# P04DB on the 2025 Hyundai Tucson

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P04DB

- [11027789](https://open.wenmarpro.com/bulletins/11027789), 2026-01-27: 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.
- [11025650](https://open.wenmarpro.com/bulletins/11025650), 2025-11-20: 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.
- [11025649](https://open.wenmarpro.com/bulletins/11025649), 2025-11-20: 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 \(Crankcase Ventilation System Disconnected\). This bulletin provides instructions to perform a software update on the Engine Control Module \(ECM\) to resolve this condition.