2026 Kia Sportage PDW Logic Improvement TSB SA629

Kia has released Technical Service Bulletin (TSB) 400, identified as Service Action SA629, to address an issue affecting the Parking Detection Warning (PDW) system in certain 2026 Kia Sportage and Sportage P/HEV vehicles. This bulletin, dated September 2025, outlines a software upgrade designed to improve the reliability of the PDW feature. It's important to note that Service Action SA629 has been superseded by SC350.

This service action, focusing on Kia Sportage PDW logic improvement, aims to ensure consistent and stable operation of the parking assistance system, which relies on effective communication between the Body Domain Controller (BDC) and other integrated circuits.

Important Warnings for Owners

Kia emphasizes that Service Action SA629 (superseded by SC350) is a repair program performed without direct customer notification during the warranty period. This means owners will not receive a letter or direct communication about this specific service action. Owners must proactively check their vehicle's status.

Furthermore, any Kia dealer requesting to perform this repair outside the warranty period will require specific approval from DPSM (Dealer Parts and Service Management). Owners should be aware of this policy when seeking service for the Kia Sportage PDW logic improvement.

Symptoms

Owners of affected 2026 Kia Sportage and Sportage P/HEV vehicles may experience intermittent normal operation of the Parking Detection Warning (PDW) feature. This means the system responsible for detecting obstacles during parking maneuvers might not function reliably or consistently when needed, potentially leading to reduced awareness of surroundings.

Diagnosis / Trigger Conditions

The root cause of the intermittent PDW operation is identified as unstable communication between the Body Domain Controller (BDC) and peripheral Integrated Circuits (IC). This communication instability can lead to disruptions in the PDW system's functionality. The service action aims to improve signal integrity, thereby reducing the likelihood of these communication disruptions.

Repair Procedure Summary

The repair involves upgrading the Body Domain Controller (BDC) system's software. This software update is designed to enhance the logic and stability of the PDW system by improving the communication between the BDC and its integrated circuits. The upgrade process is performed by a Kia technician using specialized diagnostic tools to ensure proper installation and functionality.

Required Tools or Parts

Kia technicians will utilize the Diagnostic System (KDS) tablet and a Vehicle Communication Interface (VCI) to perform the BDC system upgrade. These tools are essential for accessing the vehicle's control units and flashing the new software.

Owner Action

If you own a 2026 Kia Sportage or Sportage P/HEV and are experiencing issues with your Parking Detection Warning system, or simply wish to confirm if your vehicle is covered by this service action, you should contact your authorized Kia dealer. You can also check the repair status for your vehicle's VIN on KDealer+ by navigating to 'Service → Warranty Coverage → Warranty Coverage Inquiry → Campaign Information'. This will show if Service Action SA629 (superseded by SC350) or the newer SC350 applies to your vehicle. This proactive check is crucial given that Kia is not directly notifying consumers about this particular Kia Sportage PDW logic improvement.

NHTSA ID: 11024353