2016 Toyota Sienna Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2016 Toyota Sienna, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Body & structure2631.3%
- Electrical910.8%
- Interior & seats67.2%
- Seat belts67.2%
- Airbags56.0%
- Other / unspecified56.0%
- Exterior lighting44.8%
- Engine44.8%
- Steering44.8%
- Visibility33.6%
- Powertrain (other)33.6%
- Driver assistance33.6%
- Suspension22.4%
- Fuel system11.2%
- Tires & wheels11.2%
- Brakes11.2%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
Our van has recently been having issues with the sliding doors. It has occurred while driving and the warning light as well as the warning for a door open, and the door lights have came on. Right before this occurs you can hear a click sound from the sliding door behind the driver's side as well as when you close the door, you can hear a strange sound when it closes, unlike the passenger side sliding door.
The contact owns a 2016 Toyota Sienna. The contact stated that the driver’s side electric sliding door failed to properly open and close, and occasionally abruptly closed, causing a safety hazard to the occupants entering and exiting the vehicle. The cause of the failure has not yet been determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 16V858000 (STRUCTURE). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was unknown.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE STOPPED WITH THE ENGINE STILL RUNNING, THE PASSENGER'S SIDE SLIDING DOOR SLID OPEN INDEPENDENTLY WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AUBURN TOYOTA (800 NEVADA ST, AUBURN, CA 95603) AND REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 16V858000 (STRUCTURE). APPROXIMATELY TWO YEARS LATER, THE FAILURE HAD RECURRED WHILE THE ENGINE WAS TURNED OFF. THE VEHICLE WAS TAKEN BACK TO THE SAME DEALER ON TWO SEPARATE OCCASIONS WHERE THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS ALSO NOTIFIED OF THE FAILURE AND A CASE WAS FILED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 36,512.
OUR 2016 TOYOTA SIENNA SPONTANEOUSLY CAUGHT FIRE WHILE PARKED IN OUR DRIVEWAY AFTER RETURNING FROM A SHORT DRIVE. AFTER PULLING INTO OUR DRIVEWAY AND SHUTTING OFF THE IGNITION, MY WIFE SMELLED SMOKE AS SHE WAS EXITING THE PARKED VEHICLE. THIS SMOKE INTENSIFIED AND QUICKLY ACCELERATED BECOMING AN ENGINE COMPARTMENT FIRE. SHE CALLED FOR ME & THEN CALLED 911; BUT IN THE BRIEF MOMENTS IT TOOK ME TO GRAB A FIRE EXTINGUISHER, THE FIRE FURTHER INTENSIFIED WITH SIZABLE FLAMES ERUPTING OUT FROM AROUND THE HOOD, FRONT GRILL & UNDERNEATH THE VEHICLE. I USED UP 2 FIRE EXTINGUISHERS WITHOUT ANY SIGNIFICANT EFFECT. I DID NOT HAVE ANY PROTECTIVE SAFETY GEAR SO AFTER HEARING SEVERAL SMALL EXPLOSIONS COMING FROM UNDER THE HOOD & FEARING MORE EXPOSURE TO NOXIOUS FUMES, I DECIDED TO ABANDON MY ATTEMPTS TO EXTINGUISH THE FIRE. THE FIRE DEPT. ARRIVED WITHIN A FEW MINUTES AND WERE ABLE TO PUT THE FIRE OUT; HOWEVER, THE FIRE PROGRESSED THROUGH THE INITIAL ATTACK AND ENTERED THE PASSENGER COMPARTMENT CAUSING SEVERE DAMAGE TO THE ENTIRE VEHICLE (SEE ATTACHED PHOTOS). THE SIENNA IS COMPLETELY DESTROYED. FORTUNATELY, THERE WERE NO INJURIES. I HAVE BEEN MADE AWARE OF MULTIPLE INCIDENTS OF ENGINE FIRES IN TOYOTA SIENNAS IN THIS & OTHER CLOSELY RELATED MODEL YEARS (2014-2017). SEE: NHTSA ID NUMBER: 11010601. I CAN ALSO SUPPLY YOU WITH SOME ADDITIONAL MEDIA ACCOUNTS OF OTHER TOYOTA SIENNA ENGINE FIRE REPORTS. OUR SIENNA WAS ROUTINELY MAINTAINED AS PER MANUFACTURER'S RECOMMENDATIONS & WAS LAST SERVICED ON 9/13/2019 (SEE ATTACHED SERVICE RECEIPT). THE VEHICLE HAD APPROX. 35K MILES ON IT & EXHIBITED NO PRIOR SIGNS OF TROUBLE, CHANGE IN PERFORMANCE OR WARNING INDICATOR LIGHTS. WE DID HAVE AN UNRESOLVED PROBLEM WITH AUTOMATIC SIDE DOORS NOT OPERATING PROPERLY AFTER A RECALL REPAIR; HOWEVER, THE LOCAL TOYOTA DEALER SERVICE DEPT. COULD NOT IDENTIFY A PROBLEM AFTER MULTIPLE SERVICE COMPLAINTS.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
The contact owns a 2016 Toyota Sienna. The contact stated that the driver’s side electric sliding door failed to properly open and close, and occasionally abruptly closed, causing a safety hazard to the occupants entering and exiting the vehicle. The cause of the failure has not yet been determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 16V858000 (STRUCTURE). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was unknown.
The contact owns a 2016 Toyota Sienna. The contact stated the driver-side sliding door latch failed to latch as intended. The contact stated that after several attempts, the sliding door failed to close completely. The contact stated that no warning light was illuminated. The vehicle was taken to an independent mechanic but was not diagnosed. However, an unknown part was repaired. The contact stated that the failure persisted. The contact removed the button under the sliding door to manually close the door. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign number: 16V858000 (STRUCTURE); however, the VIN was not included. The failure mileage was approximately 70,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
What component or system failed or malfunctioned, and is it available for inspection upon request? The engine/transmission and the vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? While driving the vehicle at the rate of 55-60 mph, the vehicle came to a complete/instant stop without warning — potential causing harm or even death to the occupants of the associated vehicle, and it adversely affected my ability to safely control the vehicle. Also, as the incident was occurring, my drivers seatbelt became very, very tight. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No, but this is the second occurrence of this same incident within the past 30 days.
WHILE BUCKLING UP ON 6 DEC 2019, THE SEAT ATTACHMENT TO THE B-PILLAR COMPLETELY, WITHOUT RESISTANCE, DETACHED. THE BOLT THAT SECURED THE BELT WAS ON THE FLOOR, COMPLETELY PRISTINE IN APPEARANCE, UNDAMAGED, WITHOUT ANY EVIDENCE OF THREAD-LOCKER APPLICATION AT THE FACTORY. THE CAR HAD BEEN IN NO ACCIDENTS AND WAS IN EXCELLENT SHAPE, WITHOUT A TRACE OF BODY RUST OR DETERIORATION. DEALER REPLACED THE BOLT AND CHECKED THE OTHER BELT ANCHORING BOLTS AND SAID THEY WERE OKL. HAD TO RETURN TO THE DEALER IN TWO DAYS SINCE THEIR REPAIR HAD LEFT THE SEAT BELT TWISTED. THEY UNBOLTED, THEN RE-BOLTED THE BELT ANCHOR IN THE UN-TWISTED, CORRECT POSITION. NO HARM OCCURRED SINCE I PUT ON MY BELT BEFORE STARTING THE CAR; REALIZING THE DEFECT IMMEDIATELY, I GOT TO WORK BY OTHER MEANS THAT DAY. THE VEHICLE WAS STATIONARY, IN MY GARAGE AT THE TIME OF THE DEFECT DISCOVERY.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
A deer was struck on the driver to middle of the front of the van while traveling 75 mph on the highway. Caused significant enough damage that van was inoperable. What was concerning was the airbags did not deploy despite the significant force and high speed associated with this accident.
I HAD CAR ACCIDENT TODAY AND GOT HI MY LEFT FRONT WND REALLY GOOD AND THE POLICE SEEN MY CAR'S AIR BAG DID NOT GO OFF-IT DIDN'T SHOWS UP.MY FACE GOT HITTED BY STEERING WHEEL.I WAS DRIVING ON CITY OF PUYALLUP WASHINGTON RUNNING 25-35MILES AN HOUR WHEN THE VEHICLE BEHIND ME TOOK OVER IN FRONT OF ME TO CHANGE LANE TO THE LEFT.IT WAS A BIG IMPACT TO MAKE ME TURNED AND BOUNCED AWAY TO RIGHT SIDE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
Excessive outer wear on front tires
EXCESSIVE TIRE WEAR ON THE OUTSIDE OF THE FRONT WHEELS AFTER 20,000 MILES. MINIVAN IS DRIVEN IN NORMAL CITY AND HIGHWAY DRIVING. TIRES ARE ROTATED EVERY 5,000 MILES. ALL 4 TIRES WILL NEED TO BE REPLACED AFTER 20,000 MILES.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
WHEN THE HEADLIGHTS ARE OFF, THE DASHBOARD INSTRUMENTS (SPEEDOMETER) ARE VERY DIFFICULT TO SEEN WHEN OVERCAST OUTSIDE (NO BACK-LIGHTING). THIS IS OUR 3RD SIENNA AND WAS NOT AN ISSUE WITH PAST MODELS (2011 & 2013). THIS IS A SAFETY ISSUE IN THE IT REQUIRE EYES OFF THE ROAD LONGER THAN NECESSARY IN ORDER TO READY THE INSTRUMENTS.
2016 TOYOTA SIENNA DASH HEAD DISPLAY, RADIO GO OUT. WHEN THIS HAPPENS HEADLAMPS GO DIM TO POINT WHERE YOU CAN BARLEY SEE AND HAVE TO STOP THE VEHICLE. TOOK THIS IN TO LOCAL DEALERSHIP SEVERAL TIMES THEY STATED THAT UNTIL IT WAS HAPPENING IN THEIR PRESENCE THERE WAS NOTHING THEY COULD DO. WE WERE ABLE TO VIDEO RECORD THE ISSUE AND SHOWED DEALERSHIP. THEY REPLACED THE RADIO HEAD BUT ISSUE STILL OCCURS. ALSO HAVE PROBLEM WITH RECALL ON SLIDING DOOR. DEALER STATED THAT TOYOTA WAS STILL LOOKING FOR A FIX. I HAVE HAD DOOR OPEN AND CLOSE ON MY YOUNG CHILDREN WITHOUT NOTICE. HAVE THE POWER TURNED OFF TO DOORS NOW BUT BOUGHT THIS MODEL FOR THE POWER DOORS DUE TO BEING A DISABLE VET THIS FEATURE HELPS ME OUT A LOT.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
What component or system failed or malfunctioned, and is it available for inspection upon request? The engine/transmission and the vehicle is available for inspection upon request. How was your safety or the safety of others put at risk? While driving the vehicle at the rate of 55-60 mph, the vehicle came to a complete/instant stop without warning — potential causing harm or even death to the occupants of the associated vehicle, and it adversely affected my ability to safely control the vehicle. Also, as the incident was occurring, my drivers seatbelt became very, very tight. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No, but this is the second occurrence of this same incident within the past 30 days.
OUR 2016 TOYOTA SIENNA SPONTANEOUSLY CAUGHT FIRE WHILE PARKED IN OUR DRIVEWAY AFTER RETURNING FROM A SHORT DRIVE. AFTER PULLING INTO OUR DRIVEWAY AND SHUTTING OFF THE IGNITION, MY WIFE SMELLED SMOKE AS SHE WAS EXITING THE PARKED VEHICLE. THIS SMOKE INTENSIFIED AND QUICKLY ACCELERATED BECOMING AN ENGINE COMPARTMENT FIRE. SHE CALLED FOR ME & THEN CALLED 911; BUT IN THE BRIEF MOMENTS IT TOOK ME TO GRAB A FIRE EXTINGUISHER, THE FIRE FURTHER INTENSIFIED WITH SIZABLE FLAMES ERUPTING OUT FROM AROUND THE HOOD, FRONT GRILL & UNDERNEATH THE VEHICLE. I USED UP 2 FIRE EXTINGUISHERS WITHOUT ANY SIGNIFICANT EFFECT. I DID NOT HAVE ANY PROTECTIVE SAFETY GEAR SO AFTER HEARING SEVERAL SMALL EXPLOSIONS COMING FROM UNDER THE HOOD & FEARING MORE EXPOSURE TO NOXIOUS FUMES, I DECIDED TO ABANDON MY ATTEMPTS TO EXTINGUISH THE FIRE. THE FIRE DEPT. ARRIVED WITHIN A FEW MINUTES AND WERE ABLE TO PUT THE FIRE OUT; HOWEVER, THE FIRE PROGRESSED THROUGH THE INITIAL ATTACK AND ENTERED THE PASSENGER COMPARTMENT CAUSING SEVERE DAMAGE TO THE ENTIRE VEHICLE (SEE ATTACHED PHOTOS). THE SIENNA IS COMPLETELY DESTROYED. FORTUNATELY, THERE WERE NO INJURIES. I HAVE BEEN MADE AWARE OF MULTIPLE INCIDENTS OF ENGINE FIRES IN TOYOTA SIENNAS IN THIS & OTHER CLOSELY RELATED MODEL YEARS (2014-2017). SEE: NHTSA ID NUMBER: 11010601. I CAN ALSO SUPPLY YOU WITH SOME ADDITIONAL MEDIA ACCOUNTS OF OTHER TOYOTA SIENNA ENGINE FIRE REPORTS. OUR SIENNA WAS ROUTINELY MAINTAINED AS PER MANUFACTURER'S RECOMMENDATIONS & WAS LAST SERVICED ON 9/13/2019 (SEE ATTACHED SERVICE RECEIPT). THE VEHICLE HAD APPROX. 35K MILES ON IT & EXHIBITED NO PRIOR SIGNS OF TROUBLE, CHANGE IN PERFORMANCE OR WARNING INDICATOR LIGHTS. WE DID HAVE AN UNRESOLVED PROBLEM WITH AUTOMATIC SIDE DOORS NOT OPERATING PROPERLY AFTER A RECALL REPAIR; HOWEVER, THE LOCAL TOYOTA DEALER SERVICE DEPT. COULD NOT IDENTIFY A PROBLEM AFTER MULTIPLE SERVICE COMPLAINTS.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
TL* THE CONTACT OWNED A 2016 TOYOTA SIENNA. THE CONTACT STATED THAT WHILE DRIVING AT 60 MPH, THE STEERING WHEEL STIFFENED, WHICH RESULTED IN HER CRASHING THE VEHICLE INTO THE HIGHWAY SIDE BARRIER AND A FENCE STOPPED THE VEHICLE FROM GOING INTO THE WATER. THE CONTACT DID NOT SEEK MEDICAL ATTENTION AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED AND DEEMED TOTALED BY THE INSURANCE COMPANY. THE MANUFACTURER WAS INFORMED OF THE FAILURE AND PERFORMED AN INVESTIGATION. THE MANUFACTURER INFORMED THE CONTACT THAT FROM THE INSPECTION, THE EDR RECORDED VARIOUS STEERING INPUT PRIOR TO THE IMPACT, HOWEVER, THERE WAS NO EVIDENCE FOUND OF A STEERING DEFECT THAT CAUSED THE FAILURE, AND NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 22,000.
THE STEERING SEIZED UP ON MY 2016 TOYOTA VAN WHILE STOPPED AT A TRAFFIC LIGHT. I HAD TO GET THE VEHICLE TOWED. THERE ARE ONLY 20904 MILES ON THE ODOMETER. TOYOTA SAYS MY WARRANTY IS EXPIRED. TOYOTA SAYS I WILL NEED A NEW STEERING ASSEMBLY, WHICH I WILL HAVE TO PAY IS FOR $3200.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
SUNROOF GLASS EXPLODED ON ME AND MY KIDS ON MID MORNING OF 5/9/2019. NO OTHER DAMAGE TO VEHICLE. THE TEMPERATURE WAS AROUND 85 DEGREES. THE GLASS IS SHATTERED WITH NO WAY OF UTILIZING THE SUNROOF AT THIS TIME. THE VEHICLE WAS STATIONARY AT THE TIME OF THE INCIDENT.
THIS NEW TOYOTA SIENNA 2016 WAS DELIVERED WITH A DEFECTIVE FRONT WINDSHIELD WITH DISTORTION AT THE CENTER BOTTOM. IT CAUSES THE ROAD MARKINGS TO BECOME WAVY AND DISTORTED, AND IS DANGEROUSLY DISTRACTING ESPECIALLY AT NIGHT OR IN LOW LIGHT SITUATIONS. THE DEALER WAS IMMEDIATELY NOTIFIED, AND CHECKED OTHER SIENNAS ON THE LOT, ALL OF WHICH HAVE THE SAME DEFECT. THE DEALER DIRECTED US TO TOYOTA, AND TOYOTA FAILED TO RESPOND AND DID NOT CORRECT THE ISSUE.SINCE IT IS APPARENTLY A VEHICLE WIDE DEFECT, IT SEEMS A RECALL WOULD BE REQUIRED TO ADDRESS THE ISSUE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
After 80,000 miles have a loud whirling sound coming from rear, after inspection and online investigation found many many others with same issue, the dust cover and or o-ring doesn’t properly protect the rear bearing in the coupler. So while the fix is to remove the rear differential coupler, and replace the bearing with an improved version, seems Toyota has stopped supporting this, and no longer offers the improved bearing as a replacement part, but only supports replacing the entire rear differential coupling at $2000 for the part plus labor. While many have replaced the bearing without issues despite toyota not allowing it as a fix. So first it should be a recall as this is an obvious defect effecting thousands, but then to gouge owners for thousands when the fix doesn’t require a complete replacement of the rear differential coupling assembly.
TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. THE CONTACT RECEIVED A NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V585000 (POWER TRAIN); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED AUTONATION TOYOTA ARAPAHOE AT 303-578-6111 AND WAS INFORMED THAT SHE WOULD RECEIVE A CALL BACK WHEN THE PARTS ARRIVE. THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT TO CALL THE DEALER. THE CONTACT MENTIONED THAT THE DRIVER'S DOOR FAILED TO OPEN COMPLETELY. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN. VIN TOOL CONFIRMS PARTS DISTRIBUTION. *TT CONSUMER STATED DRIVER'S SIDE SLIDING. POWER DOORS HAD BEEN TURNED OFF WHEN RECALL RECEIVED IN OCT OR NOV 2016. UPDATED 8/13/18*JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
ON JUNE 6, 2019 AT APPROXIMATELY 6 PM MY VEHICLE EXPERIENCED UNINTENDED ACCELERATION. I WAS DRIVING AT 15 MPH AND IT ACCELERATED TO 40-50 MPH. BRAKING DID NOT SLOW DOWN THE VEHICLE. I JUMPED THE CURB AND HIT THREE SMALL TREES. IT CAME TO A HALT AFTER UNDERCARRIAGE DAMAGE HAD BEEN SUSTAINED. IT WAS TOWED TO CUMMINGS MOBILITY WHERE I PURCHASED THE VEHICLE. THEY COULD NOT DETERMINED WHAT CAUSED THE UNINTENDED ACCELERATION.
TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. WHILE OPERATING THE VEHICLE, THE REARVIEW CAMERA, WHICH WAS INTEGRATED INTO THE RADIO SYSTEM, MALFUNCTIONED AND STOPPED OPERATING. THE DEALER WAS UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE. THE CAMERA/RADIO UNIT WAS REPLACED, BUT THE FAILURE CONTINUED. THE CONTACT INDICATED THAT THE CAMERA/RADIO WAS REPLACED ON FOUR SEPARATE OCCASIONS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
THERE IS SOMETHING MECHANICALLY WRONG WITH THE DESIGN OF THE SUSPENSION THAT IS CAUSING TIRES TO WEAR COMPLETELY IN 15K-20K MILES. THIS IS A KNOWN ISSUE, AND NOTHING IS BEING DONE ABOUT IT. HTTPS://WWW.CARGURUS.COM/CARS/DISCUSSION-T34192_DS548164
ON JUNE 6, 2019 AT APPROXIMATELY 6 PM MY VEHICLE EXPERIENCED UNINTENDED ACCELERATION. I WAS DRIVING AT 15 MPH AND IT ACCELERATED TO 40-50 MPH. BRAKING DID NOT SLOW DOWN THE VEHICLE. I JUMPED THE CURB AND HIT THREE SMALL TREES. IT CAME TO A HALT AFTER UNDERCARRIAGE DAMAGE HAD BEEN SUSTAINED. IT WAS TOWED TO CUMMINGS MOBILITY WHERE I PURCHASED THE VEHICLE. THEY COULD NOT DETERMINED WHAT CAUSED THE UNINTENDED ACCELERATION.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
OUR 2016 TOYOTA SIENNA SPONTANEOUSLY CAUGHT FIRE WHILE PARKED IN OUR DRIVEWAY AFTER RETURNING FROM A SHORT DRIVE. AFTER PULLING INTO OUR DRIVEWAY AND SHUTTING OFF THE IGNITION, MY WIFE SMELLED SMOKE AS SHE WAS EXITING THE PARKED VEHICLE. THIS SMOKE INTENSIFIED AND QUICKLY ACCELERATED BECOMING AN ENGINE COMPARTMENT FIRE. SHE CALLED FOR ME & THEN CALLED 911; BUT IN THE BRIEF MOMENTS IT TOOK ME TO GRAB A FIRE EXTINGUISHER, THE FIRE FURTHER INTENSIFIED WITH SIZABLE FLAMES ERUPTING OUT FROM AROUND THE HOOD, FRONT GRILL & UNDERNEATH THE VEHICLE. I USED UP 2 FIRE EXTINGUISHERS WITHOUT ANY SIGNIFICANT EFFECT. I DID NOT HAVE ANY PROTECTIVE SAFETY GEAR SO AFTER HEARING SEVERAL SMALL EXPLOSIONS COMING FROM UNDER THE HOOD & FEARING MORE EXPOSURE TO NOXIOUS FUMES, I DECIDED TO ABANDON MY ATTEMPTS TO EXTINGUISH THE FIRE. THE FIRE DEPT. ARRIVED WITHIN A FEW MINUTES AND WERE ABLE TO PUT THE FIRE OUT; HOWEVER, THE FIRE PROGRESSED THROUGH THE INITIAL ATTACK AND ENTERED THE PASSENGER COMPARTMENT CAUSING SEVERE DAMAGE TO THE ENTIRE VEHICLE (SEE ATTACHED PHOTOS). THE SIENNA IS COMPLETELY DESTROYED. FORTUNATELY, THERE WERE NO INJURIES. I HAVE BEEN MADE AWARE OF MULTIPLE INCIDENTS OF ENGINE FIRES IN TOYOTA SIENNAS IN THIS & OTHER CLOSELY RELATED MODEL YEARS (2014-2017). SEE: NHTSA ID NUMBER: 11010601. I CAN ALSO SUPPLY YOU WITH SOME ADDITIONAL MEDIA ACCOUNTS OF OTHER TOYOTA SIENNA ENGINE FIRE REPORTS. OUR SIENNA WAS ROUTINELY MAINTAINED AS PER MANUFACTURER'S RECOMMENDATIONS & WAS LAST SERVICED ON 9/13/2019 (SEE ATTACHED SERVICE RECEIPT). THE VEHICLE HAD APPROX. 35K MILES ON IT & EXHIBITED NO PRIOR SIGNS OF TROUBLE, CHANGE IN PERFORMANCE OR WARNING INDICATOR LIGHTS. WE DID HAVE AN UNRESOLVED PROBLEM WITH AUTOMATIC SIDE DOORS NOT OPERATING PROPERLY AFTER A RECALL REPAIR; HOWEVER, THE LOCAL TOYOTA DEALER SERVICE DEPT. COULD NOT IDENTIFY A PROBLEM AFTER MULTIPLE SERVICE COMPLAINTS.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA EQUIPPED WITH FIRESTONE FR710 TIRES, SIZE 205/65R16. WHILE THE VEHICLE WAS PARKED, THE CONTACT HEARD AN EXPLOSION. UPON INSPECTION, THE CONTACT DISCOVERED THAT THE FRONT DRIVER SIDE TIRE EXPLODED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE TIRE AND VEHICLE FAILURE MILEAGE WAS 3,750.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2016 TOYOTA SIENNA. WHILE DRIVING APPROXIMATELY 15 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT IT WAS DIFFICULT TO STOP THE VEHICLE. THE CONTACT HEARD A CLICKING NOISE AT THE TIME OF THE FAILURE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 14,300.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .