What does key fob replacement actually involve?
A key fob is the small electronic part of your car key. Depending on the vehicle, it might be a plain remote with lock and unlock buttons, a flip key with a remote built into the head, or a proximity fob that lets a push-button-start car recognize you without ever touching a blade. Replacing one is not like copying a house key. The new fob has to be the right hardware for your vehicle, and then it has to be programmed so the car accepts it.
That second part is what people tend to underestimate. A fob that looks identical to yours can be useless if the frequency, chip type, or internal electronics are wrong for your car. Programming is the step where the vehicle's computer learns the new fob, and on many cars it also lets us remove a lost fob from the car's memory so whoever finds it can't use it.
We handle remote car key replacement, smart car key replacement, spare key fob programming, and push-to-start key replacement. If what you have is a plain metal key with no electronics, that's a different job, and our car key replacement page covers it.
Why a dead or missing fob is a bigger problem than it looks
With an older metal key, a worn-out key was an annoyance. With a smart key, a dead or missing fob can leave you unable to open the car, unable to start it, or both. Push-button-start cars in particular depend on the fob being detected inside the cabin. Some will let you start the engine with a weak fob if you hold it against a certain spot on the dash or steering column, but that varies by vehicle, and it's a stopgap, not a fix.
Before you call anyone, check the simple things. If the fob works only from close range, or only some of the time, the battery is the first suspect, and replacing a coin battery costs far less than replacing a fob. If a fresh battery doesn't help, the fob may have been dropped, soaked, or have a failing circuit board. If the fob is simply gone, you're in lost-key territory, and the process is a bit different. We lay that out on our lost car key replacement page.
If your fob is missing and the car is locked, the first job is getting the door open without damage. That's a separate service, and we cover it under car lockout. Often we can do the lockout and the new fob in the same visit.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How we replace and program a key fob, step by step
Every vehicle is a little different, so we don't promise a one-size routine. Here is the general order we work in, and where we adjust.
- You call (213) 577-1366 any hour of any day. We ask for the year, make, model, and whether the car starts with a button or a key in the ignition. If you can read us the VIN from the dashboard or door jamb, even better.
- We tell you plainly what we can and can't do for that vehicle. If it's a case where only the dealer can complete the job, we say so on the phone instead of sending a van for nothing.
- We come to you with a mobile van, or you can visit our storefront at 10740 Wilshire Blvd in Westwood if you'd rather bring the car in.
- On site, we confirm ownership. Expect to show ID and proof the vehicle is yours, such as registration or title. We ask this of everyone, and a locksmith who doesn't ask is a bad sign.
- We verify the VIN and the fob type in person before we cut or program anything, so the part matches your car rather than just looking like it does.
- We prepare the new fob, cut an emergency blade if the fob has one, and program it to the vehicle.
- We test everything: lock, unlock, trunk or hatch if equipped, remote start if equipped, and starting the car. If you have a second fob, we test that too, because programming sometimes needs every working fob present.
- We go over what we did, what's now in the car's memory, and what to do if you misplace another one.
Remote fobs, smart keys, and push-button start: what's different?
The terms get mixed up, so here is how we think about them when we're scoping a job.
We don't quote chip or programming details from memory for specific makes and models. Systems change from year to year, and some listings conflict with each other. That's why we confirm by VIN and in person. If a vehicle can't be handled by a locksmith, we'll tell you it's a dealer-only case, honestly, rather than start something we can't finish.
- Remote head keys and flip keys combine a metal blade, a transponder chip for starting the engine, and remote buttons. Sometimes the remote and the chip are programmed separately, which affects how the job goes.
- Plain remotes are the lock and unlock fobs that ride on a keyring next to a separate key. They're often the lighter-cost fix, but the car still needs to learn them.
- Proximity or smart keys let the car sense the fob nearby. These are the fobs behind push-button-start and push-to-start key replacement. They tend to involve more security steps.
- Dealer-only cases do exist. Some vehicles lock key programming behind manufacturer-held access, and no outside shop can finish it. We'd rather tell you that up front.
- Engine-start chips are a related topic. If your issue is the chip in a standard key rather than the fob, see our page on transponder key programming.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What affects the cost of a key fob replacement?
We don't put numbers on a web page, because the honest answer depends on your car. What we can do is tell you exactly what moves the cost up or down, so the quote you get over the phone makes sense.
- The type of fob. A basic remote is generally less involved than a proximity smart key for a push-button-start vehicle.
- Whether you have a working key or not. Making an additional fob from a working one is usually the more economical route. An all-keys-lost situation needs more work, because the car has nothing to copy from.
- Vehicle make, model, and year, since some systems are simpler to program than others.
- Hardware choice. Original-manufacturer fobs and aftermarket fobs differ in both cost and fit, and we'll explain the tradeoffs for your car instead of pushing one.
- Whether we come to you or you come to us. Mobile service includes travel, and a storefront visit doesn't.
- The time of day. Late-night and holiday calls take us away from sleep and family, and that's reflected in the quote.
- Add-ons, like cutting an emergency blade, programming a second fob, or removing a lost fob from the car's memory.
Should you get a spare key fob before you need one?
In our experience, yes, if your car still has a working fob. A spare made while you hold a working fob is usually the more economical route compared with replacing everything after the last fob disappears. The car already recognizes you, the process is more direct, and nobody is stranded while it happens.
A spare also takes the pressure off. You can leave one fob somewhere safe at home and keep the other for daily use. If one gets lost, damaged, or run through a wash, you have an hour of aggravation instead of a day of it.
If you've bought a used car and only received one fob, add a spare soon. It's also a reasonable time to ask whether previous owners' fobs could still start the car, since on many vehicles we can clear old fobs from memory during programming. That depends on the system, so we confirm at the time of service.
A final note: if you're considering buying a fob online, call us first. Some fobs sold cheaply online are used, locked to another vehicle, or the wrong type, and we can't always reuse them. We'd rather you ask before buying than after.
Key fob service around Studio City
Our storefront is at 10740 Wilshire Blvd in Westwood, and Studio City is about 11 miles from there. That's why mobile service matters here: we bring the equipment to wherever your car is parked, whether that's in ZIP code 91604 or 91602.
Fob problems here follow how people live in the neighborhood. Someone who works near the Radford Studio Center area and walks out to find the push-button-start fob not responding needs a different kind of help than a person sitting in a hillside driveway off Laurel Canyon Boulevard. We send a van to either spot, and you don't need to move the car. Car key replacement near Radford Studio Center is a scenario we plan for, and we handle it on site.
Colfax Meadows, Tujunga Village, and the Silver Triangle are mostly older character homes, and plenty of residents there park on the street or in narrow driveways. If you're in a spot like that, tell us the cross streets and we'll plan the visit around where the car actually sits. Along the Ventura Boulevard corridor, many cars are parked in lots or on the street for part of the day, so we coordinate with you on a spot where we can work safely with the doors open and the engine running. In the apartment buildings along Moorpark Street, we'll meet you at the car in the building's parking area, and you don't need to come to us.
Out toward the Coldwater Canyon corridor and the Laurel Canyon hillside streets, give us clear directions and any gate codes ahead of time. If a gate stands between us and the car, our work on it falls under mobile locksmith service, which covers how we reach you.
Summers here are hot and dry like the rest of the south valley. A fob left in a hot cabin for hours isn't doing its battery any favors, and dead batteries are one of the most common calls people have about a fob that suddenly stops working. It's worth swapping the battery before assuming the fob itself has failed.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Why call Wilshire Lock & Key for a key fob?
We've been in business since 1987 and serve 140 cities across Los Angeles and Ventura counties. Studio City is one of them. That history means we've seen fobs come and go, from simple remotes to the push-button systems on newer cars.
We're one company. When you call (213) 577-1366, you reach us, not a call center that sells your job to whoever picks it up. The technician who arrives works for us, and David, the owner and lead technician, oversees the work. We have a real storefront and mobile vans, so if your situation fits a shop visit better than a roadside one, that's available.
On licensing: California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, called a BSIS LCO license. You should ask any locksmith for their license number before work begins, including us. A company that dodges the question is telling you something.
We're also straightforward about limits. If your vehicle needs the dealer, we say so. If the lighter-cost fix is a new battery and not a new fob, we say that too.
Keeping your fob working once it's fixed
A few habits prevent most repeat calls. Replace the coin battery when the fob's range starts shrinking, not after it dies. Keep the spare fob in a separate place from the main one. Don't hang a heavy bundle of keys from the fob, since the weight wears on the ignition on cars that use one.
If your car is acting up when the fob is nearby, such as it not starting even with a fresh fob, the issue might not be the fob at all. Problems in the ignition or the steering lock can look like fob trouble, and we cover that under ignition repair. For the full range of vehicle work, our automotive locksmith page is the place to start.
If you'd rather write to us than call, use our contact page. For anything urgent, the phone is faster: (213) 577-1366, any hour.
Frequently asked questions
Can you make a new key fob if I've lost every key to my car?
In many cases, yes. It takes more work than copying a working fob, because the car has nothing to copy from, and the cost reflects that. Some vehicles can't be finished by a locksmith and are dealer-only. We confirm by VIN and in person, and we'll tell you honestly which situation you're in.
Will my old fob still work after you program a new one?
It depends on the vehicle. On many cars, programming lets us clear lost fobs from memory so only the ones you have will work. On others, the process works differently. We tell you what applies to your car before we start.
Do you come to me in Studio City, or do I have to bring the car in?
We come to you. Our mobile vans serve Studio City, including ZIP codes 91604 and 91602. If you'd rather bring the car to our storefront at 10740 Wilshire Blvd in Westwood, that works too.
Can you program a fob I bought online?
Sometimes. Fobs sold online can be the wrong type, locked to another vehicle, or previously used, and some can't be reused. Call us with your vehicle details before buying, and we'll tell you what to look for. If you already have one, we'll check it before promising anything.
What do I need to show you before you replace a fob?
We ask for ID and proof that the vehicle is yours, such as registration or title. It protects you. Anyone who will program a key for a car without asking whether it's yours is a risk to every car owner.
Is it cheaper to replace the battery than the fob?
Often, yes. If your fob works only up close or intermittently, try a new battery first. If a fresh battery doesn't solve it, the fob itself may be damaged. We're glad to tell you over the phone which situation sounds more likely.
Should I go to the dealer or call a locksmith for a smart key?
For most vehicles, a locksmith can do the job and come to you, which saves moving a car that may not start. A few vehicles are dealer-only, and we'll say so on the phone. Compare the quotes and ask about the whole job, including whether the vehicle needs to be towed.
How is the price of a key fob replacement worked out?
It depends on the fob type, your vehicle, whether you have a working key, the hardware you choose, whether we travel to you, and the time of day. We explain these factors on the call so the quote makes sense. Call (213) 577-1366 and have your VIN handy.
More locksmith help in Studio City
Key Fob Replacement near Studio City
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.