Do Not Perform ECU Upgrade via Smart Diagnosis | KDS 2.0 – Customer Support | GIT America

▶ [Currently Applicable][Prohibition] Do NOT Perform ECU Upgrade via Smart Diagnosis | (KST) Oct 2, 2025

Basic Information
Subject	Do Not Perform ECU Upgrade 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 earlier, NVH-00-0091 and earlier, NWH-00-0091 and earlier
Regions Covered	Asia, Pacific, Europe, Middle East, Africa, Central & South America, and U.S. territories
Release Details
Date Issued	(KST) Oct 2, 2025
Posting Window	☑ Effective until further notice ☐ Permanent

Dear Customers,

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

✅ Current Workaround (Mandatory)

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

⛔ Prohibited

Accessing Smart Diagnosis to view or rely on the ECU Upgrade List when making upgrade decisions.
Initiating ECU Upgrade from 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 with instructions and applicable versions.

⚠️ Warning — ECU Upgrade Event Visibility & TSB Checklist

By default, ECU Upgrade events for which a vehicle is eligible appear 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 applicable TSB.
If you have confirmed, based on the TSB, that the vehicle is eligible, but the Diagnostic App (ECU Upgrade) does not display the specific event, possible causes include:
- An issue with GSW account permissions; or
- The Distributor has not released the TSB to dealers.
Contact your Distributor to confirm whether the TSB has been distributed or released.
If you have already performed an ECU Upgrade through Smart Diagnosis on a vehicle that was not eligible for the upgrade, stop all further operations and contact your regional NSC or the GIT Customer Service Center using Submit a Request for assistance.

We apologize for any inconvenience and appreciate your cooperation in following the procedure above to ensure proper ECU upgrade operations.

Quality Service Team GIT