2015 Toyota Sienna Other or unknown Problems
- Complaints
- 48about this part
- Share
- 21%of 233 total for the year
- Median mileage
- 29,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 48 complaints about the other or unknown of the 2015 Toyota Sienna, 21% of the 233 complaints for this model year. Where a mileage was given, the median is 29,000 miles. 4 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“We purchased the Sienna new off the lot in 2015, and have had to replace the windshield 5 times due to cracks, and it's already cracked again. Sometimes it cracked due to pebbles or rocks hitting it, but other times it just cracked spontaneously. Once it cracked out of nowhere, and another time it was when we sprayed it with low-pressure water.”
NHTSA complaint #11104116, filed 2018-06, 29,000 miles“After we got the recall with the sliding rear doors fixed, the passenger sliding door won't close anymore. It will go so far and then beep and open up again. I feel that it's a major safety issue and it needs to be addressed. After having the car for only 3 years, we shouldn't be having these kinds of problems with it.”
NHTSA complaint #11110822, filed 2018-07, 39,096 miles“We were driving down the road at 65mph on a low traveled highway when there was a loud bang. It was almost as if a gun went off in the van. We pulled off and inspected the van and found out that the sunroof was shattered. The glass was blown outward and no rocks are inside the glass. It is going to cost over 800$ to fix. I am confident that the sunroof exploded.”
NHTSA complaint #10970282, filed 2017-04, 13,000 miles“Stopped at a red light when we heard an explosion, continued to drive when we became aware of noise and what appeared to be rushing wind . After checking all doors and windows and finding they were closed I just happened to slide open the cover leading to the sun roof and saw the exploded window and glass fragments.”
NHTSA complaint #11072700, filed 2018-02, 28,200 miles“Wheelchair van conversion gone wrong. I have it documented. The state of ohio spent $109 thousand I spent $40 thousand. The van is not safe to drive. I have documents from the Toyota dealer that the steering turn more left than turns to the right. I have more documents.”
NHTSA complaint #11203230, filed 2019-04, 1,300 milesRelated service bulletins
- 11028712Jan 7, 2026Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 11 | 9% |
| 2021 | 29 | 18% |
| 2020 | 6 | 16% |
| 2019 | 9 | 20% |
| 2018 | 14 | 19% |
| 2017 | 26 | 17% |
| 2016 | 14 | 18% |
| 2015 | 48 | 21% |
| 2014 | 28 | 17% |
| 2013 | 33 | 18% |
| 2012 | 28 | 11% |
| 2011 | 64 | 10% |
| 2010 | 27 | 16% |
| 2009 | 37 | 18% |
| 2008 | 38 | 9% |
| 2007 | 34 | 9% |
| 2006 | 59 | 6% |
| 2005 | 58 | 5% |
| 2004 | 107 | 5% |
| 2003 | 2 | 2% |
| 2002 | 3 | 2% |
| 2001 | 8 | 4% |
| 2000 | 13 | 4% |
| 1999 | 16 | 7% |
| 1998 | 6 | 2% |
Other parts of the 2015 Toyota Sienna
61 complaintsElectrical system
44 complaintsBrakes
18 complaintsEngine
16 complaintsWheels
14 complaintsTransmission and drivetrain
12 complaintsSteering
11 complaintsAir bags
9 complaintsSeat belts
8 complaintsSuspension
8 complaintsFuel system
7 complaintsExterior lighting
6 complaints
← All problems reported for the 2015 Toyota Sienna
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology