Two people call us in the same afternoon, both say "I need a key fob," and the two quotes are two hundred dollars apart. Neither of them is being overcharged. The gap is real, and it comes from four things you can check yourself before you call anyone. Call or text (817) 214-2934 and we will tell you which of the four you are dealing with.
Quick Answer
As of September 2026 in Granbury, a key fob replacement runs $100–$400 for the common remote-head and flip-key styles, and $200–$600 for push-to-start proximity fobs. Programming on its own sits in the $80–$350 range. The four things that move your quote are: whether you still have one working key, whether the fob is a remote or a proximity fob, whether the vehicle accepts an aftermarket fob, and whether the programming can be done in the driveway or needs a dealer-only procedure.
The Four Questions That Decide Your Price
Before any locksmith can give you a number that means something, these four answers have to exist. If you have them ready when you call, you get a real quote instead of a range.
1. Do you still have one working key? This is worth more money than anything else on the list. Adding a fob to a vehicle that already accepts a key is a routine procedure on most makes. Losing every key means the vehicle has to be convinced to trust a stranger, which on some systems means a security wait, on others a module read, and on a handful genuinely means the dealer. On the same vehicle, the same physical fob, that difference is commonly a hundred dollars or more.
2. Is it a remote or a proximity fob? A remote-head key or flip key has a metal blade you turn in an ignition, with the buttons built into the head. A proximity fob stays in your pocket and you press a button to start. The proximity electronics cost more to buy and more to pair, which is why the bands separate at roughly $400.
3. Will the vehicle accept an aftermarket fob? Most will. Some 2018-and-newer platforms are fussy about non-original parts, and a few reject them outright after an update. When a vehicle needs an original-equipment fob, the part alone can cost more than an aftermarket fob plus the labour to fit it.
4. Can it be programmed on site? Almost everything we see in Hood County can. A small number of systems — certain European marques, certain very recent platforms, some vehicles with a locked security gateway — require credentials or a connection we cannot make at the roadside. We tell you that before you pay, not after.
Granbury Key Fob Pricing
| Job | Typical Granbury range (September 2026) | Notes |
|---|---|---|
| Remote-head or flip key fob, one working key available | $100–$400 | The common case — cut, pair, test |
| Remote-head or flip key fob, all keys lost | $150–$400 | Adds security access time on some systems |
| Push-to-start proximity fob, one working key available | $200–$500 | Part cost drives most of the difference |
| Push-to-start proximity fob, all keys lost | $250–$600 | Some platforms are dealer-only; confirmed first |
| Programming only — you already have the fob | $80–$350 | Depends on the system, not on where you bought it |
| Extra fob added during the same visit | Lower than a separate call-out | Second unit saves the trip charge |
| Fob shell or button pad replaced, electronics reused | Bottom of the $100–$400 band | Only when the board is genuinely undamaged |
| BMW / Mercedes-Benz / Lexus proximity keys | $250–$700 / $300–$800 / $200–$600 | Specialist procedures, quoted per model |
Those bands are the ones published across this site, including on our key fob replacement page and our key fob replacement and programming service. We quote inside them before starting, and we quote the all-in number rather than a part price that grows later.
Why Two Identical-Looking Fobs Quote Differently
This is the part that frustrates people, so it is worth being specific.
Fobs that look the same from the outside frequently are not the same inside. Two vehicles from the same manufacturer, two model years apart, can use different transponder generations, different radio frequencies, and different programming routes. The plastic is interchangeable; the electronics are not. A 2013 and a 2017 of the same badge can be a $140 job and a $320 job, and the only visible difference is the year on the registration.
The second reason is the security procedure. Some manufacturers allow a new key to be added in a few minutes when an accepted key is present. Others impose a deliberate waiting period — ten minutes, thirty minutes, sometimes longer — that exists specifically to make stealing a car harder. That wait is not padding on the invoice; it is designed into the vehicle. But it is time on your driveway, and any honest quote accounts for it.
The third reason is where the programming lives. On older vehicles the immobilizer sits in or near the ignition. On newer ones it lives in a body control module, and on the newest it sits behind a security gateway that has to be satisfied before anything can be written. That progression is why a decade of model years spans such a wide price band, and it is the same progression we walk through in our transponder key, smart key and key fob comparison.
Locksmith Versus Dealer on a Fob
A dealership can always do this work. The question is what it costs you in total.
For a key fob, dealer pricing commonly lands in the $300–$600 range for the part and programming, against $150–$350 for equivalent mobile locksmith work — roughly a 45% difference on the labour and parts alone. Then there is the vehicle. If the fob is your only way to start the car, a dealer visit means a tow or a flatbed, because the car has to get to their floor. From Tolar, Lipan, or the far side of Lake Granbury, that transport can cost as much as the key.
Mobile service inverts that. We come to the vehicle, which is why an all-keys-lost job and an add-a-key job cost roughly the same in travel terms even though they differ in labour. The full comparison, service by service, is in our dealer cost comparison for Granbury.
There is one honest exception. Where a platform genuinely requires dealer credentials, we say so on the phone. Paying a locksmith to discover that is the worst outcome for everyone.
Buying a Fob Online First: When It Saves Money and When It Costs You
People often buy the fob themselves and call for programming only. Sometimes that is genuinely cheaper. Often it is not, and here is the honest breakdown.
It works when: you bought the correct part number for your exact year and trim, the fob is unlocked and virgin (never paired to another vehicle), and the frequency matches. In that case you pay the $80–$350 programming band and nothing else, and you have saved the part margin.
It fails when: the fob arrives already paired to a previous vehicle and cannot be reset, the FCC ID on the back does not match what your vehicle transmits on, or the part number is close but not correct for your build. We then have a technician standing in your driveway with a fob that cannot be used, and you have paid for a trip that produced nothing.
The safe move is simple. Before you buy, send us the year, make, model, and a photo of the back of your existing fob if you still have one. Two minutes of checking prevents the expensive version. The same logic applies to a fob that is physically broken rather than lost — see our guide to damaged transponder key replacement for when the electronics can be reused and when they cannot.
What Actually Changes the Price, in Order of Impact
Whether a working key exists. Already covered, and still the biggest single lever. If you have one key and no spare, the cheapest fob you will ever buy is the one you buy today rather than after you lose it.
Proximity versus remote. The electronics in a push-to-start fob cost more. There is no way around this; it is a parts reality, not a labour one. Our push-to-start key replacement service covers the proximity side specifically.
Model year and platform generation. Not the badge. A 2009 and a 2019 of the same model can be entirely different jobs.
Whether the vehicle needs an original part. Uncommon, but real on some recent platforms, and it moves the number.
Time of day. Emergency and after-hours work carries a premium, as it does everywhere. If your fob has stopped working but the vehicle is safely parked and you have another way to get around, booking a normal weekday slot is cheaper than calling at 11 PM.
How many fobs you want. The second one during the same visit is materially cheaper than the second one next month, because you are not paying for a second trip out to Hood County.
The Part of the Quote People Do Not Expect: the Cut
A remote-head or flip key still has a metal blade, and the blade still has to be cut to your locks. On most vehicles that is a laser-cut or high-security blade, not a simple edge cut, and it is cut either from the key code tied to your VIN or by decoding the door lock directly.
This matters for two reasons. First, it is real work, and it is inside the quoted band rather than an extra. Second, it is the reason an all-keys-lost job on a remote-head key is not simply "programming" — the blade has to exist before the electronics matter. Proximity fobs have an emergency blade too, usually hidden in the body of the fob, and on a genuine all-keys-lost that blade is often what gets you into the vehicle in the first place.
What We Need Before We Come Out
Have these ready and the visit is short:
- Year, make, model, and trim
- Whether you have a working key right now, and how many
- A photo of the back of your existing fob, if one exists
- Where the vehicle is and whether it is locked
- Whether the vehicle currently starts
Proof that the vehicle is yours is required on any job where we make a key. Registration, title, or insurance in your name alongside your ID is the normal set. We do not make keys to vehicles we cannot tie to the person asking, and any locksmith who skips that step is the one to worry about — a point we go into in our guide to vetting a locksmith in Granbury.
How the Job Runs
A typical fob job in Granbury takes between twenty minutes and an hour and a quarter, depending on whether a security wait applies.
We confirm the vehicle and the fob type, cut the blade if there is one, connect to the vehicle's diagnostic port, and write the new fob to the immobilizer. Then we test every function — start, lock, unlock, panic, trunk or liftgate if fitted — before anyone pays. If the vehicle imposes a security delay we tell you at the start, so you can decide whether to wait on the driveway or go inside.
If you are adding a spare to a working vehicle, you do not need to be there for the whole procedure, but you do need to be there at the start with the vehicle and your ID, and at the end to take the key.
One Habit That Prevents the Expensive Version
Keep a second fob, and keep it somewhere that is not the same keyring, the same handbag, or the same truck console as the first one.
Every all-keys-lost call we take in Hood County was, at some earlier point, a cheap add-a-key job nobody got around to. On a proximity vehicle that gap between the two prices is frequently $200 or more, and on a few platforms it is the difference between a driveway visit and a tow to a dealer. The second fob is the cheapest insurance in the whole of vehicle ownership, and it never costs less than it does on the day you still have one key working.
The related habit: replace the fob battery before it fails completely rather than after. A weak battery makes a fob behave strangely — shorter range, intermittent unlocking, occasionally a no-start on a proximity vehicle — and people replace working fobs over it. If yours is behaving oddly, a battery is a few dollars and worth trying first. And if the fob has been anywhere near water, that is a different problem with a clock on it, covered in our write-up on water-damaged fobs and BCM faults on Chevy Tahoe and GMC Yukon.
Frequently Asked Questions
How much does a key fob cost in Granbury? As of September 2026, remote-head and flip-key fobs run $100–$400 including programming, and push-to-start proximity fobs run $200–$600. Programming a fob you already own is $80–$350. You get the all-in number before we start, not a part price that grows.
Why is my quote higher than my neighbour's for the same-looking fob? Almost always one of four reasons: they had a working key and you do not, theirs is a remote and yours is a proximity fob, your platform needs an original-equipment part, or your vehicle imposes a security waiting period. Model year matters far more than the badge on the fob.
Can you program a key fob I bought online? Often yes, at the $80–$350 programming band — provided the part number and frequency match your exact year and trim, and the fob has never been paired to another vehicle. Send us a photo of your current fob and your year, make and model before you buy, and we will tell you whether the one in your basket will work.
Do you come to me, or do I bring the car to you? We come to you. Mobile service is the whole point on a vehicle that will not start, and we cover Granbury, Acton, DeCordova, Pecan Plantation, Tolar, Lipan, Cresson, Nemo, Bluff Dale, Glen Rose, and roughly 25 miles out.
Is a locksmith cheaper than the dealer for a key fob? Usually, and the saving is bigger than the price list suggests. Dealer fob work commonly runs $300–$600 against $150–$350 mobile — but if the fob is your only key, the dealer route also means getting a non-starting vehicle onto their floor. That transport is often the largest line on the day.
My fob works to unlock the doors but the car will not start. Is the fob the problem? Not necessarily. Unlocking uses the radio side of the fob; starting uses the immobilizer side, and they can fail independently. It can also be a weak fob battery, the vehicle's receiver, or something unrelated to keys entirely. Worth diagnosing before buying a fob you may not need.
How long does key fob programming take? Twenty minutes to about an hour and a quarter for most vehicles. The variable is the manufacturer's security delay, not our speed — some platforms deliberately impose a wait of ten to thirty minutes or more when keys are added, and we tell you up front if yours is one of them.
Can I get two fobs programmed at once? Yes, and it is meaningfully cheaper than two separate visits because you only pay one trip out. If you are already paying for a call-out in Hood County, the second fob is the best-value decision available on that visit.
Get a Real Number Before You Order a Fob
Send us the year, make, model, and what currently works, and you will get a figure rather than a range. Call or text (817) 214-2934, weekdays 8:00 AM to 7:00 PM, Saturdays 8:00 AM to 5:00 PM, with 24/7 emergency availability. You can also request service through our contact page, read how transponder key programming in Granbury works on the chip side, or start with our car key replacement service.
Sources
- Texas Department of Public Safety — Private Security Program
- National Automotive Service Task Force — Vehicle Security Professional Program
- Federal Communications Commission — ID search for radio-frequency devices
- National Insurance Crime Bureau — vehicle theft resources
- Associated Locksmiths of America
- Texas Department of Motor Vehicles — vehicle registration and title