Lost your keys? Don't panic – call 07305 010508 · open 9am – 9pm, 7 days
AutoECU
Hyundai logo
Hyundai Motor Group · keys, coding & repairs

Hyundai car keys, coding & electronics

From Getz to Ioniq 5: the brand that went from bargain to brilliant.

About Hyundai

Hyundai went from budget hatchbacks to award-winning EVs in about twenty years, and the Tucson and i10 are now everywhere. They're dependable and packed with tech, though the smart keys on some models seem to treat 'proximity' as more of a suggestion.

AutoECU helps Hyundai owners with spare and all-keys-lost keys, smart key and push-button start faults, coding and diagnostics, at our Peterborough shop or on your driveway.

Hyundai models & platform codes

UK-market models we commonly work on, with years and the manufacturer's platform / chassis codes. Can't see yours? Ask us, the list isn't exhaustive.

ModelYearsCode
Tucson2021+NX4
Tucson2015-2020TL
ix352010-2015LM
Tucson2004-2010JM
Kona2023+SX2
Kona2017-2023OS
i102020+AC3
i102014-2019IA
i102008-2013PA
i202020+BC3
i202015-2020GB
i202009-2014PB
Bayon2021+BC3 CUV
i302017-2024PD
i302012-2017GD
i302007-2012FD
Ioniq 52021+NE
Ioniq 62022+CE
Ioniq2016-2022AE
Inster2024+AX
Santa Fe2024+MX5
Santa Fe2018-2024TM
Santa Fe2012-2018DM
Santa Fe2006-2012CM
Santa Fe2001-2006SM
i402011-2019VF
ix202010-2019JC
Getz2002-2011TB
Matrix2001-2010FC
Coupe2002-2009GK

Popular Hyundai coding

  • Spare and replacement smart key programming
  • Reversing camera retrofit coding
  • Auto-folding mirrors and lighting preference changes
  • Injector coding on CRDi diesels
  • TPMS sensor registration
  • Towbar electrics coding on Tucson, Santa Fe and Kona
  • Replacement ECU, BCM and smart key module coding

Common Hyundai electronic repairs

  • Smart key 'key not detected' and push-button start faults
  • Immobiliser faults and no-start on older Getz, i10, i20 and Tucson
  • Body control module (BCM) faults affecting locking and lighting
  • Infotainment and navigation screen freezes
  • Instrument cluster faults and warning lights
  • EV and hybrid 12V battery drain and warning faults (Kona Electric, Ioniq)
  • Key fob repairs (worn buttons, broken flip mechanisms, cases)

Hyundai keys & fobs

Transponder blade key

Getz, Matrix, Coupe, Santa Fe SM, Tucson JM

Simple to cut and program; a spare saves a lot of hassle later.

Remote flip key (3-4 button)

i10 PA/IA, i20 PB/GB, i30 FD/GD/PD, ix35, ix20, Santa Fe CM/DM, Tucson TL

Flip mechanisms wear; a new shell and blade is often all it needs.

Smart proximity key (3-4 button)

Tucson TL/NX4, Kona OS, i30 PD, Ioniq, Santa Fe DM/TM, i40 (upper trims)

Push-button start; spares and all-keys-lost done through the OBD port.

Smart key (latest gen)

Kona SX2, Ioniq 5, Ioniq 6, Santa Fe MX5, Inster, i10 AC3, i20 BC3

Newer security systems; send us your reg first so we can check support.

Hyundai questions

Can you program a spare Hyundai smart key?

Yes, most Hyundai smart and flip keys can be programmed on site through the OBD port. Proof of ownership is required. Message AutoECU with your reg and we'll confirm.

Why does my Hyundai say 'key not detected'?

It's often a weak fob battery, but it can also be a faulty antenna, smart key module or interference. A quick diagnostic pins it down. AutoECU can check it at your home or work.

I've lost all my Hyundai keys, do I need the dealer?

No. New keys can usually be cut and programmed at your car, without towing it anywhere. Call or WhatsApp AutoECU and we'll talk you through it.

Need something done on your Hyundai?

We'll fill in the make for you. Just add your reg and what's wrong.

Get my Hyundai quote
WhatsApp us Call 07305 010508