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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)
TypeOther
NHTSA id11022347
Published by NHTSA2025-09-02
Manufacturer's numberPS791
Manufacturer's date2025-08-22
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

PITSTOP: TECHNICAL OPERATIONS: DCU IDENTIFICATION AND DAIGNOSTIC AID - This Pitstop provides information on identifying the Data Connectivity Unit (DCU) in Kia vehicles equipped with Connected Car Navigation Cockpit (ccNC) and ccNC Lite head units, as well as a diagnostic aid when diagnosing Kia Connect concerns. When diagnosing non-operational Kia Connect concerns, under no circumstance should the DCU be swapped with a known good DCU from another vehicle. Doing so may result in inoperative Kia Connect services on either vehicle and may require the replacement of the known good DCU. If a DCU needs to be replaced, the recommendation is to always order a replacement unit (with the correct P/N) to ensure proper Kia Connect services operations using the newly installed/replaced DCU.

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 CARNIVAL2024
KIA EV62024
KIA EV92024
KIA K42025
KIA K52024
KIA SORENTO2024
KIA SPORTAGE2024

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

Recalls for the same vehicles and component
26V4310002026-07-02. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
26V0460002026-01-26. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
25V8740002025-12-17. TRAILER HITCHES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
25V0060002025-01-13. ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE; EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS
24V8670002024-11-18. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY
24V7570002024-10-10. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
24V2870002024-04-23. ELECTRICAL SYSTEM:WIRING
24V2000002024-03-14. 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
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.
WTY048_TSB2026-09-02. Service bulletin. TECHNICAL SERVICE BULLETIN: HORN ASSEMBLY INSPECTION/REPLACEMENT (WTY048) - This bulletin provides information associated with the Warranty Extension Program (WTY048) to inspect and, if necessary, replace both the high-pitch and low-pitch horn assemblies on certain 2022-2024MY Carnival (KA4) vehicles produced from January 4, 2021 through July 4, 2024. The affected vehicles may experience a distorted or inoperative horn sound caused by excessive moisture and dust exposure over time. The warranty coverage for repairs related to the horn assembly has been extended from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
WTY048_QA2026-09-02. Warranty extension. WARRANTY EXTENSION CAMPAIGN: QUESTION AND ANSWER (WTY048) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY048.
WTY048_OWNR2026-09-02. Warranty extension. WARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION (WTY048) - This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the horn assembly in certain 2022-2024 MY Carnival vehicles from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, starting from the date the vehicle was first put into service. This warranty extension is to address a horn sound malfunction condition free of charge at no cost to the customer.
WTY048_DPSM2026-09-02. Warranty extension. WARRANTY EXTENSION CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (WTY048) - 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 repairs related to the horn assembly for certain 2022-2024 MY Carnival vehicles manufactured from January 4, 2021 through July 4, 2024, from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, from the date the vehicle was first put into service. This warranty extension is to address a horn sound malfunction condition.
WTY048_DP2026-09-02. Warranty extension. WARRANTY EXTENSION CAMPAIGN: DEALER PRINCIPAL MEMO (WTY048) - This document is the announcement to the dealer principals advising that Kia is s extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the horn assembly for certain 2022-2024 MY Carnival vehicles manufactured from January 4, 2021 through July 4, 2024, from 5 years / 60,000 miles to 10 years / 120,000 miles, whichever comes first, from the date the vehicle was first put into service. This warranty extension is to address a horn sound malfunction condition.
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.