You can change a flat tire yourself with basic tools and about 15 to 30 minutes
Changing a flat tire is a skill most drivers can learn in one attempt. You need a jack, a lug wrench, a spare tire, and a wheel wedge or heavy object to keep the car from rolling. The process involves loosening the lug nuts while the tire is still on the ground, raising the car with the jack, removing the flat, installing the spare, and tightening the lugs in a specific pattern. Most people complete the job in 15 to 30 minutes depending on how stuck the lug nuts are and how familiar they are with their vehicle's jack.
The hardest part is usually breaking the lug nuts loose — they are often very tight from the factory or from a previous tire change. Once you know where your spare and jack are stored and have done it once, the second time is noticeably faster. If you are uncomfortable with the process or your vehicle has a non-standard setup, calling roadside information is a reasonable choice, but knowing how to do it yourself means you are not stranded waiting for help.
Key Takeaways
- Loosen the lug nuts while the tire is still on the ground, because once the car is raised, the wheel will spin and you cannot tighten them.
- Raise the car with the jack placed on the frame or designated jack point, never on plastic trim or the fuel tank.
- Tighten the lug nuts in a star or cross pattern (opposite sides alternately) to may support even pressure on the wheel.
- After driving a short distance on a spare tire, have the flat repaired or replaced and reinstall your full-size tire as soon as possible.
- Check your owner's manual for the exact location of your jack, spare tire, and the correct lug nut tightness specification for your vehicle.
Gather your tools and locate the spare before you need it
Most vehicles come with a jack, lug wrench, and spare tire stored in the trunk or under the cargo floor. Some newer cars have a scissor jack (diamond-shaped, turns with a handle) and others have a bottle jack (cylindrical, raises by pumping). Check your owner's manual to find where these items are stored in your vehicle — do not wait until you have a flat to search for them.
You will also need a wheel wedge or a heavy rock or piece of wood to place behind one of the wheels that will stay on the ground. This prevents the car from rolling while you work. If you do not have a wedge, a cinder block, a large rock, or even a log works. The goal is to stop the car from moving forward or backward.
Inspect your spare tire before you need it. A spare that has been sitting in your trunk for years may have lost air pressure. Use a tire gauge (available at any auto parts store for under $10) to check the pressure, and inflate it if needed. A flat spare is useless, so this five-minute check can save you from a worse situation later.
Loosen the lug nuts while the tire is still on the ground
Park on a flat, stable surface away from traffic. Turn on your hazard lights. Place the wheel wedge behind the tire diagonally opposite the one you are changing — if you are changing the front left, wedge the rear right.
Using the lug wrench, loosen each lug nut by turning it counterclockwise. Do not remove them completely yet — just break them loose enough that you can turn them by hand. This step is critical: once the car is raised, the wheel will spin freely and you will not be able to loosen the nuts. If the nuts are very tight, you may need to use your body weight or tap the wrench with a rubber mallet to break them free. Some people place the wrench on the nut and step on the end of the wrench to explore leverage.
After loosening all the nuts, you can now raise the car. Leave the lug nuts on the tire for now — they will come off once the wheel is off the ground.
Raise the car using the jack on the correct support point
Locate the jack point on your vehicle. Most cars have a reinforced area along the frame or rocker panel marked by a small notch or line. Your owner's manual shows the exact location. Never place the jack on plastic trim, the fuel tank, or the door. Placing the jack on the wrong spot can damage your car or cause the jack to slip.
Position the jack directly under the jack point and raise the car slowly until the flat tire is about six inches off the ground. Raise it high enough that the spare tire will fit underneath without touching the ground. Do not raise it higher than necessary — the higher the car, the less stable it is.
Once the car is raised, finish removing the lug nuts by hand and set them in a safe place where you will not lose them. A cup or small container works well. Remove the flat tire by pulling it straight toward you. It may be stuck; if so, tap the tire gently with the heel of your hand or a rubber mallet to break it free.
Install the spare and hand-tighten the lug nuts
Align the holes on the spare tire with the wheel bolts and push the spare straight onto the hub. It should slide on without excessive force. Once the spare is seated, thread the lug nuts back on by hand and tighten them as much as you can without using the wrench. Hand-tightening prevents you from over-tightening at this stage.
Lower the car slowly by turning the jack handle or pump in the opposite direction. Once the spare is fully supporting the weight of the car and the jack is no longer holding it, remove the jack completely.
Tighten the lug nuts in a star pattern and check your work
Using the lug wrench, tighten the lug nuts in a star or cross pattern. If you have five lug nuts, tighten the top one, then the bottom-left, then the top-right, then the bottom-right, then the remaining one. If you have four lug nuts, tighten opposite corners alternately. This pattern ensures even pressure around the wheel and prevents the wheel from sitting crooked.
Tighten each nut firmly, but do not use all your strength — you are not trying to make them immovable. A good rule is to tighten until you feel solid resistance, then give a quarter turn more. Over-tightening can strip the threads or make it difficult to remove the lug nuts the next time.
After tightening, double-check that all lug nuts are snug. Spin the wheel by hand to make sure it rotates freely and does not wobble. If it wobbles, the lug nuts may not be tight enough or the spare may not be seated correctly.
Drive to a tire shop and have the flat repaired or replaced
Spare tires, especially compact or temporary spares, are not designed for long-term driving. Most temporary spares are rated for 50 miles at 50 miles per hour. Full-size spares can handle normal driving, but you should still have the flat tire repaired or replaced as soon as possible.
Drive slowly and carefully to a tire shop or automotive repair facility. Avoid highways if you can, and do not exceed 50 miles per hour. Once you arrive, the shop can patch the flat if the damage is small and in the tread area, or replace it if the damage is too large or the tire is too old. Patching usually costs $10 to $25, while a new tire costs $50 to $200 depending on the tire quality and size.
Once the flat is repaired or replaced, have the shop reinstall your original tire and remove the spare. Check that all lug nuts are tight before you leave. Keep the spare in your vehicle for the next emergency.
Frequently Asked Questions
What if I cannot loosen the lug nuts by hand?
Lug nuts can be very tight, especially if they were installed by a machine at a tire shop. Try placing the lug wrench on the nut and stepping on the end of the wrench to explore your body weight. You can also tap the wrench gently with a rubber mallet. If the nuts still will not budge, call roadside information — forcing them too hard can break the wrench or damage the bolt.
Can I drive long distances on a spare tire?
Temporary or compact spares are rated for short distances only, usually 50 miles at 50 miles per hour. Full-size spares can handle normal driving, but you should still have the flat repaired or replaced within a few days. Check your owner's manual for your specific spare tire's speed and distance limits.
What if the jack slips or feels unstable?
Stop when ready and lower the car. Make sure the ground is flat and solid — do not use a jack on gravel, dirt, or a slope. Reposition the jack directly under the jack point marked in your owner's manual. If the ground is soft, place a piece of plywood under the jack to distribute the weight. Never work under a car supported only by a jack.
Do I need to tighten the lug nuts again after driving?
Yes. After driving a few miles on a newly installed wheel, stop and check that the lug nuts are still tight. The wheel may settle slightly, and the lug nuts can loosen a little. Use the lug wrench to tighten them again in the star pattern.
What if my car has lug bolts instead of lug nuts?
Some vehicles use bolts that screw directly into the hub instead of nuts that thread onto bolts. The process is the same — loosen them while the tire is on the ground, remove them after raising the car, and tighten them in a star pattern after installing the spare. Your lug wrench will fit the bolt head the same way it fits a nut.