Kia & Hyundai All Keys Lost: Why the Immobiliser PIN Matters
Losing one key to your Kia or Hyundai is an inconvenience. Losing every key is a different order of problem. With no working key present, the car is immobilised and there is no valid reference for the system to lean on — so “all-keys-lost” (AKL) is a bigger, more skilled job than adding a spare. And on a Kia or Hyundai, one thing sits at the centre of it: the immobiliser PIN.
What the immobiliser PIN / security code is
Kia and Hyundai — sister brands in the Hyundai Motor Group — tie each car to a security code, often called the immobiliser PIN or PIN code. It is a number bound to that specific vehicle. To enrol a brand-new key when none of the originals are present, the programming tool has to supply that code so the immobiliser will trust the new key. No valid code, no start — no matter how perfectly the blade is cut.
Why AKL is harder than a spare
When you still have one working key, programming a second is relatively easy: the car already trusts a key, so the new one is enrolled against it. Lose them all and that shortcut disappears. The locksmith has to:
- Gain non-destructive entry to the car — no drilling, no broken glass.
- Cut a correct blade to the lock, either from the key code or by reading the door lock.
- Retrieve the immobiliser PIN / security code for the vehicle — read by OBD or looked up from the car’s details.
- Generate and enrol a fresh key to the immobiliser so the car starts before we leave.
The PIN step is the part a general locksmith or a key-cutting kiosk cannot do — it needs the right dealer-level tooling and know-how.
Flip key vs smart key changes the detail
The AKL method is the same in principle across the range, but the key form affects the work:
- Folding flip-key cars (older and entry trims, e.g. many Kia Picanto and Hyundai i10 models) use an ID46-class transponder and are usually a straightforward roadside AKL once the PIN is in hand.
- Keyless smart-key cars (newer SUVs like the Kia Sportage and Hyundai Tucson) use a secure AES smart fob — the part costs more and keyless AKL takes longer.
Note: whether your exact car needs a PIN read, and the chip it uses, depends on the model, trim and build date [verify against your VIN]. We confirm this from your registration before we set off.
What to have ready — and why not to tow it to a dealer
It helps to have proof of ownership (V5C and photo ID) to hand — a reputable locksmith asks for it precisely because AKL creates a working key to your car. The dealer alternative means recovering the immobilised vehicle, waiting days for an appointment, and paying for the key, the coding and the transport on top. A mobile specialist comes to the car, retrieves the PIN and programmes the key on the spot — so you skip the recovery bill and the wait entirely.
Sort your all-keys-lost with Lock City
Lock City handles Kia and Hyundai all-keys-lost across Bristol, Bath and South Gloucestershire — mobile, no dealer recovery, PIN retrieval included. See our lost car keys service for how it works, then your model: Kia Sportage, Kia Ceed, Hyundai Tucson or Hyundai i30. The full Kia and Hyundai ranges are on our hubs. Because AKL depends on the exact car, tell us your reg on 07967 097 899 and we will confirm the job and quote before we travel.