2015 Toyota Sienna problems and complaints
Owners have filed 233 complaints with NHTSA about the 2015 Toyota Sienna. The most-reported areas: Structure (61), Unknown Or Other (44), Electrical System (44).
Key takeaways
- 233 owner complaints on file with NHTSA.
- 17 involve a crash, 7 a fire, 28 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Structure | 61 | 26% |
| Unknown Or Other | 44 | 19% |
| Electrical System | 44 | 19% |
| Service Brakes | 18 | 8% |
| Engine | 16 | 7% |
| Wheels | 14 | 6% |
| Power Train | 12 | 5% |
| Steering | 11 | 5% |
| Air Bags | 9 | 4% |
| Seat Belts | 8 | 3% |
| Suspension | 8 | 3% |
| Fuel/Propulsion System | 7 | 3% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2015 Toyota Sienna VAN AWD | 5/5 | 4/5 | 5/5 | 4/5 |
| 2015 Toyota Sienna VAN FWD | 5/5 | 4/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Unknown Or Other - filed 2026-10-07
1) 2015 Toyota Sienna sliding door is faulty and can cause the door to open at anytime. They need to replace the junction block, rear sliding door wire harness and wire as part of existing recall G04. It was completed for driver side in 2024 and recall was marked complete however in 2026 the passenger side is encou...
Structure - filed 2026-09-20
This is the 2nd Occurrence where Sliding Door Cable Breaks and the doors are disabled where you can not open or close the sliding door and its jammed shut. Attempts to press the Power Sliding door buttons do not work. This is the 2nd Occurrence on this Vehicle. The First occurrence happened approximately 3 years ago wi...
Unknown Or Other - filed 2026-09-10
The cable that controls the sliding door lock disconnected leaving the door inoperable. According to the dealership, as well as, Toyota corporate, this is a common ongoing issue. This is a safety hazard and should be recalled immediately.
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More for the 2015 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.