Hyundai car keys in Walnut · 24/7 mobile
Hyundai Car Key Replacement in Walnut
Need Hyundai car keys in Walnut? Crenshaw Lock Company is fully mobile and available 24/7 for Elantra and Sonata transponder keys and Smart Key fobs, lost-key and spare situations included. We come to your vehicle. Call (323) 997-8867.
- Mobile to your Walnut location
- Keys & fobs programmed on site
- Available 24/7

Losing the key to your Hyundai is stressful, whether you drive an Elantra to class near Mt. San Antonio College or a Sonata on the daily commute. Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are fully mobile: no tow, no dealership trip. We come to the car, wherever it is parked in Walnut.
Hyundai models like the Elantra and Sonata may use a transponder key or a push-button Smart Key fob, depending on the model year and trim. We confirm the exact key for your car by its VIN, so you get the right one the first time. We handle lost keys, adding a spare, and all-keys-lost situations right at your vehicle.
How it works in Walnut
- 1
Call and share your vehicle details
Call (323) 997-8867 any hour. Tell us the model (Elantra, Sonata or another Hyundai), the year, and where the car is parked in Walnut. Let us know whether you have any working key left.
- 2
We come to your Hyundai
Our mobile locksmith drives to your location, whether that is a driveway, a campus lot or a gated community. No towing is needed, and the work happens at the car.
- 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 for your vehicle, whether a transponder key or a Smart Key fob.
- 4
Cut, program and test
We make the new key or fob, program it to your Hyundai and test it thoroughly, including door function and starting. If you want a spare, we can add one during the same visit.
What affects the price
- Key type: a basic transponder key and a push-button Smart Key fob involve different parts and work.
- Your situation: adding a spare when you still have a working key is different from an all-keys-lost job.
- Model and model year: the Elantra, Sonata and other Hyundais can differ in the security setup, which is confirmed by VIN.
- Number of keys: making a spare in the same visit is usually more efficient than a separate trip later.
- Time and location: after-hours calls or hard-to-reach parking can affect the quote.
Hyundai keys across Walnut
Walnut sits between the San Jose Hills and Puente Hills ridgelines, and our mobile service covers both ZIP codes, 91789 and 91788. We help drivers in Walnut Heights, near Suzanne Park and Creekside Park, and anywhere else in town. If your Hyundai is parked at home, we come to the driveway; if it is at work, we come there.
In the Snow Creek gated community, let us know when you call so access to the gate can be arranged ahead of time. Students and commuters around the Mt. San Antonio College area, including Grand Ave., often call us after losing a key between classes, and we meet them at the car. We also help with lockouts and gate or barn locks on hillside properties. Call (323) 997-8867.
See our Hyundai key guides by model and year, or all Walnut services.
Need a Hyundai key in Walnut?
Call (323) 997-8867 — we come to your vehicle 24/7.
Hyundai keys in Walnut — FAQs
What if I lost all my Hyundai keys in Walnut?
Can you make a spare Hyundai key?
What if I don't have the original key?
Is my Hyundai key a push-button Smart Key or a bladed transponder key?
How do you confirm the right key for my car?
Do I need to tow my Hyundai to you?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.