Car key replacement cost
By type of key, with and without an original to copy, at the dealership or from a locksmith, and the two cases where the price doubles.
One replacement key, with an original to copy, United States
$100 to $600per key
Tom's Key Company 2026 guide (transponder and remote $100 to $300, smart key $200 to $600); Kelley Blue Book, fob $150 to $500 or more. Read 24 October 2026.
The price depends on what is inside the key
A car key stopped being a piece of cut metal in the 1990s. Most keys now carry a transponder chip that the car must recognise before it starts, many add a remote for the doors, and push-to-start cars use a smart key that never leaves your pocket. Each step adds electronics to buy and programming to pay for. Kelley Blue Book describes the ladder: the plain cut key of older cars, the chipped key that talks to a transponder in the steering column and that a locksmith can usually program, the remote fob, and the smart key that may require a dealership visit.
| Type of key | What it does | Cost with an original in hand (Tom's Key, 2026) |
|---|---|---|
| Plain metal key | Older cars, no chip; cut from the blank | the cheapest; no national figure in our sources |
| Transponder key | Chip in the head that the car must recognise | $100 to $300 |
| Remote key | Transponder plus lock and unlock buttons | $100 to $300 |
| Fobik | Keyless fob that slots into a dash receiver | $100 to $300 |
| Smart key | Proximity key for push-to-start cars | $200 to $600 |
| Key fob, dealership (Kelley Blue Book) | Replacement of a remote or smart fob | $150 to $500 or more |
Prices are national figures from the sources listed at the end of the page, with their date. Your quote depends on your area and your job. Tom's Key Company sells keys and programming tools; its figures are a supplier's view of the market.
Spare key or lost only key: the price changes
Both sources make the same point from different sides. Tom's Key Company's figures above assume you still have a working key to copy and are making a spare before you need it. Lose your only key and the job changes: the cutting code has to be sourced from the vehicle identification number, the car has to be programmed to accept a new key with nothing to pair it against, fewer do-it-yourself routes exist, and the locksmith may have to come to the car or the car may have to be towed to the dealer. Kelley Blue Book's $150 to $500 or more for a fob is the typical outcome of that second case. The cheapest key you will ever buy is the spare you cut while the first one still works.
Dealership, locksmith or do it yourself
| Route | What you get | Price position (Kelley Blue Book) |
|---|---|---|
| Dealership | Manufacturer parts, programming guaranteed to work, longer wait for an ordered key | the high end of the range; labour rates are the highest |
| Automotive locksmith | Mobile service to the car, programming verified with FCC-certified equipment, aftermarket or OEM parts | 10 to 25 percent below the dealership |
| Do it yourself | Aftermarket fob $50 to $100 plus an OBD-II programmer about $50 | cheapest, with the risk of failed programming and warranty questions |
Two caveats from Kelley Blue Book. For some recent models the dealership is the only route, because the programming tools are not released to locksmiths; call a locksmith with your year, make and model before assuming. And a dead fob is not always a lost fob: the battery is a few dollars and a minute to change, and most cars keep a backup way in and a backup way to start with a dead fob, described in the owner's manual.
What else goes on the bill
Emergency and after-hours call-outs, a drive to a car stranded somewhere, decoding the key cutting code from the VIN, and towing to a dealership when a locksmith cannot program the model all add to the key itself. Tom's Key Company lists them as the reasons the price swings up when you have lost the only key. Insurance may cover the replacement, but Kelley Blue Book notes that the claim counts against your deductible: a $400 fob against a $500 deductible is a claim with no payout. Roadside assistance plans sometimes include lockout service; check what you already pay for before paying again.
Questions that make quotes comparable
Give each dealer or locksmith the year, make, model and VIN, and say whether you have a working key. Ask whether the price includes cutting, the key or fob itself, and programming; whether the part is original or aftermarket, and the warranty on it; whether they come to you and what the trip costs; and how long an ordered key takes. A locksmith's $180 that includes the drive to your car and a dealer's $250 that requires a tow are further apart than $70. Then cut a spare while the new key works.
Questions people ask
How much does it cost to replace a car key?
With an original key in hand to copy, a key supplier's 2026 guide puts a transponder key, a remote key or a fobik at $100 to $300 and a smart key at $200 to $600. Kelley Blue Book puts a key fob replacement at $150 to $500 or more, often at a dealership. Losing your only key costs more in every case.
Is a locksmith cheaper than the dealership for a car key?
Usually. Kelley Blue Book says a reputable automotive locksmith might save you 10 to 25 percent against a dealership, often comes to you, and verifies the programming with certified equipment. The dealership uses guaranteed manufacturer parts at higher labour rates, and for some recent models it is the only option.
Why does losing the only key cost more?
Because there is nothing to copy. The locksmith or dealer has to source the cutting code from the vehicle identification number, program the car to accept a new key from scratch, and sometimes come to the car or tow it. Tom's Key Company lists extra programming steps, code sourcing, fewer do-it-yourself options and on-site service as the reasons the price swings up.
Can I replace a key fob myself?
For many models, yes. Kelley Blue Book describes buying an aftermarket fob for $50 to $100 and an OBD-II programmer for about $50, with the risk that the programming fails or the aftermarket part causes warranty issues. A fob battery, by contrast, is a few dollars and a minute with a coin.
Does car insurance cover a lost key?
Some policies cover key and fob replacement, but Kelley Blue Book points out that the claim counts against your deductible: a $400 fob against a $500 deductible is not worth claiming. Check the policy and the roadside assistance you may already have before paying.
Sources
- Kelley Blue Book, Key fob replacement: what you need to know (replacement $150 to $500 or more, dealership against locksmith, DIY kits, insurance), read 24 October 2026.
- Tom's Key Company, Car key replacement cost in 2026: dealer vs locksmith vs DIY (prices by key type with an original key in hand; a key supplier's own guide), read 24 October 2026.