Toyota Sienna Hybrid engine problems by year
10 NHTSA owner complaints name the engine across 2 Sienna Hybrid model years. The most reported year is 2024 with 7 reports.
| Year | Engine reports | Share | Median mileage | |
|---|---|---|---|---|
| 2024 Sienna Hybrid | 7 | 11% | — | |
| 2021 Sienna Hybrid | 3 | 8% | — |
Share is the fraction of that year’s complaints naming the engine. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.