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Crenshaw Lock

Transponder Key Programming in Santa Clarita · 24/7 mobile

Transponder Key Programming in Santa Clarita, CA

Crenshaw Lock Company provides 24/7 mobile transponder key programming in Santa Clarita, California. We come to your vehicle and program chip keys to its immobilizer, whether you lost every key or just need a spare. Call (323) 997-8867 to describe your car and get started.

  • Mobile to your Santa Clarita location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Car key being programmed with a handheld programmer inside a car
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A transponder key looks like an ordinary key, but inside the plastic head is a small chip that talks to your car's immobilizer. If the chip's code isn't recognized, the engine may turn over briefly or not at all, even when the metal blade turns the ignition perfectly. That is why a hardware-store copy often fails to start a car, and why programming is a separate step from cutting.

In Santa Clarita, where most households park two or more cars in attached garages and commute on I-5 and CA-14, a single lost key can disrupt the whole week. Many of our calls come from people who have only one working key and want a spare before it disappears, and from people stranded after losing their only key at a trailhead, a school lot, or a shopping trip.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are fully mobile and available around the clock. There is no storefront to visit: we bring the equipment to your driveway, parking structure, or the roadside, and do the work where the car is.

How it works in Santa Clarita

  1. 1

    Tell us about the vehicle

    When you call (323) 997-8867, we ask for the make, model, and year, and whether you have any working key. That tells us what kind of immobilizer system you have and what equipment is needed.

  2. 2

    Confirm ownership

    Before we cut or program anything, we ask you to show that the vehicle is yours, typically with identification and registration or title. It protects you and keeps the work legitimate.

  3. 3

    Come to your location

    We drive to you, whether that is a garage in Saugus, a lot near Westfield Valencia Town Center, or a shoulder off Soledad Canyon Rd. The car stays where it is; no towing is needed in most cases.

  4. 4

    Cut the key blade

    If you need a new key, we cut the blade to match the vehicle's lock. With a lost-all-keys situation, we can create the cut from the car itself.

  5. 5

    Program the transponder

    We connect programming equipment to the vehicle and register the new chip with its immobilizer. Depending on the vehicle, this can also include adding or removing keys from the system.

  6. 6

    Test everything

    We start the engine, then test the door locks and any remote buttons with you present. You leave knowing every key works before we pack up.

Need transponder key programming in Santa Clarita?

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

Call (323) 997-8867

What affects the price

  • Make, model, and year of the vehicle, since some immobilizer systems are far more involved to program than others.
  • Whether you still have a working key to copy or have lost every key, which changes the amount of work required.
  • The type of key: a basic chip key, a flip key, a remote-head key, or a smart proximity key each require different parts and procedures.
  • How many keys you need programmed in one visit.
  • Your location within Santa Clarita and the time of day, since after-hours and weekend calls involve different logistics.
  • Whether the key blade must be cut, or if the existing blade only needs its chip registered.

Why Santa Clarita chooses us

  • Fully mobile service: the programming equipment comes to your car, so you avoid dealer towing and waiting.
  • In business since 1987, with owner David Shar leading the work rather than handing it off to an unknown crew.
  • Available 24/7, which matters when you are locked out of options late at night after an event or a long drive.
  • Clear communication: we explain what the job involves and what affects the cost before work starts.
  • We verify ownership before programming, which keeps stolen-vehicle misuse out of the picture.
  • We can often handle lost-all-keys situations on site, not only duplicate keys.

Transponder Key Programming across Santa Clarita

Santa Clarita is spread across several distinct communities, and cars here are rarely far from a long drive. In Valencia, we get calls from shopping and commuter lots around Westfield Valencia Town Center and the businesses along Valencia Blvd and Newhall Ranch Rd. In Saugus and Canyon Country, the calls often come from driveways in tract-home neighborhoods where a teen driver or a second family car has lost its only key. ZIP 91355 in Valencia and ZIP 91350 in Saugus are among the areas we routinely serve.

Newhall and Old Town Newhall bring a different mix: visitors parking near the shops and restaurants, and residents with older vehicles that still rely on chip keys. Plum Canyon has newer homes and newer cars, many with smart keys or push-button start. Wherever you are, the process is the same: we come to the vehicle and program it on site.

Our drivers know the main routes, including I-5, CA-14, Sierra Highway, and Bouquet Canyon Rd, and that helps us reach people stuck near places like College of the Canyons, William S. Hart Park, or Six Flags Magic Mountain. If you lose a key on a day trip near Vasquez Rocks, call and we will discuss options for getting you moving again.

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 Santa Clarita locksmith services

See all of our Santa Clarita services, or our citywide transponder key programming page.

Transponder Key Programming in Santa Clarita — FAQs

What is a transponder key?
It is a key with a small chip inside the head. The car's immobilizer reads the chip's code and only allows the engine to start if the code matches. Programming registers that code with your vehicle.
Can you program a key if I lost all my keys in Santa Clarita?
In many cases, yes. We can cut a blade and program a new chip on site, depending on the vehicle. Call (323) 997-8867 with the make, model, and year so we can confirm what is possible.
Do I need to tow my car to you?
Usually not. We are fully mobile and have no storefront, so we come to your car in a driveway, garage, or parking lot and do the work there.
Is it cheaper than going to the dealer?
We cannot promise that for every vehicle, but many people find mobile programming more convenient since there is no tow and no trip to a dealership. Price depends on the vehicle, key type, and situation, so call (323) 997-8867 to talk through yours.
Will you need proof the car is mine?
Yes. We ask for identification and proof of ownership, such as registration or title, before programming any key. This protects owners.
Can you program a spare key before I lose the last one?
Yes, and it is usually the easier route. If you have a working key, adding a spare is generally simpler than starting from nothing, and it avoids a stressful lockout later.
Do you work nights and weekends?
We are available 24/7, including nights, weekends, and holidays. Call (323) 997-8867 any time.
Do you program push-button start and smart keys too?
Often we can, depending on the make and model. Tell us your vehicle details when you call and we will let you know honestly whether we can handle it or if it needs a different solution.
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