human
What are the steps to changing a flat tire?
assistant
Steps to changing a flat tire: 
1. Park your vehicle on a flat and level surface.
2. Place a wheel Wedge at the front and back of the tires diagonally opposite the flat tire to ensure the vehicle won't roll when you lift it.
3. Loosen the lug nuts with a lug wrench, but do not fully remove them yet.
4. Lift the vehicle with a jack and place jack stands underneath for extra support.
5. Fully remove the lug nuts and set them aside.
6. Remove the flat tire and replace it with your spare tire.
7. Replace the lug nuts and use the lug wrench tighten them in a star pattern to ensure an even grip.
8. Lower the vehicle with the jack and remove the wheel wedges.
9. Tighten the lug nuts again with the lug wrench.
10. Test drive your vehicle on even ground to make sure the spare tire is properly affixed.