Small commercial vehicles—whether used for deliveries, trades, or business operations—are vital to many Irish businesses. However, they also pose fire risks due to fuel, electrical systems, and the cargo they carry. Fires in vehicles can spread quickly, putting drivers, passengers, and nearby property at risk.

Here’s what you need to know about fire risks in small commercial vehicles, how to prevent them, and what to do in an emergency.

What Causes Fires in Small Commercial Vehicles?

Electrical Faults – Damaged wiring, faulty batteries, or overloading electrical systems (e.g., running multiple devices from a single socket) can cause sparks and fires.

Fuel Leaks – Petrol, diesel, or even oil leaks from a damaged engine or fuel line can ignite with a single spark.

Overheated Engines – Engines running hot due to lack of maintenance or low coolant levels can cause components to ignite.

Cargo Hazards – If transporting flammable materials (paint, fuel, chemicals), poor storage or spills can increase fire risks.

Smoking in Vehicles – Carelessly discarded cigarettes or lighters left in hot conditions can start fires.

Poor Maintenance – Blocked exhausts, worn-out parts, and overheating brakes can lead to fire hazards.

Lithium-ion batteries – In electric vehicles, overheating or damage to lithium-ion batteries can lead to thermal runaway, a dangerous condition where the battery heats up uncontrollably and catches fire.

How to Prevent Fires in Small Commercial Vehicles:

Perform Regular Maintenance

Schedule frequent vehicle checks to ensure wiring, fuel lines, and exhausts are in good condition. Keep the engine clean and free of oil leaks.

Check Electrical Systems
Avoid overloading your battery with excessive gadgets, heaters, or inverters. If you notice flickering lights or a burning smell, get the vehicle inspected immediately.

Store Flammable Materials Safely
If transporting fuels, chemicals, or aerosols, secure them in approved containers and keep them well-ventilated. Never store flammable items in direct sunlight.

Keep a suitable Fire Extinguisher in the Vehicle
A 2kg or 3Kg Dry Powder fire extinguisher is useful for tackling small fires before they spread.

Avoid Smoking in the Vehicle
Smoking inside or around the vehicle can cause fires, especially if near fuel, upholstery, or cargo.

Monitor Engine Temperature
If your temperature gauge is rising, pull over safely and let the engine cool. Never ignore overheating signs.

Check Fuel & Oil Levels Regularly
Leaks from fuel lines or oil spills near the engine are a major fire risk. If you smell fuel inside the cab, stop the vehicle immediately and investigate.

For more information on maintaining your commercial vehicle visit RSA

https://www.rsa.ie/services/business-operators/maintaining-your-vehicles/vehicle-safety-checks

What to Do If a Fire Starts in Your Vehicle

1.Stop the Vehicle Immediately

If you see smoke or flames, pull over safely, turn off the engine, and exit the vehicle.

2.Turn Off the Ignition

Cutting power can help prevent electrical fires from spreading.

3.Call Emergency Services by dialling 112 or 999

4.Grab the Fire Extinguisher (If Safe to Do So)
Use a suitable fire extinguisher such as a Dry Powder but only if the fire is small and manageable and you have been trained to do so.

5.Keep a Safe Distance
If flames are spreading, move at least 30 metres away from the vehicle.

6.Do NOT Open the Bonnet Fully
If an engine fire starts, only open the bonnet slightly—a sudden rush of oxygen can make flames worse. Aim the extinguisher through the gap.

7.Never attempt to fight an EV Fire

In the event of a Lithium – Ion battery fire, we do not recommend that you attempt to fight it. Lithium – Ion fires can be extremely difficult to control with the batteries also prone to explosion. Whilst there are some Lithium – Ion Fire Extinguishers available on the Irish market, they have yet to be approved by Irish Standards. Our current advice is to evacuate the car, remain at a safe distance and let emergency services handle it.

Essential Fire Safety Equipment for Small Commercial Vehicles

2kg or 3 Kg Dry Powder Fire Extinguisher – Ideal for tackling engine, fuel, and electrical fires.

Fire Blanket – Useful for smothering small flames inside the cab.

First Aid Kit – Essential for treating minor burns or injuries.

Final Thoughts: Stay Safe on the Road

Fires in small commercial vehicles can spread fast, so prevention is key. Regular vehicle checks, proper fire safety equipment, and knowing what to do in an emergency can save lives.

Stay safe and keep your business moving!

Be Smart. Be Prepared. Be Safe.