. Calling the Police and Road Emergency Dial (#9910)

While the orange emergency telephones are highly recommended because they automatically transmit your location, there are situations where you cannot reach one safely. You might be injured, the weather might be too severe, or you might be stopped on a narrow bridge with no walkway.

In these scenarios, you must rely on your mobile phone to summon help. Calling emergency services in a foreign country can be intimidating, but the Japanese system is designed to handle these situations efficiently.

It is crucial to know which numbers to call depending on the severity of your situation. You will need to provide your location manually, so paying attention to the kilometer markers (the small green signs with white numbers posted along the side of the highway) before you make the call is essential.

When to Call the Police (110) or Ambulance (119)

If your highway emergency involves a serious collision, injuries, or a vehicle fire, you must bypass the highway control center and contact the national emergency services immediately. In Japan, dialing 110 connects you directly to the police, while dialing 119 connects you to the fire department and ambulance services.

These numbers are toll-free and can be dialed from any mobile phone, even if it does not have a Japanese SIM card (provided it can connect to a local network for emergency calls). When the operator answers, clearly state the nature of the emergency and whether you need an ambulance (“kyu-kyu-sha”) or the police (“kei-satsu”).

The major dispatch centers for these emergency numbers typically have access to multi-lingual translation services. They will bring a translator onto the line to facilitate the conversation, allowing you to accurately report your location, the number of vehicles involved, and the extent of any injuries.

Do not hang up until the operator tells you it is okay to do so, and be prepared to follow their instructions regarding first aid or securing the scene while you wait for the sirens to arrive.

Using the Road Emergency Dial (#9910)

If your situation is a standard breakdown—such as a flat tire, a dead battery, or running out of gas—and there are no injuries or immediate threats to life, you should not tie up the 110 or 119 emergency lines. Instead, use your mobile phone to call the Road Emergency Dial by dialing #9910.

This number functions similarly to the orange emergency phones on the highway shoulder. It connects you to the expressway control center responsible for the specific region you are driving through.

Unlike the physical phones, however, the operator will not automatically know your location. You must look for the nearest kilometer post and report the highway name (e.g., Tomei Expressway), the direction of travel (Inbound/Outbound), and the specific kilometer number (e.g., 55.4km).

Reporting your location accurately is crucial for the prompt dispatch of the yellow highway patrol vehicles. It is also important to use #9910 if you witness a dangerous situation while driving, such as a large object debris in the middle of the lane, a vehicle driving the wrong way, or a severe accident ahead of you.

Reporting these hazards promptly helps the control center warn other drivers and prevent further accidents.

4. How the Japan Automobile Federation (JAF) Can Help

Once the immediate danger has been mitigated and the highway patrol has secured the area around your vehicle, you still need to figure out how to get your car moving again or towed to a repair shop. The highway patrol vehicles do not offer mechanical repair or towing services.

For this, you need to rely on a professional roadside assistance company. In Japan, the largest, most reliable, and most ubiquitous roadside assistance organization is the Japan Automobile Federation, commonly known as JAF.

JAF is the Japanese equivalent of the AAA in the United States or the AA in the UK. They operate a massive fleet of distinct blue and white tow trucks and service vehicles across the country, ensuring that help is never too far away, even in remote mountainous areas or late at night.

Understanding how JAF operates and how to request their services is vital for resolving your highway breakdown efficiently.

The Scope of JAF Roadside Services

JAF provides a comprehensive range of roadside assistance services designed to address almost any common vehicle failure. If you experience a flat tire, a JAF mechanic will come to your location and either patch the tire if it is a simple puncture or replace it with your vehicle’s spare tire.

If your battery dies, they will provide a jump-start. If you accidentally lock your keys inside the car (a frustrating but common occurrence), they have the tools to unlock the vehicle without causing damage.

They can also deliver emergency fuel if you run out of gas, or assist with pulling your vehicle out if it becomes stuck in mud or deep snow. Crucially, if your vehicle has suffered a major mechanical failure or has been severely damaged in an accident and cannot be driven, JAF will tow it to the nearest designated repair shop or rental agency branch.

The mechanics dispatched by JAF are highly trained professionals who prioritize safety and efficiency. They are accustomed to working on the narrow shoulders of busy expressways and will handle the repair or towing process with expert precision.

Type of Issue	JAF Service Provided	Typical Resolution
Flat Tire	Tire change or temporary patch	Can often resume driving immediately with the spare tire.
Dead Battery	Jump-start service	Can resume driving after a successful jump-start.
Major Mechanical Failure	Towing service	Vehicle must be towed to a repair facility or rental branch.

Calling JAF Directly vs. Through Your Rental Agency

If you are driving a privately owned vehicle and are a JAF member, you can call them directly by dialing #8139 from any mobile phone. The operator will ask for your membership number, your location, and a description of the problem.

However, as an international tourist, you are almost certainly driving a rental car. In this scenario, you should generally not call JAF directly.

Instead, you must contact your rental car agency’s dedicated emergency hotline. The phone number for this hotline is always provided in the rental agreement documents you receive when picking up the car.

When you call the rental agency, explain the situation. The agency will then act as an intermediary; they will authorize the necessary repairs or towing and will dispatch JAF (or a contracted partner company) to your location on your behalf.

This is crucial because if you bypass the rental agency and arrange for a tow yourself, the agency may refuse to cover the costs, and you could be held liable for expensive towing fees. The rental agency needs to know where their vehicle is being taken and what repairs are being performed.

5. Coordinating with Your Rental Car Agency

Dealing with a broken-down rental car involves more than just getting it towed off the highway. You are dealing with a vehicle that belongs to a company, and that company has strict procedures regarding accidents, damage, and repairs.

Failing to follow these procedures can result in severe financial penalties, including the nullification of your rental insurance coverage. Therefore, clear and prompt communication with your rental agency is just as important as contacting the police or JAF.

The agency will guide you through the next steps, including how to handle the police report, what to do with the damaged vehicle, and how to arrange for a replacement car so you can continue your journey.

The Importance of the Police Report (Jiko Shomeisho)

If your emergency involves any kind of collision—whether it is with another vehicle, a guardrail, an animal, or even a hit-and-run in a parking area—you absolutely must call the police (110), regardless of how minor the damage appears. The police will respond to the scene and file an official accident report, known in Japanese as a “Jiko Shomeisho” (Accident Certificate).

This document is legally required by the rental car agency’s insurance provider to process any claims for the damage to the vehicle. If you fail to call the police and return a damaged rental car without a Jiko Shomeisho, the insurance coverage you purchased (such as the Collision Damage Waiver) will be voided.

You will be held personally responsible for the full cost of the repairs, as well as a Non-Operation Charge (NOC) to compensate the agency for the time the car cannot be rented out. Even if you scratch the bumper on a concrete pillar at a rest stop, call the police and get the report.

Do not attempt to hide the damage or fix it yourself; the financial risk is simply too high.

Arranging a Replacement Vehicle and Journey Continuation

If JAF determines that your rental car cannot be fixed on the side of the road and must be towed away, your immediate concern shifts to how you will continue your trip. This is where your rental agency’s support becomes crucial.

When you initially call their emergency hotline to report the breakdown, ask them explicitly about the procedure for obtaining a replacement vehicle. Depending on the agency’s policies and the availability of cars at nearby branches, they may dispatch a replacement vehicle to your location, or they may ask you to travel by taxi or train to the nearest designated branch to pick up a new car.

Keep all receipts for any emergency transportation costs (taxis, trains) incurred due to the breakdown, as the rental agency may reimburse you depending on the terms of your contract.

It is also important to clarify what happens to the luggage in your disabled car. JAF tow truck drivers are usually very accommodating and will allow you to transfer your belongings to a taxi or the replacement vehicle.

While a major breakdown will inevitably cause a significant delay in your itinerary, clear coordination with your rental agency ensures that you can eventually resume your travels with a safe, functioning vehicle.

Conclusion

Experiencing an emergency on a Japanese expressway, whether it is a sudden flat tire, a mechanical failure, or a minor collision, is undoubtedly a stressful event that can temporarily derail your travel plans. However, by understanding the robust safety infrastructure in place and knowing the correct protocols to follow, you can manage the situation safely and efficiently.

The absolute priority in any highway emergency is to secure your vehicle and protect yourself from secondary collisions. This means promptly activating your hazard lights, moving to the shoulder if possible, deploying your warning triangle at a safe distance, and waiting outside the vehicle behind a guardrail.

Never underestimate the danger of fast-moving highway traffic. Once you are safe, utilizing the orange emergency telephones or dialing #9910 connects you immediately to the expressway control center, who will dispatch highway patrol to secure the scene.

Furthermore, understanding the roles of the various support services is crucial. While the highway patrol ensures your safety on the road, they are not mechanics. For towing and repairs, you must rely on professional roadside assistance like the Japan Automobile Federation (JAF).

For international travelers driving rental cars, the most important communication channel is the rental agency’s emergency hotline. They serve as your central point of contact, coordinating with JAF for towing and guiding you through the essential process of obtaining a police accident report (Jiko Shomeisho) to ensure your insurance coverage remains valid.

While no one wants to think about emergencies during a vacation, committing these procedures to memory before you hit the road provides immense peace of mind. By prioritizing safety, acting calmly, and utilizing the excellent support networks available in Japan, you can navigate unexpected highway challenges and quickly get back to enjoying your road trip adventure.