What should you do when a key fob is lost, broken, or just stops working?
A key fob usually fails in one of a few ways. It gets lost. The case cracks after a drop. The rubber buttons wear through. It goes through the wash or sits in a puddle. Or it stops talking to the car for no obvious reason. Each of those has a different fix, and the first job is figuring out which one you actually have.
Plenty of fobs that seem dead just need a new battery. If that's your problem, we'll say so and point you to the simple fix instead of selling you a new remote. If the electronics are damaged, the fob is gone, or the car no longer recognizes it, then you need a replacement fob cut, paired, and programmed to your specific vehicle. That is what this page covers.
The work has to happen at the car. Programming a fob means connecting to the vehicle, and on many models it means working with the immobilizer, so it isn't something we can do over the phone or from a shop counter. That's one reason we run mobile vans. If you want the broader picture of how we handle automotive keys, see our page on car key replacement in Rowland Heights.
Which type of key fob do you have?
People use several names for the same few things, and the name matters because the process and the cost depend on the type. When you call, a quick description of what you have helps us plan the right equipment before the van is on its way.
If your key has a chip but no buttons, you don't have a fob. You have a transponder key, and that's a slightly different job covered on our transponder key programming page.
- Remote head key: a metal blade fixed to a plastic head with lock, unlock, and sometimes trunk or panic buttons. The blade starts the car and the buttons work the doors.
- Flip key: the blade folds into the fob and swings out when you need it. These have more moving parts, so the hinge is a common failure point.
- Separate remote fob: a buttons-only fob that rides on a ring next to a plain or chipped key. Replacing it is often more straightforward than replacing a combined unit, but it still has to be paired to the car.
- Proximity or smart key: no blade needed to start the car. The car senses the fob in your pocket or bag, and you press a button to start. This covers what people search for as push to start key replacement or push button start key replacement. Most carry a hidden emergency blade for the door.
- Fobs with remote start or a hatch button: extra functions that have to be tested after programming, not just assumed to work.
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, step by step?
The process is the same in outline for every vehicle, but the details change with the make, model, and year. We don't guess at those details. We confirm them against your VIN before we promise anything.
- You call (213) 577-1366 and tell us the make, model, and year, what kind of fob you have or had, and whether any working key is left. The line is answered 24 hours a day, every day.
- We ask where the car is parked and whether it starts and moves, since programming has to be done with the vehicle present.
- A van comes to you. Before any work starts, we check that you own or are authorized to use the vehicle. That means a photo ID and proof such as registration or title that matches the car. This protects you and every other driver in the neighborhood.
- We read the VIN and confirm which fob your car takes and how it gets programmed. Some cars accept on-board procedures, some need diagnostic equipment, and a few brands or model years limit programming to the dealer. We'll tell you which category yours falls into.
- If you need a blade, we cut it. Then we pair the new fob to the car and program its functions.
- On vehicles that allow it, we remove a lost fob from the car's memory so that whoever finds it can't use it to unlock or start your car.
- We test everything with you present: lock, unlock, trunk or hatch, panic button, remote start if equipped, and starting the engine. A fob that opens the door but won't start the car isn't finished.
What if you've lost every fob, or you only have one left?
Those are two very different situations. If you still have one working fob, adding a spare is usually the simpler job. The car can be told to accept an additional fob while it still recognizes the existing one. Having a spare key fob made now is often the more economical route compared with waiting until the last one disappears.
If every fob is gone, the car has nothing to compare against, and the job gets more involved. The vehicle may need to be reset to accept new keys, and on some models that means more equipment and more steps. Our page on lost car key replacement goes through what that process looks like.
In either case, we'll tell you plainly what your vehicle requires. Some cars are friendly to aftermarket programming. Others aren't. We confirm by VIN or in person rather than quote from a chart that might not match your car.
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 don't quote numbers on a web page because the honest answer depends on your car. Here is what moves the price, so you can judge any quote you get, ours or anyone else's.
- The fob itself: a basic remote costs a lot less to source than a smart key with a proximity chip and a built-in emergency blade.
- Vehicle make, model, and year: security systems differ widely, and newer systems tend to require more specialized equipment and more steps.
- Whether you have a working key: adding a spare is typically a lighter job than an all-keys-lost situation.
- Blade cutting: if the fob needs a cut key or an emergency blade, that adds work.
- Number of fobs: programming two at once is usually more efficient than coming back later for a second.
- Where and when: a service call to your location involves travel, and late-night or holiday calls take different scheduling than a daytime visit.
- Condition of the car: a dead battery or a faulty ignition can complicate programming and should be sorted out first.
Should you go to the dealer or a locksmith for a replacement fob?
Both are legitimate options, and we won't pretend one is always right. For many vehicles, a locksmith can supply and program a fob at the curb where the car is parked, which saves you from arranging a tow or a trip. That's the main reason people call us.
But some makes and model years are effectively dealer-only. The manufacturer may lock programming behind its own system, or the fob may be available only through its parts channel. When we check your VIN and find that's the case, we'll tell you so rather than start a job we can't finish properly. If your car is in that group, the dealer is the right call and you'll hear it from us up front.
A good rule of thumb: if you need the work done where the car sits, or you can't drive it, a mobile locksmith is often the practical choice. If the dealer is the only source, you'll know quickly.
Where in Rowland Heights do we handle key fob work?
Rowland Heights is an unincorporated community in Los Angeles County with a single ZIP code, 91748, and our mobile vans cover all of it. Our storefront is on Wilshire Boulevard in Westwood, about 34 miles away, so the vans come to you instead of you coming to us. Key fob problems tend to show up in a few recognizable settings here.
Along the Colima Road corridor, a lot of people live in condo and townhome complexes. A fob goes missing and the car sits in an assigned space or a shared garage, where it can't easily be moved. We program the replacement where the car is parked. The Fullerton Road corridor and the Nogales Street corridor have the same mix of homes and daily commuters, and a dead or lost fob there usually means someone can't get to work.
The shopping plazas along Colima Road and Fullerton Road are another common spot. A restaurant worker whose fob dies mid-shift, or a shopper who finds the fob gone from a pocket, needs the car handled in the lot instead of towed away.
In the hillside neighborhoods south of Pathfinder Road, many homes have steep driveways and some sit behind gates. Parking on a slope is no obstacle for programming, but it's a good reason to tell us the car's exact location when you call. Note that a gate remote and a car fob are two different devices. Programming a car fob doesn't touch your gate opener.
The SR-60 park-and-ride lots come up for a different reason. A commuter locks a fob in the car, or loses it between the bus and the parking space. If you're locked out with the fob inside, our car lockout service gets you in first. If the fob is truly gone, replacement follows.
Summer here is warm to hot and dry, with sun-exposed lots across the hills. Heat isn't kind to plastic cases or small batteries. A fob left on a dashboard in direct sun can fail sooner than one kept in a bag or pocket. It's a small habit worth changing.
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've been in business since 1987 and serve 140 cities across Los Angeles and Ventura counties. We have a storefront at 10740 Wilshire Blvd in Westwood and mobile service vans, so you're dealing with one company from the first phone call to the finished job. There's no dispatch middleman who takes your call and hands it off to a stranger.
David, the owner and lead technician, oversees the work. If your car has an unusual setup, he's the one who decides how to approach it. Our phone is answered around the clock, so if you lose a fob at night, you can talk to someone about it instead of leaving a voicemail. For more on how our overnight service works, see our 24-hour locksmith page, and for how the vans operate, see mobile locksmith service in Rowland Heights.
California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith you hire to show you theirs before work starts. It's a reasonable thing to ask and any legitimate company will understand why you're asking.
If you'd rather send details in writing first, use our contact page and include the make, model, year, and a photo of your current fob if you have one.
What can you check before you call?
A few minutes of checking can sometimes save a service call, and it will definitely make the call itself faster and clearer.
- Try a fresh battery. If the fob's buttons light up briefly or it worked a day ago, the battery is the likely culprit. Check the type printed inside the case.
- Try your spare. If the spare works and the main fob doesn't, the problem is in the fob and not the car.
- Hold the fob right against the start button on a push-to-start car. Many cars have a backup spot to read a weak fob.
- If the fob works the doors but the car won't start or the key won't turn, the issue may be the ignition and not the fob. See our ignition repair page.
- Have your registration or title and photo ID ready, and know where the VIN is visible on the dash or door jamb.
- Write down the make, model, and year, and any buttons your old fob had.
Frequently asked questions
Can you program a key fob at my home or workplace in Rowland Heights?
Yes, in most cases. Programming requires the car to be present, so our mobile vans come to wherever it is parked: a driveway, a condo garage, a shopping plaza lot, or a park-and-ride. We confirm what your specific vehicle needs by VIN before starting.
Do I need my original fob to get a new one?
No. If you still have one working fob, adding a spare is usually simpler. If every fob is lost, we can still often make a new one, though the process involves more steps. Either way, we'll confirm what your vehicle allows before we begin.
What do I need to show to prove the car is mine?
Expect to show a photo ID and proof of ownership or authorization, such as the registration or title, with the details matching the vehicle. We ask every time, because a reputable locksmith shouldn't make a key for a car without it.
Is a push-to-start smart key harder to replace than a regular remote?
Often, yes. Smart keys use proximity technology and tighter security, and the fob itself is typically a more complex part. That affects equipment and cost. Some models are dealer-only, and we'll tell you if yours is one of them.
Can I buy a fob online and have you program it?
Sometimes. Many online fobs are the wrong frequency or part number, are locked to another vehicle, or don't pair reliably. If you already have one, tell us the make, model, and year and what's printed on it. We'll say whether it's likely to work before anyone starts programming.
Will my old lost fob still be able to open my car?
On many vehicles we can erase the lost fob from the car's memory during programming, so it no longer works. Not every model allows that, so we confirm it for your car. If you're worried someone has your fob and knows where you live, tell us.
Are key fob replacement costs the same for every car?
No. The fob type, the vehicle's security system, whether you have a working key, and whether the blade needs cutting all change the price. We explain what's driving the cost on your specific car, and you can decide before work begins.
What if my key fob is locked inside the car?
That's a lockout first and a fob question second. We'll get you into the car, and if the fob is still inside and working, you may not need a replacement at all. If the fob is lost or damaged, we can move straight to programming a new one.
More locksmith help in Rowland Heights
Key Fob Replacement near Rowland Heights
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.