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Over-the-air update OTA_SA635_R1

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)
TypeOver-the-air update
NHTSA id11029300
Published by NHTSA2026-03-03
Manufacturer's numberOTA_SA635_R1
Manufacturer's date2026-02-10
Campaign id or software versionSA635
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION SOFTWARE UPDATE FOR ELECTRIC WATER PUMP (SA635) - This Over-the-Air (OTA) software update is designed to update the Data Connectivity Unit (DCU) logic of certain 2026 Sportage and Sportage HEV/PHEV and 2025 EV6 vehicles. This update is designed to improve the operation logic of the Data Connectivity Unit (DCU) for remote connectivity. This OTA will be rolled out to all eligible 2026MY Sportage, Sportage HEV/PHEV and EV6 vehicles with an active Kia Connect account.

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 EV62026
KIA SPORTAGE2026
KIA SPORTAGE HYBRID2026 (the catalog's model; the bulletin names a series or trim of it)
KIA SPORTAGE PHEV2026 (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

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
PI2605_TSB2026-09-03. Other. TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: BMU LOGIC IMPROVEMENT (PI2605) - This bulletin provides information regarding a Battery Management System (BMS) software update for certain 2025-2026 EV6 (CV1 eGT, CVa) vehicles as listed in the table below. To improve the diagnostic monitoring of the high-voltage battery in the subject vehicles, Kia has developed enhanced BMS software to improve the detection logic and system response in cases of moisture intrusion into the high-voltage battery.
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.
PI2605_QA2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: QUESTION AND ANSWER (PI2605) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Product Improvement Campaign PI2605.
PI2605_OWNR2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER NOTIFICATION (PI2605) - This document is the owner notification advising that Kia is conducting a Product Improvement Campaign on certain 2025-2026 MY EV6 vehicles to upgrade the Battery Management System (BMS) diagnostic software logic. Our records indicate that you own or lease one of the potentially affected vehicles.
PI2605_DPSM2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (PI2605) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Product Improvement Campaign on certain 2025-2026 MY EV6 vehicles, manufactured from December 17, 2024 through May 29, 2026, to upgrade the Battery Management System (BMS) diagnostic software logic.
PI2605_DP2026-08-29. Other. PRODUCT IMPROVEMENT CAMPAIGN: DEALER PRINCIPAL MEMO (PI2605) - This document is the announcement to the dealer principals advising that Kia is conducting a Product Improvement Campaign on certain 2025-2026 MY EV6 vehicles, manufactured from December 17, 2024 through May 29, 2026, to upgrade the Battery Management System (BMS) diagnostic software logic.
TSB_ELE4292026-07-29. Service bulletin. TECHNICAL SERVICE BULLETIN: CUSTOMER ACTION: UPPER ACTIVE AIR FLAP DUCT ASSEMBLY REPLACEMENT (CA2606) - This bulletin provides information to replace the upper active air flap (“AAF”) duct assembly on certain 2026-2027MY Sportage (NQ5), Sportage Hybrid (NQ5 HEV), and Sportage Plug-In Hybrid (NQ5, PHEV) vehicles produced from May 15, 2025, through May 11, 2026, which may exhibit a MIL ON with DTCs P05A300 and/or P059F00 due to insufficient flap rigidity, resulting in reduced AAF performance.
TSB_ELE4222026-06-03. 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).
TSB_ELE4172026-05-01. 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.
TSB_ELE406_R12026-02-11. Service bulletin. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DCU OPERATIONSOFTWARE LOGIC IMPROVEMENT (SA635) - 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 improve the Data Connectivity Unit (DCU) performance on all 2026MYSportage and Sportage HEV/PHEV and 2025MY EV6 vehicles 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. and/or Connected routing not functioning properly.