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Crenshaw Lock

Transponder Key Programming in Paramount · 24/7 mobile

Transponder Key Programming in Paramount, CA

Crenshaw Lock Company provides mobile transponder key programming in Paramount, California, 24 hours a day, 7 days a week. We come to your vehicle and program chip keys to its immobilizer wherever it is parked. Call (323) 997-8867 to talk with a locksmith about your car.

  • Mobile to your Paramount 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 key that only fits the ignition. Inside the plastic head of the key is a small transponder chip, and the vehicle's immobilizer must recognize its code before the engine will run. When you lose your only key, or a spare stops working, a hardware store copy will turn the lock but leave the car dead. Programming is the step that makes a new key actually work.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar built the business around being fully mobile. We have no storefront and no shop to tow your car to. The work happens where the vehicle sits, whether that is a driveway in a post-war Paramount tract, a parking space near the Paramount Boulevard business district, or a lot by your workplace.

This page explains how transponder programming works, what affects the cost, and what to have ready when you call. If you are stranded and need to speak with someone now, call (323) 997-8867 any hour.

How it works in Paramount

  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 any working key. That tells us whether we are adding a spare to a car that still has a key or starting from scratch after every key is lost. We also ask where the car is so we can plan the visit.

  2. 2

    Confirm ownership

    Before we cut or program anything, we ask for proof that the vehicle is yours, typically a photo ID along with registration or title. It is a routine step that protects owners from theft, and any legitimate automotive locksmith should require it.

  3. 3

    Cut the key blank

    We match the correct key blank to your vehicle and cut it on site using your existing key or the vehicle's lock information. If your car uses a laser-cut or push-button start fob, we select the matching style so it fits and communicates properly.

  4. 4

    Program the transponder to the immobilizer

    Using professional diagnostic and programming equipment connected to the car, we register the new key's chip with the immobilizer. Depending on the model, we may also erase a lost key from the system so it can no longer start the car.

  5. 5

    Test every function

    We start the engine with the new key, test the door locks, and check remote buttons if the key has them. We do not leave until you have watched it work. If you wanted a second spare, we test that one too.

Need transponder key programming in Paramount?

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

Call (323) 997-8867

What affects the price

  • The vehicle's make, model, and year, since some manufacturers have more involved immobilizer systems than others.
  • Whether you have a working key to copy or all keys are lost, which changes how much programming work is required.
  • The type of key: a basic transponder key, a laser-cut key, a flip key, or a proximity smart key for push-button start.
  • How many keys you want made, since adding a spare during the same visit is often more practical than calling again later.
  • Time of day and location of the vehicle, as after-hours calls and hard-to-reach spots can affect the total.
  • Whether the key needs cutting only, programming only, or both, depending on what you already have.

Why Paramount chooses us

  • Fully mobile service: the programming equipment comes to your car, so you never have to tow a vehicle with no working key.
  • Operating since 1987 under owner and lead tech David Shar, with decades of experience on automotive locks.
  • Available 24/7, which matters when a key goes missing at night or on a weekend.
  • We verify ownership before programming, which protects you and keeps the work legitimate.
  • We explain the options plainly, including when a spare made now is smarter than waiting for an emergency.
  • We work on residential, commercial, and automotive locks, so one call can cover your car and a rekey at home or a shop.

Transponder Key Programming across Paramount

Paramount grew out of the historic Clearwater and Hynes communities, and today drivers here park everywhere from quiet post-war residential streets to busy commercial strips. We program keys for people in 90723 whose cars sit in driveways off Paramount Boulevard, near Rosecrans Avenue and Alondra Boulevard, or along Somerset and Lakewood Boulevards.

Paramount is also a commuter city. Many residents drive daily on the I-710 Long Beach Freeway or the SR-91 Artesia Freeway, and lots of people work in the industrial and manufacturing businesses near the rail corridor. A lost key in a work parking lot can mean a missed shift, so we come to the car, whether it is at a fabrication yard or outside the Paramount Boulevard business district.

Weekend vendors at the Paramount Swap Meet and visitors to Progress Park sometimes find a key has fallen out of a pocket in a crowded lot. Since we are mobile and answer around the clock, a call to (323) 997-8867 is the first step. If you also need home or shop locks rekeyed, we can often handle that on the same visit.

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 Paramount locksmith services

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

Transponder Key Programming in Paramount — FAQs

Can you program a transponder key if I lost all my keys in Paramount?
Yes. An all-keys-lost situation is something we handle regularly. We verify ownership, cut a key to the vehicle, and program it to the immobilizer at your location. Call (323) 997-8867 to describe your car.
Do I need to tow my car to you?
No. We are fully mobile and have no storefront. We bring the equipment to wherever the car is parked, whether that is a home in Clearwater, a lot on Paramount Boulevard, or elsewhere in Paramount.
Is it cheaper than going to the dealership?
We cannot quote dealership pricing, but mobile service removes towing and lets us work where the car sits. Cost depends on the vehicle, key type, and whether any key remains. Call (323) 997-8867 to discuss your situation.
What proof of ownership will you ask for?
Typically a government photo ID plus registration or title showing the vehicle is yours. This protects owners and is a standard step for legitimate automotive locksmiths.
Will my old lost key still start the car afterward?
On many vehicles, we can remove lost keys from the immobilizer memory during programming so they no longer work. Support varies by make and model, so ask us when you call.
Can you make a spare key if I still have one that works?
Yes, and it is usually the easier situation. Copying and programming a spare while you still have a working key avoids the complications of losing every key later.
Do you program smart keys and key fobs for push-button start?
We handle many proximity keys and remote fobs, though capability depends on the vehicle. Tell us the make, model, and year when you call (323) 997-8867 and we will say what is possible.
Are you available at night or on weekends?
Yes. We operate 24 hours a day, 7 days a week. If your key goes missing late at night or after a swap meet weekend, you can still reach us at (323) 997-8867.
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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