What happens when you need a new car key

A new car key comes from one of three places: your car's dealership, a locksmith, or a hardware store — and which one you use depends on your car's age, the type of key, and how much you want to spend. Dealerships have your car's records and can make keys that work with your specific vehicle's security system, but they charge the most. Locksmiths are faster and cheaper for older cars. Hardware stores can cut basic keys on the spot for the lowest price, but only if your car uses a straightforward mechanical key without electronic components.

The real cost difference comes down to whether your key has a chip inside it. A basic metal key costs $10 to $30 to cut. A key with an electronic chip or remote functions costs $200 to $500 at a dealership, $100 to $300 at a locksmith, and cannot be made at a hardware store. Before you call anyone, check your car's manual or call the dealership to find out what type of key your car uses.

Key Takeaways

  • Dealerships have your car's security records and can make any type of key your car needs, but charge two to five times more than other options.
  • Locksmiths can cut basic keys and program electronic keys faster and cheaper than dealerships, though you should verify they work with your car's make and model.
  • Hardware stores can cut straightforward metal keys in minutes for $10 to $30, but cannot make keys with chips or remote functions.
  • Electronic keys with chips or remotes cost $200 to $500 at a dealership and $100 to $300 at a locksmith, while basic keys cost $10 to $30 regardless of where you go.

Dealership key replacement: when to use it

Go to your car's dealership if your key has a remote, a chip, or a push-button start, or if you have lost all your keys and need the car reprogrammed. Dealerships have access to your vehicle identification number (VIN) in their system and can order or cut a key that will work with your car's security system on the first try. They can also reprogram your car's computer if you have lost every key, which prevents someone else from starting your vehicle with a blank key.

Call the dealership's parts department or service department with your VIN and ask for a price quote before you go in. Bring your driver's license and proof of ownership (your registration or title). The dealership will verify that you own the car before making the key. Turnaround time is usually one to three days if they have the key in stock, or up to two weeks if they need to order it from the manufacturer.

Locksmith key replacement: faster and cheaper for most cars

A locksmith can cut and program most car keys in 30 minutes to two hours, and will come to your location if you are locked out. Locksmiths charge $100 to $300 for electronic keys and $15 to $40 for basic keys, which is significantly less than a dealership. However, not all locksmiths work on all car makes — call ahead and confirm they have worked on your specific year, make, and model before you schedule an appointment.

When you call a locksmith, have your VIN ready and tell them whether your key has a remote or chip. Ask whether they can program the key at your location or whether you need to bring the car to their shop. If you are locked out of your car, some locksmiths will unlock the door and cut a key in one visit. Bring your driver's license and proof of ownership so the locksmith can verify you own the vehicle.

Hardware store key cutting: the cheapest option for basic keys

If your car is older and uses a straightforward metal key with no remote or chip, a hardware store can cut a replacement key while you wait for $10 to $30. Bring your original key or a photo of it, and the store will use a key-cutting machine to duplicate it. This works only for mechanical keys — if your key has a plastic head, a remote button, or any electronic component, a hardware store cannot help you.

The advantage is speed and price. The disadvantage is that a hardware store employee cannot verify whether the key will work with your car's locks, so you will not know if it works until you try it at home. If the cut key does not work, most stores will recut it for free or give you a refund.

What to do if you are locked out of your car

If you need a key when ready and cannot get to a dealership, call a locksmith. Locksmiths can unlock your car door and cut a new key in one visit, usually within 30 minutes to an hour. They charge a service call fee (typically $50 to $100) plus the cost of the key itself. If you have roadside information through your insurance or a membership program like AAA, call them first — they often cover locksmith costs or can refer you to a preferred locksmith.

Do not try to break into your own car or force the lock open, as this can damage the door frame, lock mechanism, or window. A locksmith's fee is cheaper than repair costs. If you are in a safe location, you can also call a family member or friend to bring you a spare key, or call a taxi or rideshare service to get home and retrieve a spare.

Programming a new key at home versus at the shop

Some car models allow you to program a new key yourself using a sequence of steps with the ignition and door locks, while others require professional programming equipment. Check your car's manual or search online for your specific year, make, and model plus "self-program key" to see if your car supports this. If it does, the manual will walk you through the exact steps, which usually take five to ten minutes.

If your car does not support self-programming, you must have the key programmed by a locksmith or dealership. This requires connecting a computer to your car's diagnostic port and uploading the new key's code to your vehicle's security system. You cannot do this at home without specialized equipment. Budget an extra 30 minutes to an hour for programming time, in addition to the time it takes to cut the key.

Keeping spare keys and preventing lockouts

Make a spare key now, while you still have one, and keep it in a safe place at home — not in your car or wallet. If you have an electronic key, a spare costs the same as a replacement and takes the same amount of time to make. Having a spare at home means you can get into your car without calling a locksmith if you lose your main key or lock it inside.

Consider keeping a spare key with a trusted family member or friend who lives nearby, so you have a backup if your home spare is also unavailable. If you travel frequently or live far from a locksmith, keeping two spares is reasonable insurance against a costly emergency lockout.

Frequently Asked Questions

How much does a car key replacement cost?

A basic metal key costs $10 to $30 at a hardware store or locksmith. An electronic key with a chip or remote costs $100 to $300 at a locksmith or $200 to $500 at a dealership. Dealerships charge more because they have your vehicle's security records and can reprogram your car if needed.

Can I use a key from a different car that looks the same?

No. Even if two keys look identical, they are cut to fit specific lock pins inside your car's doors and ignition. A key cut for a different car will not turn the locks. Electronic keys are even more specific — a key from a different car will not communicate with your car's security system.

What do I need to bring when I get a key made?

Bring your driver's license and proof of ownership (registration or title). If you still have your original key, bring it so the locksmith or dealership can verify the key type. If you do not have the original, bring your VIN, which is on your registration and on a sticker inside your driver's side door frame.

How long does it take to get a new car key?

A hardware store can cut a basic key in 5 to 10 minutes. A locksmith can cut and program an electronic key in 30 minutes to two hours. A dealership usually takes one to three days if they have the key in stock, or up to two weeks if they need to order it from the manufacturer.

What if my car has a push-button start instead of a key slot?

Push-button start cars use a key fob that communicates with the car wirelessly. You must go to a dealership or a locksmith who specializes in electronic keys — a hardware store cannot help. The fob costs $200 to $500 at a dealership and $100 to $300 at a locksmith, and requires programming to your specific vehicle.