Service bulletin TSB_ELE291

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10235102
Published by NHTSA	2023-04-28
Manufacturer's number	TSB_ELE291
Manufacturer's date	2023-04-10
NHTSA component	ELECTRICAL SYSTEM

NHTSA's summary

TECHNICAL SERVICE BULLETIN: BMS UPGRADE FOR BATTERY CONDITIONING MODE - This bulletin provides the procedure to install the Battery Conditioning Mode function on some 2022MY EV6 (CV) vehicles produced from November 17, 2021 through October 21, 2022 by updating the software logic of the Battery Management System (BMS). This procedure should only be performed if specifically requested by the customer and should be clearly documented on the RO that it is being performed "per customer request." The battery conditioning mode will optimize the Direct Current (DC) charging performance of the electric vehicle (EV) battery in low outdoor temperatures, by allowing the EV battery to preheat prior to arriving at a DC charger site. The software requires that the owner selects a DC charger site as a point of interest (POI) via the vehicle's navigation system to enable the battery conditioning heating when EV battery temperature is below 68°F. Battery heating impact on DC charging may vary depending on initial EV battery temperature and the estimated time to arrive at the POI. It may be possible to enable battery conditioning mode for a longer time prior to departure, as it can help to achieve the longer battery heating time needed in very low temperatures. Enabling the battery conditioning mode will use battery power and temporarily reduce the driving range until the vehicle is charged.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
KIA EV6	2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V431000	2026-07-02. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V867000	2024-11-18. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY
24V200000	2024-03-14. ELECTRICAL SYSTEM:12V/24V/48V BATTERY

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB_CLI049_R2	2026-09-02. Service bulletin. 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_ELE422	2026-06-03. Service bulletin. 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).
WTY044_QA	2026-05-05. Warranty extension. WARRANTY EXTENSION CAMPAIGN: QUESTION AND ANSWER (WTY044) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY044.
WTY044_TSB	2026-05-01. Service bulletin. WARRANTY EXTENSION CAMPAIGN: TECHNICAL SERVICE BULLETIN: ICCU INSPECTION/REPLACEMENT (WTY044) - This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY044) to inspect and, if necessary, replace the Integrated Charging Control Unit (ICCU) and/or the ICCU Fuse on 2022-2024MY EV6 (CV1) vehicles produced from November 17, 2021 through July 22, 2024. The affected vehicles may exhibit difficulty or inability to charge the subject vehicles using Level 1 or Level 2 AC charging and/or inability to use the Vehicle-to-Load (V2L) function, and/or display of the “Check electric vehicle system” warning message. The warranty coverage for repairs related to the ICCU with above symptoms will be extended from 10 years / 100,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
WTY044_REIMB	2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: REIMBURSEMENT FORM (WTY044) - This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the warranty extension campaign program launch.
WTY044_OWNR	2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION (WTY044) - This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage to all owners for certain repairs related to the Integrated Charging Control Unit (ICCU) in 2022-2024 MY EV6 vehicles from 10 years / 100,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address concerns involving the ICCU, which may result in the difficulty or inability to charge your vehicle using Level 1 or Level 2 AC charging and/or inability to use the Vehicle-to-Load (V2L) function to supply AC electric power to external electronic products.
WTY044_DPSM	2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (WTY044) - This document is the announcement to the dealer Parts and Service managers advising that Kia is extending the New Vehicle Limited Warranty coverage to all owners for certain repairs related to the Integrated Charging Control Unit (ICCU) in 2022-2024 MY EV6 vehicles manufactured from November 17, 2021 through July 22, 2024, from 10 years / 100,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address concerns involving the ICCU, which may result in the difficulty or inability to charge the subject vehicles using Level 1 or Level 2 AC charging and/or inability to use the Vehicle-to-Load (V2L) function to supply AC electric power to external electronic products.
WTY044_DP	2026-05-01. Warranty extension. WARRANTY EXTENSION CAMPAIGN: DEALER PRINCIPAL MEMO (WTY044) - This document is the announcement to the dealer principals advising that Kia is extending the New Vehicle Limited Warranty coverage to all owners for certain repairs related to the Integrated Charging Control Unit (ICCU) in 2022-2024 MY EV6 vehicles manufactured from November 17, 2021 through July 22, 2024, from 10 years / 100,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address concerns involving the ICCU, which may result in the difficulty or inability to charge the subject vehicles using Level 1 or Level 2 AC charging and/or inability to use the Vehicle-to-Load (V2L) function to supply AC electric power to external electronic products.
TSB_ELE417	2026-05-01. Service bulletin. TECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infotainment software updates and preparing USB for installation on applicable Kia vehicles. The software downloads and USB preparation process is similar across all supported platforms; however, in‑vehicle installation procedures vary by head unit type.
SC327Y_TSB_R1	2026-01-16. Service bulletin. TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: ICCU AND FUSE REPLACEMENT (SC327Y) - This bulletin provides information related to the Technical Service Bulletin previously published under SC327, titled “ICCU and Fuse Inspection/Replacement and ICCU Software Upgrade.” If DTC P1A9096 is present or stored after ICCU Software Upgrade has been performed per SC327, follow the instructions in this bulletin to replace the ICCU and ICCU fuse.