Changing a Flat Tire Posted On April 27, 2015 Tweet Facebook Gmail Linked In Place the spare tire on the wheel mounts. Once the wheel is on, tighten the lug nuts by hand. You’ll tighten them with a wrench later. Lower the jack until the car is back on the ground, then remove the jack. Use the lug wrench to tighten the lug nuts as firmly as possible. If the lug nuts aren’t tightened firmly, then the wheel could fall off of your car.
