What counts as a key fob replacement?
People use the word fob for a few different things, and the difference decides how the job goes. Sorting out which one you have is the first thing we do on the phone.
A remote key head or flip key is a metal blade with the buttons built into the same body. A separate remote is a plastic fob that rides on your ring next to a traditional key. A proximity key, often called a smart key, has no blade you ever put in a door. It talks to the car by radio, so the doors unlock when you walk up and the engine starts with a button. Each type has its own electronics, and each one has to be introduced to the car before the car will accept it.
Replacing a fob is two jobs in one. The first is getting a physical fob that is correct for your vehicle. The second is programming it, so the car recognizes it and, on most vehicles, cuts the old one out of the system if you ask us to. A fob that is not programmed is a piece of plastic. Programming done wrong can leave you with a fob that unlocks the doors but will not start the car.
- Remote head key or flip key: blade and remote in one piece
- Separate remote fob: buttons only, used alongside a regular key
- Proximity or smart key: keyless entry and push to start, no blade in normal use
- Emergency blade: the hidden key inside many smart fobs, for when the fob battery is dead
Why do key fobs need replacing?
The most common reason is simple loss. The fob is in a jacket at a restaurant, in a bag on a bus, or somewhere in the house nobody has checked yet. The second most common is damage: a fob that went through the wash, cracked its case, got stepped on in a parking lot, or has buttons worn smooth after years of daily use.
Before you pay anyone to replace a fob, check the battery. A fob that works from a few inches away, or only on some days, is often just a weak coin cell. Many fobs open with a small seam or a slot, and the battery type is usually printed on it. If a fresh battery brings it back, you have saved yourself a service call. We would rather tell you that than sell you a new fob you did not need.
If the battery is fine and the fob still does nothing, the cause is usually one of a few things. The internal board may be damaged, the fob may have lost its pairing, or the car itself may have a receiver fault. We can often tell which one it is by testing the fob and the car together, which is one reason we prefer to work on the vehicle in person rather than guess over the phone.
- Lost fob, with or without a spare
- Cracked case, worn buttons, or water damage
- Fob works only at very close range, which is often a battery
- Fob lights up but the car does not respond, which may be a pairing or receiver issue
- Push-button start shows a key-not-detected message
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?
Every vehicle is a little different, but the job follows the same order. Here is how it goes when you call us for mobile key fob programming or bring the car to the shop.
- You call (213) 577-1366 and a real person answers. We ask the year, make, and model, what type of key you have now, and whether you have any working key or fob left.
- We confirm the vehicle and ownership. Expect to show a photo ID and proof the car is yours, such as registration or title. This protects you as much as us, and we will not skip it.
- We confirm the details by VIN and in person. Fob frequencies, chip types, and programming procedures vary by manufacturer and even by model year, so we do not promise anything over the phone that the vehicle itself has not confirmed.
- We source the correct fob or smart key for your car. If your original fob is still working, we can use it as a reference. If it is not, we work from the VIN.
- If the key has a blade, it is cut to the code or to the lock. Smart keys with an emergency blade get that cut too.
- We program the new fob to the vehicle using professional equipment, then test every function: lock, unlock, trunk or hatch, panic, remote start if equipped, and starting the engine.
- If you want old fobs removed from the car's memory, which is wise after a lost fob, we tell you whether your vehicle allows it and do it before we leave.
- You get every key you have, tested and working, before we pack up.
Can a locksmith do it, or do I need the dealer?
For many vehicles a locksmith can supply and program a fob without a trip to the dealership. For some, we cannot. A few manufacturers lock certain keys and procedures behind dealer-only access, and some newer systems need security data we cannot reach. We would rather say that plainly on the phone than have you wait for a technician who then cannot finish the job.
Because we confirm by VIN and in person, we will tell you early whether your vehicle falls in the can-do group or the dealer-only group. If it is dealer-only, you will hear that from us directly, and we will say what we can still help with, such as getting you into the car or unlocking it so it can be towed or driven to the dealer. Our page on car lockout service in Monterey Park covers that side of things.
The practical difference for most people is convenience. A locksmith who comes to your car means no tow, no waiting for a service appointment, and no having to get a car you cannot start to a dealership first.
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 do not quote numbers in a web page, because the honest answer depends on your car. Here is what actually moves the cost, so you can judge any quote you receive from us or anyone else.
The type of key is the biggest factor. A simple remote costs a different amount than a proximity smart key, and a smart key for one brand can be very different from one for another. The vehicle's make, model, and year matter because they determine which fob hardware is needed and how much programming is involved.
Whether you have a working key matters a lot. Cloning or adding a fob when you still have one is usually the lighter-cost route. Starting from nothing, called an all-keys-lost situation, takes more work because the car has to be told to accept a brand-new key without any existing one to learn from.
Other factors include whether the blade needs cutting, whether you want old fobs erased from the car, whether the fob is a genuine factory part or a quality aftermarket one, and whether we come to you or you come to us. Time of day can also play a part, since service in the middle of the night is a different call than a weekday afternoon.
Ask for the full price before work starts, including anything on top of the fob itself. A trustworthy locksmith can explain the quote line by line.
- Key type: basic remote, flip key, or proximity smart key
- Vehicle make, model, and year
- Whether any working key is available to copy from
- Blade cutting and emergency key needs
- Erasing lost fobs from the car's memory
- Factory fob versus aftermarket fob
- Location and time of day for mobile service
What if I lost my only fob, or I only have one left?
If you have one working fob, get a spare made now. Making a spare fob while you still have a working one is almost always easier and more economical than replacing after everything is lost. A spare also protects you from a bad morning where the only fob dies, goes through the wash, or gets left in a rental.
If you have lost every fob, it is still fixable in most cases, but the process is longer. We cover that in detail on our lost car key replacement page. For general work on keys that have a chip but no remote buttons, see transponder key programming.
If your car has a fob but also has trouble turning in the ignition, or the key will not go in at all, the fob may not be the real problem. That can be a worn ignition cylinder, and our ignition repair page explains what that involves.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Key fob service around Monterey Park
Monterey Park sits about 19 miles from our Westwood storefront at 10740 Wilshire Blvd, and we serve both of its ZIP codes, 91754 and 91755, with mobile vans. Most fob calls here come from a few familiar situations.
Near East Los Angeles College, in the southwest part of the city, a common call is the lost or damaged fob. A student or staff member parks for a full day, and the fob is gone by the time they walk back. A car you cannot unlock or start in a campus lot is a poor place to be stuck, and mobile fob programming means we come to the vehicle instead of you arranging a tow.
Along the Atlantic Boulevard business district and the Garvey Avenue corridor, people who work in restaurants and shops often carry a single fob on a crowded ring. Those rings take a lot of wear, and the fob is usually the part that gives out first. If you work a late shift, our 24-hour phone line matters, since a dead fob at closing time does not wait for morning.
In the Monterey Highlands in the northeast hills, many homes have long driveways and detached garages. That means the car often sits well away from the house, and a fob that goes missing can be hard to track down. We can work in a driveway or a garage as long as the car is accessible, and we do not need to move it.
Condo and townhome residents along Atlantic Boulevard and Garvey Avenue often deal with shared garages or gated parking. Tell us where the car is when you call, because the way into a building can affect how we plan the visit.
As for the weather, Monterey Park's warm summers and marine-layer mornings do not do anything special to a fob. If a fob fails, it is almost always wear, water, or battery, not the local climate.
Why call Wilshire Lock & Key for a key fob?
We have been in business since 1987. We run a real storefront in Westwood and mobile service vans, so you are dealing with one company, not a call center that passes your job to whoever is closest. The person who answers (213) 577-1366 works for the same business that sends the technician.
David, the owner and lead technician, oversees our work. When a fob job gets difficult, such as a vehicle with unusual programming or an all-keys-lost situation, that experience is behind it.
We are also honest about limits. Some vehicles are dealer-only, and some fobs need a visit to the shop rather than a roadside fix. We would rather tell you that on the first call.
One more thing worth knowing: California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for their license number before work begins. That applies to us and to everyone else. If a company will not give it to you, move on.
If you want to see how our broader automotive work fits together, our automotive locksmith page is the overview, and you can read about how mobile locksmith service works in the city. Our locations page lists the other areas we cover.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What should I have ready when I call?
A little preparation shortens the call and avoids surprises. None of this is required to call, but it helps us tell you quickly what is possible.
The vehicle's year, make, and model come first, followed by whether it has a push-button start. If you can read the VIN, found on the dashboard near the windshield or the driver's door jamb, say it out loud. Tell us how many fobs you had and how many still work. If you have a damaged fob, keep it, since we can often learn something from it.
Have your ID and proof of ownership with you for the visit. Finally, tell us where the car is parked and whether we can reach it easily. That includes gate codes, garage levels, or a long driveway.
- Year, make, and model of the car
- Push-button start or a key you turn
- VIN, if you can read it
- How many fobs you have and how many work
- ID and proof of ownership
- Exact parking location and any access details
Frequently asked questions
Can you make a new key fob if I lost all of mine?
In many cases, yes. It is called an all-keys-lost job, and it takes more work than adding a spare because there is no working fob to learn from. We confirm what your vehicle allows by VIN and in person. A few makes and models are dealer-only, and we will tell you plainly if yours is one of them.
Do you come to me in Monterey Park, or do I have to bring the car in?
We offer mobile key fob programming throughout Monterey Park, including both ZIP codes 91754 and 91755. You can also come to our storefront at 10740 Wilshire Blvd in Westwood. For a car that will not start, having us come to you is usually simpler.
Is my fob dead, or is it just the battery?
Try the battery first. A fob that works only up close, or only sometimes, often just needs a new coin cell. If a fresh battery changes nothing, the fob may have failed or lost its pairing with the car. We can test both.
What is the difference between a remote key and a smart key?
A remote key has buttons and usually a blade you put in the ignition or door. A smart key, also called a proximity key, lets you unlock and start the car with a push button without using a blade. They use different hardware, so we need to know which you have.
Can you replace a push-to-start key?
Often yes. Push-to-start and push-button start fobs can be replaced and programmed for many vehicles, but not every model. We confirm by VIN and in person before promising anything, and we tell you honestly if the car is dealer-only.
Should I get a spare key fob now?
Yes, if you still have a working one. Adding a spare while you have a working fob is usually easier and more economical than starting over after losing every key. It also keeps you from being stranded if your only fob fails.
Will the old lost fob still work after you program a new one?
It depends on the vehicle. On many cars, we can erase old fobs from the car's memory so a lost one cannot be used. Some vehicles do not allow this. Ask us when you call, and we will tell you what your car supports.
What do I need to show you to get a fob made?
A photo ID and proof that the car is yours, such as registration or title. We ask every time because it protects owners. If you are unsure whether your paperwork is enough, call (213) 577-1366 and we can walk through it.
How do I know a locksmith is legitimate?
California requires locksmith companies to hold a BSIS LCO license. Ask any locksmith for that license number before work starts, and get the full cost explained up front. A reputable company will have no trouble doing both.
Do you work on key fobs at night or on weekends?
Our phone line at (213) 577-1366 is answered 24 hours a day, 7 days a week, year-round. Call any time, and we will tell you what we can do and what the next step is.
More locksmith help in Monterey Park
Key Fob Replacement near Monterey Park
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
