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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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By component

By trouble code

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

Bulletins, newest first
AER18120A2018-12-30. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:TAILGATE; STRUCTURE. Engineering request for investigation - American Honda (AHM) is investigating certain 2018-2019 Odysseys with customer complaint of power tailgate inop. 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.
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.
A18090F2018-12-03. Service bulletin. ELECTRICAL SYSTEM. Service bulletin - The Bluetooth ® HandsFreeLink ® (HFL) system freezes after a phone call, and the stored voice tags are missing when the ignition is turned to ON. Some audio units are not updated to the latest software version.
A18070E2018-08-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Servicenews article - There are two types of 12-volt batteries used in Honda vehicles today: the conventional flooded lead acid (FLA) battery and the absorbed glass mat (AGM) battery. Each battery type has its own uniquely tuned charging and battery management systems, therefore cannot be interchanged.
A18070E2018-07-30. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Servicenews article - There are two types of 12-volt batteries used in Honda vehicles today: the conventional flooded lead acid (FLA) battery and the absorbed glass mat (AGM) battery. Each battery type has its own uniquely tuned charging and battery management systems, therefore cannot be interchanged.
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.
APaS051020189022018-07-16. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. 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.
APaS040620189042018-04-23. Service bulletin. ELECTRICAL SYSTEM. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys with a customer complaint of the sliding door reversal during closing operation. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
6WG 3-30-20182018-04-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Customer letter - Your 2018 Odyssey has a new feature that lets them automatically download the latest connectivity (navigation, and rear entertainment) software when located in a Honda dealer?s service area. This lets you receive the latest updates and fixes for known problems. Your 2018 Odyssey does not meet the design specifications, and you may not be able to receive the latest software. 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.
6WF 3-30-20182018-04-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Customer letter - Your 2018 Odyssey has a new feature that lets them automatically download the latest connectivity (navigation, rear entertainment) software when located in a Honda dealer?s service area. This lets you receive the latest updates and fixes. Your Odyssey does not meet the design specifications and you may not be able to receive the latest software.
APaS032620189022018-04-16. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES:DOORS:LATCH. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2018 Odysseys with a customer complaint of the sliding door reversal during closing operation. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
ATS1802062018-03-12. Service bulletin. ELECTRICAL SYSTEM. Tech line summary 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.
A17-0362018-03-05. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
ABOM111020179012017-11-17. Service bulletin. ELECTRICAL SYSTEM. Dealer message - Today, November 10, 2017, American Honda is announcing a Product Update for a limited number of 2018 Odyssey vehicles where under certain conditions, the rear window switch internal software enters an unstable condition and cannot recover, making the window switch inoperable. Check VIN Status to determine which units in your inventory are affected.
A17-0902017-11-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - Under certain conditions, the rear window switch internal software enters an unstable condition and cannot recover, making the window switch inoperable.
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.
A17-0362017-09-27. Service bulletin. ENGINE; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
A17080G2017-09-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Servicenews article - On 2018 Odysseys, DTCs U1281 (wireless charger unit lost communication with MICU) and U128D (wireless charger unit lost communication with gauge control module) may falsely set during normal operation after the ignition is turned off. These DTCs don?t cause any indicators to come on, but when falsely set, appear together when you?re doing an all DTC check or a body DTC check. Once they?re cleared, they won?t return immediately but could return after some normal usage of the vehicle.
A17-0362017-08-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
A17050D2017-07-31. Service bulletin. ELECTRICAL SYSTEM. Service news article - On early production vehicles, when the factory removed the No. 18 BACKUP (10 A) fuse for shipping, DTC U1291-00 (lost communication with the relay control module) was falsely set. This DTC doesn't cause any indicators to come on, but it will show up the first time you run an all DTC check with the i-HDS.

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