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September 22, 2026 Service campaign

Hyundai has become aware that certain Kona vehicles equipped with 1.6T-GDI engines may not meet engine-out...

Hyundai technical service bulletin 9D1 OL for 2021 Hyundai Kona.

Bulletin number
9D1 OL (9D1)
Component
Engine
Summary
Hyundai has become aware that certain Kona vehicles equipped with 1.6T-GDI engines may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matter (PM) emission standards.

Owners of these vehicles have filed 81 complaints in the engine category.

Vehicles covered

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