How to Change a Tire: A Step-by-Step Guide for Drivers
Changing a flat tire is one of the most practical skills any driver can have. It doesn't require mechanical expertise, but it does require knowing your vehicle, having the right equipment, and following a safe sequence. The process is largely the same across most passenger vehicles — with meaningful variations depending on what you're driving and what's in your trunk.
What You'll Need Before You Start
Before you ever jack up the car, confirm you have everything on hand:
- Spare tire (full-size or compact/temporary)
- Jack (scissor jack or hydraulic floor jack)
- Lug wrench
- Vehicle owner's manual
- Wheel wedges or chocks (optional but safer)
- Reflective triangles or road flares (for roadside safety)
- Flashlight (especially at night)
- Gloves (optional, but practical)
Most vehicles come with a spare, jack, and lug wrench stored under the cargo floor or mounted underneath the vehicle. Some newer vehicles — particularly EVs and certain crossovers — come without a spare at all, relying instead on a tire inflator kit or run-flat tires. Know what your vehicle carries before you're stranded.
Step 1: Get to a Safe Location
Don't stop on the travel lane. Steer gradually toward a flat, stable surface — a parking lot, wide shoulder, or side street. Avoid soft ground, inclines, and anything near live traffic if you can help it.
Once stopped:
- Turn on your hazard lights immediately
- Apply the parking brake
- Place wheel wedges against the tires you're not lifting, if available
- Set out reflective triangles behind the vehicle if you're on a road
Step 2: Loosen the Lug Nuts Before Jacking
This is a step many first-timers get out of order. Loosen the lug nuts while the tire is still on the ground — the vehicle's weight keeps the wheel from spinning.
Turn each lug nut counterclockwise with the lug wrench. Break them loose about one full turn, but don't remove them yet. If they're extremely tight (common on vehicles that haven't had tires rotated recently), you may need to use your body weight on the wrench.
⚠️ Some vehicles have lug nut locks — special anti-theft nuts that require a separate key socket. If yours does and you don't have the key, you won't be able to remove the wheel.
Step 3: Position the Jack Correctly
This is where the owner's manual matters. Every vehicle has designated jack points — reinforced areas of the frame or unibody designed to handle the jack's load. Placing the jack anywhere else can crack plastic trim, bend the body, or cause the vehicle to fall.
Common jack point locations:
- Behind the front wheels or in front of the rear wheels, along the pinch weld or frame rail
- Marked by notches or triangular indicators on the underside of the vehicle
Once positioned, raise the vehicle until the flat tire is roughly six inches off the ground.
Step 4: Remove the Flat, Mount the Spare
Remove the loosened lug nuts completely — keep them somewhere they won't roll away. Pull the flat tire straight off and set it aside.
Mount the spare tire by aligning the holes and pressing it flush against the hub. Thread the lug nuts back on by hand first, in a star or cross pattern (not in a circle), to seat the wheel evenly. Then snug them down with the wrench — again in a cross pattern.
Don't fully torque the lug nuts yet. Tighten them just enough to hold the wheel securely while the vehicle is still jacked up.
Step 5: Lower the Vehicle and Torque the Lug Nuts
Lower the jack until the tire makes full contact with the ground and the vehicle's weight is back on the wheel. Remove the jack.
Now finish tightening the lug nuts in the same star pattern, applying firm, even pressure. If you have a torque wrench and know your vehicle's lug nut torque spec (listed in the owner's manual), use it. Over-tightened lug nuts can warp brake rotors; under-tightened ones can lead to a wheel coming loose.
Step 6: Check the Spare's Pressure and Know Its Limits
Before driving, check the spare tire's air pressure if you have a gauge. Compact spare tires (the small "donut" spares) typically require around 60 PSI and come with strict limits:
| Spare Type | Typical Speed Limit | Typical Distance Limit |
|---|---|---|
| Compact/Temporary | 50 mph | 50–70 miles |
| Full-size matching spare | Normal driving | No restriction |
| Run-flat tire | Varies by manufacturer | ~50 miles at reduced speed |
Driving on a compact spare beyond its limits risks another failure and can affect handling and braking.
Where Individual Situations Diverge
The basic sequence above applies broadly — but what you're working with varies:
- Vehicle type affects jack point location, spare tire type, lug nut count and torque specs, and whether you even have a spare
- Wheel locks require a separate key socket that may or may not be in your vehicle
- EV and hybrid platforms often have different undercarriage configurations that make jack placement less obvious
- Truck and SUV spare tires are frequently mounted underneath the cargo bed and require a separate tool to lower them
- Alloy vs. steel wheels can behave differently when seating against the hub
🔧 The right approach for your specific vehicle — including jack placement, torque specs, and spare tire type — is in your owner's manual. What's parked in your driveway determines exactly how this process plays out.
