Where to get a replacement car key
You have three main places to get a replacement car key: a dealership, a locksmith, or a big-box retailer like Home Depot or Lowe's. Each charges different prices and takes different amounts of time. A dealership will program the key to your specific vehicle but costs the most — typically $200 to $500 depending on your car's make and model. A locksmith can often do the same work for $100 to $250 and may come to your location. A hardware store can cut a basic key for $5 to $15, but it won't start your car if your vehicle uses a transponder key (a key with an electronic chip inside).
Before you call anyone, check what type of key your car uses. If your key has a plastic head with a chip visible inside, or if your car was made after the mid-1990s, you almost certainly have a transponder key. If it's a flat metal key with no electronics, a hardware store key will work. The dealership can always help, but they're the slowest and most expensive option — expect to wait days or weeks if you don't have a spare.
Key Takeaways
- Dealerships program keys to your car but charge $200 to $500 and take several days; locksmiths do the same work for less and faster.
- Hardware stores cut basic keys for $5 to $15, but only if your car uses a flat metal key without electronics.
- Transponder keys (with a chip inside) must be programmed to your vehicle and cannot be cut at a hardware store.
- You'll need proof of ownership — usually your title or registration — before a dealership or locksmith will make a key.
- Some newer cars use keyless entry fobs or push-button starts instead of traditional keys, which require dealership service.
What information and documents you'll need
Bring your vehicle identification number (VIN) and proof of ownership. Your VIN is a 17-character code stamped on your dashboard (visible through the windshield on the driver's side) and printed on your registration and title. A locksmith or dealership will ask for this to confirm they're making a key for your car, not someone else's. Proof of ownership is usually your registration card, title, or insurance card — anything with your name and the vehicle's details.
If you're locked out of your car and don't have these documents with you, a locksmith can often work around this by verifying your identity with a driver's license and calling your insurance company or the dealership to confirm ownership. A dealership will be stricter and may refuse to proceed without your title or registration in hand.
How long it takes and what it costs
A locksmith is usually the fastest option. If you call one to your location, they can cut and program a transponder key in 30 minutes to an hour, though prices vary by region — expect $150 to $300 total. A dealership takes longer because they order keys in batches and may not have your specific key in stock. You could wait three to seven business days, and the bill will be $200 to $500 depending on your vehicle. A hardware store is when ready if your key is a straightforward flat metal type, but this only works for older cars.
Some locksmiths charge a service call fee ($50 to $100) on top of the key cost if they come to you. Dealerships don't charge a service call but build the cost into the key price. If you need a key urgently and it's after hours, a 24-hour locksmith will charge a premium — sometimes double the daytime rate.
Transponder keys versus standard keys
A standard key is a flat piece of metal with no electronics. It opens your car door and turns the ignition mechanically. A transponder key has a small computer chip embedded in the plastic head. When you insert it into the ignition, the car's computer reads the chip's code. If the code matches, the engine starts. If it doesn't, the engine won't turn over — this is a theft-prevention feature.
Most cars made after 1995 use transponder keys. If you try to start your car with a key that hasn't been programmed to it, you'll hear the engine crank but it won't start. A hardware store can cut the metal part of a transponder key to fit your door lock, but they cannot program the chip. You must go to a locksmith or dealership for programming. Some locksmiths can program keys on the spot; others may need to order a blank key and program it later.
What to do if you're locked out of your car
Call a locksmith first. They can unlock your car door and make a replacement key in one visit, often within an hour. A dealership cannot unlock your car — they only make keys for people who already have access to the vehicle. If you're on the roadside, call roadside information through your insurance company or a membership service like AAA; they'll send a locksmith to you and may cover part of the cost.
Do not try to break into your own car. You risk damaging the door, window, or ignition, which will cost far more than a locksmith visit. If your car is financed or leased, your lender or leasing company may have a roadside information program listed in your paperwork.
Making and storing spare keys
Get a spare key made as soon as you buy a car, before you lose or damage your original. A spare costs the same as a replacement and takes the same time, but you'll have it before you need it. Store the spare somewhere safe but not in your car — a locked drawer at home, with a trusted family member, or in a safe deposit box. Never hide a spare key under your car's bumper, floor mat, or sun visor; thieves know these spots.
If your car uses a keyless entry fob or push-button start, ask the dealership whether a physical backup key exists. Some newer vehicles don't have a traditional key at all, only a fob. In that case, you'll need a replacement fob, which costs more ($300 to $500) and takes longer to program.
Keyless entry fobs and push-button starts
Newer cars often use a keyless entry fob — a small remote that unlocks the car when you press a button. Some cars go further and use a push-button start, where you keep the fob in your pocket and press a button on the dashboard to start the engine. If you lose a fob or it stops working, you must go to a dealership. They cannot be cut or programmed by a locksmith in most cases.
A replacement fob costs $200 to $500 and takes one to two weeks because dealerships often order them from the manufacturer. Some dealerships can program a fob the same day if they have one in stock. Ask when you call. If your fob battery dies, you can usually replace the battery yourself — it's a coin-cell battery that costs $5 to $10 and takes two minutes to swap out. Check your owner's manual for instructions.
Frequently Asked Questions
Can a locksmith make a key if I don't have my title?
Yes, most locksmiths will make a key with just your driver's license and VIN. They may call your insurance company or the dealership to verify ownership. A dealership is stricter and usually requires your title or registration in person before they'll proceed.
What if my key breaks in half?
If the metal part breaks but the chip is intact, a locksmith can extract the chip and install it in a new key blank — this is faster and cheaper than ordering a new key from the dealership. If the chip is damaged, you'll need a completely new key, which requires programming.
How much does it cost to program a key I already have?
If you have a key blank (the metal part cut but not programmed), a locksmith or dealership can program it for $75 to $200. This is cheaper than buying a key blank and programming together. Some dealerships sell blanks; ask before you buy one elsewhere.
Can I program a key myself?
Some older cars (usually pre-2000) allow you to program a key yourself by turning the ignition on and off in a specific sequence — your owner's manual will say if yours does. Most modern cars require professional programming equipment that only dealerships and locksmiths have.
What if my car is still under warranty?
A dealership will make a replacement key under warranty if the original key failed due to a defect, not normal wear. If you lost the key, you'll pay the full cost. Check your warranty paperwork or call the dealership to ask whether key replacement is covered.