Service bulletins for the 2022 Hyundai Sonata
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
97 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 25-01-010H TSB | 2025-02-17. Service campaign. FUEL/PROPULSION SYSTEM. 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. |
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| 25-FL-001H | 2025-01-13. Service bulletin. FUEL/PROPULSION SYSTEM. Some vehicles equipped with a 2.5L GDI Theta III engine (non-Turbo) may exhibit one or more misfire DTCs due to the GDI injectors leaking internally. This may be caused by internal filter breakage in the injector. Follow the procedure in this TSB to replace all 4 injectors on affected vehicles, using the kit in the Parts Information section. |
| 25-01-001H TSB | 2025-01-06. Service campaign. FUEL/PROPULSION SYSTEM. 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. |
| 25-01-001H DBP | 2025-01-06. Service campaign. FUEL/PROPULSION SYSTEM. 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. |
| 24-AT-001H-1 | 2024-12-21. Service bulletin. POWER TRAIN. This bulletin provides the procedure for updating the automatic transmission TCU (Transmission Control Unit) software to improve shift quality, judder and hesitation when accelerating. |
| 9B1 OL | 2024-12-13. Service campaign. ELECTRICAL SYSTEM. The subject vehicles may have Diagnostic Trouble Code (DTC) P0451 stored in the ECU, which could cause the Check Engine Lamp to come on. |
| 24-01-020H DBP | 2024-12-03. Service campaign. FUEL/PROPULSION SYSTEM. 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. |
| 24-01-020H TSB | 2024-12-03. Service campaign. FUEL/PROPULSION SYSTEM. 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. |
| 24-01-045H-2 | 2024-09-25. Service campaign. ELECTRICAL SYSTEM. A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system. |
| 24-01-045H-1 | 2024-09-07. Service campaign. ELECTRICAL SYSTEM. A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system. |
| 24-EM-001H | 2024-08-07. Service bulletin. ENGINE. 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. |
| 24-BE-001H-1 | 2024-08-07. Service bulletin. ELECTRICAL SYSTEM. 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. |
| 24-01-054H | 2024-08-07. Service campaign. ELECTRICAL SYSTEM. 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. |
| SERVICE CAMPAIGN 9B4 | 2024-08-07. Service bulletin. ELECTRICAL SYSTEM. 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. |
| 24-01-045H | 2024-07-01. Service bulletin. ELECTRICAL SYSTEM. A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system. |
| 24-AT-002H | 2024-04-16. Service bulletin. POWER TRAIN. 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. |
| 24-FL-002H | 2024-03-05. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING. 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. |
| 24-AT-001H | 2024-03-05. Service bulletin. POWER TRAIN. This bulletin provides the procedure for updating the automatic transmission TCU and ECU software (Santa Fe ONLY) to improve shift quality, judder with ISG enabled and hesitation when accelerating. |
| 24-BD-001H | 2024-03-05. Service bulletin. VISIBILITY; VISIBILITY/WIPER. 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. |
| 24-BE-001H | 2024-02-05. Service bulletin. ELECTRICAL SYSTEM. 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. |
| 23-01-093H | 2024-02-05. Service bulletin. ENGINE AND ENGINE COOLING. 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). |
| 23-EM-009H | 2023-12-22. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. 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. |
| 23-01-093H | 2023-12-22. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. 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). |
| 23-EM-005H | 2023-12-15. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services. |
| 23-AT-006H-2 | 2023-11-30. Service bulletin. POWER TRAIN. This TSB provides information to diagnose the push button shifter operation. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.