2021 Hyundai Kona Electric service bulletins & manufacturer communications

38 manufacturer communications are on file with NHTSA for the 2021 Hyundai Kona Electric. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.

• Certain 2021-2023 model year Kona, 2021-2023 model year Kona Electric, and 2022-2023 model year Kona N vehicles may experience an inoperable horn that may be caused by foreign subs…
  Z07 OL · Warranty extension · Unknown OR Other · issued May 16, 2026
• Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replac…
  26-BE-010H DN · Warranty extension · Unknown OR Other · issued Apr 18, 2026
• Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replac…
  26-BE-010H TSB · Warranty extension · Unknown OR Other · issued Apr 18, 2026
• The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province De…
  DTN DL · Technical service bulletin · Air Bags · issued Apr 10, 2026
• The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin …
  DTN DCS · Technical service bulletin · Air Bags · issued Apr 10, 2026
• 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 …
  25-BD-012H TSB · Technical service bulletin · Exterior Lighting · issued Nov 6, 2025
• 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 …
  25-BE-020H TSB · Technical service bulletin · Electrical System · issued Sep 30, 2025
• 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 Supp…
  25-01-063H TSB · Service campaign · Engine · issued Sep 23, 2025
• 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 …
  25-BE-002H TSB · Technical service bulletin · Electrical System · issued May 16, 2025
• 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 comm…
  25-01-024H-1 TSB · Service campaign · Electrical System · issued May 8, 2025
• 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 comm…
  25-01-024H EM · Service campaign · Electrical System · issued Apr 7, 2025
• 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 comm…
  25-01-024H TSB · Service campaign · Electrical System · issued Mar 18, 2025
• 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…
  24-BE-001H-1 · Technical service bulletin · Electrical System · issued Jul 19, 2024
• 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…
  24-BD-001H · Technical service bulletin · Visibility · issued Feb 14, 2024
• 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…
  24-BE-001H · Technical service bulletin · Electrical System · issued Jan 10, 2024
• Certain 19-23MY Kona Electric (OS EV) vehicles may experience a condition of EV warning light ON with DTC P1AA6 to P1AAF found stored. The Battery Management System (BMS) software …
  23-01-073H-1 · Technical service bulletin · Power Train · issued Oct 17, 2023
• Certain 19-23MY Kona Electric (OS EV) vehicles may experience a condition of EV warning light ON with Diagnostic Trouble Code (DTC) P1AA6 to P1AAF found stored. The Battery Managem…
  23-01-073H-1 · Technical service bulletin · Power Train · issued Oct 17, 2023
• This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
  23-EM-005H · Technical service bulletin · Engine and Engine Cooling · issued Oct 13, 2023
• Certain 19-23MY Kona Electric (OS EV) vehicles may experience a condition of EV warning light ON with Diagnostic Trouble Code (DTC) P1AA6 to P1AAF found stored. The Battery Managem…
  23-01-073H · Technical service bulletin · Power Train · issued Aug 29, 2023
• Certain 19-23MY Kona Electric (OS EV) vehicles may experience a condition of EV warning light ON with DTC P1AA6 to P1AAF found stored. The Battery Management System (BMS) software …
  23-01-073H · Technical service bulletin · Power Train · issued Aug 29, 2023
• This bulletin provides instructions to correct a condition with BSC-1 blue coolant flow restriction by debris causing abnormal high EWP (electric water pump) speed in certain 2020-…
  23-01-049H · Technical service bulletin · Power Train · issued Jun 8, 2023
• Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain…
  23-BD-007H · Technical service bulletin · Structure · issued Apr 24, 2023
• 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 …
  23-BD-002H · Technical service bulletin · Visibility · issued Jan 30, 2023
• This bulletin outlines the necessary inspection and repair procedures for certain 2019-2021MY Kona EV (OS EV) vehicles, exhibiting abnormal rumbling noise from the electric tractio…
  22-EV-001H-1 · Technical service bulletin · Power Train · issued Oct 21, 2022
• Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards w…
  22-GI-006H · Technical service bulletin · Tires · issued Jul 14, 2022
• Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulle…
  218/231 amend · Technical service bulletin · Steering · issued Jun 3, 2022
• Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulle…
  22-ST-005H · Technical service bulletin · Steering · issued Apr 8, 2022
• Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulle…
  22-ST-005H · Technical service bulletin · Steering · issued Apr 8, 2022
• Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulle…
  21-ST-003H · Technical service bulletin · Steering · issued Oct 1, 2021
• This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance T…
  21-EM-004H · Technical service bulletin · Engine and Engine Cooling · issued Mar 30, 2021
• This bulletin provides best practice recommendations when performing brake service procedures.
  21-BR-002H · Technical service bulletin · Equipment · issued Mar 23, 2021
• This bulletin provides information related to the VCULDC(Vehicle Control Unit & Low DCDC Converter) software update for KONA Electric(OS EV) vehicles. This update is also part of t…
  21-01-019H · Technical service bulletin · Equipment · issued Mar 17, 2021
• This Service Information bulletin provides the instructions on how to adjust the maximum EV battery charging threshold in the radio head unit.
  21-EE-001H · Technical service bulletin · Equipment Adaptive/mobility · issued Mar 16, 2021
• This Service Information bulletin provides the instructions on how to adjust the maximum EV battery charging threshold in the radio head unit.
  21-EE-001H · Technical service bulletin · Electrical System · issued Mar 16, 2021
• This bulletin provides information related to inspection of KONA Electric (OS EV) vehicles and to perform a BMS (Battery Management System) software update to latest revised level.
  21-01-008H · Technical service bulletin · Electrical System · issued Feb 8, 2021
• When using Wireless CarPlay, the system may intermittently auto disconnect. When Wireless CarPlay is disconnected, a pop up message â Phone Not Responding. Please reconnect it and …
  20-BE-014H · Technical service bulletin · Electrical System · issued Dec 21, 2020
• This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.
  20-BR-002H · Technical service bulletin · Service Brakes · issued Nov 30, 2020
• This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the â Tire Balance Data Sheetâ…
  20-SS-004H · Technical service bulletin · Tires · issued Nov 19, 2020