Service bulletin TSB_ELE376

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)
Type	Service bulletin
NHTSA id	11017242
Published by NHTSA	2025-04-25
Manufacturer's number	TSB_ELE376
Manufacturer's date	2025-04-24
Campaign id or software version	SA609
NHTSA component	FORWARD COLLISION AVOIDANCE: WARNINGS; ELECTRICAL SYSTEM; AIR BAGS
Manufacturer's system	ELE

NHTSA's summary

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: ACU OPERATION LOGIC IMPROVEMENT (SA609) - This bulletin provides information to upgrade the Airbag Control Unit ‘ACU’ system software on certain 2025MY K5 (DL3) vehicles produced from February 20, 2024 to October 25, 2024. In rare cases when the driver restarts the vehicle within 1.5 seconds after turning the ignition ‘OFF’, the affected vehicles may exhibit the “ESC/Forward Collision Avoidance System” warning light(s) illuminating for up the three (3) minutes with DTC(s) C128387 and/or C164286 stored. During this time, Electronic Stability Control ‘ESC’, Forward Collision—Avoidance Assist ‘FCA’ and Lane Keeping Assist ‘LKA’ functions are inoperable

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

Air bags, Driver assistance, Electrical system

Trouble codes named

C1283, C1642

Vehicles listed
KIA K5	2025

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

Other bulletins for the same vehicles and component
TSB_ELE419	2026-06-18. Service bulletin. 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_R2	2026-06-18. Over-the-air update. 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_ELE422	2026-06-03. 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).
OTA_ELE413_NOTES_R1	2026-05-01. Over-the-air update. 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_ELE417	2026-05-01. 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_ELE413	2026-03-31. Service bulletin. 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.
OTA_ELE413	2026-03-31. Over-the-air update. RELEASE NOTES: OVER-THE-AIR: SOFWARE UPDATE FOR DATA CONNECTIVITY (ELE413) - This Over-the-Air (OTA) software update is designed to update the Data Connectivity Unit (DCU) logic of certain 2025 K5 and 2025 Sorento vehicles. This update is designed to improve the vehicle’s network communication performance. Additional information: This OTA will be rolled-out to all eligible K5 and Sorento vehicles with an active Kia Connect account.
PS797	2025-12-18. Other. PITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultrasonic sensors. The PDW system alerts the driver while parking, by calculating distance based on the difference in signal transmission and reception times between the vehicle (ultrasonic sensor) and an object. The membrane film of the ultrasonic sensor is used for object detention and can be damaged by stone chips or foreign substances while driving. Damage to the cover of the ultrasonic sensor can also lead to damage to the internal circuit. As a result of this external damage, the PDW system may not receive the proper signal from the ultrasonic sensor. In some cases, the system may cause a false alarm, no alert, or phantom warnings by a “Warning Lamp’ to be displayed on the cluster. The ultrasonic sensor membrane film should be always inspected for external damage and if any part replacement should be treated as a general repair, not as a warranty claim repair for this concern. (Please note that this Pitstop only applies to models/trims that are equipped with the ultrasonic sensors.)
OTA_SA630	2025-10-01. Over-the-air update. RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION: SOFTWARE UPDATE FOR TRANSMISSION CONTROL UNIT (SA630) - This Over-the-Air (OTA) software update is designed to update the Transmission Control Unit of certain 2025 K5 vehicles. This update is designed to improve the performance for smoother gear shifts.
OTA_SA609	2025-05-08. Over-the-air update. RELEASE NOTES: OVER-THE-AIR: SERVICE ACTION SOFTWARE UPDATE FOR ACU (SA609) - This Over-the-Air (OTA) software update is designed to update the Airbag Control Unit (ACU) logic of certain 2025 K5 vehicles. This update is designed to reduce the unintended display of warning lights.