2012 Honda Odyssey engine problems

39 owner complaints filed with NHTSA name the engine on the 2012 Honda Odyssey — 16% of all complaints for this model year.

Engine complaints

16%

share of all complaints

66,500 mi

median reported incident mileage

1 / 3

crash / fire reports

What owners report

“For several years now, we have misfire issue or code P0304. We continue to change spark plugs cylinders. Both usually last a year or so then they need replaced again. I research the problem, no recall or the like. I did see his report on-line, wondering if it applies to us, Warranty Extension: MIL…”
filed Aug 31, 2025
“Dear NHTSA Advisor, Thank you for regarding my request for warranty coverage for the critical misfire and overheating defect with my 2012 Odyssey Honda Engine 3.5L Engine. Odyssey, as described in Honda’s Service Technical Bulletin 13-081. I must reiterate the severity of my situation: the part…”
filed Aug 26, 2025

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

Service Bulletin - American Honda announced a powertrain warranty extension in 2013 as a result of a settlement of a class action captioned, Soto et al.v. American Honda Motor Co., Inc., Case No. 3:12-cv-1377-SI (N.D…
A13-081 · Service Bulletin/Repair Instructions · issued Oct 8, 2020
These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB…
DOR-M9J4S-07 · Service Bulletin/Repair Instructions · issued Jun 3, 2020
These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB…
DOR-M3J3F-07 · Service Bulletin/Repair Instructions · issued Jun 3, 2020