2021 Honda Odyssey engine problems
23 owner complaints filed with NHTSA name the engine on the 2021 Honda Odyssey — 18% of all complaints for this model year.
What owners report
“2021 Odyssey EXL shuts off completely at a traffic stop light. Happened 2 times in a 2 week period. Without warning the engine switches off completely and puts itself in "P" mode, all light comes on as if in accessory mode, radio switches off, all doors unlocked. To get going, the driver had to…”
filed Jul 22, 2026
“My 2021 Honda Odyssey Touring has experienced a severe engine stalling defect that creates an immediate traffic hazard. On multiple occasions during warm weather conditions, the Auto Idle-Stop system has engaged at a stoplight, but the vehicle completely failed to restart automatically when…”
filed Jul 14, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engaging, your vehicle may not automatically restart.
ONL6AX022025A · Other · issued Feb 19, 2025
Engine problems in other Odyssey years
| Year | Reports | Share |
|---|---|---|
| 2026 Odyssey | 5 | 22% |
| 2025 Odyssey | 151 | 52% |
| 2024 Odyssey | 29 | 35% |
| 2023 Odyssey | 11 | 12% |
| 2022 Odyssey | 15 | 12% |
| 2020 Odyssey | 64 | 15% |
| 2019 Odyssey | 128 | 14% |
| 2018 Odyssey | 183 | 19% |
| 2017 Odyssey | 10 | 26% |
| 2016 Odyssey | 91 | 34% |
| 2015 Odyssey | 53 | 26% |
| 2014 Odyssey | 59 | 19% |
Other reported problem areas on the 2021 Honda Odyssey
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.