2025 Honda Odyssey: Power Train complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 40 owner complaints for the 2025 Honda Odyssey that list the power train component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11772407 (filed 10/20/2026): “The vehicle idle start/stop feature has started struggling to reengage, particularly, it seems, in warmer weather. at least six times in the past two months (sept-oct 2026), the start fails completely during a drive. what this means is that the vehicle is stopped at a light and the start/stop kicks …”
- NHTSA complaint ODI #11771547 (filed 10/16/2026): “There appears to be an issue with the automatic start-stop system. occasionally, the engine will shut off at a stop light but fail to restart as expected. to get the vehicle running again, i have to turn the car off completely, wait a few seconds, and then start it back up.…”
- NHTSA complaint ODI #11768696 (filed 10/03/2026): “On numerous occasions, the start/stop idle system could not restart the engine. happens often but not predictably.…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Diagnosis needs a scan tool; repair or replacement needs a lift, transmission jack and the manufacturer's fluid fill/relearn procedure. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .