What is a key fob replacement, and which type do you have?
People say 'key fob' for three different things, and the type decides how the job goes. A remote head key is a regular metal key with the lock, unlock, and panic buttons built into the head. A flip key folds the blade into the fob. A smart key, also called a proximity key, lets the car sense the fob in your pocket or bag and is what starts a push-button-start car. Replacing any of them means getting the right physical fob, cutting an emergency blade if it has one, and programming it to your specific vehicle.
Programming is the part people underestimate. A new fob out of the package is blank. The car will not respond to it until the car's computer has been told to accept it, and that takes diagnostic equipment and the correct security procedure for your make, model, and year. Buying a fob online and hoping it pairs is how people end up with a fob the car ignores, or one that was already locked to a different vehicle.
Some remotes only handle the doors, while a chip inside the key blade is what lets the engine run. Those are separate systems. If your key has an immobilizer chip, that side of the job is transponder key programming, and where both apply we handle them in the same visit.
What should you do when your fob dies or goes missing in Hawthorne?
Start with the simple things. A fob that has gone weak is very often just a worn coin-cell battery, and swapping it costs far less than replacing the fob. If the car says it cannot find the key, check your owner's manual too. Most push-button-start cars have a backup way to start with a dead fob, usually by holding the fob against the start button or a marked spot on the dash or console. That gets you home, but it is a workaround and not a repair.
If the battery is fresh and the fob still misbehaves, or if the fob is simply gone, that is when you call. The next question we ask is whether you still have any working key for the car. A spare in a drawer makes this a straightforward add-a-key job. If every key is gone, it is a bigger job, and we cover that separately under lost car key replacement.
A few signs it is time to stop fighting with the fob:
- You press the button several times before the car responds, or you have to stand right next to the door
- The dash shows a 'key not detected' or similar message even with a new battery
- The case is cracked, the buttons are worn smooth, or the fob went through the washing machine
- The fob works for the doors but the car will not start, or the other way around
- You lost the fob and want it removed from the car's memory, not just replaced
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How does mobile key fob programming work, step by step?
The details change by vehicle, but the sequence is the same whether you come to our Westwood storefront or we come to you.
- Call (213) 577-1366. Someone answers at any hour. Tell us the year, make, and model, whether the car has a push button or a key slot, and how many working keys you have left.
- We identify the exact fob by VIN, not by a model-name guess, and tell you what the job needs, including whether any part of it is dealer-only.
- You choose where it happens. Our mobile vans bring cutting and programming equipment to the car, or you can come to 10740 Wilshire Blvd in Westwood.
- We verify ownership. Expect to show photo ID and registration or title that matches the vehicle. Any honest locksmith asks for this.
- If the fob has an emergency blade, we cut it. Then we prepare the new fob for your vehicle.
- We program the fob to the car. On many vehicles, any existing fobs must be re-registered in the same session, so have all of them with you.
- We test everything: lock, unlock, trunk or hatch, panic, proximity entry if your car has it, and starting the engine. If a lost fob is being retired, we remove it from the car's memory where the vehicle allows that.
What do we confirm by VIN, and when is the dealer the only option?
We do not quote a fob job from a model name alone. Two cars with the same name and body can use different frequencies, chips, or fob shapes, and a change partway through a model year is common. The VIN tells us what your particular car expects. That is why our first call with you is mostly questions, and why we would rather confirm than guess.
Some vehicles are simply harder. On certain makes and newer model years, the manufacturer locks key creation behind security access that independent shops cannot always get, or requires a code or part that only the dealer can issue. When your car falls in that group, we will say so plainly and not start a job we cannot finish. You will not be charged to learn that the dealer is the right call.
Sometimes the answer is also smaller than you expected. A worn battery, a cracked shell, or a failed button on an otherwise healthy fob may be fixable without a full replacement. And if the car runs fine but the key will not turn or the car will not crank for another reason, the problem may be the switch and not the fob, which is ignition repair territory. We would rather tell you that on the phone than sell you a fob you do not need.
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 key fob replacement?
We do not give a number before we know your VIN, because the range between a basic remote and a smart key for a newer car is wide. Here is what moves the cost, so you can see why:
- The fob type: a simple remote, a flip key, and a proximity smart key are very different pieces of hardware
- Make, model, and year, which decide the part, the programming method, and how much security is involved
- Whether you have a working key: adding a spare is a lighter job than starting from zero when every key is gone
- How many fobs you need, and whether existing ones must be re-registered at the same time
- Whether the fob has an emergency blade that needs cutting
- Whether a repair, battery, or new shell can do the job instead of a full replacement
- Where and when the service happens: at our storefront, at your car, or after hours
- Whether the vehicle requires a dealer-sourced part or code
Why call Wilshire Lock & Key for a car key fob?
We have been in business since 1987, working from a storefront at 10740 Wilshire Blvd in Los Angeles with mobile service vans. When you call (213) 577-1366, you reach our company, not a call center that sells your job to whoever picks it up. There are no dispatch middlemen between your phone call and the technician at your car, which means the person who quotes you is the company that does the work.
David, the owner and lead technician, oversees our automotive work. That matters on fob jobs, where the small decisions are the ones that go wrong: confirming the VIN, not guessing at a part, and saying when a car belongs at the dealer.
The phone is answered 24 hours a day, 7 days a week, all year, which is how a dead fob usually shows up: late, at a work lot, or on a Sunday. Getting a mobile locksmith to the car is often the more economical route compared with towing a vehicle that will not start.
Key fob replacement around Hawthorne: Hollyglen, Bodger Park, and beyond
Hawthorne is about 15 miles from our Westwood storefront, and ZIP 90250 covers the whole city. A fob problem looks different from one block to the next, but the work is the same: we come to wherever the car is parked.
In the postwar single-family tracts of Hollyglen, Bodger Park, Moneta Gardens, Ramona, and North Hawthorne, most fob calls are someone at home with a dead or missing remote and the car sitting right there. Del Aire, just next door and unincorporated, is the same situation. Along Hawthorne Boulevard and the other commercial corridors, the dingbat-style apartment buildings are where we hear about the lockout calls, and a fob that goes missing in an apartment build-up is the car version of that problem. If you are already locked out of the car, that is a car lockout call first, and fob work second.
The newer gated townhomes at ThreeSixty at South Bay bring a different mix. Residents often have the community gate remote, the home's smart lock, and the car fob all on one ring, and they are three separate systems. We handle the car fob. If the gate hardware is the one misbehaving, that is gate lock repair, so make sure you tell us which one is actually failing.
If you work in the industrial district around Hawthorne Municipal Airport and SpaceX and lose or break a fob during a shift, we can come to the lot, so you do not have to arrange a tow. The marine-layer mornings here are mild, and weather rarely hurts a fob. In Hawthorne the usual culprits are old batteries, daily wear, drops, and the wash cycle.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Should you make a spare key fob before you lose the last one?
Yes, and it is the simplest advice we give. Adding a spare while you still have a working fob is usually a smaller job than replacing keys after the last one disappears. The car can recognize an existing key, the process is more direct, and you are not stuck without a car while it happens.
A few habits make a spare worth having:
- Have the spare programmed and tested, not just bought and stored
- Keep it somewhere other than your main ring, away from the car itself
- Replace the battery in both fobs on the same schedule, not only when one fails
- If your car uses a cut key with no remote, that is a different service, covered under car key replacement
How do you vet a locksmith before they work on your car?
California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, called an LCO license. Ask any locksmith for that number before they start, and check it with the state. It is a fair question, and a real company will answer it without hesitation.
A few other signs separate a legitimate fob job from a bad one. They ask for proof you own the car. They ask for your VIN. They explain what is being done and what drives the cost before they begin. They tell you when the dealer is the right call. Ask us the same questions. We expect them.
Frequently asked questions
How long does key fob programming take?
It depends on the vehicle. Many fobs are cut and programmed in a single visit, but some cars build a timed security procedure into the process, and we will tell you if yours does. We cannot responsibly name a time until we know the VIN and the type of fob.
Can you replace a push-button-start fob if I lost every key?
In many cases, yes. All keys lost is a bigger job than adding a spare, and a few vehicles require dealer-only access. We confirm that by VIN before you commit, and we say plainly if the dealer is the only route for your car.
Is the dealer or a locksmith the lighter-cost option for a fob?
It varies by vehicle. A mobile visit often avoids towing the car, which is usually the more economical route, but some vehicles can only be done at a dealer. Call (213) 577-1366 with your VIN and we will tell you which applies.
What do I need to show you before you program a fob?
Photo ID and registration or title that matches the vehicle. This protects you, because it keeps anyone from getting a key to a car that is not theirs. We will also ask for your VIN and any working fobs you still have.
Can you repair my fob instead of replacing it?
Sometimes. A weak battery, a cracked shell, or worn buttons may be fixable without a full replacement. If the electronics inside have failed, replacement is the realistic answer. We would rather tell you that early than sell you a part you do not need.
Will my old lost fob still start the car after you add a new one?
On many vehicles we can remove the lost fob from the car's memory so it no longer works. This depends on the make and model, and we confirm it for your car before the job. If you think a fob was stolen, tell us when you call.
Can I buy a fob online and have you program it?
Sometimes, but it is a gamble. Online fobs are often the wrong frequency, the wrong chip, or already locked to another vehicle. If you already have one, tell us the details on the phone and we will check whether it can work before anyone starts.
Do you come to Hawthorne at night or on weekends?
Our phone is answered 24 hours a day, 7 days a week, year-round, at (213) 577-1366, and our mobile vans serve Hawthorne. Tell us where the car is and which type of key it uses, and we will go from there.
What should I have ready when I call about a fob?
The year, make, and model, the VIN if you can read it from the dash or door jamb, whether the car has a push button or key slot, and how many working keys you still have. That lets us confirm the fob type quickly.
More locksmith help in Hawthorne
Key Fob Replacement near Hawthorne
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.