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Crenshaw Lock

Hyundai car keys in Sylmar · 24/7 mobile

Hyundai Car Key Replacement in Sylmar

Need Hyundai car keys in Sylmar? Crenshaw Lock Company is fully mobile and available 24/7, coming straight to your Elantra or Sonata to replace lost, spare, or all-keys-lost transponder keys and Smart Key fobs. Call (323) 997-8867 for help today.

  • Mobile to your Sylmar location
  • Keys & fobs programmed on site
  • Available 24/7
Call (323) 997-8867or tap to call — we answer 24/7
Smart key fob and transponder car key on a car seat at night
Open now(323) 997-8867

Losing the key to a Hyundai Elantra or Sonata is stressful, especially when the car is parked at home, at work, or in a hospital lot. Many Hyundai models use a transponder key with a chip the car must recognize, while others use a push-button Smart Key fob. A hardware-store copy will not start the engine, so the replacement has to be cut and programmed to your specific vehicle.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are 100% mobile. We have no shop for you to get to: our technician drives to your Hyundai in Sylmar and works on the spot. We cover a single lost key, an extra spare, and all-keys-lost situations, and we confirm the correct key for your car using the VIN.

How it works in Sylmar

  1. 1

    Call and share your vehicle details

    Call (323) 997-8867 any hour and tell us your Hyundai's model, year, and where it is parked. Let us know whether you have a bladed transponder key or a push-button Smart Key, and whether you still have any working key.

  2. 2

    We come to your car

    Our mobile technician drives to your Hyundai in Sylmar, whether that is a driveway, a street, a hospital lot, or a park. Nothing needs to be towed, and you do not have to go anywhere.

  3. 3

    Verify ownership and confirm the key by VIN

    We check your ID and proof of ownership, then use the VIN to confirm the correct key type and cutting information for your Elantra or Sonata. We never guess at the key from the model name alone.

  4. 4

    Cut, program, and test

    We cut the new key if it has a blade, program the transponder or Smart Key fob to your car, and test everything: starting the engine, locking and unlocking, and any remote buttons. Spares can be made at the same visit.

What affects the price

Hyundai keys across Sylmar

Sylmar sits at the northern end of the San Fernando Valley, and we serve ZIP 91342 and the surrounding area. Whether your Hyundai is in Rancho Cascades, near El Cariso, or in the Olive View foothills district, we come to the car. We often help people who lose keys during a day at Olive View-UCLA Medical Center, at El Cariso Community Regional Park & Golf Course, at Veterans Memorial Community Regional Park, or after a visit to the Wildlife Learning Center.

Commuters who use the I-5, I-210, and SR-14 Newhall Pass interchange sometimes get stranded with a missing key far from home, and we can meet you wherever the Hyundai is parked. Our mobile service also covers homes: in Rancho Cascades we can fix a gated home's driveway keypad or call-box and rekey after a sale, and on equestrian properties off Hubbard or Foothill we swap dust-seized barn padlocks for weather-resistant shrouded ones. At older foothill homes where settling has left a deadbolt not throwing, we realign the strike and jamb and rekey the entry.

See our Hyundai key guides by model and year, or all Sylmar services.

Need a Hyundai key in Sylmar?

Call (323) 997-8867 — we come to your vehicle 24/7.

Call (323) 997-8867

Hyundai keys in Sylmar — FAQs

I lost all my Hyundai keys in Sylmar. Can you still make a new one?
Yes. All-keys-lost is something we handle regularly. We come to your Elantra or Sonata, verify ownership, use the VIN to confirm the right key, then cut and program a new one on site. Call (323) 997-8867 anytime.
Can you make a spare Hyundai key so I am not stuck again?
Yes. Having a spare made is much simpler than replacing a key after all are lost. We can program an extra transponder key or Smart Key fob at your location, and we recommend doing it before you are stranded.
What if I do not have my original key?
You do not need the original. We can create a new key from your vehicle's VIN along with proof of ownership and ID. Having no original key simply means we treat it as an all-keys-lost job.
What is the difference between a bladed key and a push-button Smart Key?
A transponder key has a cut metal blade plus a chip the car must recognize before the engine starts. A push-button Smart Key fob lets you start the car with a button and usually has no traditional blade for the ignition. Which one your Hyundai uses depends on the model and year.
How do you know which key fits my Elantra or Sonata?
We confirm it using your VIN rather than guessing from the model name, since key types can vary within the same model. That lets us choose the correct key or fob and program it to your car.
Do I need to bring my Hyundai to a shop?
No. We are fully mobile and come to wherever the car is parked in Sylmar, 24/7. Call (323) 997-8867 and we will take it from there.
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