Recall 199 – Integrated Electronic Brake System Malfunction – 2019-2020 Hyundai Nexo Fuel Cell & 2019-2021 Kona Electric

December 1, 2020 NHTSA CAMPAIGN NUMBER: 20V748000

Integrated Electronic Brake System Malfunction

Reduced braking power could lengthen the distance required to stop the vehicle, increasing the risk of a crash.

 

NHTSA Campaign Number: 20V748

Manufacturer HyundaieBay logo Motor America

Components SERVICE BRAKES, HYDRAULIC

Potential Number of Units Affected 8,176

 

Summary

HyundaieBay logo Motor America (HyundaieBay logo) is recalling certain 2019-2020 Nexo Fuel Cell and 2019-2021 Kona Electric vehicles. The Integrated Electronic Brake (IEB) system may detect an abnormal sensor signal and as a result, may significantly reduce braking performance.

 

Remedy

HyundaieBay logo will notify owners, and dealers will update the IEB software, free of charge. The recall began January 25, 2021. Owners may contact HyundaieBay logo customer service at 1-855-371-9460. HyundaieBay logo’s number for this recall is 199.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Hyundai has a Recall

 


Description: Certain Kona EV (OS EV) and Nexo (FE) vehicles are equipped with an Integrated Electronic Brake (“IEB”) system that might illuminate the malfunction indicator lamp (“MIL”) and significantly reduce braking performance upon detection of DTC C240201. This bulletin describes the procedure to update the IEB system with revised software to improve braking performance if DTC C240201 is detected.

 

GDS Information:

EVENT #DESCRIPTION
648 (or later compatible event)*FE: “648.FE – IEB C240201 DTC IMPROVEMENT(ESC)”
649 (or later compatible event)*OS EV: “649.OS EV – IEB C240201 DTC IMPROVEMENT(ESC)”

 

SUBJECT:  RECALL 199 – DTC C240201 LOGIC IMPROVEMENT

 

* Use the latest event that appears in the ESC Auto Mode event list for the particular vehicle

 

ROM ID Table:

ModelSystemIEB P/NROM ID
OLDNEW
Nexo (FE)ESC (IEB)58520-M50001.00

1.01

1.02

1.03

1.04

1.05

2.06

2.07

2.08

3.09

3.10

3.11

3.12
Kona EV (OS)58520-K40001.00

1.01

1.02

1.03

1.04

1.05

2.06

2.07

2.09

2.10

2.00

2.12

 

 

Manual Mode Password Information Table:

EVENT # MENU PASSWORD
648 – FEFE ESC 58520-M50005000
649 – OS EVOS EV ESC 58520-K40004000

 

Service Procedure:

NOTICE

This Service Procedure is performed using GDS-mobile. For update information and general  precautions, please refer to TSB #15-GI-001.   

Manual mode should only be performed when the Auto update fails.

  

If the auto update fails, turn the ignition OFF for 10 seconds, then back ON again to reset  the control unit before performing the manual update.

 

  1. Select ECU Upgrade.

 

  1. Select ABS/ESC as the system to update.

 

  1. Check the current version of the ABS/ESC ROM ID and compare it to the ROM ID Information Table listed above before attempting to update the ABS/ESC system.

 

  1. Perform GDS software update. Refer to TSB 15-GI-001 for the tablet-based Mobile GDS ECU update procedures.

 

  1. After the software has updated, check for Diagnostic Trouble Codes in the ALL menus and erase any DTCs.

 


 


5 Affected Products

Vehicles

MAKEMODELYEAR
HYUNDAIeBay logoKONA ELECTRIC2019-2021
HYUNDAIeBay logoNEXO2019-2020

 


6 Associated Documents

Recall Quarterly Report #2, 2021-2

RCLQRT-20V748-2005.PDF 211.247KB

 


ISSUED Owner Notification Letter(Part 577)

RCONL-20V748-4378.pdf 335.341KB

 


Defect Notice 573 Report

RCLRPT-20V748-6218.PDF 214.178KB

 


Recall Acknowledgement

RCAK-20V748-3389.pdf 244.837KB

 


Remedy Instructions and TSB

RCRIT-20V748-8296.pdf 78.936KB

 


Recall Quarterly Report #1, 2021-1

RCLQRT-20V748-5792.PDF 211.143KB

 


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=20V748&docType=RCL

 


 

Hyundai Reprogramming

J2534 Diagnostic & Reprogramming - Hyundai

 

J2534 Reprogramming Software:

The HyundaieBay logo Motor America (HMA) J2534 reprogramming software allows for a common method of communication between aPC and a vehicle electronic control unit (ECU). U.S. EPA and CARB regulations mandate that all 2004 and later vehicle powertrain ECUs support emission-related reprogramming.

 

Vehicle Communication Interfaces (VCI)

The HyundaieBay logo J2534 Reprogramming and Diagnostic Tool software supports a SAE J2534-1/2 compliant passthru VCI device for use on HyundaieBay logo vehicles sold in the US. The devices, firmware, and application programming interfaces listed below have been tested by HMA and under no circumstances do we recommend the use of a non-approved J2534 device. HMA has worked closely with the following J2534 device manufacturers to ensure the hardware and software comply with all J2534-1/2 specifications.

 

https://www.hyundaitechinfo.com/external/j2534_diagnostics_and_programming.aspx

 

www.hyundaitechinfo.com

 


 

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Last update on 2026-05-27 / Affiliate links / Images from Amazon Product Advertising API


 

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