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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.

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By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
AATS2103012021-03-23. Service bulletin. ELECTRICAL SYSTEM. Tech Line Summary Article - If you have a customer stating their Apple iPhone 12 (all models: iPhone 12, iPhone 12 mini, iPhone 12 Pro, and iPhone 12 Pro Max) does not charge when using the wireless charger, please let them know that we are aware of these concerns and are currently looking into it. Replacing the wireless charger or using another iPhone 12 will not address the customer's concern.
ABOM021820212021-02-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Dealer Message - Today, February 18, 2021, American Honda is announcing a warranty extension for certain 2018-20 Odyssey, 2019-20 Passport, and 2019-20 Pilot vehicles. This warranty extension covers communication issues in the MOST bus network where the vehicle may have popping or crackling from the speakers, no sound from the audio system, a Network Loss message, or display issues. American Honda is extending the warranty for the MOST bus network connectors on these vehicles to 5 years or 60,000 miles from the original date of purchase, whichever comes first.
A21-0132021-02-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Service Bulletin - A loose connection in the MOST bus network is causing a popping or crackling from the speakers or no sound from the audio system. There may also be a Network Loss message and/or display issues.
A20-0492021-02-26. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Service Bulletin - There is a popping or crackling from the speakers or no sound from the audio system. You may also see a Network Loss message and/or display issues.
A21010C2021-01-30. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. ServiceNews Article - We have received information from the vendor (Alpine) that display panels are being replaced for cracks on the center display screen. When they review these parts, they're finding that an aftermarket screen protector had been installed and that the screen protector is cracked. So, if you have a center display that appears to have a cracked screen, confirm that it does not have an aftermarket screen protector installed. If installed, remove it, and then check if the center display screen itself is cracked.
A20-1032020-12-19. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - The Bluetooth HandsFreeLink (HFL) system freezes after a phone call and stored voice tags are missing when the ignition is turned ON.
A20-0492020-10-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Service Bulletin - There is a popping or crackling from the speakers or no sound from the audio system. You may also see a Network Loss message.
APTD072920202020-08-06. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - Service Bulletins A20-058 and A20-049 are now released to address popping or crackling noises from the speakers, no sound from the audio system, or possibility of a "Network Loss" message due to a poor connection in the MOST Bus Network. Previous distance learning provided temporary repair procedures to address these complaints, and now we've updated the training to address the latest information provided in the bulletin.
APaS072920202020-08-05. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - On Monday July 27th, American Honda released Service Bulletin 20-049 for 19-20 Odyssey. Service Bulletin 20-058 for 19-21 Pilot and Passport is forthcoming. These service bulletins are for "Popping or Crackle From Speakers, No Sound From the Audio System, Network Loss Message and/or Display Issues".
A20060B2020-06-25. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. ServiceNews Article - We've been getting reports that incorrect parts are being ordered when trying to order an infotainment control unit from Denso. Service techs and/or parts specialists are ordering a range of incorrect parts for issues related to this unit. This is due to a change in the Remanufactured Parts Order form.
A19030B2020-05-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; 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.
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.
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.
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.
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.
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.

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