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March 6, 2026 Service bulletin

Illuminated Check Engine light for diagnostic trouble code (DTC) P218100 or P013300 which are related to...

Hyundai technical service bulletin 26-EM-006H TSB for 2024-2025 Hyundai Elantra.

Bulletin number
26-EM-006H TSB
Component
Engine
Summary
Some Elantra (CN7) vehicles equipped with the 2.0L AKS NU PE engine may exhibit an illuminated Check Engine light for diagnostic trouble code (DTC) P218100 or P013300 which are related to the Integrated Thermal Management Module (ITM) and Oxygen Sensor monitoring. This bulletin provides instructions to update the Engine Control Module (ECM) logic to resolve the condition.

Owners of these vehicles have filed 11 complaints in the engine category.

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