Kia Niro Service Bulletins
286 manufacturer communications on file.
- November 20, 2025•Document ID: 11025899Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- SC320_TSB_R1
- Date Added:
- December 2, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: EGR VALVE ASSEMBLY REPLACEMENT (SC320) - 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 replace the Exhaust Gas Recirculation (EGR) Valve Assembly on certain 2024MY Kia vehicles listed in the table below. Kia has become aware that the EGR Valve Assembly in the subject vehicles may not have been manufactured to Kia’s specifications. This condition may cause the vehicle to release air pollutants which exceed Federal and California standards. As a result, the subject vehicles may exhibit an illumination of Malfunction Indicator Lamp (MIL) with DTC(s) P040500, P064200 and/or P065200.
Associated Products (3)Associated Documents - October 22, 2025•Document ID: 11024692Service Bulletin/Repair InstructionsWHEELS
- Mfr Comm. #:
- TSB_GEN099_R3
- Date Added:
- November 1, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: SERVICE ACTION: TIRE MOBILITY KIT INSPECTION & REPLACEMENT/ REPAIR (SA556) - 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 inspect, and if necessary, replace the Tire Mobility Kit (TMK) sealant can or sealant can cap on certain 2023-2024MY Kia vehicles listed on page 5. Lower ambient temperatures can create a vacuum effect inside the TMK sealant can, causing the sealant can cap to open, resulting in the tire sealant leaking.
Associated Products (4)Associated Documents - October 9, 2025•Document ID: 11024346Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- SC345Z_TSB
- Date Added:
- October 17, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: FRONT MOTOR REDUCTION GEAR ASSEMBLY REPLACEMENT (SC345Z) - This bulletin provides information regarding grinding or whining noise coming from the front motor reduction gear assembly after replacing the oil under SC345 (published in August 2025) on certain 2023-2024MY Niro EV (SG2 EV) vehicles produced from December 12, 2022 through February 7, 2024 and EV6 (CV) vehicles produced from December 14, 2022 through February 22, 2024. In rare cases, the front motor reduction gear assembly may exhibit noise after having the oil replaced.
Associated Products (4)Associated Documents - September 12, 2025•Document ID: 11023098EmissionsFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC338_OWNR_SG2_102
- Date Added:
- September 11, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION: EXPANSION (SC338 Flight 102) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to update the battery management system (BMS) to prevent overcharging of the 12V Lithium battery in certain 2023 MY Niro Hybrid (HEV) vehicles to ensure compliance with emissions regulations.
Associated Products (1)Associated Documents - August 22, 2025•Document ID: 11021987Service CampaignPOWER TRAIN
- Mfr Comm. #:
- SC345_OWNR_SG2
- Date Added:
- August 20, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC345) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign to replace the gear oil in the front motor and gear reduction assembly, and fill it to the factory-specified amount in certain Niro EV vehicles, manufactured from December 12, 2022 through February 7, 2024.
Associated Products (2)Associated Documents - August 21, 2025•Document ID: 11022350Service CampaignSERVICE BRAKES
- Mfr Comm. #:
- SC321_OWNR_201
- Date Added:
- September 2, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC321) - This document is the owner renotification advising that Kia is conducting a Voluntary Service Campaign to address a potential corrosion concern with the Integrated Electronic Brake (IEB) in certain 2019-2022 MY Niro EV vehicles that were originally sold in or are currently registered in one of the 28 states with high road salt usage.
Associated Products (4)Associated Documents - August 20, 2025•Document ID: 11022351Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- SC345_TSB
- Date Added:
- September 2, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN FRONT MOTOR REDUCTION GEAR OIL REPLACEMENT (SC345) - This bulletin provides information to replace the front motor reduction gear assembly gear oil on certain 2023-2024MY Niro EV (SG2 EV) vehicles produced from December 12, 2022 through February 7, 2024 and EV6 (CV) vehicles produced from December 14, 2022 through February 22, 2024. During the production of the subject vehicles, the amount of gear oil in the front motor and reduction gear assembly may have been filled below factory specification. If the gear oil level is lower than Kia’s factory specifications, the subject vehicles may eventually produce a grinding noise or whining noise from the front of the vehicle while driving.
Associated Products (4)Associated Documents - August 20, 2025•Document ID: 11021988Service CampaignPOWER TRAIN
- Mfr Comm. #:
- SC345_QA
- Date Added:
- August 20, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC345) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC.
Associated Products (4)Associated Documents - August 20, 2025•Document ID: 11021985Service CampaignPOWER TRAIN
- Mfr Comm. #:
- SC345_DPSM
- Date Added:
- August 20, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC345) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Service Campaign to replace the gear oil in the front motor and gear reduction assembly, and fill it to the factory-specified amount in certain 2023-2024MY EV6 vehicles, manufactured from December 14, 2022 through February 22, 2024 and Niro EV vehicles, manufactured from December 12, 2022 through February 7, 2024.
Associated Products (4)Associated Documents - August 20, 2025•Document ID: 11021984Service CampaignPOWER TRAIN
- Mfr Comm. #:
- SC345_DP
- Date Added:
- August 20, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC345) - This document is the announcement to the dealer principals advising that Kia is conducting a Voluntary Service Campaign to replace the gear oil in the front motor and gear reduction assembly, and fill it to the factory-specified amount in certain 2023-2024MY EV6 vehicles, manufactured from December 14, 2022 through February 22, 2024 and Niro EV vehicles, manufactured from December 12, 2022 through February 7, 2024.
Associated Products (4)Associated Documents - August 15, 2025•Document ID: 11022364EmissionsELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- TSB_SC338_R1
- Date Added:
- September 3, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: BMS S/W LOGIC IMPROVEMENT FOR DTC P1BB2 (SC338) - 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 Battery Management System ‘BMS’ software logic on certain 2023-2024MY Sportage HEV (NQ5 HEV) vehicles produced from February 15, 2022 to December 15, 2023, and 2023MY Niro HEV (SG2 HEV) vehicles produced from June 21, 2022 through April 25, 2023. Due to a software issue, the Battery Management System (BMS) may inadvertently overcharge the 12V Lithium battery. If the 12V Lithium battery becomes overcharged, the subject vehicles may experience a reduction in motive power accompanied by the ‘Check Hybrid System, Stop Safely’ warning message, Hybrid system warning lamp, Service warning lamp, Charging system warning lamp, and a rapid beeping sound for approximately ten (10) seconds. (Note: This Voluntary Emissions Service Campaign supersedes SC335).
Associated Products (3)Associated Documents - July 29, 2025•Document ID: 11021125Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE389
- Date Added:
- July 31, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: SERVICE ACTION: AVN SOFTWARE UPDATE FOR OTA INSTALLATION (SA619) - This bulletin provides the procedure to install the Over-The-Air ‘OTA’ feature on the Audio Video Navigation ‘AVN’ head unit on certain 2025MY Niro PHEV (SG2 PHEV) vehicles produced from June 21, 2024 through April 09, 2025. Over-the-Air Software Updates mark a significant transformation in how Kia owners can care for their vehicle.
Associated Products (1)Associated Documents - July 16, 2025•Document ID: 11020866Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- TSB_BOD339
- Date Added:
- July 23, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: SERVICE ACTION: RIGHT FRONT BODY PANEL SEALANT APPLICATION (SA607) - This bulletin provides instructions to add body sealant to the right front panel seam area, which may not have sufficient sealant applied during assembly on certain 2025MY Niro HEV, PHEV, and EV (SG2 P/HEV, EV) vehicles produced between October 31, 2024, and December 13, 2024. The affected vehicles may exhibit water leak intrusion into the cabin (front passenger seat) floor area.
Associated Products (1)Associated Documents - June 27, 2025•Document ID: 11019728EmissionsFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC338_OWNR_SG2
- Date Added:
- June 25, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC338) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to update the battery management system (BMS) to prevent overcharging of the 12V Lithium battery in certain 2023 MY Niro Hybrid (HEV) vehicles to ensure compliance with emissions regulations.
Associated Products (1)Associated Documents - June 26, 2025•Document ID: 11019904Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- SC338_TSB
- Date Added:
- July 1, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: BMS S/W LOGIC IMPROVEMENT FOR DTC P1BB2 (SC338) - This bulletin provides information to upgrade the Battery Management System ‘BMS’ software logic on certain 2023MY Sportage HEV (NQ5 HEV) vehicles produced from February 15, 2022 to October 28, 2023, and 2023-2024MY Niro HEV (SG2 HEV) vehicles produced from June 21, 2022 through February 6, 2023. Due to a software issue, the Battery Management System (BMS) may inadvertently overcharge the 12V Lithium battery.
Associated Products (4)Associated Documents - June 26, 2025•Document ID: 11019891Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- SC335_TSB_CLSD
- Date Added:
- July 1, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: BMS S/W LOGIC IMPROVEMENT FOR DTC P1BB2 (SC335) CLOSED AND SUPERSEDED TO SC338 (TSB) - This bulletin is now closed. "This bulletin provided information to upgrade the Battery Management System ‘BMS’ software logic on certain 2023-2024MY Sportage HEV (NQ5 HEV) vehicles produced from February 15, 2022 to October 28, 2023, and2023-2024MY Niro HEV (SG2 HEV) vehicles produced from June 21, 2022 through February 6, 2023. Due to a software issue, the Battery Management System (BMS) may inadvertently overcharge the 12V Lithium battery.
Associated Products (4)Associated Documents - June 25, 2025•Document ID: 11019732EmissionsELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- SC338_STKR
- Date Added:
- June 25, 2025
- Manufacturer:
- KIA
SummarySC338_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION LABEL/STICKER
Associated Products (3)Associated Documents - June 25, 2025•Document ID: 11019731EmissionsELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- SC338_QA
- Date Added:
- June 25, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER (SC338) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign SC338.
Associated Products (3)Associated Documents - June 25, 2025•Document ID: 11019729EmissionsELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- SC338_POC
- Date Added:
- June 25, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: SC338_POC: PROOF OF CORRECTION CARD
Associated Products (3)Associated Documents - June 25, 2025•Document ID: 11019722EmissionsFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- SC338_DPSM
- Date Added:
- June 25, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC338) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Emissions Service Campaign to update the battery management system (BMS) to prevent overcharging of the 12V Lithium battery in certain 2023-2024 MY Sportage Hybrid (HEV) vehicles manufactured from February 15, 2022 through October 28, 2023 and 2023 MY Niro Hybrid (HEV) vehicles manufactured from June 21, 2022 through February 6, 2023. These vehicles have not had SA553 completed yet.
Associated Products (3)Associated Documents