2014 Toyota Sienna Problems: 9 Known Issues
2014 model year · 5,485+ owner reports · Updated November 2026
According to Au7o's analysis of 5,485+ owner reports, the 2014 Toyota Sienna has 9 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. The most commonly reported issue is Power Sliding Door Malfunction with 3,200 owner reports. Across all issues with published estimates, repair costs range from $50 to $3,800. DIY maintenance guides at au7o.io.
2014 · All trims · All engines
Choose the year and equipment for your written issues and visual request.
No email neededHow interest is saved
Interest applies to the selected vehicle and configuration; it is not a reservation. Voting stores a first-party identifier for up to 180 days to prevent repeat votes. No account or email is needed. Clearing cookies or using another device may count separately. Privacy
Visual coming soon
Your interest helps us choose what to build next.
Visual Known Issues · Coming soon
$7.99/month plus taxes at launch on January 1, 2027 · No payment today
All 9 Known Issues
Join 700+ subscribers following Au7o for vehicle insights and updates.
Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.
Other Toyota Models
Frequently Asked Questions
What are the most common Toyota Sienna problems?
According to Au7o's analysis of 5,485+ owner reports, the 2014 Toyota Sienna has 9 documented issues. The most frequently reported are: Power Sliding Door Malfunction, 3.5L 2GR-FE Oil Leak from VVT-i System and Timing Cover, 2GR-FE V6 Excessive Oil Consumption. None are rated critical, but regular maintenance is recommended.
Is the Toyota Sienna reliable?
The 2014 Toyota Sienna has 9 known issues documented across 5,485+ owner reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Toyota Sienna problems?
Repair costs for known Toyota Sienna issues range from $50 to $3,800, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2004-2016 Toyota Sienna Power Sliding Door Malfunction?
Power sliding doors on 2nd and 3rd gen Siennas are prone to cable fraying, motor failure, and latch mechanism issues. Doors may refuse to open/close, reverse mid-travel, or make grinding noises. The cable assembly inside the door wears and eventually snaps. Repairs typically run $400-$1,500. Severity: medium.
What is the 2007-2016 Toyota Sienna 3.5L 2GR-FE Oil Leak from VVT-i System and Timing Cover?
The 3.5L 2GR-FE V6 commonly develops oil leaks from the VVT-i oil line, timing cover, and valve cover gaskets. The rubber section of the VVT-i oil supply hose degrades over time and can leak (Toyota covered certain 2007-2010 Siennas under Limited Service Campaign 90K, now expired… Repairs typically run $50-$800. Severity: medium.
What is the 2007-2016 Toyota Sienna 2GR-FE V6 Excessive Oil Consumption?
Some owners and repair shops report 2007-2016 Siennas with the 3.5L 2GR-FE V6 using enough oil that it has to be topped up between changes. One technician described a 2013 Sienna using about 1 quart every 300 miles. One 2007 Sienna that smoked at startup was found by the dealer t… Repairs typically run $200-$3,800. Severity: medium.
What is the 2011-2020 Toyota Sienna A/C Refrigerant Leaks Cause Warm Air: Check Rear A/C Line Joints Before the Evaporator?
On 2011-2020 Siennas, A/C that slowly stops cooling is usually caused by a refrigerant leak, and the front evaporator is not always the source. On vans with rear A/C, the refrigerant lines that run to the back of the van have extra joints that can leak. Toyota bulletin T-TT-0239-… Repairs typically run $800-$2,200. Severity: medium.
What is the 2011-2016 Toyota Sienna 2GR-FE Water Pump Bearing Failure and Coolant Leak?
The belt-driven water pump on the 2GR-FE V6 (used 2007-2016) wears its internal bearing and seal, typically around 80,000-120,000 miles. Owners first hear a screech or grind for a few days, then the pump weeps coolant from its drain (weep) hole. Because the pump drives off the ac… Repairs typically run $400-$800. Severity: medium.
What is the 2011-2020 Toyota Sienna A/C Refrigerant Flow Sensor Drift Forces Whole-Compressor Replacement?
XL30 Siennas lose cooling because the refrigerant flow sensor integrated into the A/C compressor drifts out of its valid voltage window after several years. The system reads the out-of-range signal as a fault and either refuses to engage the compressor clutch or cycles cooling on… Repairs typically run $700-$2,200. Severity: medium.
What is the 2004-2025 Toyota Sienna Sliding Door Track and Rocker Panel Corrosion Under the Door Sills?
The lower sliding-door rail and the seam where the rocker panel meets the sill trap salt, grit and water on Siennas run in the salt belt. Rust starts inside the lower door track and in the rocker seam under the sliding doors, then perforates outward and can eat into the structura… Repairs typically run $300-$2,500. Severity: medium.
What is the 2011-2020 Toyota Sienna Power Liftgate Strut Failure and Hatch Misalignment / Twisting?
Third-generation Siennas with the power liftgate use a power back door drive unit together with gas lift supports on each side of the hatch. When a support weakens or the drive unit drags, the gate is forced against uneven resistance and can twist, leaving a wide gap on one side… Repairs typically run $350-$1,400. Severity: medium.
What is the 2011-2020 Toyota Sienna EVAP System Leak-Detection / Vapor Canister Fault (Check Engine Light, Hard Refueling)?
Third-generation Siennas commonly throw EVAP (evaporative emissions) faults as the system ages. Failure points include the canister vent solenoid/VSV sticking, the leak-detection pump and reference orifice, the purge valve, and a worn or loose gas cap. Beyond the check engine lig… Repairs typically run $150-$500. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.