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Emergency

What to Do When Your Truck Breaks Down

Step-by-step guide on handling an HGV breakdown safely, from motorway procedures to finding emergency assistance.

Immediate Safety Steps

When your HGV breaks down, safety is the priority:

On a Motorway

1. Pull onto the hard shoulder if possible, as far left as you can

2. Turn on hazard lights immediately

3. Exit via the left (passenger) door away from traffic

4. Move behind the barrier if present

5. Walk to the nearest emergency phone or call from a safe position

6. Face traffic so you can see approaching vehicles

On Other Roads

1. Get the vehicle off the carriageway if at all possible

2. Activate hazard lights

3. Use warning triangles - place at least 45 metres behind your vehicle on ordinary roads

4. Wear hi-vis clothing when outside the vehicle

5. Stay alert and keep away from the traffic side of your vehicle

Who to Contact

Breakdown Cover

If you have fleet breakdown cover, call your provider immediately. Have ready:

- Your policy or fleet number

- Vehicle registration

- Exact location (use motorway marker posts or what3words)

- Nature of the problem

- Whether carrying dangerous goods

No Breakdown Cover?

- Use Fix My Truck to find local emergency breakdown services

- Contact your fleet operator if company vehicle

- Call Highways England on 0300 123 5000 if blocking a motorway

Police

Only call 999 if:

- There's been an accident with injuries

- You're in immediate danger

- Your vehicle is causing a serious obstruction

While Waiting for Assistance

Do:

- Stay with your vehicle if it's safe and visible

- Keep warm but don't run the engine in enclosed spaces

- Conserve phone battery for essential calls

- Keep passengers together and supervised

Don't:

- Attempt roadside repairs on a motorway

- Walk along the carriageway

- Let passengers or pets wander

- Accept lifts from strangers

If your breakdown is on a smart motorway with no hard shoulder, stay in your vehicle with seatbelts fastened and hazards on until told it's safe to exit by Highways England.

Information to Provide

To get the fastest and most appropriate assistance, provide:

  • Vehicle details: Make, model, registration
  • Location: As precise as possible
  • Problem description: What happened, warning lights, noises
  • Load information: Weight, any time-sensitive goods
  • Dangerous goods: ADR class and UN numbers if applicable
  • Vehicle access: Any keys, codes, or special requirements

The more accurate information you provide, the better equipped the mechanic will be when they arrive.

Preventing Breakdowns

Many breakdowns are preventable with proper maintenance:

Daily Checks

- Walk-around inspection before each journey

- Check lights, tyres, mirrors

- Monitor warning lights on dashboard

Regular Maintenance

- Stick to service schedules

- Address minor issues before they become major

- Keep on top of fluid levels

Common Breakdown Causes

1. Electrical system failures (25%)

2. Engine problems (20%)

3. Tyre issues (15%)

4. Fuel system problems (10%)

5. Cooling system failures (10%)

Regular servicing can identify potential issues before they leave you stranded.

Frequently Asked Questions

How far behind should I place a warning triangle?

On ordinary roads, place a triangle at least 45 metres behind your vehicle. On fast roads, increase this distance. Never use warning triangles on motorways - the risk of being struck while placing them is too high.

Can I repair my truck on the hard shoulder?

Minor repairs like changing a wheel are not recommended on motorway hard shoulders due to the danger from passing traffic. It's safer to call for professional assistance and wait behind the barrier.

What if my truck breaks down blocking a lane?

If you can't move your vehicle, turn on hazard lights, exit safely if possible, and call 999 to report the obstruction. Highways England will dispatch traffic officers to manage the situation.

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