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Service bulletins for the 2018 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.

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

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
A19030B2019-05-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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, which can be identified by the unique red and green connectors at each component of the infotainment system.
ATS1904022019-04-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. "Tech Line Summary Article - Are you having this issue while using Apple CarPlay? -CarPlay 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 navigation display stays on."
A19-0232019-04-21. Service bulletin. EQUIPMENT; EQUIPMENT:APPLIANCE:AIR CONDITIONER. Service Bulletin - There is a high-pitched noise coming from the heater case while the fan is on. Some vehicles might have a defective rear blower motor or could have a heater case that was warped during the manufacturing cooling process.
A19-0222019-02-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Service Bulletin - When raising the fan speed and/or temperature at the rear climate control panel, the rear fan control and/or rear temperature control button may be hard to press or not work.
APaS112620189032018-12-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys with a customer complaint of a high-pitched noise coming from the heater case when heater fan is on. To fully 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.
A18-1252018-12-07. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. Service bulletin - There is a buzz, hum, booming, or vibration noise from the front driver door speaker at 1500 RPM while driving between 35-45 MPH. The software in the ANC control unit.
APaS111320189022018-11-30. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys with a customer complaint of a high-pitched noise coming from the heater case when heater fan is on. To fully 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.
AER18110A2018-11-30. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT. Engineering request for investigation - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys with a customer complaint of a highpitched noise coming from the heater case when heater fan is on. To fully 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.
A18-0862018-10-01. Service bulletin. EQUIPMENT; ENGINE. Service bulletin - Some troubleshooting procedures for a loss of communication or F-CAN malfunction DTC?s require running the F-CAN Bus Connected Unit Check using the i-HDS. There are certain control units that may be reported as Not Available in the Status column even though they are properly communicating.
A18080G2018-09-24. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL. Servicenews article - We're getting reports that after about 10 minutes of continuous CabinWatch use, the Display Audio screen shows an error message and goes black or stops working. We're aware of this issue and have it under investigation. This issue affects just CabinWatch and goes away after cycling the ignition.
APaS070920189022018-08-06. Service bulletin. EQUIPMENT; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys & Pilots with a customer complaint of the auto idle stop inoperative. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
A18070D2018-08-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE; EQUIPMENT:ELECTRICAL. Servicenews article - Until recently, Tech Line had only two categories for auto idle stop system issues. That made it hard for our engineering staff to understand what was specifically inhibiting the system. To help with this, Tech Line has added more categories to match what's listed in the service information. As a result, when calling them for an auto idle stop issue, you must now send a snapshot. Tech Line needs it for troubleshooting and won't be able to help unless you do.
A18070D2018-07-30. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Servicenews article - Until recently, Tech Line had only two categories for auto idle stop system issues. That made it hard for our engineering staff to understand what was specifically inhibiting the system. To help with this, Tech Line has added more categories to match what's listed in the service information. As a result, when calling them for an auto idle stop issue, you must now send a snapshot. Tech Line needs it for troubleshooting and won't be able to help unless you do.
ATS 1805012018-07-16. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL. Tech line summary article - Are you hearing a rumbling from the driver's door speaker that sounds like driving on a shoulder rumble strip? We're aware of this issue and have it under investigation.
APaS053120189042018-06-11. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys & Pilots with a customer complaint of the auto idle stop inoperative. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
Customer Letter2018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Customer letter - Your navigation application on your 2018 Odyssey may slow down when off-road cumulative driving (such as parking lots, gated communities, private roads) is extensive. Map scrolling and search operation may be delayed or appear not to work.
ATS1803082018-04-16. Service bulletin. EQUIPMENT:ELECTRICAL. Tech line summary article - If you get a vehicle with Error Code 9003 Unable to Update on the Display Audio, it means there?s a problem doing an over-the-air (OTA) update. We?re aware of this issue, and we?re looking for a solution.
ABOM030620189012018-04-16. Service bulletin. EQUIPMENT:ELECTRICAL. Dealer message - Due to faulty software installed in the affected vehicles, the DA unit cannot connect to the OTA while in the dealership to receive software updates. Some vehicles can connect to the OTA but need an update to the navigation system. The navigation system in these vehicles saves driving history, which leads to the system becoming either slow or unresponsive. A third group of vehicles are affected by both symptoms, leading to the final campaign.
A18-0092018-04-16. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Service bulletin - Affected vehicles have a new feature that lets them automatically download the latest audio and connectivity (audio, navigation, rear entertainment) software when located in a Honda dealer's service area. This lets the vehicle receive the latest updates and fixes. The affected vehicles do not meet the design specifications, and you may not be able to receive the latest software at a Honda dealer.
A18-0082018-04-16. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Service bulletin - The navigation application may slow down when extensive cumulative driving (such as parking lots, gated communities, private roads) is done. Map scrolling and search operation may be delayed or appear not to work.
A18-0072018-04-16. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Service bulletin - A new feature lets the vehicle automatically download the latest audio and connectivity (audio, navigation, and rear entertainment) software when located in a Honda dealer's service area. This lets the vehicle receive the latest updates and fixes for known problems. Affected vehicles do not meet the design specifications, and you may not be able to receive the latest software at a Honda dealer. In addition, the vehicle's navigation application may slow down when cumulative off-road driving (parking lots, gated communities, private roads) is done. Map scrolling and search operation may be delayed or appear not to work.
APaS112720179022017-12-08. Service bulletin. EQUIPMENT. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys with a customer complaint of either a front brake noise or a rear brake noise. To fully 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.
A17-0882017-11-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - The audio unit displays Check Tuner when in the SXM mode or Radio Unavailable displays in AM/FM mode. The remote tuner unit has a software problem.
A17090B2017-10-05. Service bulletin. EQUIPMENT; SEATS. Servicenews article - Because of the higher center console that comes in the 2018 Odyssey, we needed to change the driver?s seat armrest ergonomics to reduce contact between the armrest and the center console with the driver?s seat lowered as far as it will go. As a result, some customers may find the driver?s seat armrest isn?t as comfortable as they would like in its fully lowered position.
A17090B2017-10-04. Service bulletin. EQUIPMENT. Servicenews article - Because of the higher center console that comes in the 2018 Odyssey, we needed to change the driver?s seat armrest ergonomics to reduce contact between the armrest and the center console with the driver?s seat lowered as far as it will go. As a result, some customers may find the driver?s seat armrest isn?t as comfortable as they would like in its fully lowered position.

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