2025 Hyundai Ioniq 5 N EBD Software Update

Hyundai has released Service Campaign 24-01-064H, also known as Service Campaign 9B7, to update the Integrated Electronic Booster (IEB) software in certain 2025 Hyundai Ioniq 5 N (NE N) vehicles. This 2025 Hyundai Ioniq 5 N EBD software update is crucial for ensuring the proper operation of the Electronic Brake Force Distribution (EBD) system and accurate warning lamp displays.

Important Warnings for Owners and Dealers

Hyundai emphasizes several critical points regarding this service campaign 24-01-064H:

• Dealers are required to perform this service campaign on all affected vehicles prior to customer retail delivery and whenever an affected vehicle is in the shop for any maintenance or repair.
• To avoid any potential damage to IONIQ vehicles, this service campaign can only be performed at IONIQ certified dealers.
• This software update is subject to an OTA (Over-the-Air) option and may also be completed by customers with active Blue Link subscriptions.
• If the ECU update starts but then fails in Auto Mode, perform the update in Manual Mode to recover.
• If voltage is below 12 Volts per the GDS warning, then select "Back" and attach a battery charger to ensure an adequate battery charge for reliable update results. Turn ignition back "ON", and then retry the ECU update again.
• Technicians must check the current ROM ID version and compare it to the ROM ID Information table before attempting to perform the software update.
• If the upgrade fails, please remove the power connector or the battery (-) connector from the indoor fuse box for at least 5 seconds and reassemble to retry the upgrade.

Symptoms of the EBD Software Issue

Owners of affected 2025 Hyundai Ioniq 5 N vehicles might experience an issue where the Integrated Electronic Booster (IEB) software logic incorrectly disables the Electronic Brake Force Distribution (EBD) system. This occurs when there is a malfunction detected with the steering angle, yaw sensor, or lateral acceleration sensor.

When this happens, the instrument cluster will illuminate the "ESC warning lamp". Critically, the "ABS" and "BRAKE" warning lamps, which should typically activate for EBD malfunctions, will not illuminate. The 2025 Hyundai Ioniq 5 N EBD software update aims to correct this behavior, ensuring the correct warning lamps are displayed.

Fault Codes and Event Identifiers

The GDS (Global Diagnostic System) identifies this condition with the following event:

System	Event #	Description
ABS/ESC	1114	NE N IMPROVEMENT OF EBD NON-OPERATION ISSUES DUE TO NE N IEB S/W ERRORS

Repair Procedure Summary

The repair for this 2025 Hyundai Ioniq 5 N EBD software update involves updating the Integrated Electronic Booster (IEB) software using the GDS system. The general procedure is as follows:

1. Initial Setup: Access the "Vehicle Information" screen via WebDCS to confirm open campaigns.
2. GDS ECU Update: Perform the ECU update in "Auto Mode". Technicians should use the ID Check function to verify the ROM ID before proceeding. Refer to TSB 24-GI-012H, "ECU Update Procedure for Tablet-Based GDS-Smart", for detailed instructions.
3. System Selection: Select the ABS/ECU system to scan the vehicle's current ROM ID and compare it to the ROM ID Information table.
4. Battery Voltage Check: Ensure the vehicle battery voltage is above 12 Volts. If not, a battery charger must be connected.
5. Ignition Cycle: After the ECU update shows 100% complete, cycle the ignition "OFF" for at least 10 seconds (up to 30 seconds for some models) to reset the control unit. Use the "Refresh" button to reset the timer.
6. OTA Initialization: After clicking "OK", the OTA Initialization process will begin. If it performs automatically, proceed. If it fails, connect GDS-Smart to S/W Management → Central Communication Unit (CCNF) → OTA Initialization and follow on-screen instructions.
7. Documentation: Take a screenshot of the "ECU Update Complete" screen and upload it to STUI.
8. Fault Code Management: Perform Fault Code Searching and erase any DTC history that may have occurred during the ECU update process.
9. Final Check: Disconnect the power connector (A) of the indoor fuse box, wait at least 5 seconds, then reconnect it. Alternatively, disconnect the negative 12V battery terminal for 5 seconds and reconnect it. Place the vehicle in "Ready" mode to confirm proper operation.

Required Parts and Software Versions

This service campaign involves a software update for the Integrated Electronic Booster (IEB) control unit. The ECU Part Number for the IEB is 58520-N1000. The update brings the ROM ID from older versions (1.00, 1.01, 1.02) to the new version 1.04.

Warranty Information

For this service campaign 24-01-064H, dealers should submit claims on the Claim Entry Screen as "Campaign" type. The specific warranty details are:

• Model: IONIQ 5 N (NE N)
• Op. Code: 40D099R0
• Operation: Integrated Electronic Booster (IEB) Software Update
• Op. Time: 0.3 M/H
• Casual Part: 58520-N1000
• Nature Code: I14
• Cause Code: ZZ3

If a part requires replacement during this campaign and is still under warranty, a separate claim should be submitted. For out-of-warranty parts, a Prior Approval request for goodwill consideration is required.

NHTSA ID: 10255554