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February 13, 2020 Service bulletin

This bulletin provides information related to the Engine Control Module (ECM) software update for 2018

Hyundai technical service bulletin 20-01-008H for 2018-2019 Hyundai Elantra.

Bulletin number
20-01-008H
Component
Engine and engine cooling
Summary
This bulletin provides information related to the Engine Control Module (ECM) software update for 2018 - 2019MY Elantra (AD/ADA) vehicles equipped with 2.0L engine. This software update includes cylinder imbalance learning logic optimization for Malfunction Indicator Light illumination with DTC P0300/P0301/P0302/P0303/P0304 (Cylinder “X” – misfire detected).

Owners of these vehicles have filed 284 complaints in the engine category.

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