Open 24/7 · Greater Los Angeles & Ventura County

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Crenshaw Lock

Transponder Key Programming in Ventura · 24/7 mobile

Transponder Key Programming in Ventura, California

Crenshaw Lock Company provides mobile transponder key programming in Ventura, California, 24/7. We come to your car, cut and program chip keys to your vehicle's immobilizer, and get you driving again. Call (323) 997-8867 any hour, whether you lost every key or just need a spare.

  • Mobile to your Ventura 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 does not match what the car expects, the engine will not start, even when the metal blade turns the ignition freely. That is why a hardware-store copy often opens the door but leaves you stranded. Programming is the step that teaches the car to recognize a key.

In Ventura this comes up in very ordinary ways. A key goes missing after a day at the Ventura Pier or a walk along Main Street. A spare gets lost in the harbor area, or a fob stops working after years of salt air near the coast. Sometimes the only key a household has is the one already in your pocket, and you want a backup before something goes wrong. Each of these is a job we can handle on site.

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. There is no storefront to drive to, which matters most when you cannot start your car. We bring the equipment to the parking lot, driveway or curb where the vehicle is sitting.

How it works in Ventura

  1. 1

    Call and describe the situation

    Call (323) 997-8867 and tell us the make, model and year, and whether you have any working key left. Knowing if this is an added spare or an all-keys-lost situation helps us prepare the right approach.

  2. 2

    We come to the vehicle

    Because we are mobile and available 24/7, we meet you where the car is, whether that is a driveway in Midtown, a street near Downtown Ventura, or a lot off Harbor Blvd. You do not need to tow it anywhere.

  3. 3

    Confirm ownership

    Before creating a key for a vehicle, we verify that you are the owner or authorized user. This protects you and is a standard, responsible practice in automotive work.

  4. 4

    Cut the blade and prepare the chip

    We cut the key blade to match your locks, using the vehicle's key code or by working from the existing lock when needed, and select a compatible transponder chip or fob for your specific vehicle.

  5. 5

    Program to the immobilizer

    Using diagnostic programming equipment, we register the new key with the car's immobilizer. Depending on the vehicle, that may also mean erasing a lost key so it can no longer start the car.

  6. 6

    Test everything before we leave

    We check that the key opens the doors, turns the ignition, starts the engine, and that any remote buttons work. You should leave with keys you trust, not ones you hope will work.

Need transponder key programming in Ventura?

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 immobilizer systems are far more involved to program than others.
  • Whether you have a working key already (adding a spare) or have lost all keys, which can require more steps.
  • The type of key: a basic chip key, a flip key, a remote head key or a proximity smart key.
  • Whether the blade needs to be cut from scratch and how complex the key profile is.
  • Time of day and the location of the vehicle, given that we serve you 24/7 on a mobile basis.
  • Whether older keys should be removed from the car's memory as part of the job.

Why Ventura chooses us

  • Fully mobile service. The work happens at your vehicle, so a dead-start situation does not become a tow bill on top of everything else.
  • In business since 1987, with owner and lead technician David Shar guiding the work rather than a rotating call center.
  • Honest scoping. We tell you what your vehicle needs, including when a dealer is the only route for a particular system.
  • Testing before we leave. Doors, ignition, start and remote functions are all checked in front of you.
  • Local awareness. We understand coastal conditions like salt air and moisture that wear on fobs and key blades around Ventura Harbor and the beach neighborhoods.
  • Available around the clock, including nights and weekends when keys most often go missing.

Transponder Key Programming across Ventura

Ventura stretches from the beach to the hills, and vehicles here live in very different conditions. In Pierpont and Ventura Keys, cars sit close to salt air and canal moisture, which can corrode key blades and wear down fob buttons over time. If a remote has become unreliable, programming a fresh key now is easier than waiting for a complete failure. In Hobson Heights, hillside driveways and tight turns make a roadside rescue awkward, so having someone come to the driveway is a real convenience.

Downtown Ventura and Midtown bring a different pattern. Street parking around Main Street, the Mission San Buenaventura and the historic district means keys are often lost during a day out, and the car may be parked a few blocks from where you realize it. Visitors headed to the Ventura Pier, the Ventura County Fairgrounds at Seaside Park, or Ventura Harbor sometimes lose keys far from home. We cover ZIP codes like 93001 around Downtown, along with 93003 and 93004, and reach vehicles along US-101, SR-33, SR-126 and Victoria Ave.

We are a mobile company, so there is no shop to visit. Call (323) 997-8867, tell us where the vehicle is, and we will plan the job from there, day or night.

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 Ventura locksmith services

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

Transponder Key Programming in Ventura — FAQs

What is transponder key programming?
It is the process of registering a chip key with your vehicle's immobilizer so the engine will start. Without that step, even a perfectly cut key will turn but not start the car.
Can you program a key if I lost all of mine in Ventura?
In many cases yes. All-keys-lost jobs involve more steps than adding a spare, but we can often handle them at your vehicle. Call (323) 997-8867 with your vehicle details and we will tell you what to expect.
Do I need to tow my car to you?
No. We are fully mobile and have no storefront. We come to your car, whether it is parked in Midtown, near Ventura Harbor or in your own driveway.
Is it cheaper than going to the dealer?
We will not promise that for every vehicle, because it depends on the make and system. Mobile service does save towing and the trip, and we will be upfront if your car truly requires the dealer.
Do you work at night or on weekends?
Yes, we are available 24/7. You can reach us any hour at (323) 997-8867.
Will you need proof that the car is mine?
Yes. We verify ownership or authorization before making a key for any vehicle. It protects you and keeps the work above board.
Can you add a spare so I am not stranded again?
Yes, and it is usually the easier job because a working key is available. Having a spare made before a loss is often simpler than replacing everything after one.
Can lost keys be removed from the car's memory?
On many vehicles, yes. If a key was lost or stolen, we can discuss erasing it so it can no longer start the car. Ask when you 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