Where to get a replacement car key depends on your car's age and key type
You have three main routes: a dealership, a locksmith, or a big-box retailer like Home Depot or Walmart. Which one makes sense depends on whether your car has a basic metal key, a key fob that locks and unlocks remotely, or a smart key that starts the engine without turning anything. Dealerships charge the most but handle every key type. Locksmiths are usually cheaper and faster. Retailers are cheapest for straightforward metal keys but cannot handle fobs or smart keys on most vehicles.
The year your car was made matters more than you might think. Cars made before 2000 almost always use a straightforward cut key that any locksmith can copy in minutes. Cars from 2000 onward increasingly use fobs or smart keys that require programming, which narrows your options and raises the cost.
Key Takeaways
- Dealerships can replace any key type but typically charge $200 to $500 per key, and you must bring proof of ownership.
- Locksmiths usually cost $50 to $200 and can handle most key types, but call ahead to confirm they work on your car's year and model.
- Home Depot and Walmart can cut basic metal keys for $2 to $10, but cannot program fobs or smart keys on most vehicles.
- You will need your Vehicle Identification Number (VIN), which appears on your registration and on the dashboard under the windshield on the driver's side.
- If you have only one key left, replace it before you lose that one — being locked out costs more than replacement.
Getting a replacement at a dealership
The dealership is the safest choice if your car has a smart key or if you are unsure what type of key you have. Bring your driver's license, vehicle registration, and proof that you own the car (the title or a recent insurance document). The service desk will order the key, program it to your vehicle, and test it before you leave. This process usually takes one to three hours if they have the key in stock, or several days if they must order it.
Cost varies widely by manufacturer. A basic key fob replacement at a Ford or Chevy dealership might run $150 to $250. A smart key for a luxury brand like BMW or Mercedes can cost $300 to $500. Ask for the exact price before they order the key — dealerships are required to tell you, and prices do not vary by location within the same brand.
One advantage: if you have only one key and lose it, the dealership can retrieve your vehicle's programming history and create a new key that works when ready. A locksmith cannot always do this without the original key present.
Using a locksmith for faster, cheaper replacement
A mobile locksmith will come to your car, your home, or your workplace and cut and program a key on the spot. This is usually faster and cheaper than a dealership. Expect to pay $50 to $150 for a basic key fob, or $100 to $200 for a smart key. Call before you book — not every locksmith handles every car brand, and some specialize in older vehicles.
When you call, have your car's year, make, and model ready. Ask whether they can program the key type you need and whether they charge extra for mobile service (many do, typically $25 to $50). Confirm the total price before they arrive. Most locksmiths accept cash or card and can be there within an hour in urban areas, though rural response times vary.
The trade-off: if your car is very new or uses an encrypted smart key system, some locksmiths cannot access the programming data without the original key. If you have lost your only key, ask the locksmith whether they can work without it. If they cannot, you will need the dealership.
Cutting a basic metal key at a retailer
Home Depot, Walmart, and most hardware stores have key-cutting machines and can duplicate a basic metal car key for $2 to $10. Bring your original key and ask the associate to cut a copy. The machine takes about two minutes. This works only for cars with straightforward keys — no fobs, no remote locks, no push-button start.
This is the cheapest option, but it has a hard limit: if your car was made after 2000 and uses a fob or smart key, the retailer cannot help. The machine can cut the metal part, but it cannot program the electronics. A cut-only key will not unlock or start your car.
One useful strategy: if you have a working fob and only need a spare metal key for emergencies (to unlock the door if the fob battery dies, for example), a retailer can cut that spare for you. Keep it in your wallet. But you still need a working fob to start the engine.
What information you need before you call
Have these details ready before you contact a dealership, locksmith, or retailer. Your car's year, make, and model — this is on your registration and on the dashboard. Your Vehicle Identification Number (VIN), which is a 17-character code on your registration, insurance card, and on the dashboard under the windshield on the driver's side. A photo of your driver's license and vehicle registration.
If you are calling a locksmith, also have your address or the address where you want them to meet you. If you are going to a dealership, bring your driver's license and registration in person — they will not process a key order over the phone without seeing your ID.
What happens if you have lost your only key
If you have lost your only key and cannot start or unlock your car, you have two options: call a locksmith or call the dealership. A locksmith will arrive faster and cost less, but they may not be able to program a new key without the original. Call first and describe your situation — some locksmiths keep master programming devices for common car brands and can work around this.
If the locksmith cannot help, the dealership can. Bring your driver's license, registration, and proof of ownership. They will verify that you own the car, then create a new key from the vehicle's programming records. This takes longer (usually one to three days) and costs more ($200 to $500), but it always works.
To avoid this situation, replace a key before you lose it. The cost of replacement is a fraction of the cost of being locked out and needing emergency service.
Comparing cost and time across your options
| Option | Cost Range | Time to Complete | Best For |
|---|---|---|---|
| Dealership | $150–$500 | 1–3 hours (or several days if ordered) | Smart keys, lost-only-key situations, luxury vehicles |
| Mobile locksmith | $50–$200 | 30 minutes to 2 hours | Fobs, smart keys, speed, convenience |
| Hardware store or big-box retailer | $2–$10 | 5–10 minutes | Basic metal keys only |
Frequently Asked Questions
Can I program a key myself if I buy it online?
For most cars made after 2010, no. Smart keys and fobs require specialized programming equipment and access to your vehicle's security system. You can buy a blank key online for less money, but you will still need a locksmith or dealership to program it. The programming usually costs as much as the key itself, so buying online rarely saves money.
What if my car is very old and I cannot find a locksmith who handles it?
Call the dealership first — they may still stock keys for older models even if independent locksmiths do not. If the dealership cannot help, try a vintage or classic car specialist locksmith in your area. You can also contact a local car club for your make and model; members often know which locksmiths handle older vehicles.
Do I need the original key to get a replacement?
For basic metal keys, no — a locksmith or retailer can cut a new one from the lock itself or from your car's lock code. For fobs and smart keys, it depends. Some locksmiths and dealerships can program a new fob without the original if they have access to your vehicle's master code. Others cannot. Always ask before you commit to a service.
Will my car insurance cover the cost of a replacement key?
Most standard car insurance policies do not cover key replacement. Check your policy or call your insurer to be sure. Some roadside information plans (like AAA) cover locksmith calls, which may include key replacement. If you have roadside information, call them first — they often have preferred locksmiths who charge less.
How much should I expect to pay for a spare key made before I lose one?
A spare basic metal key costs $2 to $10 at a retailer. A spare fob costs $50 to $150 at a locksmith or $150 to $300 at a dealership. A spare smart key costs $100 to $200 at a locksmith or $200 to $500 at a dealership. Making a spare before you need it is always cheaper than emergency replacement.