How to Handle an HGV Tyre Blowout on the Motorway: A Driver's Guide

Recognising a Tyre Blowout vs. a Slow Puncture

A tyre blowout is a sudden, rapid loss of air pressure that can happen with little to no warning. On an HGV, a rear drive axle blowout typically presents as a loud bang followed by a noticeable pull to one side and increased vibration through the cab. A steer axle blowout is far more dangerous and requires immediate, calm corrective action. A slow puncture, by contrast, will cause a gradual pull to one side over minutes or even hours. Both require immediate attention, but a blowout demands urgent response.

Immediate Actions When an HGV Tyre Blows Out

The instinct to brake hard is understandable but wrong. Sudden braking after a blowout can cause the vehicle to jackknife, especially on wet roads. The correct procedure is: grip the steering wheel firmly with both hands, maintain your current speed initially to stabilise the vehicle, gradually decelerate by lifting off the accelerator — do not use the brakes until the vehicle is under control, steer smoothly to compensate for the pull, and only then progressively apply gentle braking to bring the vehicle to a safe stop.

Getting to Safety on the Motorway

Once you have control of the vehicle, signal left and move toward the hard shoulder as smoothly as possible. If you cannot safely reach the hard shoulder, activate your hazard lights immediately and try to get to the left lane. Never stop in an active traffic lane. Once on the hard shoulder, drive as far left as possible, angling the front wheels away from traffic. Place the emergency triangle at least 45 metres behind the vehicle. If on a smart motorway without a hard shoulder, exit at the next emergency refuge area if at all possible.

Calling for Emergency HGV Tyre Assistance

Once you and your vehicle are safe, call your fleet manager and your mobile tyre fitting service immediately. Provide your precise location — use the motorway marker posts which are every 100 metres, or the what3words app for precise coordinates. Have your vehicle registration, axle configuration, and tyre size information ready if possible, as this helps mobile tyre fitters bring exactly the right tyre to your location. Our 24/7 emergency HGV tyre service guarantees arrival within 60 minutes on major UK motorways.

After the Incident: What Fleet Managers Need to Know

Every tyre blowout should be formally recorded in your fleet maintenance log. Retain the failed tyre for inspection — in some cases, blowouts are caused by manufacturing defects that may be subject to warranty claims. Review whether incorrect tyre pressure, overloading, or kerbing damage may have contributed to the failure. Use each incident as a learning opportunity to strengthen your preventative maintenance programme and reduce the risk of future HGV tyre emergencies.