Hyundai car key replacement in Buffalo Grove, IL
Lost, broken or worn Hyundai key? Here is how Hyundai key and immobilizer systems work, what to try first, and what to have ready when you call Mr Locksmith in Buffalo Grove, IL.
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How Hyundai immobilizers work
Hyundai uses a PIN-based immobilizer on its transponder and smart-key vehicles. Elantra, Sonata, Tucson and Santa Fe changed key architecture more than once, and smart-key models use a different programming path from the flip-key models. Some base trims in the 2011–2022 range were built with a traditional turn key and no engine immobilizer at all.
No locksmith can honestly promise every Hyundai model and year. Whether a key can be made for yours — and where — depends on the year and system. Call (312) 478-6125 with the year, model and VIN and ask before anyone is dispatched. Mr Locksmith is an independent locksmith and is not affiliated with Hyundai.
Common Hyundai key types
- Transponder key
- Flip key
- Smart key (proximity)
All keys lost on a Hyundai
For immobilizer-equipped Hyundais, all-keys-lost involves obtaining the PIN, cutting a key to the vehicle's code, and registering the smart key or transponder through the diagnostic port.
Worth knowing
Certain Hyundai models without an engine immobilizer became frequent theft targets, and Hyundai released an anti-theft software update for many of them. If your car uses a plain turn key, ask your dealer whether the update applies to your VIN.
Before you call about a Hyundai key
- The year, model and trim of your Hyundai
- The VIN — visible through the windshield on the driver's side, or on the registration
- Whether any working key or fob still exists
- Where the vehicle is: driveway, street, parking garage level or commuter lot
When the technician arrives, expect to be asked for photo ID and proof of ownership — the registration, the title, or a lease or financing agreement in your name.
Car keys by make
Key types, immobilizer systems and all-keys-lost notes for each make. Call with the year and model to confirm what can be done for your vehicle.
Common questions
My Hyundai key fob battery died — how do I start the car?
On push-button Hyundais, press the brake and push the start button using the smart key itself; the car reads the key at close range even with a weak battery. The mechanical key inside the fob opens the driver's door.
What does adding a spare Hyundai key involve?
Adding a Hyundai key is done with diagnostic equipment and the vehicle's immobilizer PIN; there is no owner procedure. Registration commonly covers all keys at once, so bring every key you want to keep working.
Locked out or need a lock fixed? Call (312) 478-6125.
We answer 24 hours a day, every day. Tell us where you are and what happened, and ask about the price before a technician is sent.