Do Not Perform ECU Upgrades via Smart Diagnosis | KDS 2.0 – Customer Support | Europe & General

▶ [Currently Applicable][Prohibition] Do NOT Perform ECU Upgrades via Smart Diagnosis | (KST) 02-Oct-2025

Basic Information
Subject	Do Not Perform ECU Upgrades via Smart Diagnosis (Use the ECU Upgrade menu directly)
Article Type	☐ Issue Fix ☑ Usage Guide ☐ New Feature
Target Information
Affected Version	Menu: Smart Diagnosis > ECU Upgrade List (display logic) App Versions (and earlier): NEH-02-0091 and below, NVH-00-0091 and below, NWH-00-0091 and below
Regions Covered	Asia, the Pacific, Europe, the Middle East, Africa, Central & South America, and US territories
Release Details
Date Issued	(KST) 02-Oct-2025
Posting Window	☑ Effective until further notice ☐ Permanent

Dear Customers,

We have identified an error in the display logic of the ECU Upgrade List within Smart Diagnosis. Due to this issue, the list may display incorrect upgrade targets.
Therefore, do NOT perform ECU upgrades via Smart Diagnosis.

✅ Current Workaround (Mandatory)

Access ECU Upgrade directly:
Check upgrade eligibility in the ECU Upgrade menu, not in Smart Diagnosis.
Perform the applicable ECU Upgrade events in AUTO MODE or Manual Mode, as appropriate.

⛔ Prohibited

Accessing Smart Diagnosis to view or rely on the ECU Upgrade List when making upgrade decisions.
Initiating an ECU upgrade from within Smart Diagnosis.

🔧 Planned Improvement

We are working to improve the app logic so that the ECU Upgrade List displayed through Smart Diagnosis shows the correct upgrade targets.
Once the improvement has been completed and validated, we will issue an additional notice containing instructions and details of the applicable versions.

⚠️ Warning — ECU Upgrade Event Visibility & TSB Checklist

By default, ECU Upgrade events for which a vehicle is eligible are displayed in ECU Upgrade – AUTO MODE based on the vehicle model, VIN, engine (battery) type, and the target controller's ROM ID.
※ Some ECU Upgrade events are displayed only in Manual Mode. Carefully review the relevant TSB.
If you have confirmed, based on the TSB, that the vehicle is eligible but the Diagnostic App (ECU Upgrade) does not display the relevant event, possible causes include:
- An issue with the GSW account permissions; or
- The Distributor has not released the TSB to Dealers.
Contact your Distributor to confirm whether the TSB has been copied and released.
If you have already performed an ECU upgrade via Smart Diagnosis on a vehicle that is not eligible for the upgrade, stop all further operations and contact your regional NSC or the GIT Customer Service Center by selecting Submit a request for assistance.

We apologize for any inconvenience and appreciate your cooperation in following the procedure above to ensure that ECU upgrades are performed correctly.

Quality Service Team GIT