What counts as a key fob, and what are we replacing?
'Key fob' is a catch-all word, and the type you carry decides how the replacement works. These are the main kinds we deal with on North Hollywood driveways and in its parking garages.
Each of these can be lost, cracked, soaked, or simply worn out. Replacement means getting a new unit that is compatible with your exact vehicle, cutting the emergency blade if there is one, and programming it so the car accepts it. Whether you need a spare key fob added or a replacement for one that vanished, the outline is the same. The details depend on make, model, year, and VIN, and we confirm those by VIN or in person rather than guessing from a general chart. If your situation is broader than a fob, our car key replacement service page covers the whole picture.
- Remote key with a blade: a metal key with lock, unlock, and trunk buttons built into the head, usually with a transponder chip inside as well.
- Flip key: the same idea, but the blade folds into the fob body.
- Remote-only fob: a separate button fob that operates the doors and trunk but does not start the engine.
- Proximity key, also called a smart car key: it can stay in your pocket while the car senses it nearby.
- Push to start key or push button start key: a proximity key the car must recognize before the start button will do anything.
Why do key fobs stop working in the first place?
Before we replace anything, we check whether you need a replacement at all. A good share of 'my fob is dead' calls turn out to be something simpler, and if a small fix brings it back, we say so, even though that is a smaller job for us.
A fob that has gone through a wash cycle, been dropped hard enough to crack the circuit board, or lost its buttons to years of wear does need to be replaced. So does one that is simply gone.
North Hollywood summers are hot and dry, and a fob left on a dashboard or in a hot cabin is taking more heat than its case and battery were built for. That is not a reason to panic. It is a reason to keep your spare somewhere cool and indoors.
- A weak coin battery, which shows up as shorter range, or as a push-button-start car that says it cannot find the key.
- Worn button pads or corroded contacts inside the case.
- A cracked shell or a board that has taken water.
- On some vehicles, a fob that needs to be resynchronized after a battery change or a dead car battery.
- A fob that is lost or stolen, which is a security issue as well as an inconvenience.
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?
Mobile key fob programming means the work happens where your car is parked, not at a shop. Here is how a typical job goes from the first call to the last test.
- You call (213) 577-1366 and tell us the make, model, year, and where the car is. The VIN, visible through the windshield at the base of the dash or on the driver's door jamb, lets us be exact.
- We tell you what kind of fob the vehicle takes and whether it is something we can do on site or something that needs the dealer. If the data for your vehicle is unclear, we say so and confirm in person rather than promising.
- A mobile van comes to you with fobs, key blanks, cutting and programming equipment on board.
- We confirm that you are the owner or authorized user, using ID and registration or title.
- We cut the emergency blade if your fob has one, then program the new fob to the car.
- We test every function: lock, unlock, trunk, panic, remote start if the car has it, and starting the engine with the key or the button.
- If a fob was lost, we discuss whether it can be removed from the car's memory so it no longer works. Whether that is possible depends on the vehicle.
What if I have lost every key, or the car will not start?
Adding a fob when you still have a working one is usually the simpler job. When every key is gone, the car has to be told to accept a brand-new one without an existing key to learn from. That is a bigger job, and our lost car key replacement page walks through how we handle it.
One honest caveat: a small number of vehicles can only accept new keys through the dealer or the manufacturer's own system. When your VIN tells us that is your situation, we say so on the phone and send you to the dealer instead of taking your call and then walking away. We do not pretend every car is a mobile job.
Sometimes the fob is not the real problem. If a fresh, programmed key will not turn or the car will not crank, the ignition itself may be worn, and that falls under ignition repair. And if the fob is sitting inside a locked car, that is a car lockout first and a fob question second.
What affects the cost of key fob replacement in North Hollywood?
Fob jobs vary more than most locksmith work, so we do not quote a single number for them, and neither should anyone else who has not heard your vehicle details. These are the factors that actually move the cost.
Many people find a mobile locksmith to be the more economical route because there is no tow and no waiting for a dealer appointment. That is not true for every vehicle, though. If your car is dealer-only, the dealer is the right answer and we will tell you so. We talk through the cost on the phone before work starts, once we know what your car needs.
- The type of fob: a basic remote costs a different amount of work and parts than a smart proximity key.
- The vehicle: make, model, year, and the security system behind it determine what hardware and programming it needs.
- Whether you have a working key: copying from an existing key is generally simpler than starting from nothing.
- Whether the fob has an emergency blade that needs to be cut.
- How many fobs you want, since adding a spare during the same visit is often more efficient than a second trip.
- Where you are and when you call. North Hollywood is about 14 miles from our Westwood storefront, and after-hours calls involve different logistics than daytime ones.
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. That is long enough to have watched car keys go from cut metal to transponders to smart fobs and to have learned where the shortcuts cause trouble. We work from a storefront at 10740 Wilshire Blvd in Westwood, and our mobile vans do the driving. When you call, you reach the company that will actually do the work, not a dispatch middleman who sells your job to whoever is free.
David, the owner and lead technician, oversees the work. That matters on fob jobs, where the right call on the phone, such as whether this is mobile-friendly or dealer-only, decides whether your day goes smoothly.
California requires locksmith companies to hold a BSIS LCO license from the Bureau of Security and Investigative Services. Ask any locksmith for that license information before they start working on your vehicle, and check it with the state. It is a fair question and reputable companies expect it.
Our phone, (213) 577-1366, is answered 24 hours a day, 7 days a week, year-round. Fobs go missing at night, on weekends, and on holidays, and the line is staffed regardless.
Key fob replacement around North Hollywood: where this comes up
North Hollywood covers ZIP codes 91601, 91602, 91605, and 91606, and a fob problem can happen in any of them. Our vans cover the whole area, including the NoHo Arts District, Toluca Woods, West Toluca Lake, Valley Plaza, and the commercial stretches along Lankershim and Magnolia Boulevards.
The housing mix shapes how fob calls look here. Interior streets have 1920s-40s bungalows, there is a large postwar apartment stock, and newer transit-oriented mid-rise buildings have gone up around the North Hollywood Metro station. That means your car might be in a driveway, in an apartment garage, or on the street, and a mobile technician works in all of those. If you have just moved into one of the newer NoHo Arts District buildings and your only fob is lost, we can come to the garage where the car sits.
One of the scenarios we hear about in this area is car key replacement near the North Hollywood Metro B/G Line Station. A commuter parks, rides the line, and comes back to find the fob gone from a pocket or bag. In that case we program a replacement on site, and if the old fob can be removed from the car's memory, we discuss doing that so a lost fob cannot be used.
The same logic applies to anyone who works near Lankershim or Magnolia and loses a fob at the office, or who spends a day at North Hollywood Park or the NoHo West shopping center and finds it missing at the end. We come to the car, wherever it is parked, and the work is done there.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Should I get a spare key fob before I need one?
Yes, if you only have one. A spare key fob made while you still hold a working key is usually a smaller, more predictable job than rebuilding access after the last one is gone. You also avoid being stranded and having to arrange the work on a bad day.
Many fobs also carry a mechanical emergency key. If you want a plain backup key for the door lock or to give a family member without the electronics, key duplication may be the lighter-cost option, though it will not start a car with a chip. For a fuller look at what we do for vehicles, see our automotive locksmith page.
A few habits help in the meantime: keep the spare somewhere other than the car, keep it out of the heat, and replace fob batteries when range starts to shrink rather than waiting until the car cannot find the key.
What should I have ready when I call?
The more we know on the first call, the more accurate we can be about what your car needs. We also have to verify ownership before programming a fob, so please have these items handy when you call or when the van arrives. We are a mobile locksmith operation, so none of this requires bringing the car anywhere.
- Make, model, and year of the vehicle, and the VIN if you can read it.
- Photo ID, plus registration or title showing you own or are authorized to use the car.
- The exact address or parking spot, including the garage level if you are in a building.
- Whether the car is locked, running, or stuck in park.
- How many working keys or fobs you still have, and which function has failed.
- Whether you want a spare added during the same visit.
Frequently asked questions
Can you program a key fob at my home or work in North Hollywood?
Yes, in most cases. Our mobile vans carry fobs and programming equipment and come to wherever the car is parked, whether that is a driveway, an apartment garage, or a lot near Lankershim or Magnolia. Some vehicles are dealer-only, and we tell you that on the phone once we have the VIN.
Do I have to go to the dealer for a replacement key fob?
Not for most vehicles, but not for all. A small number only accept new keys through the dealer or manufacturer system. We confirm by VIN or in person, and if yours is one of them, we say so plainly instead of promising something we cannot do.
How long does key fob programming take?
It depends on the vehicle and on whether we are adding a fob or starting from lost keys. Many jobs are finished in one visit once the right fob is in hand. We will not give you a made-up number before we know your make, model, and year.
Can you replace a push to start key if I lost the only one?
Often yes. This is an all-keys-lost situation, which is more involved than adding a spare, but it is something a mobile locksmith can frequently do. Whether yours can be done on site depends on the vehicle, and we confirm that when you call.
Will changing the battery fix my key fob?
Sometimes. A weak battery causes short range and push-button-start warnings, and replacing it is the simplest fix. If the case is cracked, the board is damaged, or the fob is lost, a new fob is needed. We tell you which one it is.
Can I buy a fob online and have you program it?
Sometimes, but we would rather check first. A fob has to be the right type for your car, and some used or locked fobs cannot be reused. Call (213) 577-1366 with your vehicle details before you buy, so you do not end up with a fob that cannot be made to work.
If I lost my old fob, will it still start my car?
It might, unless it is removed from the car's memory. On many vehicles we can do that during programming, so a lost fob stops working. This varies by vehicle, and we tell you what is possible for yours.
What proof of ownership do you need?
Photo ID and registration or title showing the vehicle is yours or that you are authorized to use it. This protects you as much as it protects us, because it keeps someone else from getting a working key to your car.
Do you handle key fob replacement at night and on weekends?
Yes. Our line at (213) 577-1366 is answered 24 hours a day, 7 days a week, year-round, and the vans serve North Hollywood and the rest of our Los Angeles and Ventura county area at any hour.
More locksmith help in North Hollywood
Key Fob Replacement near North Hollywood
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
