It always happens at the worst possible moment — a quiet hiss, a sudden pull to one side, and the sinking realisation that you have a flat tyre and no idea what to do next.

Roadside assistance is not always fast, and it is not always free.

Knowing how to change a tyre yourself takes about 30 minutes the first time and gives you a level of road confidence that no amount of driving experience can replace. Here is the complete process, from the moment you pull over to the moment you drive away safely.

<h3>Tools You Need Before You Start</h3>

Every item on this list should already be in your vehicle. If any are missing, address that before you need them on the side of a road.

- Spare tyre — check its pressure regularly; a flat spare is useless in an emergency.

- Jack — the scissor jack that comes with most vehicles works for roadside changes.

- Wheel wrench — the L-shaped or cross-shaped bar used to loosen and tighten wheel nuts.

- Vehicle owner's manual — contains the exact jack placement points for your specific model.

- Reflective warning triangles or flares — place these behind your vehicle before doing anything else.

- Gloves — optional but strongly recommended; wheel nuts and tyres are dirty and sharp-edged.

- Torch — essential if the flat occurs at night.

<h3>Step One: Stop Safely and Prepare</h3>

Pull off the road as far as possible onto a flat, stable surface. Avoid stopping on a slope — a vehicle on a jack on uneven ground is genuinely dangerous. Turn on your hazard lights immediately, apply the handbrake, and if you have them, place warning triangles at least 45 metres behind your vehicle.

If your car has a first gear or a manual transmission, leave it in gear after applying the handbrake. For automatic vehicles, select Park. Place a rock or kerb stone against the tyre diagonally opposite the one you are changing — this prevents any rolling movement while the vehicle is raised.

<h3>Step Two: Loosen the Wheel Nuts Before Jacking</h3>

This step is critical and frequently skipped by first-timers. Loosen each wheel nut by half a turn while the tyre is still fully in contact with the ground. Do not remove them — just break the resistance.

If you try to loosen the nuts after the vehicle is jacked up, the wheel spins freely, and the wrench achieves nothing. With the tyre on the ground, it stays fixed, and the full force of your weight on the wrench does the work.

Turn each nut counterclockwise. If a nut is extremely tight, stand on the wrench arm and use your body weight rather than arm strength alone.

<h3>Step Three: Positioning the Jack Correctly</h3>

This is where most first-time tyre changes go wrong. Placing the jack in the wrong position can damage the vehicle's undercarriage or cause the car to slip off the jack entirely.

Open your owner's manual and locate the jack points — reinforced sections of the vehicle's frame specifically designed to bear the load. They are typically marked by small notches or arrows along the metal sill running beneath the doors. Place the jack head directly under the correct point for the wheel you are changing, never under a plastic body panel or a random section of the floor.

Raise the vehicle until the flat tyre clears the ground by approximately 15 centimetres — enough to remove the flat and fit the inflated spare without the vehicle settling back down as you work.

<h3>Step Four: Remove, Replace, and Tighten in the Right Order</h3>

Remove the loosened wheel nuts completely, keeping them in your pocket or a safe container. Pull the flat tyre straight toward you and set it aside. Lift the spare tyre onto the hub, aligning the holes with the bolts, and hand-tighten each nut as far as possible before using the wrench.

Tighten the nuts in a star pattern — not in a circle. This distributes pressure evenly across the wheel and prevents warping.

- Tighten the top nut first.

- Move to the nut directly opposite — bottom.

- Move to the right nut.

- Move to the nut directly opposite — left.

- Continue in this cross pattern until all nuts are firm.

Lower the vehicle fully, remove the jack, then give each nut a final tightening with the full force of the wrench now that the tyre is back on the ground.

<h3>After the Change: What Most Guides Leave Out</h3>

- Check the spare tyre's pressure as soon as you reach a petrol station — space-saver spare tyres (the narrower temporary ones) are typically inflated to 420 kPa (60 psi), significantly higher than a standard tyre.

- Space-saver spares have a maximum speed limit of 80 km/h and should not be driven more than 80 to 100 kilometres. They are not a permanent solution.

- Have your wheel nuts torqued to the manufacturer's specification at a garage within 50 kilometres of the change — a roadside tightening by hand and wrench is sufficient to get moving, but not a substitute for proper torque.

- Repair or replace the damaged tyre promptly. Driving without a functional spare is a risk no driver should accept.

The first time you change a tyre by the side of the road, it feels like a long and uncertain process. The second time, it feels like something you simply know how to do. That shift — from helpless to capable — is worth more than the 30 minutes it takes to learn. Every driver should know this. Most don't. Now you do.