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Crenshaw Lock

Transponder Key Programming in Torrance · 24/7 mobile

Transponder Key Programming in Torrance, California

Crenshaw Lock Company provides mobile transponder key programming in Torrance, California, 24/7. 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 talk with a real locksmith about your car.

  • Mobile to your Torrance 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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Most cars built since the late 1990s will not start with a plain metal key. Inside the plastic head of the key is a small transponder chip, and the car's immobilizer must recognize that chip before the engine will run. If you have lost a key, broken one, or want a spare before the only one you own disappears, the new key has to be cut and then introduced to the car's computer. That second part is what transponder key programming means.

In a city as spread out and car-dependent as Torrance, being stuck is more than an inconvenience. People commute along the I-405 and I-110, run errands up and down Hawthorne Blvd and Crenshaw Blvd, and park for hours at Del Amo Fashion Center or down at Torrance Beach. When a key goes missing in any of those places, hauling the car to a shop is often not an option. We are fully mobile, so the work happens where the car sits: in your driveway, in a parking structure, or at the curb.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar has spent decades working with the locks and keys that real families and businesses depend on. We have no storefront to visit; the shop comes to you, any hour of the day or night. This page explains how programming works, what shapes the cost, and what to have ready when you call.

How it works in Torrance

  1. 1

    Tell us about the vehicle

    When you call (323) 997-8867, we ask for the make, model, and year, and whether you still have a working key. Those details tell us what kind of immobilizer system the car uses and what equipment we need to bring. Some vehicles allow a simple add-a-key procedure when a working key exists, while others require a more involved process.

  2. 2

    Confirm ownership

    Before we cut or program anything, we ask you to show that the car is yours. That usually means a registration or title along with a photo ID. It is a standard step for any responsible locksmith, and it protects you as much as it protects us.

  3. 3

    Cut the key blank

    We match the correct key blank to your vehicle and cut it to the proper pattern. Depending on the car, that might be a traditional blade, a high-security laser-cut key, or a key shell for a remote-head or smart-key style. If every key is lost, we can generate a cut from the vehicle itself.

  4. 4

    Program the transponder

    Using professional programming equipment connected to the vehicle, we register the new chip with the car's immobilizer. If there are other keys that should keep working, we program them in the same session. We can also remove keys that are no longer wanted, which matters if one was lost or stolen.

  5. 5

    Test everything on site

    We start the engine with the new key, confirm the door locks and any remote buttons work, and check that your existing keys still behave as expected. You do not leave us guessing whether it will start tomorrow morning; we verify before we pack up.

Need transponder key programming in Torrance?

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

Call (323) 997-8867

What affects the price

  • The make, model, and year of the vehicle, since some immobilizer systems are far more involved to program than others.
  • Whether you have a working key already or have lost every key, because starting from nothing requires extra steps.
  • The type of key: a basic chip key, a laser-cut high-security key, a remote-head key, or a push-button smart key each involve different parts and procedures.
  • How many keys you want programmed in the visit, including spares, and whether old keys need to be erased from the car's memory.
  • Time of day and location, since we work around the clock and travel to the vehicle wherever it is parked.
  • Whether the car needs additional work, such as repairing a damaged ignition or addressing a failed existing key, before programming can be completed.

Why Torrance chooses us

  • Fully mobile service: we program keys at your car, so you never have to tow a vehicle just to get a key made.
  • Available 24/7, including nights, weekends, and holidays, for situations that do not wait for business hours.
  • In business since 1987, with David Shar as owner and lead technician, so the experience behind the work is long and personal.
  • Honest about what is possible: if a particular vehicle is better handled by the dealer, we will say so rather than take a job we cannot do well.
  • Ownership verification on every job, which keeps keys from ending up in the wrong hands.
  • Clear explanation of the factors behind the cost before work begins, with no surprise add-ons.

Transponder Key Programming across Torrance

Torrance is a big, varied city, and car keys get lost in all of its corners. In Southwood and West Torrance, where 1950s and 60s ranch tracts line the streets, driveways are full of family vehicles, and a spare key often goes missing long before anyone notices. In Old Torrance, around El Prado and its Craftsman bungalows, many residents park on narrow streets or in older garages, and a car that will not start because of a lost chip key is a real headache. Up in Walteria and Hollywood Riviera, the hillside streets make a tow especially unappealing, so having the programming done right at the curb is a practical convenience.

We work throughout ZIP codes 90501, 90502, 90503, 90504, and 90505. That includes drivers who park at Del Amo Fashion Center for a long shift or a day of shopping, visitors who leave a car near Torrance Beach or Madrona Marsh Preserve, and workers commuting through the industrial areas near Torrance Municipal Airport (Zamperini Field). If your key stopped working while you were out on Pacific Coast Hwy, Sepulveda Blvd, or Torrance Blvd, we can meet you where the car is.

Since we are mobile only, there is no shop to drive to. Call (323) 997-8867, tell us where the vehicle is parked, and we will head your way. The same crew also handles home, business, and lockout work around the city, so one call can often cover more than the car if you need it.

Locked out or need a locksmith now?

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Call (323) 997-8867

Other Torrance locksmith services

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

Transponder Key Programming in Torrance — FAQs

What is a transponder key?
It is a key with a small electronic chip in the head. The car's immobilizer reads the chip, and the engine will only start if the code matches. A plain copy cut at a hardware kiosk will turn the lock but will not start the car unless it has been programmed.
Can you program a key if I have lost all my keys?
In many cases, yes. We can cut a key and program it to the car even when no working key exists, though the process takes more steps. Call (323) 997-8867 with your vehicle's make, model, and year and we will tell you what to expect.
Do you come to me in Torrance, or do I bring the car?
We come to you. Crenshaw Lock Company is fully mobile with no storefront, so we program keys wherever the car is parked, whether that is a home in Southwood, a street in Old Torrance, or a lot near Del Amo Fashion Center.
Is it cheaper than going to the dealer?
We will not promise a comparison, since it depends on the vehicle. What we can say is that mobile service saves you the tow or trip, and we explain the factors behind the cost up front. Call (323) 997-8867 to discuss your situation.
What do I need to show before you program a key?
We ask for proof that the vehicle is yours, typically a registration or title and a valid photo ID. This is a standard safeguard that protects owners from theft.
Can you erase a lost key from the car's memory?
On many vehicles, yes. When we program new keys, we can often remove older keys from the immobilizer so a lost or stolen one will no longer start the car. It is worth asking about during your visit.
How long does programming take?
It depends on the vehicle and whether you still have a working key. We do not rush it; we test the new key fully before we leave. We are available around the clock, so you can call any time.
Should I get a spare key before I lose the last one?
Yes, if you can. Adding a key while you still have a working one is usually simpler than starting from nothing. Call (323) 997-8867 and we can schedule a visit for a time that works for you.
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