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(323) 997-8867
Crenshaw Lock

Hyundai car keys in Altadena · 24/7 mobile

Hyundai Car Key Replacement in Altadena

Need Hyundai car keys in Altadena? Crenshaw Lock Company is fully mobile and available 24/7 for Elantra and Sonata transponder keys and Smart Key fobs, including all-keys-lost. We come to your vehicle. Call (323) 997-8867 for a replacement or spare today.

  • Mobile to your Altadena 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 your Hyundai is stressful, whether the car is parked on a quiet street in Janes Village or at the trailhead near Cobb Estate. Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we bring the work to you. There is no tow to a dealer and no need to move the car. Our technician comes to the vehicle, wherever it sits in Altadena.

Hyundai Elantra and Sonata models commonly use either a transponder key with a bladed head or a push-button Smart Key fob, depending on the model year and trim. We do not guess which one your car needs. The correct key is confirmed using your VIN and a check of the vehicle itself. That covers a lost single key, a spare you want made before the last one disappears, and an all-keys-lost situation where no working key remains.

How it works in Altadena

  1. 1

    Call and share your vehicle details

    Call (323) 997-8867 and tell us your Hyundai model, the approximate year, and where the car is parked in Altadena. Have your VIN ready; it is usually visible at the base of the windshield or on the driver door jamb.

  2. 2

    We come to your car

    Our fully mobile technician travels to your location, whether that is a driveway in The Meadows, a spot near Charles White Park, or a lot by Farnsworth Park. We verify ownership before any work begins.

  3. 3

    Confirm the correct key by VIN

    We use your VIN and an inspection of the vehicle to determine whether your Elantra or Sonata takes a transponder key or a Smart Key fob. This keeps us from cutting or ordering the wrong thing.

  4. 4

    Cut and program on site

    We prepare the new key or fob and program it to your Hyundai at the vehicle. This works for lost-key, spare, and all-keys-lost cases.

  5. 5

    Test everything before we leave

    We confirm the key starts the car and that the doors, remote functions, and any push-button start work as expected. We also suggest making a spare while we are there.

What affects the price

Hyundai keys across Altadena

Altadena is a hillside community where cars park on sloped streets, in driveways on larger lots, and at trailheads like the Sam Merrill Trailhead near Cobb Estate. We serve residents in Janes Village, along Christmas Tree Lane on Santa Rosa Avenue, around the Altadena Country Club, and in The Meadows. Our technicians work throughout ZIP codes 91001 and 91003, and we handle the vehicle right where it is parked, including near Charles White Park, Farnsworth Park, and the Mount Lowe Railway site.

Many Altadena households are rebuilding or settling into new homes after the Eaton Fire, and keys often get lost or mixed up during the shuffle. Crenshaw Lock Company also helps with the property side of that process, such as rekeying a hillside home near Christmas Tree Lane after a purchase, freeing smoke-fouled deadbolts in Janes Village, and setting up locksets and contractor lockboxes on rebuild sites. If your Hyundai key is part of the same to-do list, we can often help with both in one visit. Call (323) 997-8867.

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

Need a Hyundai key in Altadena?

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

Call (323) 997-8867

Hyundai keys in Altadena — FAQs

What if I lost all my Hyundai keys in Altadena?
We can help with an all-keys-lost situation for Elantra and Sonata models. We come to your car, confirm the correct key by VIN, and make and program a new one on site. Call (323) 997-8867 any time, day or night.
Can you make a spare Hyundai key before I lose the last one?
Yes. Making a spare while you still have a working key is usually simpler than starting from nothing. Call (323) 997-8867 and we will come to you in Altadena and confirm the right key for your vehicle by VIN.
Do I need the original key to get a replacement?
No. If you have no original key, we can still make a new one after verifying ownership and confirming the correct key by VIN. Having a working key can make the process more straightforward, but it is not required.
What is the difference between a bladed transponder key and a push-button Smart Key?
A transponder key has a cut metal blade plus an electronic chip that must be programmed to the car. A Smart Key is a push-button fob that lets you start the car without inserting a blade. Which one your Elantra or Sonata uses depends on the year and trim.
How do you confirm which key my Hyundai needs?
We use your VIN and look at the vehicle itself, rather than guessing from the model name alone. That tells us whether it takes a transponder key or a Smart Key fob, so we prepare the right one.
Do I have to tow my Hyundai to a dealer?
No. We are fully mobile, so we work at your car in Altadena, whether at home, at a trailhead, or in a parking lot. There is usually no need to tow the vehicle for a key replacement.
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