What counts as a key fob, and why it matters for the replacement
People use the words key fob for a few different things, and the difference changes how the replacement is done. Before we talk about a plan, we sort out which kind you have.
A plain remote only locks and unlocks the doors and sometimes pops the trunk. It has no key in it, and some cars use one alongside a separate metal key. A remote head key is a metal blade with the buttons built into the head. A flip key folds the blade into the fob. A proximity key, also called a smart key, can stay in your pocket or bag. The car senses it nearby, and you start the engine with a button instead of turning a key. That last kind is what people mean when they search for push to start key replacement or push button start key replacement.
All of these are electronic, and a replacement has to be introduced to the car before it will do anything. Buying a fob online and dropping it in the glove box does not solve the problem by itself. What we can do on your particular car depends on the make, model, year, and how its security system is built, and we say so plainly on the phone instead of guessing.
- Remote only: locks, unlocks, and trunk release, with no key blade.
- Remote head key or flip key: a cut blade plus buttons, often with a transponder chip inside.
- Proximity or smart key: no turning, just a start button, and the car looks for the fob nearby.
- Emergency blade inside a smart fob: a hidden mechanical key for the door if the fob battery dies.
Why fobs get lost, damaged, or stop working
Most fob calls come down to a short list of causes. The fob was lost. It went through the wash or fell in a puddle. The case cracked and the circuit board inside got knocked loose. The buttons wore out from years of daily use. Or the fob simply quit and a new battery did not bring it back.
The battery is the cheap first thing to check, and we will tell you to try it before paying for anything bigger. If a fresh battery does not help, the usual next questions are whether the car still recognizes the fob at all, and whether you have any working key left. Those two answers decide most of the job.
Sometimes the fob is fine and the problem is on the car side, such as a weak car battery, an antenna issue, or a worn ignition. We would rather find that out at the start than sell you a fob that was never the problem. If the trouble is the ignition itself, that is a different repair, and we cover it on our ignition repair page.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How we handle key fob replacement and programming step by step
The process is the same whether you call from a driveway, an apartment lot, or a workplace parking space. We keep it simple and tell you where things stand at each stage.
- You call (213) 577-1366 and tell us the year, make, and model, what type of fob you have, and how many working keys remain, if any. If you can read us the VIN from the dash or door jamb, even better.
- We tell you whether your car is one we can handle on site, what the job involves, and what drives the price. If your vehicle is a case where the dealer is the only option, we say that before anyone drives out.
- We come to you with a mobile van, or you bring the car to our Westwood storefront at 10740 Wilshire Blvd. Whichever suits your situation.
- We confirm the vehicle and your ownership before doing any key work. Expect to show ID and proof the car is yours, such as registration.
- We prepare the replacement fob. That may mean matching the right frequency and part, cutting an emergency blade, or both.
- We program the fob to the car and test every button, the door locks, the trunk, and the start function for push-button cars.
- If you want a spare, we program it in the same visit, because adding a second fob while we are already connected to the car is the easy time to do it.
- If an old lost fob should no longer work, we discuss whether your car's system lets us remove it, and we do that when it does.
Can you make a new fob if I lost every key?
Often yes, but it is a harder job than copying a fob you still have. With no working key, the car has nothing to copy from, so the replacement is built from the car's own information, usually tied to the VIN. That is why we ask for it.
This is where we are careful to be honest. For some makes and years, the process can be done in the field. For others, the manufacturer limits the procedure so that only the dealer can complete it, or it needs parts or codes we cannot get. We do not claim to know that in advance for your exact car. We confirm by VIN and in person, and if your car turns out to be dealer-only, we tell you straight so you do not lose time.
If you are in the all-keys-lost situation, our page on lost car key replacement covers how that wider job works. If your fob has a chip-based key that needs to be matched to the car, the details are on our transponder key programming page. For general key cutting and replacement across vehicle types, see car key replacement.
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 in Paramount?
We do not publish flat numbers for fobs, because the same job on two different cars can be very different. Here is what actually moves the cost, so you can judge any quote you get from us or anyone else.
The fob itself is the biggest variable. A basic remote is a simpler part than a proximity key with a start button and a hidden blade. Parts for some makes are plentiful, and for others they are specialized. Whether the fob comes as a quality equivalent or a manufacturer part also changes things, and we talk through that with you.
Programming difficulty is the second factor. Adding a spare when you still have a working key is usually the lighter-cost route. Replacing when every key is gone takes more steps and more equipment. Some systems need extra security procedures before they accept a new key.
Location and timing matter too. A mobile visit has travel built into it, and a late-night call involves different logistics than a daytime appointment at the storefront. The more complete the information you give us, the closer the quote on the phone will be to the final one.
- Type of fob: remote only, remote head key, flip key, or proximity smart key.
- Make, model, and year, which decide the part and the programming method.
- Whether you have a working key to work from, or all keys are lost.
- Whether an emergency blade must be cut.
- How many fobs you want programmed in the same visit.
- Mobile visit versus bringing the car to the storefront.
Mobile key fob programming or the storefront: which makes sense?
For most people with a lost fob, the mobile option is the practical one. If the car cannot be started or driven safely, you should not be dragging it across town. Our vans come to you, and the work happens at the car. For more on how that side of the company runs, see our mobile locksmith page.
The storefront on Wilshire Boulevard in Westwood is for people who can drive in, or who want to bring a fob they already have for a check or battery swap. Paramount is about 23 miles from our base, so the mobile option is the usual choice, and we plan the visit around that on the call.
If the issue is that your fob is locked inside the car, that is a lockout and not a replacement job, and we handle it separately. Our car lockout page explains how that works. It is common for a lockout call to turn into a fob question once we see the damage.
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 we serve 140 cities across Los Angeles and Ventura counties. We are one company with a real storefront at 10740 Wilshire Blvd and our own mobile vans, not a call center that passes your job to whoever picks it up. When you call (213) 577-1366, you are talking to us, around the clock, every day of the year.
David, the owner and lead technician, oversees how the work is done. That matters on fob jobs because the failures we see are usually from shortcuts: a fob programmed halfway, a spare that does not start the car, a buyer who was never told a car was dealer-only.
One thing worth doing with any locksmith, including us: ask for the BSIS license. California requires locksmith companies to hold a Bureau of Security and Investigative Services LCO license, and you are entitled to ask to see it before work begins. It is a reasonable question and any serious company expects it.
We will also tell you when a job is not worth doing. If a battery swap fixes your fob, we say so. If your car is dealer-only, we say so. That honesty is the whole reason repeat customers call back.
Key fob help around Paramount and the 90723 ZIP code
Paramount is a flat, compact city in the southeast county, and most calls here come from daily-use parking situations, not anything exotic. Paramount began in 1948 from the dairy towns of Hynes and Clearwater, and the city today has many small postwar single-family homes alongside a high share of renters, plus numerous apartment complexes built in the 1960s through the 1980s and several mobile home parks.
That mix shapes fob calls. In apartment buildings along the Paramount Boulevard and Downey Avenue corridors, residents often park in shared lots, and a fob dropped, lent out, or left in a jacket for a spouse is a common story. If you are locked out of both your car and your unit, our apartment lockout page covers the building side while we handle the car.
Drivers in the 90723 ZIP code who work in the industrial areas near Alondra Boulevard and Garfield Avenue sometimes need a spare fob programmed ahead of time, so a lost fob does not cost them a shift. We can set up that spare at your home near the Somerset Boulevard area or the Rosecrans Avenue corridor, or at the car wherever it is parked.
Residents of Paramount's mobile home parks also tend to park right by the home, which makes a visit from our van simple. We bring the equipment to the driveway or space.
Climate is rarely the problem here. The morning marine layer and mild temperatures are easy on fob electronics, and salt-air corrosion is not a meaningful factor in Paramount. Where we do see damage is from moisture of the ordinary kind: a fob that went through the laundry, or a rainy-season soak in a pocket. A fob that took a bath often needs replacing, not just a new battery, and we can tell on arrival.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What to have ready before you call
A few details make the call faster and the quote more accurate. None of it is complicated, and you can give most of it from your phone while standing next to the car.
If you have a spare fob you did not know you had, check the usual spots: a drawer, a coat, a relative's house. A spare turns a bigger job into a simpler one, and it saves you from the all-keys-lost situation next time. And if you have only one fob left, the best moment to make a second is now, before the first one disappears. Our key duplication page covers the broader side of copying keys.
- Year, make, and model of the car.
- The VIN, visible through the windshield on the driver's side or on the door jamb sticker.
- What kind of key you have: remote, flip key, or push-button start smart key.
- How many working keys or fobs you still have, including any in someone else's hands.
- Your registration and ID, since we confirm ownership before programming.
- Where the car is parked and whether it can be moved.
Frequently asked questions
How do I get a replacement key fob in Paramount without going to the dealer?
Call (213) 577-1366 with your car's year, make, model, and VIN if you have it. For many vehicles, we replace and program the fob at your car with a mobile van. Some makes and years are dealer-only, and we tell you that honestly when we confirm by VIN, before anyone drives out.
Can you program a key fob I bought online?
Sometimes. It depends on whether the fob is the right type for your car and whether it has been previously locked to another vehicle. Some used or mismatched fobs cannot be reused. Call us before you buy one so we can tell you what will work, and we will check any fob you already have before starting.
I lost my only key fob. Can you still make a new one?
In many cases, yes. With no working key, the job involves more steps and is usually built from the car's VIN. For certain vehicles, only the dealer can complete it. We confirm by VIN and in person, and we tell you straight if your car falls in that group.
Is my push-button start fob dead, or just the battery?
Try a new battery first, since that is the lighter-cost fix. If the car still does not recognize the fob, it may need replacing or the problem may be on the car side. Your owner's manual usually shows a backup way to start the car with a weak fob, and we can walk you through it over the phone.
Will my old lost fob still work after you program a new one?
It depends on the car. On many systems, we can remove a lost fob from the car's memory so it no longer works, which is a good idea if it could be in someone else's hands. We tell you whether your system allows that before we begin.
How much does key fob replacement cost?
We do not give flat prices because they vary too much by car. The cost depends on the type of fob, your make and year, whether you have a working key, how many fobs you want, and whether we come to you. Call with your details and we explain what applies to your car.
Do you come to apartment complexes and mobile home parks in Paramount?
Yes. Our mobile vans work at apartment lots, driveways, workplaces, and mobile home parks, wherever the car is parked. The work is done at the car, so you do not need to move it.
Can I call at night or on a weekend for a key fob?
Yes. Our phone is answered 24 hours a day, 7 days a week, all year, at (213) 577-1366. If the job needs a daytime step, such as a parts check, we tell you that during the call.
More locksmith help in Paramount
Key Fob Replacement near Paramount
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.