Where to get a replacement key depends on your car's age and whether you need just the physical key or a programmed fob
A replacement car key costs between $50 and $500 depending on whether it's a straightforward mechanical key, a key with a chip, or a smart fob that communicates with your car's computer. A dealership will charge the most but can handle any key type. A locksmith costs less for older cars but may not work on newer vehicles with encrypted systems. A hardware store can cut a basic mechanical key for $5 to $15 if you already have one to copy, but cannot program electronic fobs. The fastest option is usually a locksmith if your car is more than ten years old; for newer cars, the dealership is often your only choice.
You will need proof of ownership — your registration, title, or insurance card — to get a replacement from a dealership. A locksmith may ask for the same, or may straightforward verify your identity and that you own the vehicle. If you are locked out and need a key when ready, a locksmith can arrive at your location; a dealership requires you to bring the car in or have it towed.
Key Takeaways
- Dealerships can replace any key type but charge $150 to $500 and require proof of ownership; locksmiths cost $50 to $200 but may not work on cars with encrypted systems made after 2010.
- A basic mechanical key cut at a hardware store costs $5 to $15 if you have an existing key to copy, but this does not work for fobs or chip keys.
- You will need your vehicle registration, title, or insurance card to prove ownership at a dealership or locksmith.
- If your car is locked and you need a key on the same day, a mobile locksmith can come to you; a dealership requires an appointment and may take several days.
Dealership replacement: the most expensive but most reliable option
A car dealership can replace any key your vehicle uses, including smart fobs, proximity keys, and keys with embedded chips. The dealership has access to your vehicle's security codes and can program a new key to match your car's computer system. This is the only option for most vehicles made after 2010, because their keys use encrypted codes that change each time and cannot be duplicated by a locksmith or hardware store.
Dealership replacement costs $150 to $500 depending on the key type and your car's make and model. Luxury brands and newer vehicles with advanced fob systems cost more. You will need to bring your registration, title, or insurance card to prove you own the vehicle. The dealership will order the key, program it, and test it before you leave. This process usually takes one to three business days if the key is in stock; special orders can take a week or longer.
If your car is locked and you cannot drive it to the dealership, you can have it towed or ask the dealership whether they offer mobile key programming. Some dealerships send a technician to your location for an additional fee, usually $50 to $100 on top of the key cost.
Locksmith replacement: faster and cheaper for older vehicles
A locksmith can cut and program keys for most vehicles made before 2010 and some made after, depending on the locksmith's equipment and training. Locksmiths typically charge $50 to $200 for a replacement key, which is less than a dealership. Many locksmiths offer mobile service and can meet you at your home, workplace, or roadside location. A locksmith can usually complete the job within an hour.
Before you call a locksmith, confirm that they work on your vehicle's year, make, and model. Some locksmiths specialize in older cars and cannot program newer fobs. Ask whether they charge a trip fee if they come to you, and whether the price includes programming or if that is separate. You will need to show proof of ownership — your registration, title, or insurance card — though some locksmiths may straightforward ask for your driver's license and vehicle identification number (VIN).
Locksmiths cannot replace keys for most vehicles with encrypted systems, which include most cars made after 2010. If your car has a smart key or proximity fob, call the dealership first to confirm a locksmith cannot help before paying a locksmith's trip fee.
Hardware store key cutting: only for straightforward mechanical keys
A hardware store can cut a basic mechanical key for $5 to $15 if you bring in an existing key from your vehicle. The store uses a key-cutting machine to match the cuts on your old key and create an identical copy. This works only for cars with straightforward mechanical locks and no electronic components — typically vehicles made before the 1990s.
A hardware store cannot program chip keys, fobs, or smart keys. If your car has a keyless entry system, a push-button start, or a fob with buttons, a hardware store key will not work. The key will open the door but will not start the engine or unlock the car remotely.
If you have lost all your keys and do not have one to copy, a hardware store cannot help. You will need a locksmith or dealership to create a new key from your vehicle's security codes.
What to do if you have lost all your keys
If you have lost every key to your vehicle, you cannot use a hardware store or most locksmiths. You must go to a dealership or call a locksmith who specializes in vehicles with no keys present. The dealership will need your registration and proof of ownership. They will verify your identity and ownership in their system, then order and program a new key. This process takes longer than a replacement when you have one key, usually three to five business days.
Some locksmiths can create a key from scratch using your vehicle identification number (VIN) and proof of ownership, but this is more expensive than a standard replacement — often $200 to $400 — and not all locksmiths offer this service. Call ahead to confirm the locksmith can work without an existing key before you schedule an appointment.
If your car is locked and you cannot access it, you will need to have it towed to the dealership or to a locksmith's shop. Some towing services can unlock your car without a key, but this does not solve the problem of needing a working key to start the engine.
Comparing cost and time across your options
| Option | Cost Range | Time to Complete | Works on Newer Cars | Mobile Service Available |
|---|---|---|---|---|
| Dealership | $150–$500 | 1–7 days | Yes, all models | Sometimes, extra fee |
| Locksmith | $50–$200 | 30 minutes–2 hours | No, usually pre-2010 | Yes, standard |
| Hardware store | $5–$15 | 15–30 minutes | No, mechanical only | No |
| Locksmith (no existing key) | $200–$400 | 1–3 days | Varies by locksmith | Yes, standard |
What information you need before you call
Before you contact a dealership or locksmith, gather your vehicle identification number (VIN), which appears on your registration, insurance card, and the dashboard on the driver's side. Have your proof of ownership ready — registration, title, or insurance card. Know your vehicle's year, make, and model, and whether it has a basic key, a key with a chip, or a smart fob with buttons.
If you are calling a locksmith, ask whether they work on your specific vehicle and whether they charge a trip fee. If you are calling a dealership, ask how long the replacement will take and whether you need to bring the car in or if they offer mobile service. Ask whether the cost includes programming and testing, or if those are separate charges.
If your car is locked and you need access when ready, tell the locksmith or dealership this upfront. Some locksmiths can unlock your car and create a key on the same visit; dealerships usually cannot.
Frequently Asked Questions
Can I use a key from a different car of the same make and model?
No. Even if two cars are the same year, make, and model, their keys are coded to their individual vehicles. A key from another car will not start your engine or unlock your doors. Each key is programmed to match only one car's security system.
What if I only have one key left and I want a spare?
Bring your existing key to a dealership or locksmith and ask for a duplicate. This is faster and cheaper than replacing a lost key because the technician can copy the codes from your working key. A dealership charges $75 to $200 for a spare; a locksmith charges $50 to $150. A hardware store can cut a basic mechanical key for $5 to $15 if your car has a straightforward lock.
Will my car insurance cover the cost of a replacement key?
Most car insurance policies do not cover lost or damaged keys. Some roadside information plans, like AAA, include locksmith services or key replacement reimbursement up to a certain amount. Check your policy or call your insurance company to confirm. If you have roadside information, they may send a locksmith to you at no cost.
How long does it take to program a new key?
A locksmith or dealership can program a key in 30 minutes to two hours if they have the equipment and your vehicle is present. A dealership may take longer if they need to order the key first, which can add one to seven days. If you have no existing key, programming takes longer because the technician must access your vehicle's security codes through the dealership's system.
Can I get a replacement key without proof of ownership?
No. Both dealerships and locksmiths require proof of ownership — your registration, title, or insurance card — to prevent theft. They will verify your identity and that you own the vehicle before creating a new key. If you cannot find your registration, bring your insurance card and driver's license, and the dealership or locksmith can look up your ownership in their system.