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A flat tire change is a roadside service where a technician removes the damaged wheel and fits your spare so you can drive to a tire shop. It is simple in principle, but changing a wheel next to traffic, on a slope or with seized lug nuts is where people get hurt. That is why many drivers call for help even when they have the tools.
When you need help with a flat
- You are on a highway shoulder or a narrow road where working beside the car isn’t safe.
- The lug nuts are too tight, or you don’t have the wheel-lock key.
- The jack or spare is missing, or you aren’t sure how to use them.
- More than one tire is damaged, so a single spare won’t do.
Check your spare first
Many newer cars come without a spare and carry a sealant and inflator kit instead. Some have run-flat tires. Others have a compact “donut” spare that is meant only for limited speed and distance. Look in the trunk floor, under the cargo area or under the vehicle before you call, and tell the provider what you find. If there is no usable spare, a tire change becomes a tow, and it’s better to know that before a truck is dispatched.
When a tow is the better choice
- There is no spare, or the spare is also flat.
- The wheel, rim or suspension is damaged, not just the tire.
- You hit something hard and the car pulls, vibrates or shows warning lights.
- The car has run-flat tires and has already used up their limited range.
For cars that need special handling when towed, such as AWD vehicles or EVs, see our guide to vehicle weight and towing methods.
What affects the cost
A tire change is usually priced as a service call. Location, time of day, and problems like a missing lock key or a stuck wheel can change the price. A tire repair or new tire is separate and is usually done at a shop. Some insurance policies and roadside memberships cover tire changes. Our tow truck cost guide explains how that coverage usually works.
What to have ready
- Exact location and which side of the car has the flat.
- Year, make and model.
- Whether you have a spare, a jack, a lug wrench and a wheel-lock key.
- Whether the car is on level ground or a slope.
Safety tips
- Slow down gradually and pull as far from traffic as you can. Driving a short distance to a safer spot on a flat is often better than stopping in a lane, though it can damage the wheel.
- Turn on hazards and set the parking brake.
- On a highway, get out on the side away from traffic and wait behind a barrier if there is one.
- Never get under a car supported only by a jack.
- After the change, check the spare’s pressure and respect any speed or distance limit printed on it.
Frequently asked questions
Many newer cars have a sealant kit or run-flat tires instead. If neither will get you to a shop safely, ask for a tow rather than a tire change.
Most roadside calls are for fitting your spare. Some providers offer temporary plugs or inflation, but a proper repair or replacement is usually done at a tire shop.
Compact spares are meant for limited speed and distance. Check the label on the spare and your owner’s manual for the exact limits.
Some providers can remove locking lug nuts and some can’t. Mention it in your request so they can tell you before coming out.
Stuck with a flat? Tell us where you are and what you drive, and we’ll pass your request to independent providers nearby.