Toyota Sienna engine problems by year
262 NHTSA owner complaints name the engine across 23 Sienna model years. The most reported year is 2007 with 42 reports.
| Year | Engine reports | Share | Median mileage | |
|---|---|---|---|---|
| 2022 Sienna | 5 | 4% | — | |
| 2021 Sienna | 8 | 5% | — | |
| 2020 Sienna | 6 | 17% | — | |
| 2019 Sienna | 4 | 9% | — | |
| 2018 Sienna | 5 | 7% | — | |
| 2017 Sienna | 15 | 10% | — | |
| 2016 Sienna | 4 | 5% | — | |
| 2015 Sienna | 15 | 7% | 39,325 mi | |
| 2014 Sienna | 11 | 7% | — | |
| 2013 Sienna | 7 | 4% | — | |
| 2012 Sienna | 9 | 4% | — | |
| 2011 Sienna | 23 | 4% | 110,000 mi | |
| 2010 Sienna | 5 | 3% | — | |
| 2009 Sienna | 10 | 5% | — | |
| 2008 Sienna | 39 | 9% | 80,600 mi | |
| 2007 Sienna | 42 | 12% | 104,557 mi | |
| 2006 Sienna | 11 | 1% | — | |
| 2005 Sienna | 22 | 2% | 107,000 mi | |
| 2004 Sienna | 13 | 1% | 125,241 mi | |
| 2002 Sienna | 3 | 2% | — | |
| 2001 Sienna | 2 | 1% | — | |
| 2000 Sienna | 2 | 1% | — | |
| 1998 Sienna | 1 | 0% | — |
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.