2014 Toyota SIENNA problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
163 owner complaints analyzed
6 distinct recall campaigns
48,212 mi median reported failure mileage
Scope: 2014 model year. Data snapshot: . 104 complaints include usable failure mileage.
Most common problems
Structure:Body is the most frequently named component, appearing in 35 of 163 complaints (21.5%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 16 | 9.8% |
| Transmission and shifting | 6 | 3.7% |
| Steering behavior | 6 | 3.7% |
| Electrical and battery issues | 3 | 1.8% |
| Fuel system concerns | 2 | 1.2% |
| Engine operation | 1 | 0.6% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Structure:Body | 35 |
| Unknown Or Other | 27 |
| Air Bags | 13 |
| Electrical System | 13 |
| Engine | 11 |
| Fuel/Propulsion System | 11 |
| Service Brakes | 10 |
| Vehicle Speed Control | 10 |
Structure:Body: 35; Unknown Or Other: 27; Air Bags: 13; Electrical System: 13; Engine: 11; Fuel/Propulsion System: 11; Service Brakes: 10; Vehicle Speed Control: 10
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 33 |
| 25,000 to 49,999 | 19 |
| 50,000 to 74,999 | 23 |
| 75,000 to 99,999 | 15 |
| 100,000 to 149,999 | 9 |
| 150,000 and above | 5 |
Under 25,000: 33; 25,000 to 49,999: 19; 50,000 to 74,999: 23; 75,000 to 99,999: 15; 100,000 to 149,999: 9; 150,000 and above: 5
Under 25,000 miles has the most reports with usable mileage (33). 59 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2014 | 10 |
| 2015 | 10 |
| 2016 | 11 |
| 2017 | 44 |
| 2018 | 30 |
| 2019 | 14 |
| 2020 | 10 |
| 2021 | 5 |
| 2022 | 10 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 6 |
| 2026 | 6 |
2014: 10; 2015: 10; 2016: 11; 2017: 44; 2018: 30; 2019: 14; 2020: 10; 2021: 5; 2022: 10; 2023: 4; 2024: 3; 2025: 6; 2026: 6
Pattern summary
Structure:Body leads the component reports. Braking behavior appears in 16 complaint narratives. Transmission and shifting appears in 6 complaint narratives. Steering behavior appears in 6 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10628681 · 2014-08-27 (August 27, 2014)
TL - THE CONTACT OWNS A 2014 TOYOTA SIENNA. THE CONTACT WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V414000. THE CONTACT STATED WHILE THE KEY WAS IN THE IGNITION HE TURNED IT ON FOR THE POWER TO COME ON BUT THE ENGINE WAS OFF. THE CONTACT MENTIONED HE WAS ON A HILL AND PUT THE VEHICLE IN THE REVERSE POSITION WHILE THE ENGINE WAS STILL OFF AND THE VEHICLE BEGAN TO ROLL BACKWARDS. THE CONTACT STATED HE WAS UNABLE TO STOP THE VEHICLE WHEN APPLYING THE BRAKES. THE CONTACT MENTIONED THE VEHICLE STOPPED ONCE IT HIT A FLAT SURFACE AND HE TURNED THE V…
Owner-reported narrative. 6,000 miles reported. Look up ODI 10628681 at NHTSA ↗
Owner report 10724247 · 2015-06-09 (June 9, 2015)
ON SATURDAY, JUNE 6, 2015, MY 2014 TOYOTA SIENNA LIMITED AUTOMATICALLY BRAKE WITH VERY SIGNIFICANT FORCE WHILE THE CRUISE CONTROL WAS ENGAGED AT APPROXIMATELY 45 MPH. NO VEHICLES OR OBSTACLES WERE AHEAD AND I WAS DRIVING ON A STRAIGHT AND RELATIVELY LEVEL STREET THAT HAS A 45 MPH SPEED LIMIT. THIS PROBLEM ALSO OCCURRED MANY, MANY TIMES IN THE FIRST SEVERAL MONTHS AFTER PURCHASING THIS VEHICLE NEW IN APRIL 2014. I REPORTED THIS PROBLEM TO MOLLE TOYOTA, KANSAS CITY, MISSOURI WHEN IT FIRST HAPPENED AND AT THE 5,000 AND 10,000 SERVICES AND TH…
Owner-reported narrative. 19,100 miles reported. Look up ODI 10724247 at NHTSA ↗
Owner report 10732331 · 2015-07-06 (July 6, 2015)
AT APPROXIMATELY 2000 MILES ON THE ODOMETER THE TRANSMISSION IN MY 2014 TOYOTA SIENNA FAILED. IT WAS REPLACED WITH A NEW TRANSMISSION, AND THAT TRANSMISSION SUBSEQUENTLY FAILED AT 10,800 MILES. BOTH TIMES, IT CAME WITHOUT WARNING, AND THE SECOND TIME WAS AT HIGHWAY SPEEDS. NO DAMAGE TO THE VEHICLE EVER PRECEDED THESE FAILURES. TOYOTA AND THE DEALERSHIP CLAIM TO NOT HAVE ANY EXPLANATION FOR THIS FAILURE.
Owner-reported narrative. 2,000 miles reported. Look up ODI 10732331 at NHTSA ↗
Owner report 11002910 · 2017-07-03 (July 3, 2017)
MY CAR WAS STOPPED AT RED LIGHT IN UPHILL AND TRIED TO TAKE MY FOOT OFF BRAKE TO GO ON GREEN LIGHT, MY CAR STARTED ROLLING BACKWARD BADLY IN DRIVE MODE. IT WAS ABOUT 20 DEGREE INCLINE. I BELIEVE THAT ALL AUTOMATIC TRANSMISSION SHOULD NOT ROLL BACKWARD. I BROUHT IT UP TO ONE OF THE TOYOTA SERVICE ADVISOR WHEN I TOOK MY CAR THERE FOR SERVICE, HE SAID THAT IS NORMAL WHEN CAR IS IN DRIVE MODE. I BELIEVE THIS IS A CRITICAL SAFETY ISSUE. IT WAS ROLLED BACK ABOUT 1 FOOT BEFORE I HIT THE GAS PEDAL. I ALMOST GOT AN ACCIDENT. PLEASE INVESTIGATE TH…
Owner-reported narrative. Look up ODI 11002910 at NHTSA ↗
Owner report 10863265 · 2016-05-04 (May 4, 2016)
THERE IS A RUBBING NOISE IN THE STEERING WHEEL WHICH IS ANNOYING AND THE DEALER REFUSED TO RECTIFY IT.
Owner-reported narrative. Look up ODI 10863265 at NHTSA ↗
Owner report 10970928 · 2017-04-06 (April 6, 2017)
I PURCHASED THIS CAR ON JANUARY 1, 2017 FROM A DEALERSHIP IN SUNNYVALE AS A CERTIFIED TOYOTA. I NOW HAVE 11K MILES AND THE FROM TIRES ARE COMPLETELY BALD. I DON'T UNDERSTAND HOW THIS COULD HAPPEN. AFTER SEARCHING THE INTERNET I FOUND A LOT OF CONSUMERS COMPLAINING ABOUT THE SIENNA VAN FRONT WHEEL DRIVE TIRES WEARING BALD IN UNUSUALLY LOW MILES. I BELIEVE THE SUSPENSION, STEERING OR SOME OTHER ENGINEERING ISSUE IS FLAWED. THERE IS NO REASON WITH 5K ROTATION AND PROPER ALIGNMENT THAT THE SIENNA SHOULD BE EATING TIRES BALD AT 1/3 OF NORMAL TI…
Owner-reported narrative. Look up ODI 10970928 at NHTSA ↗
Owner report 10968886 · 2017-03-28 (March 28, 2017)
AUTOMATIC DOOR STOPPED MOVING AND I COULD SMELL A BURNING ELECTRICAL ODOR. AUTOMATIC DOORS NO LONGER WORK.
Owner-reported narrative. 30,000 miles reported. Look up ODI 10968886 at NHTSA ↗
Owner report 11162105 · 2018-12-17 (December 17, 2018)
VEHICLE STOPPED ABRUPTLY WITH A SHAKE WHILE REDUCING SPEED AT A TRAFFIC SIGNAL. I WAS IN THE MIDDLE OF THE ROAD. A MILD BURNING SMELL CAME OUT FROM THE HOOD. THE CAR WAS SERVICED ONE MONTH BACK AND AS PART OF IT THEY DID 128 POINT( DO NOT REMEMBER EXACT NUMBER ) AND ALL REPORTED ISSUES WERE FIXED. AROUND $1000/- WAS SPENT ON THE CAR. SINCE BATTERY WAS JUST 1 YEAR OLD, I DID NOT EXPECT A PROBLEM WITH THE BATTERY AS WELL. STILL I SWITCHED OFF ALL LIGHTS AND TRIED TO RESTART. THERE WAS NO FURTHER RESPONSE FROM THE VEHICLE. I WAS BLOCKING TRAFFIC F…
Owner-reported narrative. 46,000 miles reported. Look up ODI 11162105 at NHTSA ↗
Owner report 11104672 · 2018-06-29 (June 29, 2018)
RECENTLY, AT APPROXIMATELY 80,000 MILES, THE UPPER HINGE OF THE FUEL FILLER DOOR (THE DOOR COVERING THE GAS TANK ACCESS) FAILED. THIS APPEARS TO HAVE BEEN CAUSED BY PRESSURE EXERTED ON THE DOOR BY THE SAFETY SWITCH GOVERNING THE DRIVER SIDE SLIDING PASSENGER DOOR. THIS IS A KNOWN ISSUE, DOCUMENTED HERE: HTTP://WWW.SIENNACHAT.COM/FORUM/67-PROBLEMS-MAINTENANCE-REPAIR-GEN-3/19274-FUEL-FILLER-DOOR-HINGE-BROKE-ANYONE-ELSE-HAVE-HAPPEN.HTML#. I BROUGHT MY VAN TO MY LOCAL DEALER REPAIR FACILITY, NOVATO TOYOTA, AT APPROXIMATELY 81,000 MILES AND WAS TOLD…
Owner-reported narrative. 80,000 miles reported. Look up ODI 11104672 at NHTSA ↗
Owner report 11748426 · 2026-07-06 (July 6, 2026)
Sluggish start when hot - fuel pump leak into engine when hot, causing starter issues, wears out starter, causes other stress on engine. Common issue in Toyota Siennas. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Owner-reported narrative. Look up ODI 11748426 at NHTSA ↗
Owner report 10937414 · 2016-12-26 (December 26, 2016)
SOMETIMES THE CAR STALLS UPON ACCELERATION. THEN IT SURGES FORWARD. WHEN DRIVING, IT WILL ACCELERATE AT RANDOM. HAD VEHICLE TO DEALER, EVANS TOYOTA IN FORT WAYNE, IN. ON 12/21 & 12/23/2016. THEY SAY IT'S FINE. I DISAGREE. IT'S NOT RIGHT. *TR
Owner-reported narrative. 32,430 miles reported. Look up ODI 10937414 at NHTSA ↗