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Maintenance & Care · Spares and emergencies

What to Do If You Get a Puncture

By Priya Nair Reviewed byStephen Rhodes and Hannah ColeUpdated 26 June 2026 · 2 min
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The short version. A slow flat and a sudden blowout need different responses. How to keep control, get safely stopped, and weigh up the spare, the sealant kit.

A puncture can arrive as a slow, sinking softness or a sudden bang, and the two need a different response. In both cases the goal is the same, keep control and get safely stopped, before thinking about the fix.

A sudden blowout

A blowout at speed is alarming but manageable if the instinct to brake and swerve is resisted:

  • Hold the wheel firmly with both hands and keep the car pointing straight
  • Ease off the accelerator and let the car slow on its own
  • Do not brake hard: sudden braking can pull the car off line
  • Once slowed and under control, signal and steer gently to a safe stop

The car will pull towards the failed tyre, so a steady grip and a gradual slowdown are what keep it straight. Hard braking or a sharp steering input is what turns a blowout into a bigger problem.

A slow puncture

A slow flat, a tyre going soft, the car pulling slightly, or a pressure warning, is less dramatic but still needs a prompt, safe stop:

  • Pull over somewhere firm, level and well clear of traffic
  • Do not carry on in the hope of reaching home, driving on a flat ruins the tyre and can damage the wheel
  • Assess the tyre once safely stopped

Getting safely stopped

Wherever possible, choose firm, level ground away from moving traffic, not a live motorway lane. On a motorway, that means the hard shoulder or, on a smart motorway, the next emergency refuge area, with everyone out and behind the barrier. A good stopping spot makes everything that follows safer.

Weighing the options

Once stopped, the fix depends on the damage and what the car carries:

  • Fit the spare, if there is one, following the wheel-change steps
  • Use the sealant kit for a small tread puncture, within its limits
  • Limp on run-flats to a garage if the car has them
  • Call breakdown recovery: always the right call if the location is unsafe, the damage is beyond a spare or kit, or there is any doubt

If the car has none of the self-help options, knowing the choices when there is no spare in advance saves a stressful decision at the roadside.

From the workshop: the blowout advice that saves people is "don't stamp on the brake". Every instinct says brake and pull in fast, and that's exactly what loses control. Hold it straight, lift off, let it slow. The tyre's already gone, there's no prize for stopping quickly, only for stopping safely.

Sources and accuracy. The safety guidance here reflects standard advice at the time of writing. In any unsafe situation, calling for professional assistance is the right choice. If anything here looks wrong, get in touch and we will check it and put it right.

Common questions

What should you do if you get a puncture while driving?+

Hold the steering wheel firmly, ease off the accelerator and let the car slow gradually, do not brake hard or swerve. Once it is under control and slow, signal and pull over somewhere safe and level, well away from traffic, then assess the tyre.

What do you do in a tyre blowout?+

Grip the wheel firmly with both hands to keep the car straight, lift off the accelerator, and avoid braking hard, which can make it worse. Let the car slow on its own, then steer gently to a safe stop off the road.

Can you drive on a flat tyre?+

No further than absolutely necessary to get off the road safely. Driving on a flat quickly destroys the tyre and can damage the wheel and even the car, so the priority is a safe stop, not reaching a destination.

What are my options after a puncture?+

Depending on what the car carries: fit the spare, use the sealant kit for a small tread puncture, limp on run-flats to a garage, or call breakdown recovery. The choice depends on the damage and what the car is equipped with.