A flat doesn't have to strand you. With the spare, jack, and lug wrench that came with your car, most people can change a tire in about 20 minutes. Here's how to do it safely.
What you'll need
- Spare tire
- Jack
- Lug wrench
- Owner's manual
- Wheel wedges or bricks
Step by step
- Get to a safe, flat spotPull well off the road onto level, solid ground. Switch on your hazard lights and set the parking brake. Wedge a brick or wheel wedge against a tire diagonally opposite the flat.
- Loosen the lug nuts firstPry off the hubcap if there is one, then turn each lug nut counter-clockwise about half a turn — while the tire is still on the ground so it can't spin.
- Jack up the carPlace the jack under the reinforced metal frame nearest the flat (your manual shows the exact point) and raise it until the tire is about 6 inches off the ground.
- Remove the nuts and the flatFully unscrew the lug nuts and keep them together. Pull the flat tire straight toward you and set it flat on the ground so it can't roll.
- Mount the spareLine the spare up with the bolts, push it on, and screw the lug nuts back on by hand until snug.
- Lower and tighten in a star patternLower the car until the tire just touches, then tighten the nuts firmly in a criss-cross (star) order. Lower fully and give them one more firm turn.
Handy tips
- Tighten in a star pattern, not a circle — it seats the wheel evenly.
- Check the spare's air pressure as soon as you can, and stow the flat and tools where the spare was.
Heads up
- Never put any part of your body under a car held up only by a jack.
- Most compact 'donut' spares are temporary — keep under 50 mph and get the tire repaired or replaced soon.
FAQ
How tight should the lug nuts be?
Firm and even by hand for now, then have them torqued to the manufacturer's spec at a shop when you get the chance.
How far can I drive on a donut spare?
Usually up to about 70 miles and under 50 mph — check the sidewall for the exact limit.
The lug nuts won't budge — what now?
Use your body weight on the wrench with steady force. If they still won't move, call roadside assistance rather than risk injury.