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June 22, 2020 Service bulletin

This service campaign information is related to an Electronic Control Module (ECM) software update to...

Hyundai technical service bulletin Campaign T5A Dea for 2020 Hyundai Sonata.

Bulletin number
Campaign T5A Dea
Component
Electrical system: software
Summary
This service campaign information is related to an Electronic Control Module (ECM) software update to revise the logic for DTC P030X: Cylinder “X” Misfire Detected and P0456: EVAP System Leakage Detected – Very Small Leak. This Service Campaign T5A will replace Service Campaign T4N.

Owners of these vehicles have filed 41 complaints in the electrical category.

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