Genesis G80 2021–2025 — service campaign
Bulletin 25-01-051G TSB · NHTSA communication 11021791 · issued Aug 6, 2025
Service campaign
communication type
Engine
component
2021–2025
model years
12
vehicle entries
Official summary
Certain G80 (RG3), GV70 (JK1/JK1A), and GV80 (JX1) vehicles equipped with Theta III 2.5L T-GDI engines may illuminate the Check Engine Light as a result of misfire DTCs P0300, P0301, P0302, P0303, or P0304 during cold start. This bulletin provides instructions for updating the Engine Control Module (ECM).
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.