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Service bulletin TSB_ELE413

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)
TypeService bulletin
NHTSA id11030344
Published by NHTSA2026-03-31
Manufacturer's numberTSB_ELE413
Manufacturer's date2026-03-20
NHTSA componentELECTRICAL SYSTEM
Manufacturer's systemELE

NHTSA's summary

TECHNICAL SERVICE BULLETIN: DCU COMMUNICATION LOGIC IMPROVEMENT - This bulletin provides the procedure to upgrade the Data Connectivity Unit (DCU) system software on some 2025–2026MY vehicles listed in the table below. Kia has identified that Connected Car Services (CCS) functionality may intermittently fail due to temporary DCU communication issues. This condition can impact convenience and connectivity features by causing the Remote Start and Remote Climate functions to become inoperative, prevent vehicle status updates in the Kia Access app, and interrupt connected navigation routing services.

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 CARNIVAL2025, 2026
KIA CARNIVAL HYBRID2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
KIA EV92025, 2026
KIA K42025, 2026
KIA K52025, 2026
KIA SORENTO2025, 2026
KIA SORENTO HYBRID2025, 2026 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
26V0460002026-01-26. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
25V1150002025-02-24. ELECTRICAL SYSTEM:PROPULSION SYSTEM; POWER TRAIN:DRIVELINE:DRIVESHAFT
25V0060002025-01-13. ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE; EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS
24V7570002024-10-10. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

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_BOD3592026-09-30. Service bulletin. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: FRONT VIEW CAMERA REPLACEMENT (SA656) - This bulletin provides information to replace the front view camera on certain 2026MY Sorento Hybrid (MQ4 HEV) and Sorento Plug-In Hybrid (MQ4 PHEV) vehicles produced from January 09, 2026 through January 15, 2026. The affected vehicles may exhibit various warning lights illuminated on the instrument cluster accompanied by DTC(s) C160449 and/or C160649 due to unstable voltage input from the front view camera. If the DTC(s) listed are stored, certain camera-related ADAS functions may become inoperative, accompanied by associated warning lights/messages.
PS8142026-09-18. Service bulletin. This Pitstop provides information related to Electric Vehicle (EV) charging on 2024 - 2026MY EV9 (MV1, MV1a) vehicles. In some cases, high-voltage charging performance may be limited or inoperative and accompanied by an illuminated malfunction indicator lamp (MIL) with DTC P343A98 stored. This condition may occur if the Electric Water Pump #1 (Power Electronics) E65 connector and Electric Water Pump #2 (High-Voltage Battery) E66 connector being inadvertently swapped.
TSB_CLI049_R22026-09-02. 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.
PI2601B_TSB2026-08-29. Service bulletin. TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: WIPER MESSAGE LOGIC IMPROVEMENT (PI2601B) - This bulletin provides information to install enhanced windshield wiper software on certain 2024–2026MY EV9 (MV1, MV1a) vehicles as listed.
PI2601B_QA2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: QUESTION AND ANSWER (PI2601B) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Product Improvement Campaign PI2601B.
PI2601B_OWNR2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER NOTIFICATION (PI2601B) - This document is the owner notification advising that Kia is conducting a Product Improvement Campaign on all 2024-2025 MY and certain 2026 MY EV9 vehicles to install enhanced windshield wiper software that provides drivers with additional reminders related to the use of the windshield wipers during winter conditions.
PI2601B_OM_Leaf2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER'S MANUAL INSERT LEAFLET (PI2601B) - This document is the PI2601B Owner's Manual Insert Leaflet that contains revised information for wipers. Vehicle owners are advised to keep this leaflet with the Owner's Manual.
PI2601B_DPSM2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (PI2601B) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a a Product Improvement Campaign on all 2024-2025 MY and certain 2026 MY EV9 vehicles, manufactured from September 25, 2023 through July 16, 2026, to install enhanced windshield wiper software that provides drivers with additional reminders related to the use of the windshield wipers during winter weather conditions.
PI2601B_DP2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: DEALER PRINCIPAL MEMO (PI2601B) - This document is the announcement to the dealer principals advising that Kia is conducting a Product Improvement Campaign on all 2024-2025 MY and certain 2026 MY EV9 vehicles, manufactured from September 25, 2023 through July 16, 2026, to install enhanced windshield wiper software that provides drivers with additional reminders related to the use of the windshield wipers during winter weather conditions.
OTA_ELE427_RELEASE_NOTES2026-08-29. Over-the-air update. OVER-THE-AIR: OVER-THE-AIR SOFTWARE UPDATE FOR COMMUNICATION CONTROL UNIT: This Over-the-Air (OTA)software update is designed to update the Communication Control Unit (CCU) logic of certain 2025 – 2026MY EV9 vehicles. This update is designed to improve the Communication Control Unit (CCU) logic to enhance charging-related messaging in the app.