2021 Hyundai Kona service bulletins & manufacturer communications

64 manufacturer communications are on file with NHTSA for the 2021 Hyundai Kona. 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 exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing a…
  26-EE-003H TSB · Technical service bulletin · Electrical System · 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 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
• A Class Action settlement regarding the TRW Airbag was recently decided. Based on the Class Action, customers are eligible for certain settlement benefits. Please see attached for …
  TRW Settlement DCS · Technical service bulletin · Air Bags · issued Dec 19, 2025
• A Class Action settlement regarding the TRW Airbag was recently decided. Based on the Class Action, customers are eligible for certain settlement benefits. Impacted vehicles are al…
  TRW Summary Notice · Technical service bulletin · Air Bags · issued Dec 19, 2025
• Hyundai has settled a class action lawsuit that alleges that certain Hyundai and Kia Class Vehicles (defined below) contain defective ZF-TRW airbag control units (“ZF-TRW ACUs”) th…
  TRW Settlement Notice · Technical service bulletin · Air Bags · issued Dec 19, 2025
• In response to this trend, we engineered a software upgrade that addresses the social media theft method and made it available to owners of eligible models free of charge at author…
  P33 OL · Technical service bulletin · Electrical System · issued Dec 19, 2025
• Upon customer's request ONLY, the Technical Service Bulletin (TSB) 25-01-089H provides the service procedure for installation of a key cylinder reinforcement protector assembly and…
  25-01-089H DCS · Technical service bulletin · Electrical System · issued Dec 15, 2025
• In addition to the Anti-Theft software provided under Service Campaign 993 (TSB 24-01-009H-1), a zinc reinforced ignition cylinder protector hardware upgrade is being made availabl…
  25-01-089H DN · Technical service bulletin · Electrical System · issued Dec 15, 2025
• This bulletin provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti-theft decals on the front windows.
  25-01-089H TSB · Technical service bulletin · Electrical System · issued Dec 15, 2025
• 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
• 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
• A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (ca…
  24-01-009H-1 · Service campaign · Electrical System · issued May 10, 2024
• A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (ca…
  24-01-009H-1 · Service campaign · Electrical System · issued May 9, 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
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  24-01-009H · Technical service bulletin · Electrical System · issued Feb 12, 2024
• This bulletin provides the service procedure to: 1) Upgrade the IBU/BCM (Integrated Body Control Unit/Body Control Module) to revise the OEM Hyundai burglar alarm system operation …
  24-01-009H · Technical service bulletin · Equipment · issued Feb 1, 2024
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  24-01-009H · Technical service bulletin · Electrical System · issued Feb 1, 2024
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Jan 22, 2024
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-thef…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Dec 19, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Nov 10, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-6 · Technical service bulletin · Electrical System · issued Nov 10, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-5 · Technical service bulletin · Electrical System · issued Oct 26, 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
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-5 · Technical service bulletin · Power Train · issued Aug 17, 2023
• Some models from service campaign 993 (IBU/BCM Software Update and Decals Application) equipped with the Hyundai OEM remote start system may exhibit the horn honking when remote st…
  23-BE-010H · Technical service bulletin · Electrical System · issued Aug 17, 2023
• This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundaiâ s Navigation Updates page. The current version of Google Maps has 1…
  23-BE-007H · Technical service bulletin · Electrical System · issued Jul 17, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response t…
  23-01-014H-5 · Technical service bulletin · Equipment · issued Jul 10, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-5 · Technical service bulletin · Electrical System · issued Jul 10, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-5 · Technical service bulletin · Electrical System · issued Jun 8, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-4 · Technical service bulletin · Electrical System · issued May 12, 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
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-4 · Technical service bulletin · Electrical System · issued Apr 13, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993) in response to an increase in thefts of certain Hyundai vehicles not equipped with engi…
  23-01-014H-4 · Technical service bulletin · Electrical System · issued Apr 13, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-3 · Technical service bulletin · Visibility · issued Apr 6, 2023
• Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993) in response to an increase in thefts of certain Hyundai vehicles not equipped with engi…
  23-01-014H-2 · Technical service bulletin · Electrical System · issued Mar 21, 2023
• Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Modu…
  23-01-014H-2 · Technical service bulletin · Electrical System · issued Mar 21, 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
• Certain 2018-2022MY Kona (OS) vehicles equipped with 2.0L engines and 4WD may exhibit transfer case oil leaks and/or an oil smell caused by the transfer case pinion oil seal overhe…
  23-01-007H · Technical service bulletin · Engine and Engine Cooling · issued Jan 26, 2023
• Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly…
  22-EM-010H · Technical service bulletin · Engine and Engine Cooling · issued Jul 28, 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 (listed below) equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diag…
  22-AT-007H · Technical service bulletin · Equipment · issued May 19, 2022
• Hyundai is conducting a service campaign 974 to enhance the knock sensor logic with the Cylinder Noise Diagnostic System (CNDS) software update. CNDS is to detect abnormal cylinder…
  22-EM-008H · Technical service bulletin · Engine and Engine Cooling · issued May 5, 2022
• Hyundai is conducting a service campaign to enhance the knock sensor logic with the Cylinder Noise Diagnostic System (CNDS) software update. CNDS is to detect abnormal cylinder wal…
  22-01-043H · Technical service bulletin · Equipment · issued May 5, 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 equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal shifting caused by an out of specification input shaft snap ring. This bulletin outlin…
  22-01-007H · Technical service bulletin · Equipment · issued Jan 12, 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 · Equipment · 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 the inspection procedure and repair guidelines for certain vehicles listed below.
  21-EM-003H · Technical service bulletin · Engine and Engine Cooling · issued Mar 10, 2021
• This bulletin provides a front brake pad backing plate grease application procedure to address squealing during braking.
  21-BR-001H · Technical service bulletin · Equipment · issued Mar 10, 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 · Wheels · issued Nov 19, 2020
• This bulletin provides information and procedures for collecting OBD â In Use Monitor Performance Ratioâ (IUMPR) data on certain 2019-2021MY vehicles at California dealers. This re…
  20-01-039H · Technical service bulletin · Electrical System · issued Oct 9, 2020
• 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…
  20-ST-003H-1 · Technical service bulletin · Steering · issued Sep 9, 2020
• This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components.
  20-ST-001H-2 · Technical service bulletin · Steering · issued Sep 9, 2020