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Service bulletins for the 2024 Kia Niro

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.

43 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
TSB_CLI049_R22026-09-02. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. TECHNICAL 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.
TSB_ELE4262026-08-27. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN GEN 5.0 WIDE SOFTWARE UPDATE - This bulletin provides information on the Audio Video Navigation (AVN) system software update for certain vehicles equipped with AVN5W and Navigation System listed in the table below. Affected vehicles may overestimate travel times during route calculation.
TSB_ELE4222026-06-03. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater available at update.kia.com. The software update may improve system performance, enhance existing features, and apply the latest operating software for supported vehicles (2021-2026MY All Models).
TSB_ELE3942026-03-31. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN5.0W DTC P17A000 DAIGNOSTIC PROCEDURE - This bulletin provides information regarding a potential illuminated Malfunction Indicator Lamp (MIL) accompanied by DTC P17A000 on some 2022-2025MY Hybrid Electric Vehicles (HEV) and Plug-In Hybrid Electric Vehicles (PHEV) equipped with AVN5.0Wide head units listed below. This condition occurs when the Global Positioning System (GPS) module within the Audio Video Navigation (AVN) head unit, sends an inaccurate signal to the Hybrid Power Control Unit (HPCU), causing the DTC to set. There are no drivability symptoms associated with this condition.
SC338_TSB2025-07-01. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. TECHNICAL 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.
SC335_TSB_CLSD2025-07-01. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. TECHNICAL 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.
TSB_ELE3782025-03-26. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT MODEM RESET (SA611) - This bulletin outlines the procedure for resetting the modem in certain 2016-2025MY Kia vehicles listed on page 3 that are equipped with Kia Connect Services. The affected vehicles may encounter the following issues: remote Start/Climate Control function not working, vehicle Status on the Kia Access App not updating, connected routing not functioning properly.
SC335_TSB2025-02-26. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: BMS S/W LOGIC IMPROVEMENT FOR DTC P1BB2 (SC335) - 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 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. 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 Service Campaign supersedes ELE318/SA553).
SC335_QA2025-02-26. Service campaign. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC335) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC335.
SC335_DPSM2025-02-26. Service campaign. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC335) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary 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 certain 2023-2024 MY Niro Hybrid (HEV) vehicles manufactured from June 21, 2022 through February 6, 2023, that have not had SA553 completed yet. This Voluntary Service Campaign supersedes SA553.
SC335_DP2025-02-26. Service campaign. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC335) - This document is the announcement to the dealer principals advising that Kia is conducting a Voluntary 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 certain 2023-2024 MY Niro Hybrid (HEV) vehicles manufactured from June 21, 2022 through February 6, 2023, that have not had SA553 completed yet. This Voluntary Service Campaign supersedes SA553.
SC323_TSB2024-10-30. Service campaign. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: VCMC LOGIC IMPROVEMENT (SC323) - This bulletin provides information to improve the software logic in the Vehicle Charging Management System (VCMS) on certain 2023-2024MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through February 23, 2024. While charging using a 240-V AC (“Level 2”) charger, the subject vehicles may experience an interrupted charging session or a lower charging speed due to a degraded electrical connection from exposure to a damaged charging cable connector. Dealers are to update the ‘VCMS’ ECU with improved software to improve charging speeds and reduce interrupted charging sessions.
SC323_QA2024-10-30. Service campaign. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC323) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC323.
SC323_OWNR2024-10-30. Service campaign. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC323) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign to update the Vehicle Charge Management System (VCMS) Electronic Control Unit (ECU) with improved software in certain 2023-2024 MY Niro EV vehicles.
SC323_DPSM2024-10-30. Service campaign. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC323) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Service Campaign to update the VCMS ECU software to improve charging speeds and reduce interrupted charging sessions on certain 2023-2024 MY Niro EV vehicles, manufactured from July 11, 2022 through February 23, 2024.
SC323_DP2024-10-30. Service campaign. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. VOLUNTARY SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC323) - This document is the announcement to dealer principals advising that Kia is conducting a Voluntary Service Campaign to update the VCMS ECU software to improve charging speeds and reduce interrupted charging sessions on certain 2023-2024 MY Niro EV vehicles, manufactured from July 11, 2022 through February 23, 2024.
PS7712024-09-26. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: TECHNICAL OPERATION: ACTIVE AIRFLAP SYSTEM INSPECTION/CLEANING - This Pitstop provides information regarding the Active Air Flap (AAF) system on some 2023-2025MY Niro PHEV/HEV (SG2 P/HEV) vehicles which may exhibit a “Check Active Air Flap System” message in the instrument cluster and possible MIL ‘ON’ with one or more of the DTCs described below.
TSB_TRA1102024-05-06. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: 6DCT MIL ON DTC (P073F73) LOGIC & LEARNING FUNCTION IMPROVEMENT - This bulletin provides information to upgrade the Dual Clutch Transmission (DCT) software logic on some 2024MY Niro P/HEV (SG2 P/HEV) produced from October 18, 2023 through November 18, 2023. The affected vehicles may exhibit a MIL 'ON' with DTC P073F73 and, in some cases, engage 2nd gear while accelerating from a stop instead of 1st gear.
TSB_ELE3322024-05-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: EWP COOLANT HOSE REPLACEMENT - This bulletin provides information to replace the Electric Water Pump (EWP) coolant hose on some 2023-2024MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through January 24, 2024, which may exhibit a coolant leak from under the bulkhead due to a loosened EWP coolant hose at the EWP connector. If the vehicle continues to be driven in this condition, a "Refill coolant" warning message may appear in the instrument cluster, followed by reduced heater performance. The retainer clip on the EWP coolant hose on the vehicle is positioned horizontally on the hose which may come loose after time. The improved coolant hose has the retainer clip rotated 90 degrees to be positioned vertically.
TSB_ELE303_R22024-03-02. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) - 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 update the software on 5th Generation AVN wide on certain 2020-2024MY Kia vehicles (refer to model list on page 3) to remedy a 'non-responsive' or 'inoperative' radio (FM, AM, SXM, etc. ) concern. The affected AVN unit on the vehicles may not respond when pressing the 'RADIO' hard key/button on the AVN unit or when selecting the 'RADIO' icon on the AVN menu screen.
TSB_ELE3182023-12-05. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: BMS SOFTWARE LOGIC IMPROVEMENT FOR DTC P1BB2 (SA553) - This bulletin provides information to upgrade the Battery Management System (BMS) software logic on certain 2023-2024MY Niro HEV (SG2 HEV) vehicles produced from June 21, 2022 through February 6, 2023, and 2023-2024MY Sportage HEV (NQ5 HEV) vehicles produced from February 15, 2022 to October 28, 2023, which may exhibit a “Check Hybrid System” message displayed on the instrument cluster with DTC P1BB2 stored. This condition may occur when the vehicle is exposed to high heat/hot weather environments.
SC273_TSB_R12023-08-24. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. VOLUNTARY SERVICE CAMPAIGN: VCU SOFTWARE LOGIC UPGRADE (SC273) - 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 software logic of the Vehicle Control Unit (VCU) on certain 2022-2023MY EV6 (CV) vehicles produced from November 17, 2021 through May 30, 2023, and 2023-2024MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through June 30, 2023, in order to enhance the following two (2) functions: 1. Illumination of Brake lamp without depressing the brake pedal when the vehicle is quickly decelerating by way of regenerative braking in i-Pedal mode. 2. Shift operation gear selection into Park (P) automatically when the auxiliary battery's (12V) voltage is critically low and the vehicle is stopped.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.