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(323) 997-8867
Crenshaw Lock

Key Fob Replacement in Sylmar · 24/7 mobile

Key Fob Replacement in Sylmar, CA

Crenshaw Lock Company provides mobile key fob replacement and programming in Sylmar, California, available 24/7. Lost, cracked, or dead remote or proximity key? We come to your vehicle, wherever it is parked. Call (323) 997-8867 to describe your car and get started.

  • Mobile to your Sylmar location
  • Available 24/7
  • 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

Losing a key fob in Sylmar is rarely convenient. Maybe it slipped out of a pocket on a hike near the foothills, got stepped on in a barn aisle, or went through the wash. Maybe the case cracked and the buttons quit, or you bought a used car with only one working fob. Whatever happened, you need a replacement that actually talks to your car, and you shouldn't have to get the vehicle towed to find one.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are fully mobile. There is no storefront to visit. Our technician drives to you, whether you are parked in a tract-home driveway off Foothill Boulevard, in a gated Rancho Cascades community, or in a lot near Olive View-UCLA Medical Center, and we handle the fob work on site.

Key fob replacement covers more than one situation. Some customers need a new remote for a car that still has a working key. Others have lost every key and need a fob made from scratch. Smart or proximity keys, the push-button-start kind, add another layer because the car has to recognize and accept the new key. We explain which situation you are in before any work begins.

How it works in Sylmar

  1. 1

    Call and describe the vehicle

    Call (323) 997-8867 any hour. Tell us the make, model, and year, what happened to the fob, and whether you have any working key left. This helps us understand what kind of fob and programming your car needs.

  2. 2

    We come to your location

    We are fully mobile, so we meet you where the car is: at home in Sylmar, at work, or stranded on a street. Being 24/7 means a lost fob at night does not have to wait for morning.

  3. 3

    Verify ownership

    Before cutting or programming anything, we ask for proof that the vehicle is yours, typically ID and registration or title. It protects you and keeps keys out of the wrong hands.

  4. 4

    Identify the fob and key type

    We check whether your car uses a standard remote, a flip key, or a smart proximity key, and confirm the correct frequency and chip type. Matching the right hardware to the vehicle prevents programming failures.

  5. 5

    Cut, program, and pair

    If your fob includes a mechanical blade, we cut it. Then we program the fob to the vehicle so the remote functions and the immobilizer accepts it. Where the car allows, we can also remove lost fobs from its memory.

  6. 6

    Test everything before we leave

    We test lock, unlock, trunk, panic, and push-to-start where applicable, and make sure the mechanical key turns. You leave with a fob that works, not a guess.

Need key fob replacement in Sylmar?

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

Call (323) 997-8867

What affects the price

  • Vehicle make, model, and year, since some brands use far more complex security systems than others
  • Type of key: basic remote, flip key, or smart proximity key
  • Whether you have a working key already or all keys are lost, which changes the programming work required
  • How many fobs you need made or programmed in the same visit
  • Whether the fob includes a mechanical emergency blade that must be cut
  • Time and location of the call, including late-night or hard-to-reach spots

Why Sylmar chooses us

  • Fully mobile service: we work at your vehicle, so you never need to tow a car to us.
  • In business since 1987, led by owner and lead technician David Shar.
  • Available 24/7, useful when a fob goes missing late at night or on a weekend.
  • We confirm ownership first and explain the work and pricing factors before starting.
  • We handle gated and hillside situations, like Rancho Cascades or foothill driveways, without making you move the car.
  • We also rekey and service home, barn, and gate locks, so one call can cover a lost-keys situation fully.

Key Fob Replacement across Sylmar

Sylmar stretches from the valley floor up into the San Gabriel foothills, and cars here live in very different places. In 91342 you will find 1960s to 80s tract homes with driveways off Foothill Boulevard, Hubbard Street, and Roxford Street, as well as newer gated subdivisions like Rancho Cascades. If your fob dies in a gated community, we can meet you at the car rather than asking you to haul it anywhere.

Many residents commute on I-5, I-210, or SR-14 through the Newhall Pass interchange, and a failed fob in a parking lot far from home is a real headache. We also serve people at Olive View-UCLA Medical Center, where staff and visitors sometimes find a fob dead after a long shift, and around El Cariso Community Regional Park and Veterans Memorial Community Regional Park, where keys go missing during games and outings.

Out toward El Cariso and the equestrian properties, fobs take abuse from dust, grit, and barn-yard wear, and a cracked case or worn buttons are common. If you have lost a key while working around horses or trailers, we can replace the fob and, if needed, look at your barn or tack-room padlocks on the same visit. Call (323) 997-8867 and tell us where you are in Sylmar.

Locked out or need a locksmith now?

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

Call (323) 997-8867

Other Sylmar locksmith services

See all of our Sylmar services, or our citywide key fob replacement page.

Key Fob Replacement in Sylmar — FAQs

Can you replace a key fob if I lost all my keys?
Often yes. When every key is lost, we can usually create and program a new one on site once ownership is verified, depending on the vehicle. Call (323) 997-8867 with your make, model, and year.
Do I need to tow my car to you?
No. We are fully mobile and have no storefront. We come to your vehicle in Sylmar, whether that is a driveway, a gated community, or a parking lot.
Do you work at night and on weekends?
Yes, we are available 24/7. Call (323) 997-8867 any time, and we will talk through your situation.
What proof of ownership do I need?
We typically ask for a government ID and vehicle registration or title that matches. This keeps your car secure and is a standard practice for responsible locksmiths.
Can you program a fob I bought online?
Sometimes. It depends on whether the fob has the correct chip, frequency, and part compatibility for your car. Tell us what you have when you call, and we can say whether it is likely to work.
What is the difference between a remote fob and a smart key?
A remote fob sends commands when you press buttons. A smart or proximity key lets the car detect it nearby for push-button start and keyless entry. Smart keys usually involve more involved programming.
Will my old lost fob still work after the new one is programmed?
On many vehicles we can erase old keys from the car's memory during programming, so a lost fob will no longer start it. Whether this is possible depends on the vehicle.
How is the price determined?
It depends on the vehicle, key type, whether you have a working key, how many fobs you need, and the time and place of service. We explain these factors up front. For details, call (323) 997-8867.
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