2012 Toyota Sienna problems and complaints
Owners have filed 247 complaints with NHTSA about the 2012 Toyota Sienna. The most-reported areas: Air Bags (84), Structure (72), Unknown Or Other (28).
Key takeaways
- 247 owner complaints on file with NHTSA.
- 10 involve a crash, 4 a fire, 13 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Air Bags | 84 | 34% |
| Structure | 72 | 29% |
| Unknown Or Other | 28 | 11% |
| Electrical System | 27 | 11% |
| Power Train | 17 | 7% |
| Steering | 15 | 6% |
| Wheels | 12 | 5% |
| Service Brakes | 11 | 4% |
| Vehicle Speed Control | 11 | 4% |
| Engine | 9 | 4% |
| Tires | 8 | 3% |
| Visibility | 6 | 2% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2012 Toyota Sienna VAN AWD | 4/5 | 4/5 | 5/5 | 4/5 |
| 2012 Toyota Sienna VAN FWD | 4/5 | 4/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Structure - filed 2026-07-14
The automatic side doors of this Toyota sienna le have malfunctioned twice between expensive repairs. When the hardware comes off the guide rail, it hits the window behind the door and shatters in covering the interior and occupants with glass. I had the window repaired after I had the door hardware replaced after i...
Structure - filed 2026-01-29
The contact owns a 2012 Toyota Sienna. The contact was unable to use the driver's side cargo door. The contact stated that the door was possibly frozen; however, while driving at an undisclosed speed, the door opened unexpectedly. The contact referenced NHTSA Campaign Number: 16V858000 (Structure); however, the VIN was...
Engine - filed 2025-10-07
Coolant leaking from rear of the engine through the head gasket. Vehicle struggles to accelerate beyond 55mph or 80kmph. A quick search on the internet shows that this is a frequent occurrence in this 3.5L V6 engine from Toyota model years 2011 through 2017.
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More for the 2012 Toyota Sienna
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.