2015 Toyota Sienna power train problems
12 owner complaints filed with NHTSA name the power train on the 2015 Toyota Sienna — 5% of all complaints for this model year.
12
Power Train complaints
5%
share of all complaints
—
median reported incident mileage
2 / 0
crash / fire reports
What owners report
“On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT pressed. Manufacture initiated an investigation after we contacted their…”
filed Apr 22, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Sienna years
| Year | Reports | Share |
|---|---|---|
| 2022 Sienna | 2 | 2% |
| 2021 Sienna | 8 | 5% |
| 2020 Sienna | 8 | 22% |
| 2019 Sienna | 7 | 16% |
| 2018 Sienna | 18 | 26% |
| 2017 Sienna | 36 | 24% |
| 2016 Sienna | 3 | 4% |
| 2014 Sienna | 7 | 4% |
| 2013 Sienna | 14 | 8% |
| 2012 Sienna | 17 | 7% |
| 2011 Sienna | 30 | 5% |
| 2010 Sienna | 17 | 10% |
Other reported problem areas on the 2015 Toyota Sienna
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.