Is the 2015 Toyota Sienna a bad year?
229 owner complaints to NHTSA. Engine and transmission complaints are in line with other Sienna years.
Keep it
Engine and transmission complaints for the 2015 Toyota Sienna are in line with other Sienna years. Body structure and electrical system stand out for this year: see below.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2015 Sienna owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 23,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| Body structureSTANDS OUT | 61 (27%) | 17k–42k miles · around this mileage | — |
| Electrical systemSTANDS OUT | 44 (19%) | 8k–36k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Brakes | 18 (8%) | 17k–51k miles · around this mileage | Brake pad replacement (one axle) $115–$390 · Brake pads and rotors replacement (one axle) $200–$1,084 |
| Engine | 16 (7%) | too few with a mileage | — |
| Wheels | 14 (6%) | too few with a mileage | — |
| Steering | 11 (5%) | too few with a mileage | — |
| Air bags | 9 (4%) | too few with a mileage | — |
| Transmission and drivetrain | 9 (4%) | too few with a mileage | — |
| Seat belts | 8 (3%) | too few with a mileage | — |
| Suspension | 8 (3%) | too few with a mileage | — |
| Fuel system | 7 (3%) | too few with a mileage | — |
| Exterior lighting | 6 (3%) | too few with a mileage | — |
| Visibility and wipers | 6 (3%) | too few with a mileage | — |
| Latches and locks | 5 (2%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 23,000 miles. Not a quote.
What owners reported alongside their complaints
Of 229 complaints: 16 mention a crash · 7 mention a fire · 12 report an injury · 12 say the car was towed.
15 complaints were filed in the last 12 months, the newest in Oct 2026.
Counts of what owners wrote in their complaints, not verified by anyone.
Recalls for the 2015 Toyota Sienna: 6
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. 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.
The brake lines may have incorrect tube nut fittings installed, which may cause a pressure drop within the braking system. The reduction in the braking system pressure may cause a loss of braking power in the rear braking system, increasing the risk of crash.
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 unexpectedly, possibly while the vehicle is moving. If door opens while the vehicle is moving, there would be an increased risk of injury to the vehicle occupants.
During reassembly of the interior after the overhead entertainment system installation, a trim panel securing clip may have been reused instead of being replaced. If the clip was damaged during the entertainment system installation, in the event of a side curtain air bag deployment, the trim panel may detach and strike one of the vehicle occupants, increasing the risk of injury.
During reassembly of the interior after the overhead entertainment system installation, a trim panel securing clip may have been reused instead of being replaced. If the clip was damaged during the entertainment system installation, in the event of a side curtain air bag deployment, the trim panel may detach and strike one of the vehicle occupants, increasing the risk of injury.
In the event of a crash that necessitates the deployment of the curtain shield airbag (CSA), the second row overhead assist grips may detach. If the assist grip detaches due to CSA deployment, the grip may strike a vehicle occupant, increasing the risk of injury.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Toyota: 175
Repair instructions Toyota sent its dealers for symptoms seen in the shop on the 2015 Toyota Sienna. Ask a dealer or mechanic for a bulletin by its number.
Non-electric water pump leak inspection and diagnostic tips for some 2008 - 2025 model year Toyota vehicles
Some vehicles may experience a "Noise" or Abnormal Operation? condition from the rear differential front coupling
Some vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2610 (ECM/PCM Engine Off Timer Performance) present
The subject vehicles are equipped with an oxygen sensor which could experience wire degradation inside the oxygen sensor wiring harness caused by vehicle…
Neighbouring years
2014 Sienna: 163 complaints, keep it · 2016 Sienna: 76 complaints, keep it.
Every Toyota Sienna year
2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · All Sienna years side by side
Other Toyota models: Toyota 4Runner · Toyota Avalon · Toyota C-HR · Toyota Camry · Toyota Camry Hybrid · Toyota Camry Solara · Toyota Celica · Toyota Corolla · Toyota Corolla Cross · Toyota Corolla Matrix · Toyota Echo · Toyota FJ Cruiser · Toyota Grand Highlander · Toyota Highlander · Toyota Highlander Hybrid · Toyota Matrix · Toyota Prius · Toyota Prius c · Toyota Prius v · Toyota RAV4 · Toyota RAV4 Hybrid · Toyota RAV4 Prime · Toyota Sequoia · Toyota Sienna Hybrid · Toyota Tacoma · Toyota Tundra · Toyota Venza · Toyota Venza Hybrid · Toyota Yaris. All makes and models.
Questions
Is the 2015 Toyota Sienna a bad year?
229 owner complaints to NHTSA. Engine and transmission complaints are in line with other Sienna years. At 23,000 miles the tool says: Keep it.
What are the most common problems with the 2015 Toyota Sienna?
By owner complaints to NHTSA: body structure (61), electrical system (44), brakes (18), engine (16), wheels (14).
How many recalls does the 2015 Toyota Sienna have?
6 recall campaigns list this model year: Brakes (NHTSA 19V-553), Brakes (NHTSA 19V-410), Body structure (NHTSA 16V-858), Body structure (NHTSA 15V-240) and more. A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.