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Service bulletins for the 2026 Kia K5

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.

17 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
TSB_ELE4192026-06-18. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: BATTERY WIRING HARNESS COVERING INSPECTION / REPLACEMENT (SA645) - This bulletin provides information for inspecting the 12V battery wiring harness on certain 2025-2026 MY K5 (DL3) vehicles equipped with the Theta III 2.5L GDI engine, produced from February 20, 2024, through March 13, 2026. The subject vehicles may exhibit an illuminated Malfunction Indicator Lamp (MIL) along with a low engine oil warning light and/or battery warning light displayed on the instrument cluster, caused by abrasion of the wiring harness over time. One or more of the Diagnostic Trouble Codes (DTCs) listed on page 2 may be stored.
OTA_ELE413_NOTES_R22026-06-18. Over-the-air update. ELECTRICAL SYSTEM. RELEASE NOTES: OVER-THE-AIR: SOFTWARE UPDATE FOR DATA CONNECTIVITY (ELE413 Revision 2) - This Over-the-Air (OTA) software update is designed to update the Data Connectivity Unit (DCU) logic of certain 2025 - 2026MY Carnival, EV9, K5 and Sorento vehicles. This update is designed to improve the vehicle’s network communication performance.
TSB_ELE4222026-06-03. Service bulletin. ELECTRICAL SYSTEM. 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).
OTA_ELE413_NOTES_R12026-05-01. Over-the-air update. ELECTRICAL SYSTEM. RELEASE NOTES: OVER-THE-AIR: SOFTWARE UPDATE FOR DATA CONNECTIVITY (ELE413 Revision 1) - This Over-the-Air (OTA) software update is designed to update the Data Connectivity Unit (DCU) logic of certain 2025 - 2026MY Carnival, 2025 - 2026MY K5 and 2025 - 2026MY Sorento vehicles. This update is designed to improve the vehicle’s network communication performance.
TSB_ELE4172026-05-01. Service bulletin. ELECTRICAL SYSTEM. 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_ELE4132026-03-31. Service bulletin. ELECTRICAL SYSTEM. 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.
TSB_ELE3972025-09-11. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CCNC – DEALER MODE NETWORK RESET (SA625) - This bulletin provides information to access the ‘Dealer Mode’ function on 2026MY models listed on page 6 equipped with a Connected Car Navigation Cockpit (ccNC) head unit, and to perform a ‘Reset Network’ to address customer concerns related to activation of Kia Connect or Kia Connect features that may have stopped working.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.