Below the chassis, near the wheel, there is a bump, just push on it. Steps to change the spare tire 1. Some cars have a hub cover, which needs to be removed first to loosen the nut and can be removed with a wrench. 2. Support the jack in the slot where the jack is placed under the car. Shake the rocker arm of the jack clockwise and the jack will stand up. The jack only needs to be pushed under the car. 3. Loosen the wheel screw with a socket wrench, but do not remove it. It should be noted that counterclockwise means loosening and clockwise means tightening. 4. Continue to shake the jack rocker arm to support the jack until the wheel is about 5 cm off the ground. 5. Continue to loosen the screw, unscrew the screw and unload the tire. 6. Take out the spare tire, put it on the wheel hub, and put the newly removed tire in. 7. Reinstall the conical surface of the nut facing the rim, install and tighten the screws by hand, then lower the jack to make the tire touch the ground, and then tighten the tire screws one by one with a socket wrench. Screws should follow diagonal sequence. People who are weak can step on every screw with their feet. 8. Then put the wheel cover or wheel hub cover back in its original place, put the tools away, put the replaced tires in the trunk, and you can continue on the road.