Hyundai Tucson 2025 — technical service bulletin
Bulletin 26-BE-002H TSB · NHTSA communication 11028953 · issued Feb 12, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2025
model years
3
vehicle entries
Official summary
Some Tucson Internal Engine Combustion (ICE), Hybrid, and Plug-in Hybrid (NX4, NX4 HEV, and NX4 PHEV) vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. This bulletin provides instructions on how to replace both inoperative horns.
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.