2020 Honda Odyssey Engine cooling Problems
- Complaints
- 3about this part
- Share
- 1%of 491 total for the year
- Median mileage
- 85,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2020 Honda Odyssey, 1% of the 491 complaints for this model year. Where a mileage was given, the median is 85,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2020 Honda Odyssey. The contact stated that there was an abnormal knocking sound coming from the engine. The vehicle was taken to a local dealer where it was diagnosed. The contact was informed that the knocking sound coming from the engine became louder to take the vehicle back for inspection. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 3,000.”
NHTSA complaint #11624995, filed 2024-11, 3,000 miles“The contact owns a 2020 Honda Odyssey. The contact stated that the vehicle made an abnormal ticking sound while depressing the accelerator pedal, and the engine made a loud sound. There was no warning light illuminated. Upon investigation, the contact related the failure to NHTSA Action Number: PE25008 (Engine). The vehicle was taken to the local dealer, where it was diagnosed and there were metal shavings found in the engine oil. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. …”
NHTSA complaint #11734818, filed 2026-04, 85,000 miles“The contact owns a 2020 Honda Odyssey. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to coast to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the connecting rod bearings, resulting in damages to the engine, causing the engine to seize. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. …”
NHTSA complaint #11689182, filed 2025-09, 130,000 milesRelated service bulletins
- 10248979Jan 10, 2024Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engaging, your vehicle may not automatically restart.
- 10247623Dec 15, 2023Service Bulletin - Due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441…
- 10245554Nov 10, 2023Dealer Message - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can…
- 10245550Nov 10, 2023Service Bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can…
- 10240336Jul 26, 2023Service Bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can…
- 10234629Apr 12, 2023Service Bulletin - The engine will not crank on initial startup after precipitation and sub-freezing temperatures. Water can enter the starter motor, and when temperatures drop…
- 10233667Mar 28, 2023Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 Accords, CR-Vs, Odysseys, Passports, Pilots, Ridgelines, 2020 Fits, 2020-2021 Civic…
- 10233206Mar 13, 2023Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2022 Accords, CR-Vs, Odysseys, Passports, Pilots, Ridgelines, 2020 Fits, 2020-2021 Civic…
- 10225475Oct 25, 2022Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2021 Accords, CR-Vs & Odysseys with a customer complaint of the Check Engine Light (CEL) on &…
- 10220354Sep 15, 2022Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2020-2021 Accords, CR-Vs & Odysseys with a customer complaint of the Check Engine Light (CEL) on &…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 6 | 1% |
| 2024 | 2 | 2% |
| 2023 | 1 | 1% |
| 2021 | 1 | 1% |
| 2020 | 3 | 1% |
| 2019 | 7 | 1% |
| 2018 | 12 | 1% |
| 2016 | 4 | 1% |
| 2014 | 1 | 0% |
| 2013 | 7 | 3% |
| 2012 | 6 | 2% |
| 2011 | 3 | 1% |
| 2010 | 10 | 4% |
| 2009 | 6 | 3% |
| 2008 | 14 | 3% |
| 2007 | 36 | 4% |
| 2006 | 71 | 10% |
| 2005 | 87 | 10% |
| 2004 | 22 | 4% |
| 2003 | 44 | 5% |
| 2002 | 42 | 4% |
| 2001 | 28 | 5% |
| 2000 | 29 | 4% |
| 1999 | 35 | 7% |
| 1998 | 3 | 4% |
| 1996 | 11 | 16% |
| 1995 | 2 | 2% |
Other parts of the 2020 Honda Odyssey
186 complaintsElectrical system
173 complaintsLane departure
128 complaintsEngine
71 complaintsOther or unknown
71 complaintsBody and structure
32 complaintsFuel system
31 complaintsBack-over prevention (rear camera)
23 complaintsBrakes
22 complaintsAir bags
20 complaintsTransmission and drivetrain
17 complaintsVehicle speed control
14 complaints
← All problems reported for the 2020 Honda Odyssey
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology