Hyundai Ioniq Service Bulletins (2021)

34 manufacturer communications on file.

• October 27, 2026•Document ID: 11038798

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-GI-003H

  Date Added:

  October 30, 2026

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 2nd Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB.

  Associated Products (64)

  2026 Hyundai Ioniq 5 N2026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Ioniq 5 N2025 Hyundai Ioniq 62025 Hyundai Kona2025 Hyundai Palisade2025 Hyundai Santa Cruz2025 Hyundai Santa Fe2025 Hyundai Sonata2025 Hyundai Tucson2025 Hyundai Venue2024 Hyundai Elantra+ 44 more
  Associated Documents

  • DownloadMC-11038798-0001.pdf↗
• October 8, 2026•Document ID: 11038458

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  26-EM-016H TSB

  Date Added:

  October 14, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition. All internal combustion engines consume some engine oil during normal operation, depending on driving conditions and mileage, and this procedure should only be performed when deemed necessary based on inspection and diagnosis of the vehicle as outlined in TSB 26-EM-015H, Engine Oil Consumption – Inspection & Repair Guidelines, or the latest revision.

  Associated Products (174)

  2027 Hyundai Kona2027 Hyundai Santa Fe2026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Kona2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Kona2025 Hyundai Santa Fe2025 Hyundai Sonata2025 Hyundai Tucson2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Kona2024 Hyundai Santa Fe2024 Hyundai Sonata2024 Hyundai Tucson+ 154 more
  Associated Documents

  • DownloadMC-11038458-0001.pdf↗
• October 7, 2026•Document ID: 11038456

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  26-EM-015H TSB

  Date Added:

  October 13, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history. Hyundai recommends following the prescribed maintenance schedule and periodically checking the engine oil level using the dipstick to maintain proper engine oil level.

  Associated Products (252)

  2027 Hyundai Kona2027 Hyundai Palisade2027 Hyundai Santa Fe2026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Kona2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Kona2025 Hyundai Palisade2025 Hyundai Santa Cruz2025 Hyundai Santa Fe2025 Hyundai Sonata2025 Hyundai Tucson+ 232 more
  Associated Documents

  • DownloadMC-11038456-0001.pdf↗
• September 9, 2026•Document ID: 11037293

  Service Campaign
  ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  9C5 OL

  Date Added:

  September 11, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Hyundai has determined that certain Kona Electric and Ioniq Electric vehicles are eligible for a BMS software update. This update to the BMS software improves the system’s diagnostic capability.

  Associated Products (7)

  2023 Hyundai Kona2022 Hyundai Kona2021 Hyundai Ioniq2021 Hyundai Kona2020 Hyundai Ioniq2020 Hyundai Kona2019 Hyundai Kona
  Associated Documents

  • DownloadMC-11037293-0001.pdf↗
• August 17, 2026•Document ID: 11036686

  Service Campaign
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-01-065H DCS

  Date Added:

  September 2, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system's diagnostic capability. Follow Technical Service Bulletin (TSB) 26-01-065H to complete the BMS software update.

  Associated Products (7)

  2023 Hyundai Kona2022 Hyundai Kona2021 Hyundai Ioniq2021 Hyundai Kona2020 Hyundai Ioniq2020 Hyundai Kona2019 Hyundai Kona
  Associated Documents

  • DownloadMC-11036686-0001.pdf↗
• August 14, 2026•Document ID: 11036311

  Service Campaign
  ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  26-01-065H TSB

  Date Added:

  August 21, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability. Follow this bulletin to complete the BMS software update.

  Associated Products (8)

  2023 Hyundai Kona2022 Hyundai Kona2021 Hyundai Ioniq2021 Hyundai Kona2020 Hyundai Ioniq2020 Hyundai Kona2019 Hyundai Ioniq2019 Hyundai Kona
  Associated Documents

  • DownloadMC-11036311-0001.pdf↗
• August 13, 2026•Document ID: 11036685

  Service Campaign
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-01-065H DN

  Date Added:

  September 2, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability.

  Associated Products (7)

  2023 Hyundai Kona2022 Hyundai Kona2021 Hyundai Ioniq2021 Hyundai Kona2020 Hyundai Ioniq2020 Hyundai Kona2019 Hyundai Kona
  Associated Documents

  • DownloadMC-11036685-0001.pdf↗
• April 10, 2026•Document ID: 11032523

  Other
  AIR BAGS

  Mfr Comm. #:

  DTN DL

  Date Added:

  May 8, 2026

  Manufacturer:

  GENESIS

  Summary

  The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag replacement using non-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self-inspection by vehicle owners and recommends inspection by trained technicians.

  Associated Products (325)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Ioniq 52026 Hyundai Ioniq 5 N2026 Hyundai Ioniq 62026 Hyundai Ioniq 6 N2026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Nexo2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson+ 305 more
  Associated Documents

  • DownloadMC-11032523-0001.pdf↗
• April 10, 2026•Document ID: 11032522

  Other
  AIR BAGS

  Mfr Comm. #:

  DTN DCS

  Date Added:

  May 8, 2026

  Manufacturer:

  HYUNDAI

  Summary

  The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.

  Associated Products (325)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Ioniq 52026 Hyundai Ioniq 5 N2026 Hyundai Ioniq 62026 Hyundai Ioniq 6 N2026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Nexo2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson+ 305 more
  Associated Documents

  • DownloadMC-11032522-0001.pdf↗
• November 6, 2025•Document ID: 11025476

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  25-BD-012H TSB

  Date Added:

  November 12, 2025

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.

  Associated Products (327)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV702026 Genesis GV802026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2026 Hyundai Venue2025 Genesis G702025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV702025 Genesis GV802025 Hyundai Elantra+ 307 more
  Associated Documents

  • DownloadMC-11025476-0001.pdf↗
• September 30, 2025•Document ID: 11023692

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-BE-020H TSB

  Date Added:

  October 3, 2025

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system as described in this TSB.

  Associated Products (59)

  2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Ioniq 5 N2025 Hyundai Ioniq 62025 Hyundai Kona2025 Hyundai Palisade2025 Hyundai Santa Cruz2025 Hyundai Santa Fe2025 Hyundai Sonata2025 Hyundai Tucson2025 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Kona2024 Hyundai Palisade2024 Hyundai Santa Cruz2024 Hyundai Santa Fe2024 Hyundai Sonata+ 39 more
  Associated Documents

  • DownloadMC-11023692-0001.pdf↗
• September 23, 2025•Document ID: 11023408

  Service Campaign
  ENGINE

  Mfr Comm. #:

  25-01-063H TSB

  Date Added:

  October 1, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Certain IONIQ Electric (AE EV) and Kona Electric (OS EV) vehicles may exhibit a restricted coolant flow condition, which may be accompanied by a warning message (e.g., Coolant Supplement, Refill Inverter Coolant) in the cluster. No related DTCs are stored, and coolant level is normal in the reservoir tank. The coolant flow may be restricted by debris, causing abnormally high Electric Water Pump (EWP) speed. This TSB contains instructions for confirming high RPMs in the EWP, then using the Coolant Flushing Equipment Set to flush and clean debris from the various cooling system circuits. The coolant will be replaced with the updated Electric Vehicle Battery System Coolant (BSC-2) low-conductivity blue coolant.

  Associated Products (6)

  2022 Hyundai Kona2021 Hyundai Ioniq2021 Hyundai Kona2020 Hyundai Ioniq2020 Hyundai Kona2019 Hyundai Kona
  Associated Documents

  • DownloadMC-11023408-0001.pdf↗
• May 16, 2025•Document ID: 11018876

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-BE-002H TSB

  Date Added:

  June 3, 2025

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2024 2nd Navigation Map and Software Update Improvements section in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB. The NAU website is https://update.hyundai.com/US/EN/navigationUpdate. For certain models equipped with a relevant Bluelink package, the software may be downloaded and applied via OTA update.

  Associated Products (57)

  2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Ioniq 5 N2025 Hyundai Ioniq 62025 Hyundai Kona2025 Hyundai Palisade2025 Hyundai Santa Cruz2025 Hyundai Santa Fe2025 Hyundai Sonata2025 Hyundai Tucson2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Kona2024 Hyundai Palisade2024 Hyundai Santa Cruz2024 Hyundai Santa Fe2024 Hyundai Sonata2024 Hyundai Tucson+ 37 more
  Associated Documents

  • DownloadMC-11018876-0001.pdf↗
• May 8, 2025•Document ID: 11018575

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-024H-1 TSB

  Date Added:

  May 27, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.

  Associated Products (96)

  2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Ioniq 52025 Hyundai Ioniq 62025 Hyundai Nexo2025 Hyundai Palisade2025 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Santa Cruz2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 6+ 76 more
  Associated Documents

  • DownloadMC-11018575-0001.pdf↗
• April 7, 2025•Document ID: 11017111

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-024H EM

  Date Added:

  April 18, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's communication network. If you are experiencing issues with remote commands, or other Bluelink services, please see the instructions below to reestablish the connection via the AVN pinhole reset method.

  Associated Products (97)

  2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Ioniq 52025 Hyundai Ioniq 62025 Hyundai Nexo2025 Hyundai Palisade2025 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 6+ 77 more
  Associated Documents

  • DownloadMC-11017111-0001.pdf↗
• March 18, 2025•Document ID: 11015936

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-024H TSB

  Date Added:

  March 25, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.

  Associated Products (96)

  2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Ioniq 52025 Hyundai Ioniq 62025 Hyundai Nexo2025 Hyundai Palisade2025 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 6+ 76 more
  Associated Documents

  • DownloadMC-11015936-0001.pdf↗
• July 25, 2024•Document ID: 11006114

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  24-EV-005H

  Date Added:

  August 7, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Certain 2020-21MY IONIQ Electric (AE EV) vehicles may experience a condition of EV warning light ON with DTC P1AA600 – P1AB000. If any of the DTC’s listed below are found, the Battery System Assembly (BSA) will be replaced, and the Battery Management System (BMS) software may need to be updated.

  Associated Products (2)

  2021 Hyundai Ioniq2020 Hyundai Ioniq
  Associated Documents

  • DownloadMC-11006114-0001.pdf↗
• March 12, 2024•Document ID: 10252364

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-EV-001H

  Date Added:

  April 2, 2024

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides the procedure to update the ECU software on certain 2021-2022MY IONIQ Plug-in Hybrid (AE PHEV) vehicles that may exhibit a warning light with DTC U1341 due to communication issues with the Integrated Electronic Brake (IEB) during charging in IG3 mode. Follow the procedure in this TSB to update the ECU software logic. • DTC Info: U1341 - ECU-IEB Communication Delay

  Associated Products (2)

  2022 Hyundai Ioniq2021 Hyundai Ioniq
  Associated Documents

  • DownloadMC-10252364-0001.pdf↗
• February 14, 2024•Document ID: 10251285

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER; VISIBILITY

  Mfr Comm. #:

  24-BD-001H

  Date Added:

  March 5, 2024

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.

  Associated Products (266)

  2026 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Kona2024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Santa Cruz2024 Hyundai Santa Fe2024 Hyundai Sonata2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 62023 Hyundai Kona2023 Hyundai Kona N2023 Hyundai Nexo+ 246 more
  Associated Documents

  • DownloadMC-10251285-0001.pdf↗
• October 13, 2023•Document ID: 10247189

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  23-EM-005H

  Date Added:

  December 15, 2023

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.

  Associated Products (268)

  2026 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Kona2024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Santa Cruz2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 62023 Hyundai Kona2023 Hyundai Kona N2023 Hyundai Nexo2023 Hyundai Palisade2023 Hyundai Santa Cruz+ 248 more
  Associated Documents

  • DownloadMC-10247189-0001.pdf↗