2023 Kia Niro Ev TSBs

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.

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.

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.

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.

revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the procedure to upgrade the software logic of the interior Mood Lamp Module (MLM) system on some 2023MY Niro EV, P/HEV (SG2 P/HEV, EV) vehicles produced from April 14, 2023 through May 15, 2023 and 2023MY EV6 (CV) vehicles produced from April 18, 2023 through May 13, 2023, which may exhibit an inoperative mood lamp.

regarding a poor EV battery charging concern on some 2023MY Niro EV (SG2 EV) vehicles produced from January 4, 2022 through March 29, 2023, when charging using a Level 1 or Level 2 charger; however, the concern is not present when using a DC charger. In some cases, the vehicle may exhibit a "Check electric vehicle system", and/or "Stop vehicle and check power supply" message in the instrument cluster display, and/or MIL 'ON' with DTC(s) described below. The Integrated Charging Control Unit (ICCU) performs charging functions for the high voltage and the auxiliary 12V batteries, and depending on the DTC(s) stored, the ICCU may need to be replaced.

procedure to upgrade the software logic of the interior Mood Lamp Module (MLM) system on some 2023MY Niro EV, P/HEV (SG2 P/HEV, EV) vehicles produced from April 14, 2023 through May 15, 2023 and 2023MY EV6 (CV) vehicles produced from April 18, 2023 through May 13, 2023, which may exhibit an inoperative mood lamp.

New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information regarding 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.

of reports of unexpected drainage of the 12-volt battery in some Kia electric vehicles (EVs). While Kias investigation is ongoing, a possible cause of the issue may be third-party applications used by the customer that are causing excessive Kia Connect connections to the customers EV.

software logic of the Vehicle Charging Management System (VCMS) on some 2023MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through February 7, 2023, which may set the DTC P1BAD00 and/or cause a charging issue to the High Voltage Battery (HVB)/Battery System Assembly (BSA) due to higher than "allowed" increased temperature at the charging connector.

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 perform the "Battery EWP Operation Mode for Degassing and Circulation" (battery coolant air bleeding procedure) on the Battery Management System (BMS) for some 2023MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through November 20, 2022, which may have inadvertent air trapped inside of the coolant line due to BMS software logic error of the heater relay, which may generate an MIL 'ON' with DTC P1BA800 stored.

information to perform the "Battery EWP Operation Mode for Degassing and Circulation" (battery coolant air bleeding procedure) on the Battery Management System (BMS) for some 2023MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through November 20, 2022, which may have inadvertent air trapped inside of the coolant line due to BMS software logic error of the heater relay, which may generate an MIL 'ON' with DTC P1BA800 stored.

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.)

New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, and the transmission oil cooler is transferred to the new transmission.

A flush is required ONLY when a transmission is replaced.

is conducting a Voluntary Service Campaign to upgrade the Vehicle Control Unit ("VCU") software logic in certain 2023 MY Niro EV vehicles. Kia is conducting this Voluntary Service Campaign to improve the VCU software logic so that the vehicle&#34s brake lights illuminate during i-Pedal mode when the vehicle reaches a certain deceleration threshold even if you do not release the accelerator pedal fully or depress the brake pedal. Also, this software upgrade will improve the electronic shift logic so that the vehicle will shift into PARK (P) automatically when the auxiliary battery's (12v) voltage is critically low and the vehicle is stationary.

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.

correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, refer to applicable vehicles in the chart starting on page 2.

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.

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 Kias factory specifications, the subject vehicles may eventually produce a grinding noise or whining noise from the front of the vehicle while driving.

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.

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.

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.

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.

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 8) 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.

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.

information to update the software on 5th Generation AVN wide on certain 2020-2023MY Kia vehicles (refer to model list on page 3) to remedy a warning sound accompanied by a 'Slippery road ahead. Drive carefully' or 'Uneven road ahead. Drive carefully' warning which is displayed on the instrument cluster. The current AVN software causes the warning sound and message to repeat approximately every ten (10) seconds, if the vehicle is not in motion, in 'PARK' or driving on even surfaces.

(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.

update the software on 5th Generation AVN wide on certain 2020-2023MY Kia vehicles 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. Follow the procedure outlined in this publication to update the software on 5th Generation AVN wide units using the applicable USB Flash Drive A or B for the applicable vehicle.

most frequently asked questions regarding the Voluntary Service Campaign SC.

most frequently asked questions regarding the Voluntary Service Campaign SC323.

frequently asked questions regarding the Voluntary Service Campaign (SC273B).

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.

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 7. 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.

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.

information to evacuate, vacuum, and recharge the air conditioning system on certain 2023MY EV6 (CV) vehicles produced from January 31, 2023 through June 02, 2023 and Niro P/HEV, EV (SG2 P/HEV, EV) vehicles produced from January 06, 2023 through June 02, 2023. During assembly, the affected vehicles may not have had the correct amount of R-1234yf refrigerant charged in the air conditioning system resulting in poor or inoperative air conditioning.

Parts and Service Managers that Kia is conducting a Voluntary Service Campaign to upgrade the Vehicle Control Unit ("VCU") software logic in certain 2023 MY Niro EV vehicles manufactured from July 11, 2022 through June 30, 2023. Kia is conducting this Voluntary Service Campaign to improve the VCU software logic so that the vehicles brake lights illuminate during i-Pedal mode when the vehicle reaches a certain deceleration threshold, even if the driver does not release the accelerator pedal fully or depress the brake pedal.

is conducting a Voluntary Service Campaign to upgrade the Vehicle Control Unit ("VCU") software logic in certain 2023 MY Niro EV vehicles manufactured from July 11, 2022 through June 30, 2023. Kia is conducting this Voluntary Service Campaign to improve the VCU software logic so that the vehicles brake lights illuminate during i-Pedal mode when the vehicle reaches a certain deceleration threshold, even if the driver does not release the accelerator pedal fully or depress the brake pedal.

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 the procedure to update the software logic of the Cluster (CLU) system on some 2023MY vehicles to allow the Advanced Driver Assistance System (ADAS) default alert volume to be changed. Kia is requesting the completion of this Service Action on all affected vehicles in dealer stock, prior to delivery.

bulletin provides the procedure to update the software logic of the Cluster (CLU) system on some 2023MY vehicles to allow the Advanced Driver Assistance System (ADAS) default alert volume to be changed. Kia is requesting the completion of this Service Action on all affected vehicles in dealer stock, prior to delivery.

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 front carpet floor mat anchors on some 2023MY Niro (SG2 EV, P/HEV) vehicles produced from June 21, 2022 through September 21, 2022, which may have the incorrect 'ring type' floor mat anchors installed during assembly. Follow the procedure outlined in this publication to inspect the front carpet floor mat anchors and if necessary, replace the incorrect ring type with the hook type floor mat anchors required for U.S. specifications.