Hyundai Sonata Service Bulletins (2020)

126 manufacturer communications on file.

• February 11, 2025•Document ID: 11014286

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  25-01-010H DN

  Date Added:

  February 17, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Certain Elantra hybrid (CN7 HEV), Sonata hybrid (DN8 HEV), and Tucson hybrid (NX4 HEV) vehicles may exhibit a warning light due to DTC Code P1BB20 (12V Lithium Battery Cell Voltage High). Follow the procedure in TSB 25-01-010H (or latest version) to perform the update the Battery management System (BMS) software.

  Associated Products (8)

  2024 Hyundai Tucson2023 Hyundai Elantra2022 Hyundai Elantra2022 Hyundai Sonata2022 Hyundai Tucson2021 Hyundai Elantra2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11014286-0001.pdf↗
• February 11, 2025•Document ID: 11014285

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  25-01-010H TSB

  Date Added:

  February 17, 2025

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides the procedure to update the software for the Battery Management System (BMS) on certain Elantra Hybrid (CN7 HEV), Sonata Hybrid (DN8 HEV), and Tucson Hybrid (NX4 HEV) vehicles that may exhibit a warning light with DTC P1BB20.

  Associated Products (8)

  2024 Hyundai Tucson2023 Hyundai Elantra2022 Hyundai Elantra2022 Hyundai Sonata2022 Hyundai Tucson2021 Hyundai Elantra2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11014285-0001.pdf↗
• January 3, 2025•Document ID: 11012362

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  25-01-001H TSB

  Date Added:

  January 6, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Certain 2021-2023MY Sonata (DN8) and 2020-2022MY Sonata (DN8A) vehicles may have DTC P0451 stored in the ECU. Follow this bulletin to inspect the check valve, fuel pump cover and fuel tank, and update the ECU. If necessary, replace the check valve and/or fuel tank based on inspection results. The ECU Upgrade contains a revised DTC P14EE00 which supersedes P0451.

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11012362-0001.pdf↗
• January 3, 2025•Document ID: 11012361

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  25-01-001H DBP

  Date Added:

  January 6, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Certain 2021-2023MY Sonata (DN8) and 2020-2022MY Sonata (DN8A) vehicles may have Diagnostic Trouble Code (DTC) P0451 (also known as DTC P14EE00) stored in the Electronic Control Unit (ECU). The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11012361-0001.pdf↗
• December 10, 2024•Document ID: 11011830

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  9B1 OL

  Date Added:

  December 13, 2024

  Manufacturer:

  HYUNDAI

  Summary

  The subject vehicles may have Diagnostic Trouble Code (DTC) P0451 stored in the ECU, which could cause the Check Engine Lamp to come on.

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11011830-0001.pdf↗
• November 14, 2024•Document ID: 11010975

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  24-01-020H DBP

  Date Added:

  December 3, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Certain 2021-2023MY Sonata (DN8) and 2020-2022MY Sonata (DN8A) vehicles may have Diagnostic Trouble Code (DTC) P0451 stored in the Electronic Control Unit (ECU). The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11010975-0001.pdf↗
• November 14, 2024•Document ID: 11010974

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  24-01-020H TSB

  Date Added:

  December 3, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Certain 2021-2023MY Sonata (DN8) and 2020-2022MY Sonata (DN8A) vehicles may have DTC P0451 stored in the ECU. Follow this bulletin to inspect the check valve, fuel pump cover and fuel tank, and update the ECU. If necessary, replace the check valve and/or fuel tank based on inspection results.

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11010974-0001.pdf↗
• July 23, 2024•Document ID: 11006112

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  24-EM-001H

  Date Added:

  August 7, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Certain 20-22MY Sonata (DN8a), 21-23MY Santa Fe (TMa), and 22-23MY Tucson (NX4a) vehicles may experience a warning lamp illumination for a diagnostic trouble code P2181 that is related to the Integrated Thermal Management Module (ITM). Follow the service procedure outlined in this bulletin to replace the ITM.

  Associated Products (8)

  2023 Hyundai Santa Fe2023 Hyundai Tucson2022 Hyundai Santa Fe2022 Hyundai Sonata2022 Hyundai Tucson2021 Hyundai Santa Fe2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11006112-0001.pdf↗
• July 19, 2024•Document ID: 11006111

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-BE-001H-1

  Date Added:

  August 7, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or displays a message that reads “Uneven Road Ahead, Drive carefully” on the cluster along with a warning sound. Follow the procedure outlined in this bulletin to update the AVN software to resolve this condition.

  Associated Products (23)

  2023 Hyundai Elantra2023 Hyundai Ioniq 52023 Hyundai Kona2023 Hyundai Kona N2023 Hyundai Palisade2023 Hyundai Sonata2023 Hyundai Tucson2022 Hyundai Elantra2022 Hyundai Ioniq 52022 Hyundai Kona2022 Hyundai Kona N2022 Hyundai Palisade2022 Hyundai Sonata2022 Hyundai Tucson2022 Hyundai Veloster N2021 Hyundai Elantra2021 Hyundai Kona2021 Hyundai Palisade2021 Hyundai Sonata2021 Hyundai Veloster N+ 3 more
  Associated Documents

  • DownloadMC-11006111-0001.pdf↗
• July 9, 2024•Document ID: 11006056

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-01-054H

  Date Added:

  August 7, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Certain Elantra hybrid (CN7 HEV), Sonata hybrid (DN8 HEV), and Tucson hybrid (NX4 HEV) vehicles may exhibit a warning light due to DTC Code P1BB20 (12V Lithium Battery Cell Voltage High). Follow the procedure in TSB 24-01-054H (or latest version) to perform the update the Battery management System (BMS) software.

  Associated Products (6)

  2023 Hyundai Elantra2022 Hyundai Elantra2022 Hyundai Sonata2021 Hyundai Elantra2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11006056-0001.pdf↗
• July 4, 2024•Document ID: 11006055

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  SERVICE CAMPAIGN 9B4

  Date Added:

  August 7, 2024

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides the procedure to update the software for the Battery Management System (BMS) on certain Elantra Hybrid (CN7 HEV), Sonata Hybrid (DN8 HEV), and Tucson Hybrid (NX4 HEV) vehicles that may exhibit a warning light with DTC P1BB20.

  Associated Products (7)

  2023 Hyundai Elantra2022 Hyundai Elantra2022 Hyundai Sonata2022 Hyundai Tucson2021 Hyundai Elantra2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-11006055-0001.pdf↗
• April 9, 2024•Document ID: 10253275

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  24-AT-002H

  Date Added:

  April 16, 2024

  Manufacturer:

  HYUNDAI

  Summary

  This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC (transmission clutch slip in gear above limit) listed on Page 2.

  Associated Products (108)

  2024 Hyundai Kona2024 Hyundai Palisade2024 Hyundai Santa Cruz2024 Hyundai Sonata2024 Hyundai Tucson2023 Hyundai Palisade2023 Hyundai Santa Cruz2023 Hyundai Santa Fe2023 Hyundai Sonata2023 Hyundai Tucson2022 Hyundai Palisade2022 Hyundai Santa Cruz2022 Hyundai Santa Fe2022 Hyundai Sonata2022 Hyundai Tucson2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Sonata2021 Hyundai Tucson2021 Hyundai Veloster+ 88 more
  Associated Documents

  • DownloadMC-10253275-0001.pdf↗
• February 29, 2024•Document ID: 10251294

  Service Bulletin/Repair Instructions
  POWER TRAIN; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

  Mfr Comm. #:

  24-FL-002H

  Date Added:

  March 5, 2024

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission Control Module (TCM) for 2020-2023MY Sonata (DN8/DN8a) vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart after the ISG system has engaged and requires a manual restart due to the lack of intake manifold pressure recovery.

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-10251294-0001.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↗
• January 10, 2024•Document ID: 10249698

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  23-01-093H

  Date Added:

  February 5, 2024

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides the procedure to update the Hybrid Control Unit (HCU) and Dual Automatic Temperature Control (DATC) software to help improve coolant flow to the Exhaust Heat Recovery System (EHRS).

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-10249698-0001.pdf↗
• January 10, 2024•Document ID: 10249699

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-BE-001H

  Date Added:

  February 5, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or displays a message that reads “Uneven Road Ahead, Drive carefully” on the cluster along with a warning sound. Follow the procedure outlined in this bulletin to update the AVN software to resolve this condition.

  Associated Products (27)

  2026 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Ioniq 52023 Hyundai Kona2023 Hyundai Kona N2023 Hyundai Palisade2023 Hyundai Sonata2023 Hyundai Tucson2023 Hyundai Venue2022 Hyundai Elantra2022 Hyundai Ioniq 52022 Hyundai Kona2022 Hyundai Kona N2022 Hyundai Palisade2022 Hyundai Sonata2022 Hyundai Tucson2022 Hyundai Veloster N2022 Hyundai Venue2021 Hyundai Elantra2021 Hyundai Kona+ 7 more
  Associated Documents

  • DownloadMC-10249699-0001.pdf↗
• December 15, 2023•Document ID: 10247605

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; POWER TRAIN

  Mfr Comm. #:

  23-EM-009H

  Date Added:

  December 22, 2023

  Manufacturer:

  HYUNDAI

  Summary

  Certain 2020-2023MY Sonata Hybrid (DN8 HEV) vehicles may exhibit coolant leakage, engine overheating, and white smoke from the exhaust due to an internal leak at the Exhaust Heat Recovery System (EHRS) portion of the center muffler assembly. Follow the procedure outlined in this bulletin to repair this condition after confirming EHRS is leaking internally.

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-10247605-0001.pdf↗
• December 15, 2023•Document ID: 10247604

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-01-093H

  Date Added:

  December 22, 2023

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides the procedure to update the Hybrid Control Unit (HCU) and Dual Automatic Temperature Control (DATC) software to help improve coolant flow to the Exhaust Heat Recovery System (EHRS).

  Associated Products (4)

  2023 Hyundai Sonata2022 Hyundai Sonata2021 Hyundai Sonata2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-10247604-0001.pdf↗
• November 10, 2023•Document ID: 10245580

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  23-AT-006H-2

  Date Added:

  November 30, 2023

  Manufacturer:

  HYUNDAI

  Summary

  This TSB provides information to diagnose the push button shifter operation.

  Associated Products (15)

  2024 Hyundai Palisade2024 Hyundai Tucson2023 Hyundai Palisade2023 Hyundai Santa Fe2023 Hyundai Sonata2023 Hyundai Tucson2022 Hyundai Palisade2022 Hyundai Santa Fe2022 Hyundai Sonata2022 Hyundai Tucson2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Sonata2020 Hyundai Palisade2020 Hyundai Sonata
  Associated Documents

  • DownloadMC-10245580-0001.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↗