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Crenshaw Lock

Transponder Key Programming in Sun Valley · 24/7 mobile

Transponder Key Programming in Sun Valley, CA

Crenshaw Lock Company provides mobile transponder key programming in Sun Valley, California, around the clock. We come to your vehicle, whether it's at home, at work, or on San Fernando Road, and program chip keys to your immobilizer on-site. Call (323) 997-8867 any hour, any day.

  • Mobile to your Sun Valley 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 modern car key is more than a cut piece of metal. Inside the plastic head is a small transponder chip that talks to the vehicle's immobilizer, and if the car doesn't recognize that chip, the engine won't start no matter how perfectly the blade turns the ignition. Transponder key programming is the work of teaching your vehicle to accept a new key, whether you lost your only one, snapped one in the ignition, or simply want a spare before something goes wrong.

Sun Valley is a place where cars and trucks are central to daily life. The district is anchored by industrial and commercial activity along San Fernando Road and the corridor behind Hollywood Burbank Airport, so people here rely on work trucks, vans, and personal vehicles to earn a living. A key that won't start the vehicle at the beginning of a shift is more than an inconvenience. Crenshaw Lock Company has been serving Greater Los Angeles and Ventura County since 1987, and we are fully mobile, so the programming happens where your vehicle is parked.

We have no storefront for you to tow a car to. Instead, the work comes to you, and that matters most in the situation that tends to cause the most stress: all keys lost. Moving a car that can't start is a hassle, and doing the job at the curb, in a driveway, or in a business lot avoids it entirely. Owner and lead technician David Shar built the company on practical, straightforward service, and that approach carries into every key we program.

How it works in Sun Valley

  1. 1

    You call and describe the vehicle

    Call (323) 997-8867 and tell us the make, model, and year, and whether you still have a working key. Those details tell us what kind of system we're dealing with and what the job will involve. We're available 24/7, so a dead-key problem at night or on a weekend isn't a problem.

  2. 2

    We come to your location

    Because we are fully mobile, we travel to wherever the vehicle sits: a home street in Stonehurst, a warehouse lot off San Fernando Road, or a parking space near the airport. There's no need to tow the car anywhere.

  3. 3

    Confirm ownership and identify the system

    Before we create a key for any vehicle, we verify that you are the rightful owner or authorized to have access. Then we identify the immobilizer system and the correct chip and key type for the vehicle.

  4. 4

    Cut or prepare the key

    If the key needs a blade, we cut it to match the vehicle's locks. For push-button or proximity styles, we prepare the key or fob for pairing. Where possible, we work from the vehicle itself, so a lost key doesn't mean a lost option.

  5. 5

    Program the transponder to the immobilizer

    Using professional programming equipment, we register the new chip with the vehicle's computer so the immobilizer recognizes it. Depending on the vehicle, other keys may be re-registered during the process, so we ask you to gather every key you have.

  6. 6

    Test everything before we leave

    We confirm that the key starts the engine, turns the door and ignition locks, and that any remote functions work as expected. You leave with a key that has been tested, not just programmed.

Need transponder key programming in Sun Valley?

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.
  • Key type: a basic chip key, a flip key, and a push-to-start proximity fob each require different hardware and different steps.
  • Whether you have a working key to copy from or have lost every key, because an all-keys-lost situation generally involves more work.
  • How many keys you want programmed in one visit, since adding a spare while we're already on site is often more efficient than a separate trip later.
  • Time of day and location of the job, as after-hours and out-of-the-way calls differ from a scheduled daytime visit.
  • Whether the key blade also needs to be cut or the ignition or door lock needs attention beyond the programming itself.

Why Sun Valley chooses us

  • Fully mobile service: we program keys at your vehicle, so you never need to arrange a tow to a shop.
  • 24/7 availability, which suits Sun Valley's shift workers, drivers, and business owners who can't wait for banker's hours.
  • Serving Greater Los Angeles and Ventura County since 1987, with owner David Shar leading the work.
  • Experience with fleet and work vehicles as well as passenger cars, which fits an area full of businesses along San Fernando Road.
  • We verify ownership before programming, which protects you and your vehicle from misuse.
  • We test the finished key fully on the vehicle before we call the job done.

Transponder Key Programming across Sun Valley

Sun Valley sits at the base of the Verdugo Mountains, and its character shows up in the vehicles people drive. Along San Fernando Road, warehouses, manufacturing shops, auto-dismantlers, and recycling yards depend on trucks and vans, and the industrial corridor behind Hollywood Burbank Airport adds more fleet traffic. When an employee loses a key to a work van or a driver needs a spare for a company truck, a technician who comes to the yard saves a lot of lost time.

Residents in ZIP code 91352 face their own version of the same problem. In Stonehurst, with its 1920s stone and clinker-brick houses, many cars are parked on the street or in older driveways, and a lost key can mean a vehicle stuck at the curb. The same goes for modest postwar homes and neighborhoods near La Tuna Canyon, where a car is often the only way to get anywhere. We meet you where the vehicle is.

Getting to you is straightforward whether you're off Glenoaks Boulevard, Sunland Boulevard, or Vineland Avenue, or near I-5 and CA-170. If your car won't start and the key is the suspect, call (323) 997-8867. We're mobile and available around the clock throughout Sun Valley.

Locked out or need a locksmith now?

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

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Other Sun Valley locksmith services

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

Transponder Key Programming in Sun Valley — FAQs

What is a transponder key?
A transponder key has a small chip in its head that communicates with your vehicle's immobilizer. The engine will only start if the car recognizes the chip, which is why a key that is simply cut to match the lock often won't work on a modern vehicle.
Can you program a key if I've lost all of mine in Sun Valley?
In many cases, yes. All-keys-lost situations are common, and we can often make and program a new key at your vehicle. Call (323) 997-8867 with your vehicle's make, model, and year and we'll explain what to expect.
Do I need to tow my car to you?
No. Crenshaw Lock Company is fully mobile and has no storefront. We come to your car, whether it's parked at home in Stonehurst, at a business off San Fernando Road, or elsewhere in Sun Valley.
Can I get a spare key programmed before I lose my only one?
Yes, and it's usually the easier route. With a working key available, adding a spare is generally simpler than starting from nothing. Call (323) 997-8867 to schedule it.
Do you work on work trucks and fleet vehicles?
Yes. Sun Valley has many businesses that depend on vans and trucks, and we can help with key programming for work vehicles as well as personal cars. Let us know the vehicle details when you call.
Will I need to prove the car is mine?
Yes. We verify ownership or authorization before programming a key. It protects you and keeps the service from being used to take someone else's vehicle.
Are you available at night or on weekends?
Yes, we are available 24/7. A key problem doesn't wait for business hours, so neither do we.
Will other keys I own still work after programming?
That depends on the vehicle. Some systems keep existing keys, while others require all keys to be registered together. Bring every key you have so we can handle it during the same visit.
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