Honda Accord Service Bulletins (2021)
136 manufacturer communications on file.
- August 21, 2026•Document ID: 11036326Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- A26-068
- Date Added:
- August 24, 2026
- Manufacturer:
- HONDA
SummaryService Bulletin - On certain 2018-2022 Accord and 2018-22 Accord Hybrid vehicles equipped with the Wireless CarPlay and Android Auto software upgrade, a programming issue within the Wireless CarPlay and Android Auto software may cause an invalid "License Authentication Error" message to appear on the display audio screen after approximately 1,500 ignition ON/OFF cycles.
Associated Products (2)Associated Documents - August 21, 2026•Document ID: 11036323OtherELECTRICAL SYSTEM
- Mfr Comm. #:
- AEBM08212026901
- Date Added:
- August 24, 2026
- Manufacturer:
- HONDA
SummaryDealer Message - Due to a software programming issue within the Wireless CarPlay and Android Auto system, an invalid "License Authentication Error" message may appear on the Display Audio screen after approximately 1,500 ignition switch activations ON/OFF.
Associated Products (2)Associated Documents - April 22, 2026•Document ID: 11031760Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- A23-094
- Date Added:
- April 30, 2026
- Manufacturer:
- HONDA
SummaryService Bulletin - There is a dull creaking, rubbing, popping, or clicking noise coming from the front of the vehicle while turning at low speeds potentially due to the bump stop contacting the top of the front damper body.
Associated Products (11)Associated Documents - December 19, 2025•Document ID: 11026975Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- ATS30025
- Date Added:
- January 5, 2026
- Manufacturer:
- HONDA
SummaryTech Line Summary - Customers who have purchased the Accessory CarPlay /Android Auto upgrade are complaining that a pop-up message appears on the audio unit display stating, “Please insert USB drive containing valid software license file, and press OK button”. When this message is displayed, the audio unit is not responsive to control inputs, however the rear-view camera remains fully functional.
Associated Products (2)Associated Documents - December 19, 2025•Document ID: 11026972OtherELECTRICAL SYSTEM
- Mfr Comm. #:
- APS&12192025902
- Date Added:
- January 5, 2026
- Manufacturer:
- HONDA
SummaryDealer Message - Some customers have reported a pop-up message on the audio unit display stating: “Please insert USB drive containing valid software license file and press OK button.” When this message appears, the audio unit becomes unresponsive. The rear-view camera remains functional.
Associated Products (2)Associated Documents - December 19, 2025•Document ID: 11026971OtherELECTRICAL SYSTEM
- Mfr Comm. #:
- AAR12192025901
- Date Added:
- January 5, 2026
- Manufacturer:
- HONDA
SummaryDealer Message - Some customers have reported a pop-up message on the audio unit display stating: “Please insert USB drive containing valid software license file and press OK button.” When this message appears, the audio unit becomes unresponsive. The rear-view camera remains functional.
Associated Products (2)Associated Documents - July 29, 2025•Document ID: 11021744Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A25-074
- Date Added:
- August 8, 2025
- Manufacturer:
- HONDA
SummaryService Bulletin - Oil leak at timing chain tensioner inspection cover due to possible insufficient sealant adhesion on inspection cover.
Associated Products (6)Associated Documents - February 28, 2025•Document ID: 11015016Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- A23-094
- Date Added:
- March 5, 2025
- Manufacturer:
- HONDA
SummaryService Bulletin - There is a dull creaking, rubbing, popping, or clicking noise coming from the front of the vehicle while turning at low speeds due to the bump stop contacting the top of the front damper body.
Associated Products (9)Associated Documents - December 3, 2024•Document ID: 11011792OtherENGINE
- Mfr Comm. #:
- ATI&12022024909
- Date Added:
- December 12, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2024 Accord 1.5Ls, 2021-2024 Civics 1.5Ls, 2023-2024 CR-Vs 1.5Ls, and 2017 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 [Catalyst System Efficiency Below Threshold] stored. To better understand the cause of this condition, AHM would like to specific parts from the vehicle prior to you attempting a repair of any kind.
Associated Products (10)Associated Documents - November 5, 2024•Document ID: 11010549OtherENGINE
- Mfr Comm. #:
- ATI&11052024902
- Date Added:
- November 14, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2024 Accord 1.5Ls, 2021-2024 Civics 1.5Ls, 2023-2024 CR-Vs 1.5Ls, and 2017 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 [Catalyst System Effciency Below Threshold] stored. To better understand the cause of this condition, AHM would like to specific parts from the vehicle prior to you attempting a repair of any kind.
Associated Products (10)Associated Documents - August 16, 2024•Document ID: 11006533OtherENGINE
- Mfr Comm. #:
- ATI&08152024902
- Date Added:
- August 20, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord 1.5Ls (no 2.0L) & FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. 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.
Associated Products (4)Associated Documents - July 26, 2024•Document ID: 11005519OtherENGINE
- Mfr Comm. #:
- ATI&07262024902
- Date Added:
- August 2, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accord 1.5Ls (no 2.0L) & FHEVs, as well as 2017-2022 CR-V 1.5Ls (no 2.4L), & 2020-2022 CR-V FHEVs with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected) stored. Customer may also experience engine running rough condition. 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.
Associated Products (4)Associated Documents - June 4, 2024•Document ID: 11001421OtherELECTRICAL SYSTEM
- Mfr Comm. #:
- ATI&06032024904
- Date Added:
- June 11, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accords with customer complaint of Charging System Problem (battery icon) or Auto Engine Idle Stop Problem Lamp coming on the Multi-Information Display (MID). To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
Associated Products (2)Associated Documents - May 31, 2024•Document ID: 11000712OtherENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- ATI&05312024901
- Date Added:
- June 3, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accords with customer complaint of Charging System Problem (battery icon) or Auto Engine Idle Stop Problem Lamp coming on the Multi-Information Display (MID). To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
Associated Products (2)Associated Documents - May 18, 2024•Document ID: 11000280OtherELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- ATI&05172024907
- Date Added:
- May 22, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accords with customer complaint of Charging System Problem (battery icon) or Auto Engine Idle Stop Problem Lamp coming on the Multi-Information Display (MID). To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
Associated Products (2)Associated Documents - May 3, 2024•Document ID: 11000130OtherELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- ATI&05032024903
- Date Added:
- May 15, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accords with customer complaint of Charging System Problem (battery icon) or Auto Engine Idle Stop Problem Lamp coming on the Multi-Information Display (MID). To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
Associated Products (2)Associated Documents - May 2, 2024•Document ID: 11000139Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- A23-026
- Date Added:
- May 15, 2024
- Manufacturer:
- HONDA
SummaryService Bulletin - During engine start in cold conditions, a miscalculation in the PCM causes the air-fuel ratio to exceed DTC rich criteria, resulting in the vehicle experiencing drivability concerns. This issue is most common in regions with cold weather.
Associated Products (2)Associated Documents - April 8, 2024•Document ID: 10253298Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- ATI&04082024904
- Date Added:
- April 17, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accords with customer complaint of Charging System Problem (battery icon) or Auto Engine Idle Stop Problem Lamp coming on the Multi-Information Display (MID). To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
Associated Products (2)Associated Documents - March 21, 2024•Document ID: 10252079Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- ATI&03212024907
- Date Added:
- March 26, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accords with customer complaint of Charging System Problem (battery icon) or Auto Engine Idle Stop Problem Lamp coming on the Multi-Information Display (MID). To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
Associated Products (2)Associated Documents - February 29, 2024•Document ID: 10251157Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING
- Mfr Comm. #:
- ATI&02292024903
- Date Added:
- March 4, 2024
- Manufacturer:
- HONDA
SummaryDealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2022 Accords with customer complaint of Charging System Problem (battery icon) or Auto Engine Idle Stop Problem Lamp coming on the Multi-Information Display (MID). To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to your attempting a repair of any kind.
Associated Products (2)Associated Documents