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October 23, 2025 Emissions

Voluntary emissions service campaign: dealer principal memo (SC340)

Kia technical service bulletin SC340_DP for 2016-2020 Kia Sorento, 2016-2020 Kia Optima and 2017-2022 Kia Sportage.

Bulletin number
SC340_DP (SC340)
Component
Engine
Summary
VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC340) - This document is the announcement to the dealer principals advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) to ensure compliance with emissions regulations in certain 2017-2022 MY Sportage vehicles manufactured from December 10, 2015, through December 7, 2021, certain 2016-2020 MY Optima vehicles manufactured from August 28, 2015, through June 23, 2020, and certain 2016-2020 MY Sorento vehicles manufactured from October 27, 2014, through November 4, 2020, equipped with 2.4L Theta GDI engines.

Owners of these vehicles have filed 2,952 complaints in the engine category.

Vehicles covered

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