Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 231 complaints with NHTSA about the 2015 Toyota Sienna, and it carries 6 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Structure | 49 | 21% |
| Unknown or other | 30 | 13% |
| Electrical system | 21 | 9% |
| Engine | 9 | 4% |
| Power train | 9 | 4% |
| Service brakes | 9 | 4% |
| Wheels | 9 | 4% |
| Electrical system | 7 | 3% |
| Air bags | 7 | 3% |
| Steering | 5 | 2% |
Verbatim from NHTSA complaint records, trimmed for length.
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 rec
NHTSA complaint: Unknown or other
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 inspe
NHTSA complaint: Engine
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
NHTSA complaint: Engine
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
NHTSA complaint: Tires
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
NHTSA complaint: Steering
Rain water leaking into the parked vehicle on the driver and passenger seat belts, potentially weakening the belts and creating odor.
NHTSA complaint: Seat belts
On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT
NHTSA complaint: Power train
On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT
NHTSA complaint: Power train
NHTSA lists 6 recall campaigns for the 2015 Toyota Sienna. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
Braun Corporation (Braun) is recalling certain 2014-2019 Toyota Sienna mobility van conversions. The brake lines may have incorrect tube nut fittings installed, which may cause a pressure drop within the braking system.
Risk: The reduction in the braking system pressure may cause a loss of braking power in the rear braking system, increasing the risk of crash.
Fix: Braun has notified owners, and dealers will install an adaptor to correct the issue, free of charge. The recall began June 25, 2019. Owners may contact Braun customer service at 1-800-488-0359.
Vantage Mobility International, LLC (Vantage) is recalling certain 2012-2018 AMS Genesis wheelchair vans, built on a Toyota Sienna vehicles. The rubber brake hoses that attach to the rear wheel assembly may be too short, causing them to rub against the rear axle trailing arm.
Risk: The contact may cause failure of the rear brake hoses, resulting in a loss of vehicle control and reduced braking ability, increasing the risk of a crash.
Fix: Vantage will notify owners, and dealers will install a set of rear brake hoses that will provide the proper clearance, free of charge. The recall began December 16, 2019. Owners may contact Vantage
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2011-2016 Toyota Sienna minivans manufactured January 4, 2010, to August 12, 2016. If the power sliding door is unable to be opened when commanded, such as if the door is frozen shut, the door may subsequently open un
Risk: If door opens while the vehicle is moving, there would be an increased risk of injury to the vehicle occupants.
Fix: Toyota will notify owners, and dealers will replace the junction block, rear sliding door wire harnesses, and install two sub wire harnesses, free of charge. The recall began on July 28, 2017. Owner
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2015 Sienna vehicles manufactured September 2, 2014, to November 25, 2014. In the event of a crash that necessitates the deployment of the curtain shield airbag (CSA), the second row overhead assist grips may detach.
Risk: If the assist grip detaches due to CSA deployment, the grip may strike a vehicle occupant, increasing the risk of injury.
Fix: Toyota will notify owners, and dealers will modify the headliner near the second row overhead assist grip, free of charge. The recall began on January 15, 2015. Owners may contact Toyota customer se
| Reliability raw | 56 | average |
|---|---|---|
| Longevity est. | 72 | good |
| Maintenance | 76 | good |
| Depreciation | 92 | excellent |
| Performance | 67 | good |
| Efficiency | 36 | below average |
| Safety | 93 | excellent |
Percentile ranks against other minivans & vans in the catalog.
What stands behind each score for this car:
Owners have filed 231 complaints with NHTSA for this model-year, and structure is the most reported area with 49 of them (21%). There are 6 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 56/100 (average) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 72/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2015 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 70/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.