2020 Toyota Sienna owner complaints
Most named: transmission and drivetrain
8 of 38 complaints
- Crashes
- 0
- Fires
- 1
- Injuries
- 0
- Deaths
- 0
Owner complaints to the US safety agency (NHTSA), 2020 models.
Components named most often
A complaint can name more than one component.
| Component | Complaints | Share of complaints |
|---|---|---|
| Transmission and drivetrain | 8 | 21% |
| Electrical system | 7 | 18% |
| Engine | 6 | 16% |
| Fuel system | 6 | 16% |
| Other or not specified | 6 | 16% |
| Structure | 4 | 11% |
Complaints by model year
Rivals, 2020
| Rival | Complaints |
|---|---|
| Honda Odyssey | 474 |
| Toyota Highlander | 317 |
| Chrysler Pacifica | 170 |
| Kia Sedona | 20 |
| Dodge Grand Caravan | 20 |
| Chrysler Voyager | 13 |
What this cannot tell you
Counts, not rates. Sales volume differs by model.
Complaints are owner reports, not confirmed defects.
Source: NHTSA complaints data (api.nhtsa.gov), public domain. Collected 2026-10-05.
- Two or more sources agree
- One source
- Model-level or estimate
- Sources differ