Service bulletins for the 2025 Kia EV6
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.
38 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with component: Engine are shown. Show all
| SC373B_OWNR | 2026-09-30. Service campaign. ENGINE; VISIBILITY/WIPER. VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC373B) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign on certain 2024-2026 MY EV6 vehicles to replace the 3-way coolant valve assembly with a new one. In addition, dealers will inspect the 3-way coolant valve harness connector for corrosion and, if necessary, replace the harness connector. |
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| SC373_TSB_R2 | 2026-09-30. Service bulletin. ENGINE; VISIBILITY/WIPER. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: 3-WAY COOLANT VALVE REPLACEMENT (SC373 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 to replace the 3-way coolant valve. In addition, inspect the 3-way coolant valve harness connector for corrosion, and if necessary, replace the harness connector on certain 2024-2026MY EV6 (CV, CVa) vehicles produced from August 07, 2023 through June 18, 2026. The 3-way coolant valve in the subject vehicles may become damaged and result in a coolant leak. As a result, corrosion may also be present in the 3-way coolant valve harness connector. An inoperative 3-way coolant valve or corrosion within the harness connector may result in reduced Heating, Ventilation, and Air Conditioning (HVAC) performance and/or in the illumination of the “Check electric vehicle system” or “Refill Coolant” warning messages in the instrument cluster. |
| SC373_TSB_R1 | 2026-09-30. Service bulletin. ENGINE; VISIBILITY/WIPER. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: 3-WAY COOLANT VALVE REPLACEMENT (SC373 Revision 1) - 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 3-way coolant valve. In addition, inspect the 3-way coolant valve harness connector for corrosion, and if necessary, replace the harness connector on certain 2024-2026MY EV6 (CV, CVa) vehicles produced from August 07, 2023 through June 18, 2026. The 3-way coolant valve in the subject vehicles may become damaged and result in a coolant leak. As a result, corrosion may also be present in the 3-way coolant valve harness connector. An inoperative 3-way coolant valve or corrosion within the harness connector may result in reduced Heating, Ventilation, and Air Conditioning (HVAC) performance and/or in the illumination of the “Check electric vehicle system” or “Refill Coolant” warning messages in the instrument cluster. |
| SC373A_OWNR | 2026-09-02. Service campaign. VISIBILITY/WIPER; ENGINE. VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC373A) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign on certain 2024-2026 MY EV6 vehicles to replace the 3-way coolant valve assembly with a new one. In addition, dealers will inspect the 3-way coolant valve harness connector for corrosion and, if necessary, replace the harness connector. |
| SC373_TSB | 2026-09-02. Service bulletin. VISIBILITY/WIPER; ENGINE. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: 3-WAY COOLANT VALVE REPLACEMENT (SC373) - This bulletin provides information to replace the 3-way coolant valve. In addition, inspect the 3-way coolant valve harness connector for corrosion, and if necessary, replace the harness connector on certain 2024-2026MY EV6 (CV, CVa) vehicles produced from August 07, 2023 through June 18, 2026. The 3-way coolant valve in the subject vehicles may become damaged and result in a coolant leak. As a result, corrosion may also be present in the 3-way coolant valve harness connector. An inoperative 3-way coolant valve or corrosion within the harness connector may result in reduced Heating, Ventilation, and Air Conditioning (HVAC) performance and/or in the illumination of the “Check electric vehicle system” or “Refill Coolant” warning messages in the instrument cluster. |
| SC373_QA | 2026-08-21. Service campaign. VISIBILITY/WIPER; ENGINE. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC373) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC373. |
| SC373_DPSM | 2026-08-21. Service campaign. ENGINE; VISIBILITY/WIPER. VOLUNTARY SERVICE CAMPAIGN:DEALER PARTS AND SERVICE MANAGER MEMO (SC373) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Service Campaign on certain 2024-2026 MY EV6 vehicles, manufactured from August 7, 2023 through June 18, 2026, to replace the 3-way coolant valve assembly with a new one. In addition, dealers will inspect the 3-way coolant valve harness connector for corrosion and, if necessary, replace the harness connector. |
| SC373_DP | 2026-08-21. Service campaign. ENGINE; VISIBILITY/WIPER. VOLUNTARY SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC373) - This document is the announcement to the dealer principals advising that Kia is conducting a Voluntary Service Campaign on certain 2024-2026 MY EV6 vehicles, manufactured from August 7, 2023 through June 18, 2026, to replace the 3-way coolant valve assembly with a new one. In addition, dealers will inspect the 3-way coolant valve harness connector for corrosion and, if necessary, replace the harness connector. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.