When I got my driving license, my father taught me how to change a tyre. It was really hard work and I never realised a car tyre could weigh so much! I was thankful for the practical lesson, but I hope I never have to use those skills.

If your tyre gets punctured while you are driving, turn on the hazard lights and slowly move your car to the side of the road where it is safe to change the tyre. Try to park the car on level ground.
 
Set up the triangular warning sign about 20 metres in front of your car to warn others that you have stopped for repairs.

Once you've parked, take out the lug wrench, jack and the spare tyre from the trunk.

If you have to park on even a slight incline, try to find a heavy object to wedge up against the good tyres. This will help to keep the car from rolling when you jack it up.

Set the jack up under a solid part of the side of the car, usually next to the flat tyre. Make sure the jack is under something solid that can support the weight of the car.

If the wheel has a hubcap, pry it off with a screwdriver. Once you get the hubcap off, loosen the lug nuts, which are the hexagonal bolts under the hubcap, with the lug wrench.

Start pumping the jack until the flat tyre lifts off the ground. Remove all the lug nuts.

Take the old tyre off and replace it with the spare tyre. Position the tyre so that the holes line up with the lug bolts. Replace the lug nuts and tighten them. Finally put the hubcap back.

Carefully lower the car with the jack until the jack can easily slide out from underneath. Remove the wheel blocks.

Get your original tyre fixed as soon as you can, as the spare tyre is not meant to run like a normal tyre.

Changing the car tyre is hard work and requires physical strength. If you have any doubts about your ability to proceed, call for help before you injure yourself.