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Service bulletins for the 2020 Honda Odyssey

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.

197 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
ATS2002012020-03-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Tech Line Summary Article - There was a provisional procedure provided to all field engineers to attempt the repair of certain customers' vehicles that might have experienced issues related to the MOST connectors, resulting in the audio system shutting down and the speakers making popping noises.
APaS012720209052020-02-05. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
A19070E2020-02-04. Service bulletin. ELECTRICAL SYSTEM. "ServiceNews Article - Are you having this issue while using Apple CarPlay? -It beeps and stops working. -If you try to switch to a different audio source, you see the message XM-Check Tuner or FM-Radio Unavailable. -When you turn the ignition to OFF, the Display Audio stays on."
APaS012420202020-01-29. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - Popping or Crackling noise from the speakers is a current market issue that affects 2018-2020 Odysseys, 2019-2020 Passports, and 2019-2020 Pilots. We are actively investigating this issue. Until a complete countermeasure is available, we would like to make you aware of a Honda Service News dated December 2019, "Popping or Crackling from the Speakers? Check MOST Bus Network." This Service News shows some examples of problem areas found during repairs and offers suggestions for how to isolate the source of the noise.
APaS010720209042020-01-14. Service bulletin. VEHICLE SPEED CONTROL. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
APP010320202020-01-09. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - The January episode of Tech2Tech is now posted. We've got some valuable information for you, so check it out! This month we're featuring "Check Out the MOST Bus Network Failure Log!"
AAMV2001012020-01-09. Service bulletin. ELECTRICAL SYSTEM. Video Message - It concerns the MOST Bus Network Failure Log covered in service bulletin 19-097. The log helps troubleshoot intermittent MOST bus network failures. These are failures with symptoms that can range from complete signal loss and a blank screen to popping from the speakers. Failures are identified as one of these two possible types 1) sudden signal off and 2) critical unlock. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
AAMV2001022020-01-09. Service bulletin. ELECTRICAL SYSTEM. Video Message - It concerns the MOST Bus Network Failure Log covered in service bulletin 19-097. The log helps troubleshoot intermittent MOST bus network failures. These are failures with symptoms that can range from complete signal loss and a blank screen to popping from the speakers. Failures are identified as one of these two possible types 1) sudden signal off and 2) critical unlock. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
A19030B2020-01-08. Service bulletin. ELECTRICAL SYSTEM. ServiceNews Article - Are you hearing a popping or crackling from the speakers? This may be due to a connection issue in the MOST bus network or a harness/wiring issue.
A19-0972019-12-18. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - Vehicles with system software version B.1.0.24 or higher now have the capability to log MOST bus network failures.
APaS120220199072019-12-10. Service bulletin. VEHICLE SPEED CONTROL. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
APaS111420199122019-11-20. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR; VEHICLE SPEED CONTROL. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
ONL6GP11082019_42019-11-16. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. Owner Notification Letter - On 2018-20 Odyssey EX, EX-L, Touring, and Elite trim levels, the Display Audio screen may show the clock being off by 1 hour. To correct this, an audio software update is available. Honda strongly recommends updating your vehicle as soon as possible.
APaS102820199132019-11-05. Service bulletin. EQUIPMENT; ENGINE. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
A19-0972019-10-29. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - Vehicles with system software version B.1.0.24 or higher now have the capability to log MOST bus network failures.
APaS100920199122019-10-26. Service bulletin. VEHICLE SPEED CONTROL. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
APaS100920199112019-10-26. Service bulletin. VEHICLE SPEED CONTROL. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
APaS100920199102019-10-26. Service bulletin. VEHICLE SPEED CONTROL. Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019-2020 Odysseys, Passports & Pilots with a customer complaint of the auto idle stop inop. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
A19-0962019-10-03. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Service Bulletin - The Display Audio screen may show the clock off by 1 hour. This is caused by a software issue that stores the incorrect date in the audio unit.
A19-0972019-09-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Service Bulletin - Vehicles with system software version B.1.0.24 or higher now have the capability to log MOST bus network failures.
ABOM082920199022019-09-07. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. Dealer Message - Today, August 29, 2019, American Honda is announcing a product update for certain 2018-2020 Odyssey, 2019 Passport and 2019-2020 Pilot vehicles where the display audio system may not show the correct time. Do an iN VIN status inquiry to determine which units in your inventory are affected.
A19-0962019-09-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; EQUIPMENT. Service Bulletin - The Display Audio screen may show the clock off by 1 hour. This is caused by a software issue that stores the incorrect date in the audio unit.

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