25-01-083H DCS 0122

Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles equipped with the 1.6T-GDI Gamma II engine may set DTC P04DB00 (Crankcase Ventilation System Disconnected). Technical Service Bulletin (TSB) 25-01-083H provides instructions to perform a software update on the Engine Control Module (ECM) to resolve this condition.