2014 Toyota Sienna fuel/propulsion system problems
10 owner complaints filed with NHTSA name the fuel/propulsion system on the 2014 Toyota Sienna — 6% of all complaints for this model year.
What owners report
“Sluggish start when hot - fuel pump leak into engine when hot, causing starter issues, wears out starter, causes other stress on engine. Common issue in Toyota Siennas. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
filed Jul 6, 2026
“Occasionally when from a stop or after slowing down and then accelerating rapidly, the car does not do anything and almost gets rear ended. I have told the dealer and they said it is no unusual with toyota's..... Dallas corporate says see dealer. I just quite complaining after a couple years, but…”
filed Feb 26, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Sienna years
| Year | Reports | Share |
|---|---|---|
| 2022 Sienna | 4 | 3% |
| 2021 Sienna | 5 | 3% |
| 2020 Sienna | 6 | 17% |
| 2019 Sienna | 7 | 16% |
| 2018 Sienna | 9 | 13% |
| 2017 Sienna | 14 | 9% |
| 2016 Sienna | 1 | 1% |
| 2015 Sienna | 7 | 3% |
| 2013 Sienna | 5 | 3% |
| 2012 Sienna | 4 | 2% |
| 2011 Sienna | 8 | 1% |
| 2010 Sienna | 2 | 1% |
Other reported problem areas on the 2014 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.