Open 24/7 · Greater Los Angeles & Ventura County

(323) 997-8867
Crenshaw Lock

Key Fob Replacement · 24/7 mobile

Key Fob Replacement in Greater Los Angeles & Ventura County

Crenshaw Lock Company replaces and programs remote key fobs and smart/proximity keys across Greater Los Angeles and Ventura County. We are fully mobile and available 24/7, and we come to your car. Call (323) 997-8867 to talk through your vehicle and get started.

  • Mobile — we come to your location
  • Available 24/7
  • Upfront price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Modern car smart key fob on dark leather
Open now(323) 997-8867

A key fob is more than a button remote. Inside is a transmitter, often a transponder chip, and sometimes a proximity system that lets your car recognize you from a pocket or purse. When one is lost, cracked, soaked, or simply stops working, the car may not start or may not unlock at all. Our job is to get you a working replacement and make sure the car recognizes it.

We have been serving Los Angeles area drivers since 1987, and owner and lead technician David Shar built the business around coming to the customer. Because we are fully mobile, there is no need to tow your car to a shop or find a ride. We work in driveways, parking structures, office lots, and curbsides.

Fob replacement varies a lot by make, model, and year. Some fobs can be added alongside existing keys, while others, especially when every key is lost, take more involved steps. We will explain what your vehicle needs before work begins, so you know what to expect.

How our key fob replacement service works

  1. 1

    Call and describe the situation

    Tell us the make, model, and year, what type of key or fob you have, and whether you still have any working key. Call (323) 997-8867 any time, day or night.

  2. 2

    Confirm the right fob

    We identify the correct fob type for your vehicle, whether a remote head key, a flip key, or a smart/proximity key, so the replacement matches your car's system.

  3. 3

    We come to your vehicle

    A technician drives to your location with the tools and equipment needed for on-site work, so your car never has to be towed to a shop.

  4. 4

    Cut or prepare the key, if needed

    If your fob includes a mechanical key blade, we cut it to fit your locks. Smart keys usually include an emergency blade as well.

  5. 5

    Program to the vehicle

    We program the new fob so the car accepts it, covering the remote functions and, where applicable, the immobilizer or proximity system.

  6. 6

    Test everything before we finish

    We check lock, unlock, trunk, panic, and start functions, and confirm that any spare fobs you already have still work.

What affects the price

  • Vehicle make, model, and year, since some systems are far more complex to program than others
  • Fob type: basic remote, remote head key, flip key, or smart/proximity key
  • Whether you have a working key to copy or all keys are lost
  • Whether the fob is original equipment or an aftermarket option that suits your vehicle
  • Whether a mechanical key blade needs to be cut as well
  • Time of day and how far we travel to reach you

Why choose us

  • Fully mobile service, so we handle fob work at your car instead of requiring a tow
  • In business since 1987, with David Shar as owner and lead technician
  • Honest guidance on whether a replacement can be added or whether your situation is more involved
  • We test every function and any existing spare fobs before leaving
  • Available 24/7 for lockouts and no-start situations caused by lost or failed fobs
  • Price discussed in terms of your specific vehicle and fob type before work begins

Where we work

We bring key fob replacement to drivers throughout Greater Los Angeles. That includes the San Fernando Valley, the San Gabriel Valley, the South Bay and Harbor area, the Westside, the Gateway Cities, and Central and South LA. Whether you are at home, at work, or stuck in a parking lot, we come to you.

We also serve parts of Ventura County. Because we are fully mobile and have no storefront, the call is the first step: give us your location and vehicle details at (323) 997-8867 and we will tell you how we can help.

Need key fob replacement now?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

Related services

Key Fob Replacement — FAQs

Can you replace a key fob if I lost every key?
Often yes. All-keys-lost situations are more involved than adding a spare, but many vehicles can be handled on-site. Call (323) 997-8867 with your make, model, and year and we will explain what is possible.
Do I have to go to the dealer for a new fob?
Not necessarily. We replace and program many fobs and smart keys ourselves, and we come to you, so you can skip the trip and the tow in many cases.
What is the difference between a remote fob and a smart key?
A remote fob needs a button press to lock or unlock, and often has a key blade. A smart or proximity key lets the car detect it nearby so you can unlock and start without taking it out. They program differently.
Will my old lost fob still work after you program a new one?
On many vehicles, programming can be set up so that a lost fob is no longer accepted. This depends on the vehicle, so ask us about it when you call.
Can you just replace the case or battery?
If your fob still works but is cracked or has a dead battery, a shell or battery change may be all you need. Tell us what is happening and we will point you to the simplest fix.
Can you program a fob I bought online?
Sometimes. Compatibility depends on the fob's frequency, chip, and your vehicle, and not every online fob can be programmed. Call (323) 997-8867 before ordering so we can tell you what to look for.
How do I know what my fob replacement will cost?
It depends on your vehicle, the fob type, and whether you have a working key. We will talk through those factors and give you clear information before we begin.
Do you work nights and weekends?
Yes. We are available 24/7. Call (323) 997-8867 any time you need help with a fob or a car that will not start.
DS

Reviewed by David Shar — Owner & Lead Technician

Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.

Last updated 2026-10-12.

Call (323) 997-8867 · Open 24/7