Service bulletins for the 2020 Honda Accord
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.
294 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| ATI&02282022 | 2022-03-02. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
|---|---|
| ATI&02112022903 | 2022-02-15. Service bulletin. VISIBILITY; VISIBILITY/WIPER. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accords with a customer complaint of the windshield wiper inop due to detached linkage. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&02112022902 | 2022-02-15. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| ATI&02082022 | 2022-02-15. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE; ENGINE AND ENGINE COOLING. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts & CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| ATI&01252022 | 2022-02-04. Service bulletin. VISIBILITY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accords with a customer complaint of the windshield wiper inop due to detached linkage. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| A21100B | 2022-02-04. Service bulletin. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT. ServiceNews Article - There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored. If you can duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component. In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting a faulty seat weight sensor. |
| ATI&01222022 | 2022-01-25. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts & CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| ATI&01122022 | 2022-01-19. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&01102022 | 2022-01-19. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&01072022 | 2022-01-12. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&01062022 | 2022-01-12. Service bulletin. VISIBILITY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accords with a customer complaint of the windshield wiper inop due to detached linkage. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&01052022 | 2022-01-12. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&01032022905 | 2022-01-11. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts & CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| A21100B | 2022-01-11. Service bulletin. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; SEATS. ServiceNews Article - There are several possible causes for the SRS DTC U3000-49 (Internal Failure of the SRS Unit) to be stored. If you can duplicate the DTC, the troubleshooting will take you through the step-by-step process in isolating the faulty component. In most situations, the SRS Unit should be last on the list of components to replace. Here is a quick tip for troubleshooting a faulty seat weight sensor. |
| A21-085 | 2022-01-04. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - In February of 2022, the 3G network will no longer support the in-vehicle services that the vehicle has previously supported. The Telematics Control Unit (TCU) using the Over the Air (OTA) update is required to connect to the VoLTE network to continue communications. |
| ATI&12172021 | 2021-12-22. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&12152021904 | 2021-12-22. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&12132021 | 2021-12-22. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&12082021 | 2021-12-15. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L LXs and Sports with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ONL6GB12022021 | 2021-12-09. Service bulletin. ELECTRICAL SYSTEM. Owner Notification Letter - On February of 2022, the 3G network will no longer support the in-vehicle services that previously were supported for your vehicle. The Telematics Control Unit (TCU) in your vehicle must be updated using the Over the Air (OTA) update to connect to the VoLTE network to continue communications. Honda strongly recommends updating your vehicle as soon as possible. After February 2022, restoring services, will require a customer pay TCU replacement performed by a service technician at an authorized dealer. |
| ATI&12022021 | 2021-12-09. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L LXs and Sports with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ONL6VH11232021 | 2021-12-03. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:CANISTER. Owner Notification Letter - During the manufacturing of certain fuel tanks on some 2020 Accord vehicles, a protective layer was not properly applied. An improperly manufactured fuel tank may cause the release of evaporative emission air pollutants at levels that exceed state and federal standards. |
| ATI&11292021905 | 2021-12-03. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts & CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| ATI&11292021901 | 2021-12-03. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2020 Accord 1.5L LXs and Sports with a customer complaint of a noise coming from the ANC (Active Noise Cancellation Unit). The noise can be described as booming, droning, or humming. To better understand the cause of this condition, AHM would like to inspect the vehicle before you attempt a repair of any kind. |
| ATI&11162021904 | 2021-11-24. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accord 1.5Ts & CR-Vs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) or P0172 (Fuel System Too Rich) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.