Hyundai Elantra 2015–2021 — technical service bulletin
Bulletin 23-01-014H · NHTSA communication 10232184 · issued Feb 13, 2023
Technical service bulletin
communication type
Electrical System
component
2015–2021
model years
11
vehicle entries
Official summary
Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Module), to revise the OEM Hyundai burglar alarm system operation and ignition start logic, and installation of two anti-theft decals for the front windows
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.