What a key fob replacement actually involves
A key fob is a small radio transmitter, and in many cars it is also the thing that tells the engine it is allowed to run. When one stops working or goes missing, people tend to assume the car is finished until a dealer tow and a long wait. Often that is not the case. A new fob has to be cut or matched to the vehicle, then programmed so the car's computer accepts it and, where it makes sense, forgets the lost one. That is work a trained automotive locksmith does in the driveway.
Most of our calls in this category fall into a few situations: the only fob was lost, the fob was dropped or soaked and no longer responds, the battery was replaced and the fob still will not work, or the owner wants a spare before something goes wrong. Each of those is a different job, and the first thing we do on the phone is sort out which one you have, because the answer changes what we bring and what the work involves.
This page is about the fob itself: remote car key replacement, smart car key replacement, proximity key replacement, and push to start key replacement. If your problem is a locked car with the keys inside, that is a different service and we cover it under car lockout. If the key is gone completely and you have nothing to copy from, our lost car key replacement page walks through that case in more detail.
Which kind of fob do you have?
The word fob covers several different pieces of hardware, and the type decides how the replacement is done. Here is how we think about them when someone calls.
- Remote head key: a metal key blade with the lock, unlock, and panic buttons built into the head. It usually needs the blade cut and the electronics programmed, and the key may also carry a transponder chip.
- Separate remote plus a plain key: the buttons live on a standalone fob, and the key is its own item. Sometimes the remote can be replaced without touching the key at all.
- Flip key: the blade folds into the fob body. These have more moving parts and tend to be the ones that crack at the hinge.
- Proximity or smart key: you keep it in a pocket or bag, and the car senses it nearby. These usually come with a push-button start, and they often hold an emergency blade inside the fob.
- Push to start fob without a visible blade: some push button start key replacement jobs involve a fob that looks like a plain remote, with a hidden emergency key tucked inside.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How we handle a key fob replacement, step by step
We keep the process the same on every job so nothing gets skipped, even when the car is parked on a hillside at night and everyone is tired.
- You call (213) 577-1366. Someone answers at any hour, and you tell us the make, model, and year, and whether you have any working key or fob left.
- We ask a few specific questions: is the car a push-button start, does it have a physical key slot, do you have the registration or title, and are you at the vehicle. This tells us what we need to carry.
- We confirm the exact fob and chip details by VIN. Fob parts are not always interchangeable, even within one model year, so we do not guess from the make and model alone.
- We verify that you are the owner or authorized to have a key made. Expect to show ID and proof of ownership such as a registration or title.
- We bring the matching fob or key blank to the car, cut the blade if one is required, and program the new fob to the vehicle.
- We test every button and test starting the car, then test the emergency blade if there is one. If you had a lost fob, we discuss removing it from the car's memory so it cannot be used later.
- You leave with working fobs, and ideally a spare. If the job turns out to need something beyond what we can do on site, we tell you plainly before anything is done.
Can you program a fob at my house? Mobile key fob programming
For most vehicles, yes. We run mobile service vans, so mobile key fob programming means the equipment comes to your driveway, workplace, or wherever the car sits. You do not need to tow it first. Our mobile locksmith service covers this, and the van carries cutting and programming tools for the automotive work described on this page.
We also run a storefront at 10740 Wilshire Blvd in Westwood. If you would rather bring the vehicle in, or if the job is easier with a bench, that is an option. Palos Verdes Estates is about 24 miles from our base, and we plan the trip accordingly instead of promising a time we cannot be sure of on a given night. When you call, we will tell you honestly what to expect based on what is going on that day.
If you searched for a car key fob replacement near me because you are stuck right now, say so when you call. We will tell you whether we can do it where you are or whether the situation calls for something else.
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 on a web page because the honest answer depends on the vehicle, and a number guessed from the internet only sets you up to be disappointed. What we can do is explain what moves the cost up or down, so the quote you hear on the phone makes sense.
The main factors are these:
- The type of fob. A simple remote is a different part than a smart key with proximity sensing and a push-button start, and the parts themselves vary in cost.
- The vehicle's make, model, and year. Some manufacturers use more locked-down systems than others, and that changes both the parts and the programming steps.
- Whether you have a working key to copy. Adding a spare when you still have a working fob is usually the more economical route compared with starting from nothing when every key is lost.
- Whether the blade needs to be cut. Some fobs have a physical emergency key that must be cut to match the locks; others do not.
- Whether a lost fob must be erased from the car's memory. Doing so is good practice, and it adds a step.
- Where the car is and what time it is. Mobile service involves travel, and after-hours calls differ from scheduled daytime work.
- How many fobs you want. Programming more than one in a single visit is generally more efficient than coming back later.
When a dealer is the only route
We would rather tell you this than have you find out after a wasted visit. Some vehicles, particularly certain newer models and certain brands, lock down their key programming so tightly that independent shops cannot complete the job, or can only do so for some model years. In those cases the dealer, using manufacturer access, is the only way to get a working fob.
We do not claim to know that offhand for every car. The accurate answer depends on the VIN and sometimes on seeing the vehicle, so we confirm by VIN or in person before we promise anything. If it turns out your car falls into a dealer-only category, we say so clearly rather than starting a job we cannot finish. You will not be charged for work we know cannot succeed.
The same applies to fobs that are bought online and shipped to you. Cheap unbranded fobs sometimes will not program, or will work for a few weeks and quit. If you already have a fob you ordered, tell us before we arrive, and we will let you know whether we can use it or whether we should bring our own.
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 have been in business since 1987, and that time has given us something useful: we have seen how car key technology changed from plain metal keys to chips to push-button start, and we know the shortcuts that go wrong. David, the owner and lead technician, oversees the work and sets how we do things.
A few honest differences worth knowing about:
- One company, start to finish. The person who answers the phone works for the same company that sends the van. There are no dispatch middlemen passing your job to whoever is closest.
- A storefront and mobile vans. You can come to us in Westwood, or we can come to you, whichever fits the situation.
- Open every hour. Our phone, (213) 577-1366, is answered 24 hours a day, seven days a week, year-round, so a lost fob at midnight gets a real conversation.
- We explain before we work. You will hear what the job involves, what affects the cost, and whether your car is something we can handle.
- We serve 140 cities across Los Angeles and Ventura counties, so we know how to move around the region, including Palos Verdes Estates.
Key fob replacement around Palos Verdes Estates
Palos Verdes Estates is a master-planned city with almost entirely single-family housing, and that shapes how fob calls tend to look. Cars here are usually parked in private driveways and garages, not lots, which suits mobile programming well. We can work next to the car without anyone needing to move it.
In Malaga Cove and Valmonte, many of the homes date from the 1920s through the 1940s, and the properties are laid out with narrow, sloped streets. If you are calling from one of those addresses, give us the street and the nearest cross street so we can find you without delay. Montemalaga and Lunada Bay have more mid-century ranch and view homes, and those calls are often about a spare fob that has been needed for years. Customers in the 90274 ZIP often tell us the household has several drivers and only one working fob, which is a good reason to program a spare before you need one.
The coastal setting matters too. Bluff-top homes near Bluff Cove and Lunada Bay get salt spray and persistent fog, which corrodes exterior locks and hinges faster than inland areas, and marine damp is hard on anything kept near an entry. A fob that lives in a coat pocket, a beach bag, or a hook by the door can pick up moisture over time. If your fob has gotten damp or has begun to respond only intermittently, replace the battery first, and call us if that does not solve it.
One scenario we run into locally is a property transfer or estate sale. When a house changes hands, there is often a vehicle that comes with it, and the family may hold one fob, or none. Programming a new fob and removing the old one from the car's memory is a sensible step for the new owner. If the house is changing hands too, our lock rekey service handles the doors, and we can often coordinate both in one visit. For general automotive questions beyond fobs, our automotive locksmith page gives the full picture.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How to avoid being stranded without a working fob
Most fob emergencies are preventable, and the fix is nearly always the same: have a spare made while you still have a working fob. It is easier, usually more economical, and far less stressful than trying to sort things out at night with a car that will not start.
A few practical habits help. Keep the spare in a place that is not the same bag as the main fob, and not inside the car. Replace fob batteries when the range starts to drop, not after it dies completely. If your fob has a physical emergency blade, find out now where it is hidden and how it works, because a dead battery is a surprise in a driveway. And if you have a transponder key rather than a smart fob, our transponder key programming page explains how chip keys differ.
If you are already locked out or stranded at a late hour, our 24-hour locksmith page describes how nighttime calls work. For anything else, you can reach us directly through our contact page or by phone at (213) 577-1366.
Check the license before anyone touches your car
California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, known as a BSIS LCO license. Ask any locksmith for it before they start work, whether you call us or someone else. A reputable company will give it to you without hesitation.
It is also reasonable to ask whether the person on the phone works for the company that comes to your door, and to ask what the job will involve before the tech arrives. Those two questions filter out most of the trouble people run into when they search in a hurry.
Frequently asked questions
Can you replace a key fob if I have lost every key to the car?
Often, yes. If every key is lost, the job is more involved because there is nothing to copy from, and we confirm the details by VIN and proof of ownership. Some vehicles can only be handled by the dealer, and we will tell you plainly if yours is one of them. See our lost car key replacement page for the longer explanation.
Do I have to tow my car to a dealer to get a new fob?
Not for most vehicles. Our mobile vans carry cutting and programming equipment, so we can usually do the work in your driveway or wherever the car is parked. Where a dealer is genuinely required, we say so after confirming by VIN, before starting.
What is the difference between a remote, a proximity key, and a push to start fob?
A remote is the button-style fob that locks and unlocks. A proximity or smart key is sensed by the car when it is nearby, so you do not need to press anything. A push to start fob is usually a proximity key that works with a start button instead of a key slot. They are programmed differently, which is why we ask what you have when you call.
Will I need proof that the car is mine?
Yes. We ask for ID and proof of ownership, such as a registration or title, before making or programming a fob. It protects you and it is standard practice for a legitimate automotive locksmith.
Can you program a fob I bought online?
Sometimes. Quality varies a lot, and some online fobs do not program or stop working after a short time. Tell us what you have before we come, and we will say whether we can use it or whether we should bring our own.
My fob stopped working but I already changed the battery. What now?
The fob may have lost its pairing, been damaged by moisture or a drop, or failed internally. We can diagnose it by testing the fob and the car. Sometimes reprogramming fixes it, and sometimes the fob needs replacing.
Is it more economical to add a spare fob than to replace a lost one?
Usually, yes. Making a spare while you still have a working fob is generally the more economical route than starting from nothing after every key is lost. The exact difference depends on your vehicle, which we cover on the phone.
Do you come to Palos Verdes Estates at night?
Yes. Our phone line, (213) 577-1366, is answered 24 hours a day, 7 days a week, year-round, and we serve Palos Verdes Estates, including the 90274 ZIP. We will tell you honestly what to expect on arrival when you call.
Will you remove my lost fob from the car's memory?
Where the vehicle allows it, yes, and we recommend it. Erasing the lost fob means that anyone who finds it cannot use it with your car. We confirm what is possible for your specific vehicle.
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Key Fob Replacement near Palos Verdes Estates
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
