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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.

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
ABOM083120239012023-09-06. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Dealer Message - Torque converters may not have been manufactured to proper specifications. As a result, the torque converter lock-up clutch cannot provide adequate holding force due to pressure bleeding down through a crack in the lock-up piston. The reduced lock-up clutch capacity results in the MIL illuminating and set DTC P0741 Torque Converter Clutch Circuit Performance or Stuck OFF.
A19-1242021-10-16. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service Bulletin - The transmission has intermittent harsh or jerky upshifts with steady acceleration, or the MIL comes on with DTC P0716.
A21-0102021-02-18. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. "Service Bulletin - The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear or clogging inside one or more injectors. One or more of the following DTCs may be stored: - P0420 (rear bank catalyst system efficiency below threshold [bank 1]) - P0430 (front bank catalyst system efficiency below threshold [bank 2]) - P0300-P0306 (misfire) - P219A (air-fuel ratio variation of cylinder [bank 1, rear bank]) - P219B (air-fuel ratio variation of cylinder [bank 2, front bank]) American Honda is extending the warranty on these repairs to 10 years from the original date of purchase or 150,000 miles, whichever comes first."
A20-1002021-02-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. "Service Bulletin - The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear or clogging inside one or more injectors. One or more of the following DTCs may be stored: - P0420 (rear bank catalyst system efficiency below threshold [bank 1]) - P0430 (front bank catalyst system efficiency below threshold [bank 2]) - P0300-P0306 (misfire) - P219A (air-fuel ratio variation of cylinder [bank 1, rear bank]) - P219B (air-fuel ratio variation of cylinder [bank 2, front bank]) American Honda is extending the warranty on these repairs to 10 years from the original date of purchase or 150,000 miles, whichever comes first."
A19-0722020-12-02. Service bulletin. 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]). Additionally, one or more of the following DTCs may also be stored: -P030X (misfire) -P219A (air-fuel ratio variation of cylinder [bank 1, rear bank]) -P219B (air-fuel ratio variation of cylinder [bank 2, front bank])"
A19-1242020-04-10. Service bulletin. POWER TRAIN. Service Bulletin - The transmission has intermittent harsh or jerky upshifts with steady acceleration, or the MIL comes on with DTC P0716.
A19-1242020-03-03. Service bulletin. POWER TRAIN. Service Bulletin - The transmission has intermittent harsh or jerky upshifts with steady acceleration, or the MIL comes on with DTC P0716.
A19-1242020-01-14. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service Bulletin - The transmission has intermittent harsh or jerky upshifts with steady acceleration, or the MIL comes on with DTC P0716.
A19-1242020-01-08. Service bulletin. POWER TRAIN. Service Bulletin - The transmission has intermittent harsh or jerky upshifts with steady acceleration, or the MIL comes on with DTC P0716.
A19-0712019-07-11. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Service Bulletin - Auto idle stop does not work. The PCM incorrectly calculates battery current, which prevents auto idle stop from working.
A16-0872018-10-15. Service bulletin. POWER TRAIN. Service bulletin - The transmission end cover leaks on vehicles with a 9-speed A/T. During assembly, the transmission end cover sealing gasket was torn.
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.
A160872017-09-27. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Service bulletin - The transmission end cover leaks on vehicles with a 9-speed A/T. During assembly, the transmission end cover sealing gasket was torn.

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