You’ve got the spare out and the wrench on the first lug nut, and it won’t budge. Stuck lug nuts are one of the most common reasons a tire change stalls on the side of the road. Most of the time, it’s about technique, not strength.

Safety First

• Pull well off the road onto flat, solid ground and turn on your hazard lights.
• Set the parking brake and put the car in Park (or in gear for a manual).
• Block the tire diagonally opposite the flat with a wheel wedge or a large rock.

Loosen Them Before You Jack Up the Car

This is the big one. With the tire still on the ground, it can’t spin while you push on the wrench. Break each lug nut loose about a half turn first, then raise the car. If you’ve already jacked it up, lower it back down before you try again.

Turn the Right Way

Facing the wheel, turn the wrench counterclockwise to loosen. It sounds obvious, but on a stubborn nut it’s easy to get turned around.

Use Leverage, Not Muscle

Position the wrench so the handle points to the side, roughly level with the ground. Then press down on the far end of the handle with steady force. If your arms can’t do it, carefully put your foot on the end of the handle and push down with your body weight while holding onto the car for balance. Don’t jump on it; the wrench can slip and send you down hard.

A longer handle makes a big difference. A breaker bar or a four-way lug wrench gives you far more leverage than the short wrench that comes with most cars.

Check for a Locking Lug Nut

If one nut has an odd pattern on its face, it’s a wheel lock. It only comes off with a matching key, a small socket usually kept in the glovebox, the center console, or with the spare tire and jack.

Still Stuck?

A spray of penetrating oil on the threads, left to soak for 10 to 15 minutes, can help with rust. Never use heat or a flame near a tire. If a nut starts to strip or round off, stop and call roadside assistance before it gets worse.

After the Spare Is On

Tighten the nuts in a star pattern, not around in a circle, so the wheel sits evenly. Then have them checked with a torque wrench after a short drive, since nuts can settle. Most temporary spares also have speed and distance limits, printed on the tire or in your owner’s manual.

My guide walks you through changing a flat tire, step by step.

Get the full guide: How to Change a Flat Tire by Hank Palmer, on Amazon