Kia Optima Service Bulletins (2019)
153 manufacturer communications on file.
- September 11, 2026•Document ID: 11037394EmissionsENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC367_OWNR
- Date Added:
- September 19, 2026
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC367) - 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 for 2019-2020 MY Optima vehicles manufactured from May 21, 2018, through June 1, 2020, equipped with the 1.6L T-GDI engine.
Associated Products (2)Associated Documents - September 10, 2026•Document ID: 11037393Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- SC367_TSB
- Date Added:
- September 19, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: This bulletin provides information to upgrade the Electronic Control Module ‘ECM’ system software for certain 2019-2020 MY Optima vehicles manufactured from May 21, 2018, through June 1, 2020, equipped with the 1.6L T-GDI engine to ensure compliance with emissions. Kia has become aware that 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.
Associated Products (2)Associated Documents - September 10, 2026•Document ID: 11037392EmissionsENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC367_STKR
- Date Added:
- September 19, 2026
- Manufacturer:
- KIA
SummarySC367_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION LABEL/STICKER
Associated Products (2)Associated Documents - September 10, 2026•Document ID: 11037391EmissionsENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC367_POC
- Date Added:
- September 19, 2026
- Manufacturer:
- KIA
SummarySC367_POC: PROOF OF CORRECTION CARD
Associated Products (2)Associated Documents - September 9, 2026•Document ID: 11037390EmissionsELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- SC367_QA
- Date Added:
- September 19, 2026
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER (SC367) – This document is the Question and Answer Guide containing the most frequently asked questions regarding Voluntary Emissions Service Campaign SC367.
Associated Products (2)Associated Documents - September 9, 2026•Document ID: 11037389Service CampaignENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC367_DPSM
- Date Added:
- September 18, 2026
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC367) - 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 for 2019-2020 MY Optima vehicles manufactured from May 21, 2018, through June 1, 2020, equipped with the 1.6L T-GDI engine.
Associated Products (2)Associated Documents - September 9, 2026•Document ID: 11037388EmissionsENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC367_DP
- Date Added:
- September 18, 2026
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC367) - 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 for 2019-2020 MY Optima vehicles manufactured from May 21, 2018, through June 1, 2020, equipped with the 1.6L T-GDI engine.
Associated Products (2)Associated Documents - August 28, 2026•Document ID: 11036628Service Bulletin/Repair InstructionsVISIBILITY/WIPER; ELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_CLI049_R2
- Date Added:
- September 2, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - 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 partial repair of the Air Conditioning (A/C) compressor assembly on some 2011MY~ Optima Hybrid (TF HEV, JF HEV/PHEV), 2015MY~ Soul EV (PS EV), 2017MY~ Niro (DE HEV/PHEV/EV), 2022MY~ EV6 (CV), 2021MY~ Sorento (MQ4 HEV/PHEV), 2023MY~ Sportage (NQ5 HEV/PHEV), and 2023MY~ Niro (SG2 EV/HEV/PHEV) vehicles.
Associated Products (42)Associated Documents - June 8, 2026•Document ID: 11034003Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- CS2312_TSB_R2
- Date Added:
- June 18, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - 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 install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) did receive the Anti-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
Associated Products (69)Associated Documents - June 4, 2026•Document ID: 11033934Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- TSB_BOD336
- Date Added:
- June 17, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: KEY AND CYLINDER SET REPLACEMENT - This bulletin provides information to replace the driver’s door lock and trunk lid key cylinders on some 2019-2024MY Kia vehicles listed below. On affected vehicles, the stored key code may not correspond to the mechanical key profile, which can result in incorrect key cutting when the original key is lost or damaged.
Associated Products (15)Associated Documents - April 15, 2026•Document ID: 11031847OtherENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- PI2108_OWNR_501
- Date Added:
- May 1, 2026
- Manufacturer:
- KIA
SummaryPRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2108 Flight 501) - This document is the owner renotification advising that Kia is conducting an important Product Improvement Campaign to perform a software update on 2019-2020MY Kia Optima HEV & PHEV vehicles to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
Associated Products (2)Associated Documents - April 4, 2026•Document ID: 11031854EmissionsENGINE
- Mfr Comm. #:
- SC340_TSB_R5
- Date Added:
- May 1, 2026
- Manufacturer:
- KIA
SummaryVOLUNTARY 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.
Associated Products (16)Associated Documents - March 17, 2026•Document ID: 11030390EmissionsELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- SC340_OWNR_JF&JFA_104
- Date Added:
- April 1, 2026
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 104 ) - 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 Optima vehicles equipped with 2.4L Gas Direct Injection (GDI) engines to ensure compliance with emissions regulations.
Associated Products (5)Associated Documents - March 6, 2026•Document ID: 11029979EmissionsELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- SC340_TSB_R4
- Date Added:
- March 13, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL 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.
Associated Products (16)Associated Documents - February 19, 2026•Document ID: 11028908Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- TSB_CS2312_R1
- Date Added:
- February 19, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - 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 install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 20, which may not have been equipped with an immobilizer and whole Integrated Body control Unit (IBU) / Body Control Module (BCM) did receive the Ant-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
Associated Products (72)Associated Documents - December 19, 2025•Document ID: 11026899EmissionsENGINE
- Mfr Comm. #:
- SC340_OWNR_JF103
- Date Added:
- January 3, 2026
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 103 / JF) - 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 Optima vehicles equipped with 2.4L Gas Direct Injection (GDI) engines to ensure compliance with emissions regulations.
Associated Products (5)Associated Documents - December 18, 2025•Document ID: 11026825Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- TSB_CS2312
- Date Added:
- December 24, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-2022MY Kia vehicles outlined on page 19, which may not have been equipped with an immobilizer and whose Integrated Body Control Unit (IBU) / Body Control Module (BCM) did receive the Anti-Theft Software Logic upgrade under CS2301/02/03/04/05/06/07/08/09 TSBs. In an effort to help prevent thefts of Kia vehicles, a protective cover will be permanently affixed to the ignition cylinder. This Theft Deterrent Ignition Cylinder Protector prevents the removal of the key lock cylinder thereby preventing access to the ignition tumbler.
Associated Products (73)Associated Documents - December 17, 2025•Document ID: 11026980OtherSTRUCTURE:BODY
- Mfr Comm. #:
- CS2312_OWNR
- Date Added:
- January 5, 2026
- Manufacturer:
- KIA
SummaryCUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION (CS2312) - This document is the owner notification advising that Kia is conducting Customer Satisfaction Campaign. A software upgrade that addresses the social media theft method has been made available to owners of eligible Kia model vehicles free of charge at authorized Kia dealers since 2023. In addition to the anti-theft software, a new zinc-reinforced ignition cylinder protector hardware upgrade has been developed and can be installed at the ignition cylinder location to provide additional protection against the social media theft method. Because the subject Kia vehicles were not factory-equipped with an engine immobilizer and were previously eligible for the software upgrade, these vehicles are eligible until March 31, 2027, to have the ignition cylinder protector installed—if requested—at no cost through an authorized Kia dealership. (Mailing of these notifications to vehicle owners will be completed from December 17, 2025 through February 27, 2026)
Associated Products (73)Associated Documents - December 10, 2025•Document ID: 11026533Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- SC340_TSB_R3
- Date Added:
- December 10, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSIONS ECM LOGIC IMPROVEMENT (SC340) - 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.
Associated Products (11)Associated Documents - December 9, 2025•Document ID: 11026698OtherBACK OVER PREVENTION: WARNINGS
- Mfr Comm. #:
- PS797
- Date Added:
- December 18, 2025
- Manufacturer:
- KIA
SummaryPITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultrasonic sensors. The PDW system alerts the driver while parking, by calculating distance based on the difference in signal transmission and reception times between the vehicle (ultrasonic sensor) and an object. The membrane film of the ultrasonic sensor is used for object detention and can be damaged by stone chips or foreign substances while driving. Damage to the cover of the ultrasonic sensor can also lead to damage to the internal circuit. As a result of this external damage, the PDW system may not receive the proper signal from the ultrasonic sensor. In some cases, the system may cause a false alarm, no alert, or phantom warnings by a “Warning Lamp’ to be displayed on the cluster. The ultrasonic sensor membrane film should be always inspected for external damage and if any part replacement should be treated as a general repair, not as a warranty claim repair for this concern. (Please note that this Pitstop only applies to models/trims that are equipped with the ultrasonic sensors.)
Associated Products (157)Associated Documents