NHTSA (USA)Critical
At a glance
What can fail
The rubber brake hoses connected to the rear wheels may be too short, causing them to rub against the rear axle trailing arm.
This page covers 8 recalls, 225 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2015 Toyota Sienna.
19 mpg combined
12.4 L/100km
Minivan - 4WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
5/5 Overall
NHTSA 5-Star Safety Rating
For the 2015 Sienna, the dominant complaint category by a wide margin is structure, which in this vehicle largely centers on the sliding door system. Owners frequently describe the power sliding doors rolling open or failing to latch properly while the vehicle is in motion, and a recurring pattern involves the shifter releasing from park without the ignition on, no key present, and the brake pedal not depressed, allowing the van to roll unexpectedly. Electrical complaints are the second most-reported area, covering a range of issues with power door components and related controls. A smaller but notable group of owners describes the electric power steering feeling notchy or sticky, particularly through sweeping turns, where the wheel can resist returning to center and require noticeable physical effort to straighten out.
225
Total Complaints
17
Crash-Related
7
Fire-Related
13
With Injuries
By System
The 2015 Toyota Sienna has 8 recalls, the most serious being a fuel delivery pipe in the engine compartment that can leak fuel and create a fire risk near ignition sources.
Two recalls affect mobility van conversions of this vehicle and involve brake line issues: on certain AMS Genesis wheelchair van conversions, rear brake hoses that are too short can rub against the axle and eventually fail, and on certain Braun mobility conversions, incorrect brake line fittings can cause a pressure drop that reduces rear braking power. Both raise the risk of a crash. On the airbag side, the second-row overhead grab handles can break free when the curtain airbag deploys in a crash and strike a passenger. A related issue on vehicles with dealer-installed overhead entertainment systems involves interior trim panel clips that may not have been replaced during installation, leaving panels loose enough to come off during a curtain airbag deployment and hit an occupant. There is also a power sliding door concern: if the door is stuck, such as when frozen, it can later swing open on its own while the vehicle is moving.
At a glance
What can fail
The rubber brake hoses connected to the rear wheels may be too short, causing them to rub against the rear axle trailing arm.
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Driver Assistance
Ratings from NHTSA's New Car Assessment Program (NCAP). Based on 2 tested variants; worst-case ratings shown.
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
What the fix does
Dealers will install a new set of rear brake hoses that provide proper clearance between the hoses and axle.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Brake line tube nut fittings may be incorrect, causing pressure to drop in the braking system.
What the fix does
Dealers will install an adaptor to correct the fitting issue at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The power sliding door may freeze shut and become unable to open when commanded. Once thawed or unfrozen, the door could open unexpectedly, potentially while the vehicle is moving.
What the fix does
Dealers will replace the junction block, rear sliding door wire harnesses, and install two sub wire harnesses at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A trim panel securing clip in the overhead area may not be properly secured after aftermarket entertainment system installation, as the original clip may have been reused instead of replaced during reassembly.
What the fix does
Dealers will replace the trim panel securing clip at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A trim panel securing clip in the overhead entertainment system may not be properly fastened because a worn clip was reused instead of replaced during installation.
What the fix does
Dealers will replace the trim panel securing clip at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
During a collision, the curtain shield airbag inflates with force that can push against the headliner. In hot weather, this force may cause the left and/or right second row overhead assist grip to detach from its mounting brackets. A detached grip could strike an occupant during a crash.
What the fix does
Dealers will modify the headliner near the second row overhead assist grips to prevent detachment.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
In a crash that deploys the curtain shield airbag, the second row overhead assist grips may detach from the headliner.
What the fix does
Dealers will modify the headliner near the second row overhead assist grips to secure them.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Fuel may leak from one of the fuel delivery pipes located in the engine compartment.
What the fix does
Dealers will replace any suspect fuel delivery pipes at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
