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.
What the fix does
This page covers 7 recalls, 161 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2014 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
The dominant pattern in 2014 Toyota Sienna complaints centers on structural issues, which draw the largest share of reports by a wide margin. Owners most commonly describe problems with the sliding door system, specifically the power sliding doors failing to detect obstructions and continuing to close or open under power, sometimes causing contact with people or objects. A secondary cluster of complaints involves the airbag system, where owners report warning lights illuminating or the system not functioning as expected. Vehicle speed control generates the next-highest complaint volume, with owners describing unintended acceleration episodes at various speeds, typically requiring hard braking to bring the vehicle to a stop. A smaller but notable thread running through the complaint set involves odometer discrepancies discovered after private-party purchases, where actual mileage turned out to be significantly higher than what was represented at the time of sale.
161
Total Complaints
6
Crash-Related
2
Fire-Related
3
With Injuries
By System
The 2014 Toyota Sienna has 7 recalls, the most serious involving a passenger-side airbag inflator that can explode and send metal fragments into the cabin, a fuel line that can leak near ignition sources and cause a fire, and a shift cable that can separate and cause the vehicle to move in an unintended direction.
Several recalls apply specifically to wheelchair van conversions built on the Sienna platform: rear brake hoses on certain conversions may be too short and rub against the rear axle until they fail, while separate conversion work by two different mobility upfitters may have used incorrect brake line fittings that allow fluid to leak and reduce stopping power. On the doors, a power sliding door that fails to open when commanded can later swing open on its own, including while the vehicle is moving. There is also a transmission concern on a narrow production window of vehicles where a damaged shift cable sleeve can cause the gear indicator to show the wrong position, leaving the driver unaware of which gear is actually engaged.
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
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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 →
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 extension fittings may be installed incorrectly, potentially causing brake fluid to leak and reduce braking power.
What the fix does
A BraunAbility dealer will inspect the brake line connections and install an adapter fitting if needed, then bleed the brake system.
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 passenger front air bag inflator may explode due to propellant degradation from long-term exposure to high humidity, temperature, and temperature cycling.
What the fix does
Dealers will replace the front passenger air bag inflator or air bag assembly depending on your vehicle model.
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
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.
At a glance
What can fail
The protective sleeve around the transmission shift control cable may be damaged from assembly. This can cause the cable to bind or separate when shifting gears, resulting in the wrong gear being selected.
What the fix does
Dealers will inspect the transmission shift control cable and replace it if needed, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
