Changing a flat tire means removing a damaged or deflated tire from your vehicle and replacing it with a spare tire so you can safely drive to a repair shop. It is one of the most important roadside skills any driver can have, and it does not require any special training or expensive tools.
I am Anthony Calhoun, and I have been an ASE Master Technician for 25 years. In that time, I have changed more tires than I can count, on everything from Honda Civics to F-350 dually trucks. I have also seen what happens when people do it wrong: crushed rocker panels, snapped wheel studs, vehicles falling off jacks, and worse.
This guide is going to walk you through exactly how to change a flat tire the right way. Not the quick-and-dirty version you find in most owner's manuals, but the real deal with the details that keep you safe and keep your car in one piece.
⚠️ WARNING: Do NOT attempt to change a tire on the shoulder of a busy highway or interstate. If you get a flat on a high-speed road and cannot safely exit, pull as far off the road as possible, turn on your hazards, and call for roadside assistance. Every year, people are struck and killed on highway shoulders. No tire is worth your life. Call AAA roadside assistance or your insurance provider's roadside service instead.
Tools You Need to Change a Flat Tire
Before we get into the steps, let's talk about what you need. Most of this should already be in your vehicle, but I am always surprised how many people have never actually checked.
- Spare tire — Either a compact (donut) spare or a full-size spare. Check it right now. Open your trunk or look under your truck and make sure it is there and inflated. I cannot tell you how many times I have seen someone pull out a spare that has been sitting flat for five years.
- Vehicle jack — The scissor jack or bottle jack that came with your car. These are designed for tire changes only, not for working under the vehicle.
- Lug wrench — Usually a cross-shaped (four-way) wrench or an L-shaped wrench. The four-way type gives you much better leverage.
- Wheel chocks — Bricks, large rocks, or purpose-built chocks to prevent the vehicle from rolling.
- Work gloves — Your hands will thank you. Lug nuts can be sharp, brake dust is nasty, and tires are filthy.
- Flashlight or headlamp — Because flats love to happen at night.
- Reflective triangles or flares — Required by law for commercial vehicles and a very smart idea for everyone else.
- Owner's manual — For jack point locations specific to your vehicle.
Pro Tip: I keep a small roadside kit in every car I own. A 12-volt tire inflator (about $30 at any auto parts store), a can of Fix-a-Flat for emergencies, a rain poncho, and a pair of mechanics' gloves. Throw in a small torque wrench if you have one. This kit has saved me and my family more times than I can count.
Step 1: Find a Safe Location
The moment you realize you have a flat, whether you hear the flapping, feel the pull, or see the TPMS warning light come on, slow down gradually and start looking for a safe place to pull over.
What counts as a safe location:
- A parking lot (the best option by far)
- A wide, flat, paved shoulder with good visibility
- A side street with low traffic
- A level driveway
What does NOT count as safe:
- A narrow highway shoulder with cars flying by at 70 mph
- A blind curve where drivers cannot see you
- Soft ground, grass, gravel, or dirt (jacks sink and slip)
- A hill or steep incline
⚠️ WARNING: If your only option is a highway shoulder, stay in your vehicle with your seatbelt on and call for help. According to the National Highway Traffic Safety Administration (NHTSA), hundreds of pedestrians are killed on roadsides every year. Professional tow trucks have flashing lights, arrow boards, and blocking vehicles. You have none of that.
Once you find your spot, turn on your hazard lights immediately. If you have reflective triangles, set them up behind your vehicle: one at about 10 feet, one at about 50 feet, and one at about 100 feet. At night, this is absolutely critical.
Step 2: Secure the Vehicle
Before you touch a single lug nut, you need to make sure this car is not going anywhere.
- Put the transmission in Park (automatic) or first gear (manual transmission).
- Set the parking brake firmly. Pull it hard or press the pedal all the way down. On electronic parking brakes, press and hold the button until you feel it engage.
- Place wheel chocks on the tires diagonally opposite from the flat. If your right front tire is flat, chock the left rear. This prevents the vehicle from rolling when you jack it up.
I know this seems like overkill, but I have personally watched a Chevy Tahoe roll off a jack in a parking lot because the owner forgot the parking brake. It destroyed the brake rotor, bent the control arm, and turned a $150 tire change into a $2,000 repair.
Step 3: Loosen the Lug Nuts (While the Tire Is on the Ground)
This is where most first-timers make their first mistake: they jack the car up and then try to loosen the lug nuts. The tire just spins. You need the weight of the vehicle holding the tire in place while you break the lugs loose.
If your vehicle has a hubcap or wheel cover, pry it off first. Most pop off with the flat end of your lug wrench or a flathead screwdriver.
Now, place the lug wrench on each lug nut and turn counterclockwise. You are not removing them yet, just breaking them free, about a quarter to half turn each.
Pro Tip: If a lug nut will not budge, position the wrench handle so it is roughly horizontal, then carefully stand on it and use your body weight. Bounce gently if needed. This is way more effective than trying to muscle it with your arms. Just make sure the wrench is seated squarely on the nut so it does not slip and round off the corners.
⚠️ WARNING: Never use a pipe or extension (a "cheater bar") on the factory lug wrench. These wrenches are made from thin stamped steel and can bend or break under excessive force. If you cannot break the lugs loose with your body weight, you likely have over-torqued lugs from a tire shop that used an impact gun set too high. Call for help rather than risk breaking a wheel stud.
Step 4: Jack Placement and Lifting the Vehicle
This is the step where the most damage happens when people guess. Every vehicle has specific jack points, and using the wrong spot can crush sheet metal, crack plastic trim, or worse, let the vehicle fall.
Open your owner's manual to the tire change section. There will be a diagram showing exactly where to place the jack. If you do not have the manual, check online. Every manufacturer publishes these for free.
Here is the general rule:
- Unibody cars and crossovers (Camry, Civic, RAV4, CR-V, Altima, etc.): Look for the reinforced pinch weld along the bottom of the rocker panel. It is a doubled-over seam of metal running along the bottom edge of the car between the front and rear wheels. Your jack should grab this pinch weld at the designated spot, which is usually indicated by a small notch or arrow molded into the plastic trim.
- Trucks and body-on-frame SUVs (F-150, Silverado, Tundra, Tacoma, 4Runner, etc.): Jack under the frame rail for the front, and under the rear axle tube or frame for the rear.
- Minivans (Odyssey, Sienna, Pacifica): These use pinch weld points like cars, but they are often located further inboard. The manual is essential here.
Once the jack is positioned correctly, raise the vehicle slowly and steadily until the flat tire is about six inches off the ground. You need enough clearance to get the flat off and the inflated spare on, which is taller.
⚠️ WARNING: Never put any body part under a vehicle supported only by a jack. Factory jacks are designed for quick tire changes, not for sustained support. If the jack fails or the vehicle shifts, there is nothing to catch it. If you need to work under a vehicle, use jack stands rated for the vehicle's weight.
Step 5: Remove the Flat Tire
Now finish unscrewing the lug nuts you already loosened. Remove them and put them somewhere you will not lose them. I always put them in my pocket. I have seen people set them on the ground and then spend ten minutes looking for the one that rolled under the car.
Grab the flat tire with both hands and pull it straight toward you. It should slide right off the hub studs. If it is stuck (this is common, especially in rust-belt states), a few kicks to the bottom of the tire tread usually breaks the corrosion bond between the wheel and the hub. Do not kick the top of the tire or you risk rocking the car off the jack.
Set the flat tire on its side underneath the vehicle near the jack. This is an old mechanic's trick: if the jack fails, the tire provides some protection and prevents the brake rotor from smashing into the pavement. Once the spare is on, move the flat to your trunk.
Step 6: Mount the Spare Tire
Lift the spare tire and line up the holes with the hub studs. This can be awkward, especially with full-size spares that weigh 40 to 50 pounds. Sit on the ground and use your knee or foot to support the bottom of the tire while you guide it onto the studs.
Once the tire is hanging on the studs, push it flush against the hub with one hand and start threading the lug nuts on by hand with the other. Turn them clockwise. Hand-tighten each one before using the wrench.
Pro Tip: Always tighten lug nuts in a star pattern (also called a cross pattern), not in a circle. On a five-lug wheel, think of drawing a star. This ensures the wheel seats evenly against the hub. Tightening in a circle can cause the wheel to sit crooked, leading to vibration and uneven lug loading.
Snug the lug nuts with the wrench, but do not try to fully torque them yet. The tire will spin since it is still off the ground.
Step 7: Lower the Vehicle and Torque the Lug Nuts
Lower the jack slowly until the spare tire is resting on the ground and bearing most of the vehicle's weight, but leave the jack slightly extended so there is still a little support.
Now tighten the lug nuts fully, again using the star pattern. Put some real effort into this. You want them tight, but controlled. Jumping on the wrench or going full gorilla mode can stretch the studs or distort the wheel.
The ideal scenario is using a torque wrench set to your vehicle's specification. I will cover specific torque specs below. If you do not have a torque wrench, tighten them as firmly as you can with the factory wrench and then have them properly torqued at a tire shop within 25 miles.
Now lower the jack completely and remove it from under the vehicle.
Step 8: After the Change — What Most People Forget
You are not done yet. Here is what you need to do next:
- Check the spare tire pressure. Compact (donut) spares should be inflated to 60 PSI. This is printed on the tire itself. Full-size spares should be at the pressure listed on your driver's door jamb sticker. If you do not have a gauge, drive directly to a gas station with an air pump.
- Know your speed and distance limits. Compact spares are rated for a maximum of 50 mph and typically 50 to 70 miles. This is not a suggestion. These tires are smaller, thinner, and have less traction. Driving faster or farther risks a blowout on the spare, which would leave you completely stranded.
- Retorque after 50 to 100 miles. Lug nuts should be rechecked with a torque wrench after the wheel has settled. Most tire shops will do this for free.
- Get the flat repaired or replaced ASAP. A simple nail puncture in the tread can usually be patched for $15 to $30. Sidewall damage means you need a new tire. Do not drive around on a spare for weeks. I see this all the time and it is genuinely dangerous.
- Stow everything. Put the flat tire, jack, and lug wrench back in your vehicle. Pick up your wheel chocks and reflective triangles.
Jack Points by Vehicle Type
I get asked about jack points constantly, so here is a quick reference. This does NOT replace your owner's manual, but it gives you a general idea of what you are looking for.
| Vehicle Type | Front Jack Point | Rear Jack Point |
|---|---|---|
| Sedans (Camry, Civic, Accord, Altima) | Reinforced pinch weld behind front wheel | Reinforced pinch weld ahead of rear wheel |
| Compact SUVs (RAV4, CR-V, Rogue) | Pinch weld, often with a molded notch | Pinch weld or rear subframe |
| Trucks (F-150, Silverado, Ram 1500) | Frame rail behind front wheel | Rear axle tube or frame rail |
| Full-size SUVs (Tahoe, Expedition, 4Runner) | Frame rail | Rear axle or frame rail |
| Minivans (Odyssey, Sienna) | Pinch weld, check manual for exact spot | Pinch weld or rear torsion beam area |
| EVs (Tesla Model 3/Y, Mach-E) | Designated lift pads (use puck adapters) | Designated lift pads (use puck adapters) |
⚠️ WARNING: Electric vehicles like Teslas have battery packs along the underside. Jacking in the wrong spot can puncture or damage the battery, creating a fire risk and a repair bill in the thousands. Always use the manufacturer's designated jack points and battery-safe lift puck adapters.
Lug Nut Torque Specifications
Here are common lug nut torque specs. These are general guidelines. Always verify against your owner's manual or a reliable reference like Tire Rack.
| Vehicle | Torque (ft-lbs) |
|---|---|
| Toyota Camry / Corolla | 76 |
| Honda Civic / Accord | 80 |
| Ford F-150 (aluminum wheels) | 150 |
| Chevy Silverado 1500 | 140 |
| Ram 1500 | 130 |
| Toyota RAV4 / Highlander | 76 |
| Honda CR-V | 80 |
| Nissan Altima / Rogue | 83 |
| Hyundai Tucson / Elantra | 80 |
| Tesla Model 3 / Model Y | 129 |
| Jeep Wrangler | 100 |
| Subaru Outback / Forester | 89 |
Pro Tip: Over-torquing is just as bad as under-torquing. I have seen too many shops crank lug nuts to 150 ft-lbs on a Honda Civic because they set their impact gun on full blast. This stretches the studs, warps the brake rotors, and makes it nearly impossible for you to remove the lugs on the side of the road with a factory wrench. If a shop just changed your tires, ask them to torque to spec. You are paying for the service, and you deserve it done right.
Compact Spare vs. Full-Size Spare: Know What You Have
Not all spares are created equal, and a surprising number of newer vehicles do not come with a spare at all. Here is what you might find:
- Compact spare (donut): Smaller and thinner than your regular tires. Rated for 50 mph max and 50 to 70 miles. Found in most sedans and compact SUVs. Inflate to 60 PSI.
- Full-size spare: Same dimensions as your other tires but often on a cheaper steel wheel. Common on trucks, Jeeps, and some SUVs. No special speed or distance restrictions, but you should still replace it promptly.
- Tire repair kit only: Many newer vehicles, especially EVs and some European models like BMWs and Mercedes, ship with a tire sealant kit and an inflator instead of a spare. These kits work for small punctures but are useless for sidewall blowouts or large damage. If your car only has a sealant kit, consider buying an aftermarket spare tire kit. NHTSA recommends knowing your vehicle's spare tire situation before you need it.
When to Call a Pro Instead
There is no shame in calling for help. Here is when you should skip the DIY approach:
- You are on a highway or high-speed road with no safe place to pull over.
- You do not have a spare tire, or the spare is flat.
- More than one tire is flat. Two flats at once usually means you hit something serious.
- The lug nuts will not budge and you have tried standing on the wrench.
- The ground is soft, muddy, or sloped and you cannot safely support the jack.
- You have a physical limitation that makes it unsafe to crouch, lift, or apply force.
- It is dark, raining, or on a dangerous stretch of road.
- You are not sure where the jack point is and you do not have your owner's manual.
Call AAA, your insurance company's roadside assistance, or a local tow service. Most will arrive in 30 to 60 minutes and handle the whole thing safely.
How to Reduce Your Chances of Getting a Flat
Prevention beats roadside repair every single time. Here is what I tell every customer:
- Check your tire pressure monthly. Under-inflated tires are the number one cause of blowouts. Buy a $5 gauge and spend 60 seconds once a month. The correct pressure is on the driver's door jamb sticker, not on the tire sidewall (that is the maximum rating, not the recommended pressure).
- Inspect your tires visually. Look for nails, screws, bulges, cracks, and uneven wear every time you walk to your car. Catching a nail early means a $20 patch instead of a $200 tire.
- Replace tires before they are bald. The legal minimum tread depth is 2/32 of an inch, but I recommend replacing at 4/32 for rain and 6/32 if you drive in snow. Use the penny test: insert a penny head-first into the tread. If you can see all of Lincoln's head, the tire is done.
- Rotate your tires every 5,000 to 7,500 miles. This evens out wear and extends tire life. Most shops charge $20 to $40 for a rotation.
- Avoid road hazards. Potholes, debris, curbs, and construction zones are tire killers. Slow down and steer around them when safe.
If this kind of hands-on work interests you and you're thinking about turning wrenches for a living, check out our free ASE practice tests to see if you've got what it takes. The automotive trade needs good people, and it all starts with the fundamentals.
Common Mistakes I See Every Week
After 25 years of fixing what other people break, here are the most common tire-change mistakes I see roll into the shop:
- Jacking on the wrong point. Crushed rocker panels, bent pinch welds, cracked plastic trim. This is a $500 to $1,500 body repair.
- Not loosening lugs before jacking. Then fighting a spinning tire six inches in the air. The tire comes loose suddenly and you lose your balance.
- Forgetting the parking brake. The vehicle rolls, the jack tips, and you have a car on the ground with no wheel on it.
- Driving 200 miles at 75 mph on a donut spare. The spare overheats, the tread separates, and now you have two destroyed tires and possible suspension damage.
- Never checking the spare tire pressure. You pull out the spare and it is completely flat. Now you are calling a tow truck anyway, but you wasted 20 minutes finding out.
- Cross-threading lug nuts. Forcing a lug nut on crooked strips the threads on the stud. Now you need a new wheel stud, which means pulling the hub or backing plate. What should have been free is now a $150 repair.
Pro Tip: Once a year, I pull out my spare and check the pressure, inspect the jack, and make sure the lug wrench fits my current wheels (important if you upgraded to aftermarket wheels). I also practice finding my jack points. It takes ten minutes in your driveway and saves a world of stress when it happens for real at 10 PM in a rainstorm.
Frequently Asked Questions
How long does it take to change a flat tire?
For most people, changing a flat tire takes about 15 to 20 minutes once you have a safe spot and all your tools ready. If you have done it a few times, you can finish in under 15 minutes. Your first time might take closer to 30 minutes, and that is perfectly fine. Take your time and get it right.
Can I drive on a flat tire to get to a safer spot?
You can drive slowly for a very short distance, say a few hundred feet, to get off an active highway onto a safer surface. But driving more than that on a completely flat tire will destroy the tire, damage the wheel, and can even damage your brake components and suspension. If you cannot safely move, turn on your hazards and call for roadside assistance.
How fast can you drive on a spare tire?
If you have a compact or donut spare, do not exceed 50 mph. Most compact spares also have a distance limit of 50 to 70 miles. If your vehicle came with a full-size spare, you can drive at normal speeds, but you should still get the flat repaired or replaced as soon as possible since you now have no backup spare.
Which way do you turn lug nuts to loosen them?
Turn lug nuts counterclockwise (lefty-loosey) to loosen them. The only common exception is some older Chrysler vehicles from the 1960s and 1970s that used left-hand threaded lugs on the driver side. On any modern vehicle, counterclockwise is correct for all four corners.
What do I do if my lug nuts are stuck?
First, make sure you are turning the right direction, which is counterclockwise. If they still will not budge, stand on the lug wrench and use your body weight to break them free. You can also try spraying penetrating oil like PB Blaster on the studs and waiting a few minutes. If nothing works, call roadside assistance because forcing it with the wrong tools can snap a wheel stud, which is a much more expensive repair.
Do I need to retorque my lug nuts after putting on a spare?
Yes. After driving about 50 to 100 miles on a newly mounted tire or spare, you should retorque the lug nuts. Wheels can settle slightly against the hub after initial driving, and lug nuts can lose a bit of clamp force. A quick check with a torque wrench takes two minutes and can prevent a wheel from coming loose.
Where is the jack point on my car?
Jack points vary by vehicle. On most unibody cars and crossovers, the jack point is a reinforced pinch weld along the rocker panel just behind the front wheel or just ahead of the rear wheel. On trucks and body-on-frame SUVs, you typically jack under the frame rail or rear axle. Always check your owner's manual for the exact location. Using the wrong spot can crush body panels or slip, dropping the vehicle.
Can I plug or patch a flat tire myself?
Tire plug kits are sold at auto parts stores and can work as a temporary fix for a simple nail puncture in the tread. However, the industry-standard repair is an internal plug-patch combo done from inside the tire. Sidewall damage, large punctures, or gashes cannot be safely repaired. I always recommend having a tire shop do the repair so they can inspect the inside of the tire for hidden damage.
Disclaimer: This guide is provided for informational and educational purposes only. While Anthony Calhoun is an ASE Master Technician with 25 years of professional experience, this content is not a substitute for hands-on professional training. Changing a tire involves inherent risks including vehicle instability, traffic hazards, and physical injury. Always prioritize your personal safety over completing the repair. If you are unsure about any step, have physical limitations, or are in an unsafe location, call a professional roadside assistance service. The author and publisher are not liable for any injury, vehicle damage, or other loss resulting from the use of this information. Torque specifications and jack point locations are general references and may not apply to your specific vehicle. Always consult your owner's manual for vehicle-specific instructions.