2012 Toyota Sienna power train problems
17 owner complaints filed with NHTSA name the power train on the 2012 Toyota Sienna — 7% of all complaints for this model year.
What owners report
“The contact owns a 2012 Toyota Sienna. The contact stated that the rear differential was making an abnormal whirling and grinding sound. There were no warning lights illuminated. The contact called the local dealer but the vehicle was not diagnosed or repaired. The manufacturer was notified of the…”
filed Apr 19, 2022
“Vehicle began 'whirring' metal noise from underneath. Local mechanic said it was coming from rear differential. I took it to a Toyota dealer, they said rear differential coupler needs replacing ($2159) and drive shaft ($992). It seems the bearing ring inside this sealed unit has failed. Noise is…”
filed Jul 24, 2021
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% |
| 2015 Sienna | 12 | 5% |
| 2014 Sienna | 7 | 4% |
| 2013 Sienna | 14 | 8% |
| 2011 Sienna | 30 | 5% |
| 2010 Sienna | 17 | 10% |
Other reported problem areas on the 2012 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.