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October 19, 2020 Service bulletin

This bulletin provides information related to the repair of DTC P0420 “Catalytic Converter System Bank 1

Hyundai technical service bulletin 20-FL-010H for 2019 Hyundai Tucson.

Bulletin number
20-FL-010H
Component
Engine and engine cooling
Summary
This bulletin provides information related to the repair of DTC P0420 “Catalytic Converter System Bank 1 - Efficiency Below Threshold” found stored in the Engine Control Module (ECM). The repair involves performing an ECM Update and replacement of the exhaust manifold catalyst.

Owners of these vehicles have filed 204 complaints in the engine category.

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