Hyundai Tucson 2025 — service campaign
Bulletin HCE25-92-E770 TSB · NHTSA communication 11023100 · issued Sep 5, 2025
Service campaign
communication type
Electrical System
component
2025
model years
3
vehicle entries
Official summary
This bulletin provides information related to the DCU (DATA CONNECTIVITY UNIT) software enhancement (OTA) for NX4 OB PE/NX4 PE/NX4 PE HEV/NX4 PHEV/NX4a PE/NX4m PE vehicles in Puerto Rico.
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.