Toyota Sienna Hybrid electrical system problems by year
13 NHTSA owner complaints name the electrical system across 4 Sienna Hybrid model years. The most reported year is 2023 with 8 reports.
| Year | Electrical System reports | Share | Median mileage | |
|---|---|---|---|---|
| 2025 Sienna Hybrid | 1 | 0% | — | |
| 2024 Sienna Hybrid | 1 | 2% | — | |
| 2023 Sienna Hybrid | 8 | 13% | — | |
| 2021 Sienna Hybrid | 3 | 8% | — |
Share is the fraction of that year’s complaints naming the electrical system. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.