What does key fob replacement actually involve?
A key fob is a small computer that happens to open your car. Inside is a radio transmitter, a battery, and usually a chip that has to be introduced to your vehicle before the car will accept it. That is why a fob you order online or pick up from a drawer at a friend's house will not simply work. The car has to be told that this particular fob is allowed, and in most cases the old, lost fob has to be told it is no longer allowed.
When someone in Toluca Lake calls us about a fob, it is usually one of a few situations. The fob is lost and there is no spare. The fob is cracked, waterlogged, or has stopped responding even with a fresh battery. The buttons are worn through. Or the owner has only one fob and wants a second one made before the first one disappears. All of these are the same job at heart: cut or prepare the new key, program it to the vehicle, and confirm that every function works before we leave.
Replacing a fob is different from simply making a copy of a metal key. If all you need is a plain cut key with no electronics, that is a key duplication job. If the car will not start because of a chip problem, that falls under transponder work. This page covers the remotes and smart fobs themselves.
Which kind of key fob do you have?
The word fob covers several different things, and the type you have changes how the job goes. Knowing which one is in your pocket makes the phone call faster and the work more predictable.
We do not guess about what a given vehicle will accept. Whether a specific year, make, and model can be programmed by a locksmith, needs a particular tool, or has to go through the dealer is something we confirm by VIN or in person with the vehicle in front of us. Published lists conflict with each other, and we would rather tell you plainly that we are checking than promise something we cannot back up.
- Remote key or flip key: a metal blade that folds into the fob, with lock, unlock, and trunk buttons built in. The blade turns in the door and ignition, and the electronics handle the remote functions.
- Remote head key: a one-piece key with the buttons on the head. It starts the car the traditional way, so it may need both cutting and programming.
- Proximity key or smart key: a fob that stays in your pocket or bag. The car senses it nearby, so you can unlock the door and start the engine without taking it out. Most of these have a hidden emergency blade inside.
- Push-button start fob: the same smart key technology, matched to a car that has a start button instead of a keyhole in the ignition. People searching for push to start key replacement or push button start key replacement are usually talking about this type.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How do we replace and program a key fob?
Here is how a typical visit goes, whether it happens in your driveway, in a condo garage, or in a parking lot. The details shift by vehicle, but the order does not.
- You call (213) 577-1366 and tell us the year, make, and model, plus whether the car has a key slot or a start button. If you have the VIN, which is visible at the base of the windshield on the driver's side, have it ready.
- We ask whether you have any working key at all. That matters because adding a key when one still works can be a simpler process than starting from nothing when every key is lost.
- We confirm that the vehicle's fob can be handled by us, and we tell you honestly if it is a dealer-only case. We would rather say so on the phone than spend your afternoon on it.
- A technician drives to you with the equipment, or you bring the car to our storefront at 10740 Wilshire Blvd in Westwood. We verify ownership with your registration and a photo ID before making a key for any vehicle.
- We cut the emergency blade if the fob has one, then program the new fob to the car. If the old fob is lost, we also remove it from the vehicle's memory so it cannot be used to open or start the car.
- We test everything: lock, unlock, trunk or hatch, panic button, and starting the engine. For proximity keys we check that the car recognizes the fob from the driver's seat and from outside the door.
- You leave with working fobs, and we suggest which spare is worth making so you are not in the same spot again.
What affects the cost of key fob replacement?
We do not quote prices in writing on a web page because the honest answer is that the range between vehicles is wide. What we can do is tell you exactly what moves the number, so the quote you get from us or anyone else makes sense.
When you call, we can usually tell you which of these apply to your car in a single conversation. The lighter-cost route is often the simplest one: you have a working key, the fob type is common, and we can come to you during normal hours. The more involved route is a smart key for a newer vehicle with every key lost, where the car has to be re-taught from scratch.
One more point on price: a quote should cover the fob, the cutting, the programming, and the trip. Ask anyone you call whether the figure they give includes all of that. If the answer is vague, ask again.
- The fob itself: a basic remote is a different part from a proximity smart key, and genuine or high-quality aftermarket versions are not interchangeable at the same cost.
- Whether you have a working key: copying from a key that still works is generally less involved than creating a first key when all are lost.
- Vehicle year, make, and model: some cars program with straightforward equipment, others need more extensive procedures or security access.
- Emergency blade cutting: smart fobs with a hidden blade, especially on high-security cuts, need precise machine work.
- How many fobs you want: making a spare during the same visit is usually more economical than coming back later.
- Where and when: a mobile visit to your location involves travel, and after-hours or holiday calls differ from a daytime storefront visit.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366When is the dealer the only option?
Most fob jobs we handle ourselves, but not all. Some vehicles, especially certain newer models, lock key programming behind manufacturer-only access. In those cases a locksmith cannot complete the job, and no amount of equipment changes that. We would rather say that clearly than take your call and your time and then send you elsewhere.
Because the data on this is unsettled and varies by exact model and year, we confirm by VIN or in person before we promise anything. If it turns out the dealer is your only route, we will say so, and we will tell you what to bring so the visit goes smoothly: registration, ID, and any keys you still have.
If you have already been to a dealer or another shop and been told the car cannot be programmed, it is still worth a phone call. Sometimes the issue is the specific tool they own rather than the vehicle itself. We will tell you what we find.
Why call Wilshire Lock & Key for a key fob?
We have been in business since 1987, and the same company answers the phone, drives the van, and stands behind the work. There is no dispatch middleman who takes your call, sends the job to whoever is closest, and leaves you guessing who shows up. Our owner and lead technician, David, oversees how jobs are done, and that shows in the small things, like testing every function before we call a job finished.
We run a storefront in Westwood and mobile service vans. That combination matters for fobs in a practical way. If the car runs and you can reach us, you can bring it in. If the car is stuck in a garage or parking spot, the work comes to you. Our phone is answered 24 hours a day, seven days a week, all year, so a lost fob on a holiday is still a call we pick up. For more on how our vans work, see our mobile locksmith service page.
One thing worth knowing about any locksmith you call: California requires locksmith companies to hold a BSIS LCO license, and you are entitled to ask any company for it before they start work. Asking takes ten seconds and tells you a lot about who you are dealing with.
Key fob replacement around Toluca Lake: what it looks like here
Toluca Lake sits in ZIP code 91602, and it is a small neighborhood with a few very different living situations packed close together. Those differences shape where and how fob calls happen.
In the lake enclave and the estate streets near Lakeside Golf Club, many homes sit behind gates and privacy hedges. A driver who loses a fob there often needs us to come to the property rather than make the trip out, and a gated drive means coordinating access ahead of time. If your car is parked in a garage at an estate, tell us on the call so we know how to reach it. The older 1920s and 30s homes in the neighborhood can have cramped or detached garages, which is something we plan for.
Along Riverside Drive, low-rise condos and apartments change the picture. A resident who loses a fob in a condo building often has a car in an assigned or tucked-away parking spot, and the first question is whether the car can be started or even unlocked. If you are locked out as well as missing the fob, we can handle that in the same visit; our car lockout page explains how. The Riverside Drive village commercial district also has street parking where a stranded driver may be waiting, so tell us which block you are on.
West Toluca Lake, Toluca Woods, and Toluca Terrace sit next to the main neighborhood on the North Hollywood side, and we cover those the same way. Our storefront is about 15 miles from Toluca Lake, so for most fob jobs the mobile van is the practical choice rather than asking you to drive over to Westwood. The climate here is ordinary southeast valley heat in summer. That is worth a thought for fobs, because a plastic fob left on a dashboard in summer sun can warp or fail, and that is one of the quieter reasons people call us.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Before you replace it: what to check first
Not every dead fob needs replacing. A few minutes of checking can save you the whole job, and we are happy to talk you through it on the phone even if it means you do not need us.
If none of that works, or the fob is physically broken, replacement is the right move. If your problem is that the car will not start with a key that otherwise works, that may be an ignition or chip issue instead, and our ignition repair page covers when that is the case.
- Try a fresh battery. Most fobs take a small coin battery, and a weak one causes range problems or intermittent failure long before it stops entirely. Replace it with the exact type printed on the old one.
- For a smart key that will not start the car, hold the fob against the start button or the spot your owner's manual names. Many cars read a nearly dead fob at very close range.
- Use the hidden emergency blade to open the door if the remote does not work, so you are not stuck outside the car.
- Check for water or impact damage. If the fob was dropped in the lake, a pool, or a washing machine, the electronics may be gone even if the case looks fine.
- Look for a spare. If you have a second fob anywhere, that is worth knowing before you decide anything, because it changes how the job is done.
Should you make a spare key fob now?
Yes, if you have only one working fob. Copying from a key that works is generally simpler than creating a first key when every one is lost, and it costs you an hour instead of a day of disruption. A spare also keeps you mobile if the original is damaged or lost on a trip.
If all your keys are already gone, our lost car key replacement service covers that situation specifically, and we can program a spare in the same visit. For broader options on car keys, our car key replacement page shows how fobs fit in with other key types, and our automotive locksmith page lists everything we do for vehicles.
For vehicles with a chip in a plain metal key rather than a remote, see transponder key programming. And if you are stuck right now at any hour, our 24-hour locksmith page explains how we handle late-night and holiday calls.
Frequently asked questions
Can you program a key fob if I lost every key to my car?
In many cases, yes. When every key is lost, the job is more involved because the car has to accept a brand-new key without a working one to start from. Whether we can do it depends on the vehicle, so we confirm by VIN or in person first. If your car turns out to be dealer-only, we tell you plainly.
Is it cheaper to replace a key fob with a locksmith than at the dealer?
Often the locksmith route is more economical, partly because we come to you and you avoid towing the car. But it depends on the vehicle, and for some cars the dealer is the only place that can do the programming. We do not quote numbers online, but we can explain what drives the cost when you call (213) 577-1366.
Do you come to Toluca Lake, or do I have to bring the car in?
We come to you. Our mobile vans serve Toluca Lake, including gated estates, Riverside Drive condos, and nearby streets in ZIP 91602. If you prefer, you can also bring the car to our storefront at 10740 Wilshire Blvd in Westwood. Tell us the exact address or cross street when you call.
What is the difference between a remote key and a proximity key?
A remote key has buttons for lock, unlock, and trunk, and a metal blade that turns in the ignition. A proximity or smart key communicates wirelessly with the car, so you can unlock and start the engine without taking it out of your pocket. Cars with a start button almost always use the proximity type.
Can you replace a push-button start key fob?
We handle many of them. Push-button start fobs need to be programmed to the car's computer, and the hidden emergency blade, if there is one, must be cut properly. Compatibility varies by year, make, and model, so we confirm by VIN before we commit to the job.
What do I need to show you before you make a new fob?
We need to confirm that you own or are authorized to use the vehicle. Bring your registration or title and a government-issued photo ID that matches. This is a standard requirement for any reputable locksmith and protects you if your wallet or keys were stolen.
My fob stopped working. Is it just the battery?
Sometimes. A weak battery is the most common cause of a fob with shortened range or intermittent failure. Replacing it with the matching type often fixes it. If a new battery does not help, or the fob has been dropped or soaked, the electronics are likely damaged and replacement is the next step.
Will my old lost fob still work after you program a new one?
We can remove a lost fob from the car's memory during programming so it can no longer open or start the vehicle. That is part of how we handle a lost fob, because someone who finds it should not be able to use it. Ask us to confirm this for your specific model when you call.
Do you offer key fob programming at night or on weekends?
Yes. Our phone is answered around the clock, every day of the year, at (213) 577-1366. After-hours and holiday visits differ in cost from daytime work, and we explain what applies to your situation when we talk.
More locksmith help in Toluca Lake
Key Fob Replacement near Toluca Lake
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
