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Over-the-air update OTA_SA635

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 id11027674
Published by NHTSA2026-01-16
Manufacturer's numberOTA_SA635
Manufacturer's date2026-01-15
Campaign id or software versionSA635
NHTSA componentELECTRICAL SYSTEM
Manufacturer's systemOTA

NHTSA's summary

RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION SOFTWARE UPDATE FOR DATA CONNECTIVITY UNIT (SA635) - This Over-the-Air (OTA) software update is designed to update the Data Connectivity Unit (DCU) logic of certain 2026 Sportage vehicles. This update is designed to improve the operation logic of the Data Connectivity Unit (DCU) for remote connectivity.

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 SPORTAGE2026

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
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.
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.
OTA_SA635_R12026-03-03. Over-the-air update. 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.
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.
TSB_ELE4062025-12-24. Service bulletin. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DCU OPERATION SOFTWARE LOGIC IMPROVEMENT (SA635) - This bulletin provides information to improve the Data Connectivity Unit (DCU) performance on certain 2026MYSportage and 2025MY EV6 vehicles equipped with Kia Connect Services. The affected vehicles may encounter Remote Start/ Remote Climate Control function not working, Vehicle Status on the Kia Access App not updating, Connected navigation/routing not functioning properly.
TSB_ELE4082025-12-23. Service bulletin. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DCU REPLACEMENT (SA638) - This bulletin provides information to replace faulty Data Connectivity Units (DCUs) on certain 2026MY Sportage and 2025MY EV6 vehicles that may cause modem data to be missing on the Connected Car Navigation Cockpit (ccNC) head unit, resulting in Kia Connect failing to activate.
TSB_ELE400_CLSD2025-10-17. Service bulletin. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: PDW OPERATION LOGIC IMPROVEMENT (SA629) - This bulletin provides instructions for upgrading the Body Domain Controller (BDC) system on select 2026MY Sportage (NQ5a) and Sportage P/HEV (NQ5 P/HEV) vehicles, as listed in the table below. In some cases, intermittent normal operation of the Parking Detection Warning (PDW) feature may occur due to unstable communication between the BDC and peripheral Integrated Circuits (IC). The upgrade addresses this issue by improving signal integrity and reducing the likelihood of communication disruptions.
SC350_TSB2025-10-17. Service bulletin. TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN PDW OPERATION LOGIC IMPROVEMENT (SC350) - This bulletin SC350, superseded the previously released TSB ELE400/SA629. This bulletin provides instructions for upgrading the Body Domain Controller (BDC) system on select 2026MY Sportage (NQ5a) and Sportage P/HEV (NQ5 P/HEV) vehicles listed in the table below. Due to a communication fault within the Body Domain Controller (BDC) in the subject vehicles, the Parking Distance Warning (PDW) system may operate intermittently. As a result, the PDW system may not trigger warning sounds or display visual warning indications to nearby objects when the vehicle is stopped or driven at low speeds. The upgrade addresses this issue by improving signal integrity and reducing the likelihood of communication disruptions.