AutoUtility currently tracks 230 official NHTSA owner defect complaints for the 2015 Toyota Sienna. Body & Structure issues are the most frequently reported category, appearing in 64 complaints (27.8% of submitted records). Among these NHTSA complaint records, 17 filings cite a crash, 7 cite a fire, 13 report one or more injuries.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
64 owner complaints submitted to NHTSA ODI for this subsystem.
44 owner complaints submitted to NHTSA ODI for this subsystem.
21 owner complaints submitted to NHTSA ODI for this subsystem.
19 owner complaints submitted to NHTSA ODI for this subsystem.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"Component Failed & Availability: The engine on my 2015 Toyota Sienna (99,000 miles) catastrophically failed and is completely seized. The vehicle and engine are in my possession and are fully available for physical inspection. Safety Risk: The vehicle shut down completely while in motion, causing..."
"I am submitting this complaint to request that the National Highway Traffic Safety Administration (NHTSA) document and evaluate what may be a broader defect affecting certain Toyota Sienna vehicles and determine whether it presents a potential safety-related defect trend. My 2015 Toyota Sienna was..."
"I have requested urgent warranty evaluation regarding two Kumho Solus TA51a tires installed on my Toyota Sienna (Model: Kumho Solus TA51a, Size: 235/60R17 102H, DOT: 1824) Both front tires are exhibiting abnormal tread chunking and visible surface shredding. The tires are relatively new (purchased..."
"My 2015 Toyota Sienna has “Sticky” steering. When on a curve, like an highway curved ramp, the steering locks in place. I have to pull the steering wheel back to keep the car on track. When it sticks I can literally let go on a curve and it will hold it’s position. Even when driving straight this..."
"Rain water leaking into the parked vehicle on the driver and passenger seat belts, potentially weakening the belts and creating odor."
Reported defect complaint volume across sibling model years (2015–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Toyota Sienna Current Page | 230 | 17 | 6 | Current |
| 2016 Toyota Sienna | 75 | 7 | 5 | View 2016 Problems → |
| 2017 Toyota Sienna | 152 | 13 | 10 | View 2017 Problems → |
| 2018 Toyota Sienna | 69 | 5 | 7 | View 2018 Problems → |
| 2019 Toyota Sienna | 45 | 2 | 7 | View 2019 Problems → |
| 2020 Toyota Sienna | 37 | 0 | 2 | View 2020 Problems → |
| 2021 Toyota Sienna | 37 | 0 | 4 | View 2021 Problems → |
| 2022 Toyota Sienna | 15 | 1 | 4 | View 2022 Problems → |
| 2023 Toyota Sienna | 66 | 8 | 2 | View 2023 Problems → |
| 2024 Toyota Sienna | 65 | 5 | 3 | View 2024 Problems → |
| 2025 Toyota Sienna | 264 | 2 | 5 | View 2025 Problems → |
| 2026 Toyota Sienna | 0 | 0 | 0 | View 2026 Problems → |
Complete distribution of consumer defect reports across all 54 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Structure & Body NHTSA category: STRUCTURE | 49 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 29 | 0 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 21 | 0 | 3 | 0 | 0 |
| Engine NHTSA category: ENGINE | 9 | 0 | 3 | 2 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 9 | 2 | 0 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES | 9 | 1 | 0 | 2 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 9 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 7 | 5 | 0 | 7 | 0 |
| ELECTRICAL SYSTEM,STRUCTURE | 7 | 0 | 0 | 1 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 5 | 0 | 0 | 0 | 0 |
| Seat Belts NHTSA category: SEAT BELTS | 5 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 5 | 0 | 0 | 0 | 0 |
| Doors, Latches & Locks NHTSA category: LATCHES/LOCKS/LINKAGES | 4 | 0 | 0 | 0 | 0 |
| CHILD SEAT | 3 | 2 | 0 | 10 | 0 |
| ELECTRICAL SYSTEM,ENGINE | 3 | 0 | 1 | 0 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 3 | 1 | 0 | 0 | 0 |
| EXTERIOR LIGHTING | 3 | 1 | 0 | 0 | 0 |
| Tires NHTSA category: TIRES | 3 | 0 | 0 | 0 | 0 |
| Visibility & Wipers NHTSA category: VISIBILITY/WIPER | 3 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,EXTERIOR LIGHTING | 2 | 0 | 0 | 0 | 0 |
| ELECTRONIC STABILITY CONTROL (ESC) | 2 | 0 | 0 | 0 | 0 |
| Seats & Restraints NHTSA category: SEATS | 2 | 0 | 0 | 0 | 0 |
| STEERING,ELECTRICAL SYSTEM | 2 | 0 | 0 | 0 | 0 |
| STEERING,SUSPENSION,UNKNOWN OR OTHER | 2 | 1 | 0 | 1 | 0 |
| STRUCTURE,UNKNOWN OR OTHER | 2 | 0 | 0 | 0 | 0 |
| Suspension NHTSA category: SUSPENSION | 2 | 1 | 0 | 0 | 0 |
| Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL | 2 | 1 | 0 | 3 | 0 |
| VISIBILITY,VISIBILITY/WIPER | 2 | 0 | 0 | 0 | 0 |
| AIR BAGS,SEAT BELTS,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| CHEST CLIP, BUCKLE, HARNESS | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SEATS | 1 | 0 | 0 | 1 | 0 |
| ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| EQUIPMENT,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE | 1 | 0 | 0 | 0 | 0 |
| SEAT BELTS,STRUCTURE,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| SEAT BELTS,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| SERVICE BRAKES, HYDRAULIC,AIR BAGS | 1 | 1 | 0 | 1 | 0 |
| SERVICE BRAKES, HYDRAULIC,EXTERIOR LIGHTING | 1 | 0 | 0 | 0 | 0 |
| SERVICE BRAKES,ENGINE | 1 | 0 | 0 | 0 | 0 |
| STEERING,SUSPENSION | 1 | 1 | 0 | 0 | 0 |
| STEERING,WHEELS,ELECTRONIC STABILITY CONTROL (ESC) | 1 | 0 | 0 | 0 | 0 |
| STRUCTURE,LATCHES/LOCKS/LINKAGES | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,POWER TRAIN,ELECTRICAL SYSTEM | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,POWER TRAIN,WHEELS | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,WHEELS | 1 | 0 | 0 | 0 | 0 |
| TIRES,WHEELS | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| Visibility / Glass NHTSA category: VISIBILITY | 1 | 0 | 0 | 0 | 0 |
| WHEELS,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2015 Toyota Sienna
In official NHTSA consumer records, the most frequently cited issue area for the 2015 Toyota Sienna is Body & Structure, appearing in 64 records (27.8% of submitted filings).
Secondary reported categories include Electrical System (44) and Brakes & Traction Control (21).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 230 consumer defect complaints and 6 safety recall campaigns for the 2015 Toyota Sienna.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Among consumer complaint records on file with NHTSA for the 2015 Toyota Sienna, 17 filings cite a crash, 7 cite smoke or fire, and 13 report one or more injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.