Open 24/7 · Greater Los Angeles & Ventura County

(323) 997-8867
Crenshaw Lock

Hyundai Sonata · car keys & fobs

Hyundai Sonata Car Key Replacement

Crenshaw Lock Company provides fully mobile Hyundai Sonata key replacement and spare key service, including all keys lost, 24/7 across Greater Los Angeles and Ventura County. We come to your vehicle and confirm the correct key by VIN. Call (323) 997-8867.

  • Mobile — we come to your vehicle
  • Keys, fobs & transponders 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 Sonata is stressful, but you do not need a tow to a dealership. Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are fully mobile: we come to wherever the Sonata is parked. We have no shop, so everything happens at your vehicle.

The Sonata has been sold across model years 2007 to 2024, and the key system changed over that span. Older cars generally use a transponder key, either a bladed key or a flip key. Newer cars generally use a proximity smart key with push-button start on many trims. The exact key, chip and programming depend on your trim and VIN, so we confirm the correct key by VIN before cutting anything.

Whether you need a spare key before you get stuck or you have lost every key (an all-keys-lost situation), we can help. Having a spare made is usually simpler than starting from nothing, but both are routine mobile jobs. Call (323) 997-8867 any hour.

Hyundai Sonata key systems by year

Earlier years: Transponder bladed or flip key

These Sonatas generally use a metal-bladed key with a transponder chip in the head. Some use a flip-style key where the blade folds into the fob, and many include lock and unlock buttons. The blade is cut to match the ignition and door locks, and the key must also be programmed so the car recognizes it. If you still have a working key, a spare is generally straightforward. If all keys are lost, we can generally create a new key based on the vehicle's VIN and ownership verification. The exact key and programming depend on trim and VIN, and we confirm the correct key by VIN before cutting.

Recent years: Proximity Smart Key with push-button start on many trims

Newer Sonatas on many trims use a proximity smart key. The car senses the fob nearby, so you can unlock the doors and start the engine with a push button without inserting a key. Most of these fobs also contain a hidden emergency blade for the door. Replacement generally involves supplying a compatible fob, cutting the emergency blade if applicable, and programming it to the vehicle so it is recognized. Whether a trim uses a smart key or a bladed key varies, so the exact key and programming depend on trim and VIN. We confirm the correct key by VIN before cutting or programming.

Exact key, chip and programming vary by trim and VIN — we confirm the right key for your car before cutting.

How we replace your key

  1. 1

    Call and describe the situation

    Call (323) 997-8867 and tell us the year, trim and whether you need a spare or have lost all keys. We are available 24/7.

  2. 2

    We come to your Sonata

    We are fully mobile and travel to the vehicle's location in Greater Los Angeles or Ventura County. There is no shop to visit.

  3. 3

    Verify ownership and VIN

    We check your photo ID and proof of ownership, then read the VIN to confirm the correct key for your trim.

  4. 4

    Cut and program the key

    We prepare the correct key for your Sonata, cut the blade if it has one, and program the key so the car recognizes it.

  5. 5

    Test everything

    We test locking, unlocking and starting, plus any remote functions, before we finish.

What to have ready

  • Proof of ownership, such as registration or title
  • Valid photo ID matching the ownership documents
  • The VIN, found on the dashboard near the windshield or on the door jamb sticker
  • Any remaining keys or fobs, if you have them

What affects the price

  • Whether you need a spare key or have lost all keys
  • Transponder bladed or flip key versus a proximity smart key
  • Your trim and VIN, which determine the exact key required
  • Your location and the time of day or night of the call
  • Number of keys you need made

Need a Hyundai Sonata key?

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

Call (323) 997-8867

Find your year

Hyundai Sonata keys — FAQs

What if I lost all my Hyundai Sonata keys?
We can help with an all-keys-lost situation. We verify ownership, read the VIN to confirm the correct key, then make and program a new key at your vehicle. Call (323) 997-8867 any time.
Can you make a spare Sonata key?
Yes. A spare is often simpler when you still have a working key. Having one made now can save you from a more difficult lockout later.
What if I have no original key at all?
That is fine. With proof of ownership, photo ID and the VIN, we can generally make a new key without an original.
What is the difference between a push-button start key and a bladed key?
Bladed or flip keys use a cut blade with a transponder chip. Smart keys let the car sense the fob so you can start with a push button. Which one your Sonata uses depends on trim and VIN.
Do you have a shop I need to visit?
No. We are fully mobile and come to your vehicle, so there is nothing to tow or drop off.
What do you need from me to get started?
Proof of ownership, a photo ID and the VIN. We confirm the correct key by VIN before cutting.
Will the new key work exactly like my original?
The goal is a key that locks, unlocks and starts your Sonata. Remote functions depend on the key type chosen for your trim and VIN.
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