Hyundai Sonata 2018-2019 Smart Key 4-Button
4-button · 433 MHz · ID8A · Part 95440-C1610
⭐ This is an aftermarket replacement: a 4-button smart key for the Hyundai Sonata 2018-2019, Hyundai part number 95440-C1610, transmitting at 433 MHz with a DST-AES, ID 8A (Texas Instruments 128-bit) transponder. It ships with its emergency insert blade and is registered over OBD with a diagnostic tool. Hyundai also lists 95440-C1500 for the same car with a different layout or approval, so match 95440-C1610 on the original key.
⚙️ Key features
4-button layout
4 buttons as fitted to the Sonata proximity key, with push-button start.
433 MHz with ID8A
433 MHz transmitter paired with a DST-AES, ID 8A (Texas Instruments 128-bit) transponder for proximity entry and push-button start.
Not the 95440-C1500 key
Built for 95440-C1610 only. 95440-C1500 fits the same car but is a different key.
CR2032 coin cell
Runs on a user-replaceable CR2032 battery. The emergency blade slides out of the housing.
💎 Benefits
Same layout as the original
Customers get back the 4 functions they use every day, with nothing missing on handover.
One order, one visit
Key and emergency blade arrive together, ready to program and cut in one visit.
Clear part reference
Part number 95440-C1610 on the listing makes it quick to match against the customer's key.
Lower cost per job
Keeps add-key and all-keys-lost jobs profitable without a dealer order.
👥 Who it's for
Automotive locksmiths
Add-key and all-keys-lost jobs on the Hyundai Sonata with OBD key programmers.
Key shops and counter trade
Stock for walk-in spare key requests on the Sonata.
Dealers and garages
Replacement keys for used Sonata stock and service customers.










