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Emissions SC340_OWNR_UM103

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeEmissions
NHTSA id11026900
Published by NHTSA2026-01-03
Manufacturer's numberSC340_OWNR_UM103
Manufacturer's date2025-12-19
Campaign id or software versionSC340
NHTSA componentENGINE

NHTSA's summary

VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 103 / UM) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) for certain 2016-2020 MY Sorento vehicles equipped with 2.4L Gas Direct Injection (GDI) engines to ensure compliance with emissions regulations.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
KIA SORENTO2016, 2017, 2018, 2019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20196392019-12-17. Engine
20191432019-03-18. Engine
18V9070002018-12-19. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
17V5860002017-09-21. ENGINE AND ENGINE COOLING:ENGINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SC365_OWNR_UM2026-09-18. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC365) - This document is the owner notification advising that Kia is conducting an important Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) to ensure compliance with emissions regulations on the 2019-2020 MY Sorento vehicles manufactured from January 24, 2018 through October 26, 2020 and 2019-2021 MY Sedona vehicles manufactured from February 13, 2018 through July 8, 2020 equipped with 3.3L GDI engines.
SC365_TSB2026-09-18. Emissions. TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: This bulletin provides the procedure to update the emissions‑related logic of the Engine Control Unit (ECU) system software on certain 2019–2020MY Sorento (UMa) and 2019–2021MY Sedona (YP) vehicles equipped with the 3.3L GDI Lambda II engine, as listed in the table below. The subject vehicles may have been produced with engine calibrations that can cause the vehicle to release air pollutants that exceed Federal and California standards. These standards were established to protect the public’s health and welfare from the dangers of air pollution.
SC365_STKR2026-09-18. Emissions. SC365_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION LABEL/STICKER
SC365_POC2026-09-18. Emissions. SC365_POC: PROOF OF CORRECTION CARD
SC365_QA2026-09-18. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER (SC365) – This document is the Question and Answer Guide containing the most frequently asked questions regarding Voluntary Emissions Service Campaign SC365.
SC365_DPSM2026-09-18. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC365) - This document is the announcement to dealer Parts and Service managers advising that Kia is conducting an important Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) to ensure compliance with emissions regulations on the 2019-2020 MY Sorento vehicles manufactured from January 24, 2018 through October 26, 2020 and 2019-2021 MY Sedona vehicles manufactured from February 13, 2018 through July 8, 2020 equipped with 3.3L GDI engines.
SC365_DP2026-09-18. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC365) - This document is the announcement to the dealer principals advising that Kia is conducting an important Voluntary Emissions Service Campaign to improve the emissions software logic in the Electronic Control Module (ECM) to ensure compliance with emissions regulations on the 2019-2020 MY Sorento vehicles manufactured from January 24, 2018 through October 26, 2020 and 2019-2021 MY Sedona vehicles manufactured from February 13, 2018 through July 8, 2020 equipped with 3.3L GDI engines.
SC340_TSB_R52026-05-01. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSIONS: ECM LOGIC IMPROVEMENT (SC340 REVISION 5) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to upgrade the Electronic Control Module ‘ECM’ system software for certain 2016-2020MY Optima, 2016-2020MY Sorento, 2017-2022MY Sportage vehicles equipped with 2.4L Theta II engines listed in the table below. Kia has become aware that certain 2016-2022MY vehicles equipped with 2.4L Theta II engines may have engine calibrations that were not optimized for emissions standards under certain specific conditions. These calibrations may cause the vehicle to release air pollutants which exceed Federal and California standards. These standards were established to protect your health and welfare from the dangers of air pollution.
WTY026_TSB_R22026-04-01. Service bulletin. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: OIL PRESSURE SWITCH (OPS) REPLACEMENT (WTY026 REVISION 2) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information regarding the replacement of the Oil Pressure Switch associated with the ‘Warranty Extension Program’ (WTY026) on some 2014-2018MY vehicles listed in the table below, for repairs that may be necessary to address an Oil Pressure Switch leak in the eligible vehicles listed below from 10 years/100,000 miles to 15 years/150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address the Oil Pressure Switch leaking condition at no cost to the customers during this extended warranty period.
SC340_TSB_R42026-03-13. Emissions. TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSION SECM LOGIC IMPROVEMENT (SC340 REV 4) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to upgrade the Electronic Control Module ‘ECM’ system software for certain 2016-2022MY vehicles equipped with 2.4L Theta II engines listed in the table below. Kia has become aware that certain 2016-2022MY vehicles equipped with 2.4L Theta II engines may have engine calibrations that were not optimized for emissions standards under certain specific conditions. These calibrations may cause the vehicle to release air pollutants which exceed Federal and California standards. These standards were established to protect your health and welfare from the dangers of air pollution.