NHTSA (USA)Critical
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 involving brake and fuel system failures: rear brake hoses on certain mobility van conversions can fail and reduce stopping power, and a fuel delivery pipe in the engine compartment can leak and raise the risk of fire.
The brake concerns cover two distinct issues on mobility conversions. On certain wheelchair van conversions built by Vantage Mobility International, rear brake hoses that are too short can rub against the axle trailing arm until they wear through and lose pressure. On certain Braun mobility van conversions, incorrectly installed tube nut fittings on the brake lines can cause a pressure drop in the rear braking system, again reducing stopping power. Both issues affect converted vehicles rather than standard Siennas.
Several recalls involve interior panels and curtain shield airbags. On certain vehicles built in a narrow production window, the overhead assist grips in the second row can detach from their mounting brackets when the curtain airbag deploys, especially in high ambient temperatures, and the grip can strike an occupant. On Siennas that had aftermarket overhead entertainment systems installed by Southeast Toyota Distributors or Gulf States Toyota, a trim panel securing clip may have been reused after installation rather than replaced; if that clip was damaged during the process, the trim panel can come loose during a curtain airbag deployment and hit an occupant. These entertainment-related trim recalls affect only vehicles with those specific dealer-installed accessories.
There is also a power sliding door concern covering a broader model year range: if the door is blocked from opening, such as when frozen shut
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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 →
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.
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.
