Hyundai Elantra 2021 — technical service bulletin
Bulletin 21-BE-002H · NHTSA communication 10188242 · issued Feb 4, 2021
Technical service bulletin
communication type
Electrical System
component
2021
model years
5
vehicle entries
Official summary
This bulletin describes the procedure to update the radio software to help reduce the disconnection occurrences.
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.