2021 Honda Odyssey: engine and transmission complaints
NO ELEVATED SIGNAL
27%
33 of 123 relevant owner complaints are about the engine, transmission or fuel system
No elevated drivetrain complaint concentration in the available NHTSA records for the 2021 Honda Odyssey. Engine, transmission and fuel system account for 27% of relevant complaints.
Better than 75% of the 1,230 model years we track (2010–2023).
Excludes 17 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 24%).
Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.
What owners reported
ELECTRICAL SYSTEM,ENGINE09/02/2026
Mileage: 121000 When stopped and the auto idle initiated, we have had numerous incidents where the van has shutoff and required a restart. More recently, when the auto idle initiates, the entire engine turns off and the van has no power(car won't restart, can't get the car into neutral, sliding doors and tailgate won'…
ELECTRICAL SYSTEM,ENGINE08/26/2026
The first problem I came across was Auto start. It always say temporary off because either I didn't press on the break hard enough or the Ac is running. Mostly it off saying it need to be charge and the company already put a battery in the car and it still say the same thing. The other thing that keep happening with th…
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE08/14/2026
When coming to a complete atop, the engine switches off (the idle stop function), which is ok, but when I release the brake the engine often fails to restart. I’ve replaced the battery but this appears to be a common problem. It’s been happening more now at the end of summer when it’s hot for some reason. I was told t…
Three of 33 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.
Recall campaigns on this model year (8)
FUEL SYSTEM, GASOLINE:STORAGE
Braun Corporation (Braun) is recalling certain 2018-2021 Braun-modified Honda Odyssey vehicles. The fuel tank assembly installed by Braun may be susceptible to the fuel …
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
Honda (American Honda Motor Co) is recalling certain 2020-2021 Pilot and Ridgeline, and 2020-2022 Passport and Odyssey vehicles. The heating pads behind both side-view m…
BACK OVER PREVENTION:DISPLAY FUNCTION
Honda (American Honda Motor Co.) is recalling certain 2018-2023 Odyssey, 2019-2022 Pilot, and 2019-2023 Passport vehicles. Due to a faulty Media Oriented Systems Transpo…
This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.
Before you buy a 2021 Honda Odyssey
No elevated drivetrain pattern for this model year. That describes the model, not the car in front of you.
Get an independent pre-purchase inspection from a mechanic you choose.
8 recall campaigns on this model year. Whether a specific car still has one open depends on the VIN; the report checks that.
Ask for service records. A engine already replaced under warranty is a different car from one that was not.
Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.
Experimental model-level information. This is not a vehicle inspection, vehicle-history
report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition
of any individual vehicle.
