What to Do When Your Car Breaks Down on a Motorway

A breakdown on a motorway is one of the most frightening situations a driver can face. Traffic is fast, the verge is narrow and there is nowhere obvious to go. Knowing in advance what to do on a motorway breakdown can make the difference between an inconvenient delay and a dangerous one. This guide sets out the key steps in the order you should take them, explains how the advice differs on roads with and without a hard shoulder, and covers what to do if you cannot reach a safe place. It is general guidance only. Always follow current official advice, such as the Highway Code and instructions from the road operator or emergency services.

The golden rule: safety first, car second

Your vehicle can be repaired or replaced. You cannot. Everything below is built on that idea, so if you ever have to choose between saving time or saving the car and saving yourself, choose yourself and your passengers.

Step 1: Recognise the problem early

Many breakdowns give some warning: a warning light, a loss of power, a strange noise, a smell or steering that feels different. If you notice something wrong, do not wait to see how far you can get. Start planning where you will stop.

• Take your foot off the accelerator gradually.
• Check your mirrors and signal early.
• Look for the nearest safe place, such as a service area, an exit, a hard shoulder or an emergency area.

Do not slam on the brakes or stop in a live lane unless there is no other option.

Step 2: Get to a safe place

On a motorway with a hard shoulder

1. Switch on your hazard warning lights to alert other drivers.
2. Move over to the left, onto the hard shoulder, as far left as you safely can.
3. Stop with your wheels turned to the left, away from the carriageway, so that if the vehicle is hit it is less likely to be pushed into traffic.
4. Switch off the engine and, in many cases, switch off the lights unless visibility is poor, in which case follow current guidance on keeping side lights on.

On a smart motorway without a hard shoulder

Some motorways use the hard shoulder as a live lane some or all of the time. Here, you should try to reach an emergency area if one is close, or leave the motorway at the next exit or service area. Emergency areas are marked with a blue sign with an orange SOS telephone symbol. If you can reach an emergency area, treat it like a hard shoulder: stop, hazards on, wheels turned if applicable, then follow the steps below.

If you cannot reach a safe place

This is the situation drivers fear most. If you must stop in a live lane:

• Keep your hazard lights on.
• If you can do so safely and it is not safer to remain inside, you might consider leaving the vehicle by the nearside, but only if you can reach safety behind a barrier. If there is no safe way out, stay in the vehicle with your seat belt fastened.
• Call 999 and tell the operator you are stopped in a live lane on a motorway. Give your location as precisely as you can.
• Do not attempt to place warning triangles on a motorway. They are not for use on motorways.

Road operators may close lanes, display signs and use detection or cameras to spot stopped vehicles, but you should not rely on them to reach you in time.

Step 3: Leave the vehicle safely, if it is safe to do so

If you are on a hard shoulder or in an emergency area:

1. Get everyone out via the left-hand doors, away from moving traffic.
2. Leave animals in the vehicle if safe to do so, or keep them under tight control well away from the road. A loose animal near a motorway is dangerous for everyone.
3. Move to a place of safety, usually behind the safety barrier, well away from the carriageway. If there is no barrier, stand as far from the road as practical, on the embankment, upwind where possible.
4. Do not stand between your vehicle and the traffic, and do not stand in front of or behind the vehicle.
5. Ask passengers to put on high-visibility clothing if it is available and does not slow your evacuation.
6. Do not get back into the vehicle to wait. In a collision, passengers outside and away from the road are safer.

Disabled drivers or passengers who cannot leave the vehicle should stay in it with their seat belts on, hazard lights on, and call for help immediately. Tell the operator that someone cannot leave the vehicle. If you have an emergency roadside telephone nearby, use the instructions on it.

Step 4: Call for help

Option A: Emergency roadside telephone

Motorways have emergency telephones, usually about a mile apart, with an arrow on marker posts showing the direction to the nearest one. These calls go to the road operator or control room, who will see where you are and can alert patrols, recovery services and the police if needed. Face the traffic when you use the phone so you can see approaching vehicles. This is a good choice if you have no mobile signal or are unsure of your location.

Option B: Mobile phone

Call your breakdown provider or the emergency services if you are in danger. When you call, be ready to say:

• Your location: motorway number, direction of travel, nearest junction and marker post number. Marker posts are small numbered signs on the left edge of the carriageway.
• The make, model, colour and registration of the vehicle.
• What happened and what the vehicle is doing.
• If anyone is vulnerable, injured, pregnant or elderly.
• Whether you are in an emergency area or on a hard shoulder.

If you use a map app or what3words, share that too. Never stand in the carriageway or climb over barriers to get a better signal.

When to ring 999

Call 999 if:

• You are in a live lane or cannot get to safety.
• Anyone is injured or unwell.
• There has been a collision.
• You feel threatened.
• There is a fire or smoke.

If you are unsure, it is better to call and explain.

Step 5: Wait safely

• Stay behind the barrier or away from the road.
• Keep an eye on the traffic and on your vehicle, but do not stand beside it.
• Keep children close and calm, and keep phones charged if possible.
• Do not attempt repairs, even small ones, on the hard shoulder or in an emergency area. Wheel changes beside live traffic are especially risky.
• Be cautious if someone offers help. A genuine patrol will usually be in a marked vehicle, arrive after you have asked for help, and be able to identify their organisation. If you are unsure, ask the person to wait, call your provider to verify, and keep a safe distance.

Step 6: When the patrol or recovery arrives

The recovery operator or patrol will assess the situation and may:

• Fix the problem if it is simple, such as a flat battery or a minor electrical fault, if it is safe to do so.
• Move the vehicle to a safer location off the motorway before working on it.
• Arrange recovery to a garage, home or agreed destination.

Passengers usually travel in the recovery vehicle if there is room. Follow the operator’s directions about when to get back into a vehicle and how to leave the scene safely.

What if you run out of fuel or have a puncture?

These are common reasons for motorway breakdowns. Treat them the same way as any other breakdown: get to safety, call for help and let a professional deal with them. A puncture on a motorway is more dangerous than at the side of a quiet road because of the speed and volume of traffic. For many drivers, waiting for a patrol is the safer option than changing the wheel themselves, particularly on a hard shoulder with passing traffic.

Special cases

Electric vehicles

The same safety steps apply. Once the vehicle has stopped, tell the breakdown provider that it is electric, as recovery methods may differ. If there is smoke, a burning smell or fire, move away from the vehicle at once and call 999.

Caravans and trailers

If towing, get everyone out and away from the road. Do not stay in the car or caravan. Tell the operator that you are towing, as it affects the type of recovery truck required.

Fog, rain and darkness

In poor visibility, take extra care when leaving the vehicle. Use hazard lights and, where guidance supports it, side lights. Move quickly but carefully behind the barrier.

Motorway services and slip roads

If you can reach a service area or exit before stopping, do so. They are safer than any part of the main carriageway.

Prepare before you travel

A little preparation reduces risk and stress.

• Keep your breakdown provider’s number saved in your phone.
• Make sure you have a phone charger or power bank.
• Carry a high-visibility jacket in the cabin, not the boot.
• Keep a torch, warm clothing and water in the car, especially for winter or long journeys.
• Check tyres, oil, coolant and fuel before long trips.
• Know your registration and policy number.

Our guide to preparing a breakdown kit can help you build a simple set.

Common mistakes to avoid

1. Stopping in a live lane when you could have reached an exit or service area.
2. Sitting in the car on the hard shoulder with passengers inside when you could have moved behind a barrier.
3. Opening a door into traffic.
4. Using warning triangles on the motorway.
5. Trying a quick repair next to fast traffic.
6. Accepting help from unknown vehicles without checking who they are.
7. Forgetting to give a precise location.

How to Prepare a Breakdown Kit for Your Car
Breakdown Recovery FAQs: Wait Times, Towing and Safety

FAQs

Should I stay in my car on the motorway?
If you are on a hard shoulder or in an emergency area, usually no: exit via the left and wait behind the barrier. If you are stopped in a live lane and it is not safe to leave, stay inside with your seat belt on, hazards on and call 999.

How do I find my location on a motorway?
Look for the marker posts on the left of the carriageway, which show a number, or use a map app. The emergency telephone also tells the control room where you are.

Can I walk to the nearest emergency phone?
Only if it is safe and your breakdown provider or the operator tells you to. Use the arrows on marker posts to find the nearest phone, and walk on the side of the barrier away from traffic.

Do I need to put out a warning triangle?
No, not on a motorway. They are not for use on motorways.

Conclusion

Knowing what to do in a motorway breakdown comes down to a few ideas: signal early, get to the safest place you can reach, get yourself and passengers out and away from traffic if it is safe to do so, call for help and wait behind a barrier. Never attempt repairs next to live traffic, and always put safety above the vehicle. Read the latest official guidance, save your provider’s number, and keep your car in good shape so you are less likely to need any of this.