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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

Bulletins, newest first
ABOM110920212021-11-16. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - Today, November 9, 2021, American Honda is announcing a product improvement campaign (PIC) for certain 2018-2020 Accord and 2019-2020 Insight vehicles to update the telematics control unit (TCU) software for an upcoming network service change. Do an iN VIN status inquiry to determine which units in your inventory are affected.
A21-0852021-11-16. 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&103020212021-11-03. 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&102520219042021-11-03. Service bulletin. SERVICE BRAKES, HYDRAULIC. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accords, 2019-2017 Civics, 2017-2021 CR-Vs, 2018-2021 Odysseys & 2018-2021 Pilots with a customer complaint of an unexpected CMBS operation or a brake application. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
ABOM102820212021-11-03. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer Message - Please be advised that as of today, October 28, 2021, parts are available for the 2020 Accord model via open order under the following service bulletin: 21-076, Emissions Recall: 2020 Accord and Accord Hybrid Fuel Tank
A21-0782021-11-02. Service bulletin. ENGINE AND ENGINE COOLING. Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
A21-0762021-11-02. Service bulletin. FUEL SYSTEM, GASOLINE. Service Bulletin - During the manufacturing of certain fuel tanks, a protective layer was not properly applied. An improperly manufactured fuel tank may cause the release of air pollutants at levels that exceed state and federal standards.
A21-0202021-11-02. Service bulletin. FUEL SYSTEM, GASOLINE. Service Bulletin - Emissions Recall: 2020 Accord and Accord Hybrid Fuel Tank
A19-0442021-11-02. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE. Service Bulletin - The rear tray rattles when the audio unit bass is turned up.
ATI&102020219022021-10-28. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. 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.
A21100B2021-10-28. Service bulletin. SEATS; AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; AIR BAGS. 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.
A19-0442021-10-28. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE. Service Bulletin - The rear tray rattles when the audio unit bass is turned up.
ONL6VH101520212021-10-19. Service bulletin. FUEL SYSTEM, GASOLINE. Owner Notification Letter - During the manufacturing of certain fuel tanks on some 2020 Accord Hybrid vehicles, a protective layer was not properly applied. An improperly manufactured fuel tank my cause the release of evaporative emission air pollutants at levels that exceed state and federal standards.
ATI&101320212021-10-19. 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&100520219062021-10-16. Service bulletin. SERVICE BRAKES, HYDRAULIC. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accords, 2019-2017 Civics, 2017-2021 CR-Vs, 2018-2021 Odysseys & 2018-2021 Pilots with a customer complaint of an unexpected CMBS operation or a brake application. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
ATI&092720212021-10-06. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE. 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.
A21-0762021-09-22. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Service Bulletin - During the manufacturing of certain fuel tanks, a protective layer was not properly applied. An improperly manufactured fuel tank may cause the release of air pollutants at levels that exceed state and federal standards.
ATI&091020219092021-09-15. 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&091020219072021-09-15. Service bulletin. SERVICE BRAKES. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accords, 2019-2017 Civics, 2017-2021 CR-Vs, 2018-2021 Odysseys & 2018-2021 Pilots with a customer complaint of an unexpected CMBS operation or a brake application. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
ABOM090720212021-09-15. Service bulletin. FUEL SYSTEM, GASOLINE. Dealer Message - Please be advised that as of today, September 7, 2021, parts are available for the 2020 Accord Hybrid model via open order under the following service bulletin: 21-076, Emissions Recall: 2020 Accord Hybrid Fuel Tank
A21-0762021-09-15. Service bulletin. FUEL SYSTEM, GASOLINE. Service Bulletin - During the manufacturing of certain fuel tanks, a protective layer was not properly applied. An improperly manufactured fuel tank may cause the release of air pollutants at levels that exceed state and federal standards.
A21-0202021-09-15. Service bulletin. FUEL SYSTEM, GASOLINE. Service Bulletin - American Honda is announcing a STOP SALE and emissions recall for certain 2020 Accord vehicles for improperly manufactured fuel tanks that may cause the vehicle to release excessive evaporative emissions. During the manufacturing of certain fuel tanks, 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&082520219092021-09-02. 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&082520219072021-09-02. Service bulletin. SERVICE BRAKES, HYDRAULIC. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2021 Accords, 2019-2017 Civics, 2017-2021 CR-Vs, 2018-2021 Odysseys & 2018-2021 Pilots with a customer complaint of an unexpected CMBS operation or a brake application. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
A21080A2021-09-02. Service bulletin. FORWARD COLLISION AVOIDANCE. "ServiceNews Article - When returning the vehicle to the client, inform them that if the message Adaptive Cruise Control System Problem comes back on when the vehicle is driven in freezing conditions, it is likely because of snow or ice buildup on the radar. Advise the client of the following procedure to clean the front grille where the radar is located."

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.