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March 13, 2025 Service campaign

The exhaust gas recirculation (EGR) valve assembly in certain vehicles (listed below) may contain a sensor...

Hyundai technical service bulletin 25-01-023H TSB for 2024 Hyundai Sonata and 2024 Hyundai Tucson.

Bulletin number
25-01-023H TSB (9B3)
Component
Engine
Summary
The exhaust gas recirculation (EGR) valve assembly in certain vehicles (listed below) may contain a sensor that was contaminated with solder flux during manufacturing, which could potentially result in an electrical short. An electrical short within the EGR valve could lead to a Malfunction Indicator lamp (MIL) illumination (P0405, P0642, P0652, P0404/P049D/P240F). Follow the information in this bulletin to replace the EGR valve assembly and gasket.

Owners of these vehicles have filed 18 complaints in the engine category.

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