Car · Toyota problems

2015 Toyota Sienna problems

233 owner complaints filed with NHTSA for the 2015 Toyota Sienna. The most reported area is body and structure (26% of them). NHTSA also lists 143 service bulletins and 6 recall campaigns.

Counts are what owners told NHTSA, as filed. NHTSA does not confirm each report, and a complaint is not proof of a cause. Injuries: 28. Deaths: 0.

Complaints by area

Each bar is the share of this model year's 233 complaints that name that area. A complaint can name more than one area, so the shares add up to more than 100%.

• Body and structure61 · 26%
• Electrical system44 · 19%
• Other or unknown44 · 19%
• Service brakes18 · 8%
• Engine and engine cooling16 · 7%
• Wheels14 · 6%
• Power train (transmission and drive)12 · 5%
• Steering11 · 5%

15 smaller areas not shown (70 complaints in total).

Do not compare models by these numbers. NHTSA has no sales count for each model, so a model with more complaints may just have sold more cars. Use them to see which areas owners write about, not to rank cars.

Service bulletins

NHTSA's database lists 143 repair bulletins from Toyota for the 2015 Toyota Sienna. A bulletin is a repair instruction sent to dealers. It is not a recall and does not mean your car is covered. The 8 newest:

1. T-SB-0055-24 Rev2Received February 11, 2026

   Some 2005 - 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present.

2. T-SB-0058-23 Rev1Received July 10, 2025

   Electrical system

   The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks.

3. T-SB-0035-24 Rev2Received January 9, 2025

   Body and structure

   Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere.

4. T-SB-0038-24 Rev2Received January 9, 2025

   Body and structure

   To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover.

5. T-SB-0039-24 Rev2Received January 9, 2025

   Body and structure

   The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds.

6. T-SB-0062-23 Rev2Received January 9, 2025

   Body and structure

   Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc.

7. T-SB-0103-20 Rev1Received July 23, 2024

   Engine and engine cooling

   Updated non-electric water pump leak inspection and diagnostic tips for some 2008 - 2025 model year Toyota vehicles.

8. T-PANT-2024-004-Received April 15, 2024

   Engine and engine cooling

   This is to advise of various price adjustments that will affect Toyota Genuine Motor Oil and Long Life Coolant, effective March 1, 2024.

Recalls

NHTSA lists 6 recall campaigns for the 2015 Toyota Sienna. Recall repairs are free at a Toyota dealer. The 3 to look at first:

1. 16V858000November 29, 2016

   Structure

   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.

2. 15V240000April 22, 2015

   Structure

   During reassembly of the interior after the overhead entertainment system installation, a trim panel securing clip may have been reused instead of being replaced.

3. 19V553000July 25, 2019

   Service brakes, hydraulic

   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.

See all 6 recalls for the 2015 Toyota Sienna, or check your VIN below to see which are open on your car.

Common repairs in this area (not a diagnosis)

These are repair jobs that sit in the areas owners report most. A complaint may need a diagnosis first: the same symptom can come from many causes, and a serious one such as engine failure is not fixed by a cheap part. They are not a forecast of what your Sienna will need. Ranges are US estimates for all makes.

Start with a diagnosis

• Diagnostic scan (check engine light)$55 to $250

Body and structure 61 complaints · 26%

No repair price here: this area usually needs a diagnosis first. A diagnostic scan (check engine light) runs $55 to $250.

Electrical system 44 complaints · 19%

• Battery replacement$150 to $470
• Alternator replacement$360 to $930
• Starter replacement$280 to $740
• Battery cable replacement$100 to $340

Service brakes 18 complaints · 8%

• Brake pad replacement (front)$190 to $400
• Brake rotors and pads (front)$320 to $790
• Brake pad replacement (rear)$180 to $420
• Brake caliper replacement (one wheel)$240 to $590
• Brake fluid flush$75 to $180

Wheels 14 complaints · 6%

• Wheel bearing / hub replacement (one wheel)$240 to $750
• Tire rotation and balance$40 to $140

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Check your VIN

Complaints and bulletins cover a whole model year. Only the VIN shows what is open on your car.

By VIN By year, make and model

VIN (17 characters, on the dashboard by the windshield or the driver door jamb)

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Recall and complaint data comes from NHTSA, the US government's vehicle safety agency, and is cached for up to a day. Recall repairs at a dealer are free. A recall that is not listed may not apply to your car or may not be filed yet. Check nhtsa.gov/recalls too.

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2015 Toyota Sienna: questions

What are the most common problems on the 2015 Toyota Sienna?

Of the 233 owner complaints filed with NHTSA for the 2015 Toyota Sienna, 61 (26%) name body and structure, and 44 (19%) name electrical system. A complaint can list more than one area, so the shares add up to more than 100%. These are owner reports, not proven causes.

Is the 2015 Toyota Sienna reliable?

These numbers cannot say. NHTSA complaints have no sales count to compare against, so a high number on one model does not mean it fails more than another. Use them to see which areas owners write about, then check your own VIN for open recalls.

Do these complaints include crashes or fires?

Owners marked 17 of the 233 complaints as involving a crash and 7 as involving a fire. They also reported 28 injuries and 0 deaths. NHTSA records these as the owner reports them and does not confirm each one.

How many recalls does the 2015 Toyota Sienna have?

NHTSA lists 6 recall campaigns for the 2015 Toyota Sienna. Recall repairs are free at a Toyota dealer. Enter your VIN to see which ones are open on your car.

What is a service bulletin?

A service bulletin is a repair instruction a maker sends to its dealers. It is not a recall, and it does not mean your car is covered. NHTSA lists 143 repair bulletins for the 2015 Toyota Sienna.

More

• 2012 Sienna problems
• 2011 Sienna problems
• 2015 recalls
• All Toyota recalls
• Toyota problems by model
• Check-engine codes

Sources

• NHTSA complaint and technical service bulletin files, checked October 29, 2026
• NHTSA recalls

Complaint, bulletin and recall counts come from NHTSA as filed. Repair prices are estimates from our own ranges. Not a repair shop, estimates only.