WenmarOpen by Wenmar Pro

Service bulletin TSB_ENG231

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)
TypeService bulletin
NHTSA id10201439
Published by NHTSA2021-10-02
Manufacturer's numberTSB_ENG231
Manufacturer's date2021-09-14
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

TECHNICAL SERVICE BULLETIN: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC22) - This bulletin provides information related to extracting "in use performance tracking" emissions data from the Engine Control Unit (ECU) of certain vehicles sold in California. The California Air Resources Board (CARB) requires the emissions data from vehicles with a minimum of 3,000 accumulated miles without reprogramming or resetting.

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 CARNIVAL2022
KIA K52022
KIA NIRO2022
KIA NIRO EV2022 (the catalog's model; the bulletin names a series or trim of it)
KIA NIRO HYBRID2022 (the catalog's model; the bulletin names a series or trim of it)
KIA NIRO PHEV2022 (the catalog's model; the bulletin names a series or trim of it)
KIA RIO2022
KIA SELTOS2022
KIA SORENTO2022
KIA SORENTO HYBRID2022 (the catalog's model; the bulletin names a series or trim of it)
KIA SORENTO PHEV2022 (the catalog's model; the bulletin names a series or trim of it)
KIA SOUL2022
KIA SPORTAGE2022
KIA STINGER2022
KIA TELLURIDE2022

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

Recalls for the same vehicles and component
20250832025-02-18. Engine
25V0990002025-02-17. ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
20241462024-03-04. Engine
24V1690002024-03-01. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER:HOSES/PLUMBING
22V2020002022-03-29. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PIPES, HOSES, AND FITTINGS

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
TSB_ENG2702026-09-30. Service bulletin. TECHNICAL SERVICE BULLETIN: EXCESSIVE ENGINE OIL CONSUMPTION: This bulletin provides information on diagnosing and/or repairing a 2020-2025MY Telluride (ON) vehicle's engine, which may exhibit a symptom of excessive oil consumption. Follow the flowchart on page 2 in this procedure to repair a vehicle exhibiting excessive oil consumption.
TSB_ENG2632026-08-28. Service bulletin. TECHNICAL SERVICE BULLETIN: MISFIRE CONCERN DUE TO OVERRUNNING ALTERNATOR DECOUPLER - This bulletin provides information to address unresolved misfire events on some 2020–2024MY Forte (BDm) produced from January 1, 2019 through September 30, 2024, and 2020–2022MY Soul (SK3) vehicles produced from November 1, 2018 through May 31, 2022 equipped with a Gamma 1.6L T‑GDI engine. In certain cases, misfire symptoms may persist after completing normal diagnostic procedures and replacing ignition‑related components (spark plugs, ignition coils, and fuel injectors). If misfire concerns remain after these repairs are performed, excessive torsional oscillation of the Overrunning Alternator Decoupler (OAD) pulley may be the contributing factor. This bulletin provides the procedure to replace the OAD pulley with the updated Overrunning Alternator Pulley (OAP) kit and associated damper components.
SC369_TSB2026-07-29. Service bulletin. TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA III 2.5L T-GDI ECM SOFTWARE LOGIC IMPROVEMENT (SC369) - This bulletin provides information to upgrade the engine control module (ECM) software to improve combustion stability by optimizing injector fuel injection control during the initial driving period on certain 2022-2023MY Stinger (CK) vehicles equipped with the Theta III 2.5L T-GDI ULEV engine, manufactured from February 1, 2021 through April 11, 2023. 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.
SC369_STKR2026-07-28. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: SC369_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION LABEL/STICKER
SC369_QA2026-07-28. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER (SC369) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign SC369.
SC369_POC2026-07-28. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: SC369_POC: PROOF OF CORRECTION CARD
SC369__OWNR2026-07-28. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC369) - 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 2022-2023 MY Stinger vehicles equipped with the 2.5L Turbocharged Gas Direct Injection (T-GDI) engine to ensure compliance with emissions regulations.
SC369_DPSM2026-07-21. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC369) - This document is the announcement to the dealer Parts and Service managers 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 for 2022-2023 MY Stinger vehicles equipped with the 2.5L T-GDI engine and manufactured from February 1, 2021 through April 11, 2023.
SC369_DP2026-07-21. Emissions. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC369) - 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 for 2022-2023 MY Stinger vehicles equipped with the 2.5L T-GDI engine and manufactured from February 1, 2021 through April 11, 2023.
WTY045_TSB2026-06-18. Warranty extension. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: OIL FILTER HOUSING GASKET REPLACEMENT (WTY045) - This bulletin provides information regarding the ‘Warranty Extension Program (WTY045)’ for the inspection and, if necessary, replacement of the oil filter housing gasket on certain 2020–2025 MY Telluride (ON) vehicles produced from January 9, 2019, through June 12, 2025. Under this program, the New Vehicle Warranty coverage for this condition is extended from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever occurs first, starting from the date the vehicle was first put into service. Affected vehicles may develop an engine oil leak from the oil filter housing gasket. During the extended warranty period, inspect and, if necessary, replace the oil filter housing gasket at no cost to the customer.