2015 Toyota Sienna Problems & Owner Complaints

Structure 60 1 injury

“MY 11-YEAR OLD SON GOT OUT OF THE FRONT PASSENGER SIDE OF OUR STAITIONARY MINIVAN (IN PARK BUT RUNNING), FOR ME TO DROP HIM OFF FOR A CELLO LESSON. HE OPENED THE REAR PASSENGER SIDE SLIDING DOOR TO GET HIS CELLO OUT. IT WASNT OPENING EASILY, SO I ALMOST SIMULTANEOUSLY PUSHED THE BUTTON ABOVE ME ON THE CONSOLE. AT THAT POINT THE DOOR STARTED TO CLOSE ON HIM. IT DID NOT STOP CLOSING AND WAS PRESSING HIM INTO THE DOOR FRAME. I DIDN'T REALIZE WHAT WAS HAPPENING, AND HE WAS TOO SHOCKED TO SCREAM. HE WAS TRYING TO STOP IT FROM CLOSING ON HIM, BUT IT KEPT CLOSING. I EXPECTED THAT THE DOOR WOULD AUTOM…”
NHTSA complaint #10862153, 2016 · 1 injury(ies)

“In August 2025, AutoNation Toyota on Sahara, checked the VIN of my Toyota Sienna and contacted Toyota while I was present. Toyota confirmed a broken fuel-door hinge was covered under a Customer Support Program. Instead, AutoNation attempted to repair, rather than replace, the hinge. This caused the metal fuel cap door to end up bent, paint to be gouged out from the bottom of the fuel door area, misalignment of the fuel door, and therefore issues with the door’s sensor reading correctly. I took the van back until they received shipment of a new fuel cap door. After the attempted repair, since…”
NHTSA complaint #11713421, 2025

“Fuel filler door upper hinge failed so that door would not seat properly when closed. Because the door was not seated properly, the left side power sliding door interlock did not release, preventing the sliding door from opening fully. I had visited a fast food restaurant in Feb 2025 and ordered some French fries for my[XXX], strapped into his child seat directly behind the driver. He was choking on a fry, starting to turn blue. I quickly stopped and attempted to open the sliding power door, but it would not open fully to allow access to my grandson because the failing fuel door wouldn't…”
NHTSA complaint #11676320, 2025

Electrical System 44 1 crash 4 fire 2 injury

“I STOPPED AT A GAS STATION AND WAS PARKED WITH THE CAR ON, AND I REACHED UNDER MY FRONT PASSENGER SEAT (MANUAL SEAT) AND RECEIVED A 20 AMP SHOCK FROM ONE OF THE WIRES UNDER THE SEAT. RESULTING IN MY DISLOCATING MY SHOULDER FROM THE MUSCLE SPASMS. TAKING IT INTO DEALERSHIP TOMORROW MORNING BUT AFTER TALKING WITH THEM THEY DONT HAVE ANY IDEA WHAT COULD HAVE CAUSED IT.”
NHTSA complaint #10970614, 2017 · 1 injury(ies)

“MY 11-YEAR OLD SON GOT OUT OF THE FRONT PASSENGER SIDE OF OUR STAITIONARY MINIVAN (IN PARK BUT RUNNING), FOR ME TO DROP HIM OFF FOR A CELLO LESSON. HE OPENED THE REAR PASSENGER SIDE SLIDING DOOR TO GET HIS CELLO OUT. IT WASNT OPENING EASILY, SO I ALMOST SIMULTANEOUSLY PUSHED THE BUTTON ABOVE ME ON THE CONSOLE. AT THAT POINT THE DOOR STARTED TO CLOSE ON HIM. IT DID NOT STOP CLOSING AND WAS PRESSING HIM INTO THE DOOR FRAME. I DIDN'T REALIZE WHAT WAS HAPPENING, AND HE WAS TOO SHOCKED TO SCREAM. HE WAS TRYING TO STOP IT FROM CLOSING ON HIM, BUT IT KEPT CLOSING. I EXPECTED THAT THE DOOR WOULD AUTOM…”
NHTSA complaint #10862153, 2016 · 1 injury(ies)

“2015 TOYOTA SIENNA. CONSUMER WRITES IN REGARDS TO VEHICLE FIRE. *AS”
NHTSA complaint #11131288, 2018 · fire

Unknown Or Other 42 2 crash 1 injury

“WHEELCHAIR VAN CONVERSION GONE WRONG. I HAVE IT DOCUMENTED. THE STATE OF OHIO SPENT $109 THOUSAND I SPENT $40 THOUSAND. THE VAN IS NOT SAFE TO DRIVE. I HAVE DOCUMENTS FROM THE TOYOTA DEALER THAT THE STEERING TURN MORE LEFT THAN TURNS TO THE RIGHT. I HAVE MORE DOCUMENTS. *LN *TR”
NHTSA complaint #11203230, 2018 · crash · 1 injury(ies)

“We got into an accident today, and none of the sliding doors would not slide open. It would not even allow us to pull the doors opens. The vehicles electrical was damaged, but that should not prevent the other doors from opening. This is a very bad situation if someone is needing to evacuate the vehicle. The rear passengers would be trapped. Please address this issue with Toyota asap. People who usually have Vans have big families and small children. This would be a very bad situation if vehicle needed to be evacuated asap. The rear passengers would be stuck.”
NHTSA complaint #11481046, 2022 · crash

“Rain water leaking into the parked vehicle on the driver and passenger seat belts, potentially weakening the belts and creating odor.”
NHTSA complaint #11739438, 2026

Service Brakes 18 2 crash 3 injury

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE DRIVING AT AN UNKNOWN SPEED AND MAKING A LEFT TURN, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO RESPOND AS IT TRAVELED TO THE FLOORBOARD. AS A RESULT, ANOTHER VEHICLE CRASHED INTO THE FRONT PASSENGER CORNER PANEL OF THE CONTACT'S VEHICLE. THE CONTACT AND A PASSENGER IN THE OTHER VEHICLE SUSTAINED UNKNOWN INJURIES THAT REQUIRED MEDICAL ATTENTION. THE AIR BAGS DEPLOYED. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE LOCAL DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE F…”
NHTSA complaint #11118098, 2018 · crash · 2 injury(ies)

“The contact called on behalf of his mother who owns a 2015 Toyota Sienna. The contact stated while his mother was driving 15 MPH, the brake pedal was depressed but failed to respond, causing the vehicle to crash into the rear of another occupied vehicle. There was no warning light illuminated. The air bags did not deploy. Both the contact's mother and the other driver received assistance from emergency units. The contact's mother sought medical assistance and was informed that she had sustained soreness in the neck muscle. The contact was unsure whether the other driver sustained any injuries.…”
NHTSA complaint #11505051, 2023 · crash · 1 injury(ies)

“I have had this car for 7 years. Started having issues a year ago and despite bringing it to Toyota 2x, they cannot tell me what the issue is. I will be driving on a regular flat paved road when the car will suddenly brake and pull me towards the side of the road. I get the ABS code sometimes and also the slip indicator light. I've explained this each x I've brought it in and they have told me it's due to me "driving too fast" or "accidentally having my foot on the brake." LOL I am a typical soccer mom and drive conservatively and don't brake when I don't have to. It will do it on curving ro…”
NHTSA complaint #11652418, 2025

Engine 15 4 fire 2 injury

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE STATIONARY, THE VEHICLE CAUGHT FIRE WITHOUT WARNING. THE CONTACT STATED THAT SMOKE CAME FROM THE ENGINE COMPARTMENT AND FLAMES EMERGED DIRECTLY AFTERWARD. A POLICE REPORT WAS FILED. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. THE CONTACT'S TWO CHILDREN RECEIVED MEDICAL TREATMENT FOR SMOKE INHALATION. THE CONTACT STATED THAT THE VEHICLE HAD AN OPEN RECALL PER NHTSA CAMPAIGN NUMBER: 16V858000 (STRUCTURE). THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 42,000.”
NHTSA complaint #10969725, 2017 · fire · 2 injury(ies)

“My engine caught on fire. We had seconds to get out prior to it engulfing in flames. Fire department had to extinguish. Not sure what caused it. The entire vehicle caught on fire. There was an engine light warning I had the vehicle repaired but the warning light was not cleared”
NHTSA complaint #11660309, 2025 · fire

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE DRIVING UP A HILL, SMOKE ENTERED THE VEHICLE AND FLAMES APPEARED UNDER THE HOOD. THE CONTACT WAS ABLE TO EXIT THE VEHICLE. THE FIRE EXTINGUISHED ON ITS OWN, BUT THE VEHICLE WAS DAMAGED EXTENSIVELY. THE VEHICLE WAS TOWED TO A REPAIR SHOP AND A COLLISION CENTER TO REPAIR THE DAMAGES. THE MANUFACTURER TOWED THE VEHICLE TO A DEALER. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE VIN AND FAILURE MILEAGE WERE NOT AVAILABLE. UPDATED 03/15/17*LJ *CN”
NHTSA complaint #10945819, 2016 · fire

Wheels 14

“The front tires are wearing out to an unsafe tread in under 15000 miles due to the suspension in the front of this vehicle. If people are not vigilant the tires become unsafe quickly due to poor engineering on the front end.”
NHTSA complaint #11586260, 2024

“I have a 2015 Toyota Sienna LE that I purchased new from the dealer. The original Michelin tires had excessive wear after less than 2yrs and ~28K miles. I replaced these with Continental tires(rated for 70K miles) and after 2years and at ~63K on the vehicle miles I had to replace those with General Altimax (rated for 75K miles). Each time tires were replaced it received and alignment. I now need to replace the third set of tires at ~88k for set number four. Additionally I had to replace the Rank and Pinion (Complete unit), both tie rods and both suspension control arms and ball joint assem…”
NHTSA complaint #11430201, 2021

“THE VAN IS TOO HEAVY FOR THE RATED TIRES, AND WEARS THE TOES OUT SO DANGEROUSLY THAT RISK OF PREMATURE BLOWOUT IS IMMINENT. JUST HIT 100K MILES ON MY 2015 AWD SIENNA. 1ST SET OF TIRES LASTED 35K MILES WITH RUN FLATS, BUT WAS DOWN TO THE STEEL MESH. NEXT SET WAS KELLEY THAT LASTED 32K WITHOUT RUNFLATS, 3RD SET WAS GOODYEAR THAT LASTED 32K. READY FOR SET NUMBER 4 NOW, SO AVERAGE OF ~32K PER PAIR, EACH OF THEM HAD A 50K MILE WARRANTY MINIMUM. ALL 4 SETS WERE TOE WORN DOWN TO STEEL BELT RADIAL AND HAD BEEN ROTATED PROPERLY.”
NHTSA complaint #11318983, 2020

Power Train 12 2 crash

“The contact owns a 2015 Toyota Sienna. The contact stated that while the vehicle was parked, and the shifter lever was turned off, it unexpectedly fell down, causing the vehicle to shift into drive and roll down the street, where it crashed into a house. At the time of the incident, the vehicle was occupied by one three-year-old and two six-year-old children. One of the six-year-old occupants attempted to move the shifter into park while another attempted to steer the vehicle. The passenger-side sliding door was ajar. There were no warning lights illuminated. There were no reported injuries, f…”
NHTSA complaint #11731336, 2026 · crash

“My husband parked our minivan and came in to pick up the kids. While he was inside the library, the van went out of park and hit a fire truck in the parking lot. It seems this has been an issue with Toyota siennas in the past but I do not see it reported yet for its year 2015. Our van had damage to the front fender, hood, and surrounding area and needed repair. We obviously didn’t have any idea this was possible nor noticed anything since purchasing this van recently. I have read online that a Toyota sienna cannot be turned off without being in park. Since my husband was not in the vehic…”
NHTSA complaint #11679069, 2025 · crash

“On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT pressed. Manufacture initiated an investigation after we contacted their customer care line. Our vehicle was taken to a Toyota dealership on March 11, 2026. We received an email on April 13, 2026 stating Toyota's inspection did not identify any evidence that this incident was a result of a concern with the operation of our vehicles gear shift lever. We retrieved our vehicle fro…”
NHTSA complaint #11733159, 2026

Steering 11 2 crash 1 injury

“WHEELCHAIR VAN CONVERSION GONE WRONG. I HAVE IT DOCUMENTED. THE STATE OF OHIO SPENT $109 THOUSAND I SPENT $40 THOUSAND. THE VAN IS NOT SAFE TO DRIVE. I HAVE DOCUMENTS FROM THE TOYOTA DEALER THAT THE STEERING TURN MORE LEFT THAN TURNS TO THE RIGHT. I HAVE MORE DOCUMENTS. *LN *TR”
NHTSA complaint #11203230, 2018 · crash · 1 injury(ies)

“FROM 2016 AND UNTIL HE RECEIVED HIS CONVERTED 2015 TOYOTA SIENNA IN FEBRUARY 2018, OSU OUTPATIENT REHAB WAS RESPONSIBLE FOR ASSESSING [XXX]'S DISEASE PROGRESSION AND ENSURING THAT HE WAS ABLE TO SAFELY DRIVE HIS MODIFIED VEHICLE.*DT*DT OPPORTUNITIES FOR OHIOANS WITH DISABILITIES ADMINISTERS A VEHICLE MODIFICATION PROGRAM, WHEREBY DISABLED CONSUMERS PURCHASE A VEHICLE SUITABLE FOR ADAPTATION AND OOD CONTRACTS AND PAYS FOR VEHICLE TO BE RETROFITTED WITH ADAPTIVE EQUIPMENT. UNDER OHIO ADMINISTRATIVE CODE 3306-6-02 (MOTOR VEHICLE MODIFICATIONS, SCOPE AND LIMITATIONS.WISHING TO PARTICIPATE IN OOD'…”
NHTSA complaint #11311047, 2018 · crash

“My 2015 Toyota Sienna has “Sticky” steering. When on a curve, like an highway curved ramp, the steering locks in place. I have to pull the steering wheel back to keep the car on track. When it sticks I can literally let go on a curve and it will hold it’s position. Even when driving straight this occurs. The steering wheel will stick in place requiring me to turn it to get the steering wheel to come back to the desired or correct position. I’m seeing that this is a regular problem for Toyota steering across multiple models. Having your steering get stuck in place has the potential to be a very…”
NHTSA complaint #11744995, 2026

Air Bags 9 6 crash 8 injury

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE AT A STOP LIGHT, ANOTHER VEHICLE CRASHED INTO THE REAR OF THE CONTACT'S VEHICLE. THE INCIDENT CAUSED THE CONTACT TO CRASH INTO THE PRECEDING VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS FILED. THE CONTACT, THE FRONT SEAT PASSENGER, AND THE REAR SEAT PASSENGER SUSTAINED UNKNOWN INJURIES THAT REQUIRED MEDICAL ATTENTION. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 54,000.”
NHTSA complaint #10871836, 2016 · crash · 3 injury(ies)

“I WAS TRAVELING WEST ON RT 202 (BUTLER BLVD) IN JACKSONVILLE, FL. MY SPEED WAS 65MPH AND I WAS IN THE MIDDLE LANE. I WAS DRIVING AND MY SON, CHRISTOPHER, WHO IS DISABLED WAS SITTING IN THE MIDDLE ROW CENTER IN HIS WHEELCHAIR WHICH WAS ANCHORED TO THE FLOOR BY FOUR TIE-DOWNS. A CAR TRYING TO PASS US IN THE OUTSIDE LEFT LANE HIT MY VEHICLE IN THE DRIVERS SIDE REAR AND CAUSED US TO SPIN IN THE ROADWAY. AFTER WE CAME OUT OF THE SPIN WE HIT THE CONCRETE BARRIER DIVIDING THE ROADWAY. MY VEHICLE WAS TOTALED WITH EXTENSIVE DAMAGE TO FRONT AND FRAME. MY SON AND I WERE SLIGHTLY INJURED BUT NOT TREATED O…”
NHTSA complaint #10959516, 2017 · crash · 2 injury(ies)

“The contact called on behalf of his mother who owns a 2015 Toyota Sienna. The contact stated while his mother was driving 15 MPH, the brake pedal was depressed but failed to respond, causing the vehicle to crash into the rear of another occupied vehicle. There was no warning light illuminated. The air bags did not deploy. Both the contact's mother and the other driver received assistance from emergency units. The contact's mother sought medical assistance and was informed that she had sustained soreness in the neck muscle. The contact was unsure whether the other driver sustained any injuries.…”
NHTSA complaint #11505051, 2023 · crash · 1 injury(ies)

Seat Belts 8

“Rain water leaking into the parked vehicle on the driver and passenger seat belts, potentially weakening the belts and creating odor.”
NHTSA complaint #11739438, 2026

“Passenger side middle row seat belt has locked up fully retracted. Dealership service center stated on invoice, “nothing found to be causing the binding other than a mechanical issue, quoted replacing the seat belt assembly.””
NHTSA complaint #11623175, 2024

“Water intrusion from front sunroof when vehicle is parked at a 5% grade with the nose downward. Multiple vehicles exhibit this issue. Toyota is not creating any TSB and will mot even remedy it even if we have an extended warranty. Here is a link to the discussion thread: [XXX] I have not posted on this thread but I have the exact same issue for years. Toyota dealerships want me to first pay $1000 in labor to pull down the headliner and test. Then ask the warranty to cover the assembly, if they don't cover it... then I am on the hook for the work. The missing seam sealer is a common issue tha…”
NHTSA complaint #11650866, 2021

Suspension 8 3 crash 1 injury

“WHEELCHAIR VAN CONVERSION GONE WRONG. I HAVE IT DOCUMENTED. THE STATE OF OHIO SPENT $109 THOUSAND I SPENT $40 THOUSAND. THE VAN IS NOT SAFE TO DRIVE. I HAVE DOCUMENTS FROM THE TOYOTA DEALER THAT THE STEERING TURN MORE LEFT THAN TURNS TO THE RIGHT. I HAVE MORE DOCUMENTS. *LN *TR”
NHTSA complaint #11203230, 2018 · crash · 1 injury(ies)

“FROM 2016 AND UNTIL HE RECEIVED HIS CONVERTED 2015 TOYOTA SIENNA IN FEBRUARY 2018, OSU OUTPATIENT REHAB WAS RESPONSIBLE FOR ASSESSING [XXX]'S DISEASE PROGRESSION AND ENSURING THAT HE WAS ABLE TO SAFELY DRIVE HIS MODIFIED VEHICLE.*DT*DT OPPORTUNITIES FOR OHIOANS WITH DISABILITIES ADMINISTERS A VEHICLE MODIFICATION PROGRAM, WHEREBY DISABLED CONSUMERS PURCHASE A VEHICLE SUITABLE FOR ADAPTATION AND OOD CONTRACTS AND PAYS FOR VEHICLE TO BE RETROFITTED WITH ADAPTIVE EQUIPMENT. UNDER OHIO ADMINISTRATIVE CODE 3306-6-02 (MOTOR VEHICLE MODIFICATIONS, SCOPE AND LIMITATIONS.WISHING TO PARTICIPATE IN OOD'…”
NHTSA complaint #11311047, 2018 · crash

“I AM A DISABLED FEDERAL EMPLOYEE. I HAVE A NEW HANDICAP CONVERSION VAN FROM VMI VANTAGE MOBILITY INT. IT IS NOT SAFE TO DRIVE. THE SUSPENSION IS HORRIBLE”
NHTSA complaint #11155200, 2018 · crash

Fuel/Propulsion System 7

“There is an EVAP emission leak and the P0456 error states the gas cap is faulty. I had it replaced and replaced again. So I am waiting for another brand new gas cap-3rd brand new one. So 4th overall for this van. A smoke test was done and there is no leaks per the test. So if this continues after the brand new gas cap, then there should be a recall as the gas cap is an issue. Started to happen after 95,000 miles. The AWD is shut off and goes to 2 wheel drive, traction control is turned off, Check Engine light comes on and Message Check AWD system comes up on the screen. Any recommendations”
NHTSA complaint #11586715, 2024

“On a warm day after driving the van about 15 minutes then stop for 15 minutes or more. It is taking longer than usual to crank the van. I have search around online. It seems like a common problem Sienna's fuel pump. People on "SiennaChat - https://www.siennachat.com/threads/engine-starts-great-cold-or-hot-long-crank-when-warm.59549/page-2 " website is talking about it. My concern is that one day it could stall while driving on the highway. Since, it is fuel related issues. Without fuel supply engine will halt.”
NHTSA complaint #11500084, 2023

“THE FUEL PUMP INTERMITTENTLY FAILS. SOMETIMES IT WON'T START AT ALL, SOMETIMES IT STARTS BUT THE ENGINE STUMBLES BEFORE IT SHUTS OFF, AND SOMETIMES THE ENGINE WILL JUST SHUT OFF WHILE ACCELLERATING ON THE ROAD. TOYOTA HAS DIAGNOSED IT AS A BAD FUEL PUMP AND ARE IN THE PROCESS OF REPLACING IT AT MY COST.”
NHTSA complaint #11351862, 2020

Exterior Lighting 6 1 crash

“THE CRUISE CONTROL BACKLIGHTING ON THE "CONTROL STALK" BLINKS/FLASHES ERRATICALLY IN THE DRIVER'S PERIPHERAL VISION. THIS IS QUITE DANGEROUS AND DISTRACTING. THIS HAPPENS AT ALL SPEEDS AND DRIVING CONDITIONS BUT SEEMS TO BE WORSE WHEN HAVING TO TURN THE STEERING WHEEL MORE (I.E. A PARKING LOT VS. CHANGING LANES ON THE HIGHWAY).”
NHTSA complaint #10825127, 2015 · crash

“THE DASHBOARD SPEEDOMETER AND TACHOMETER GAUGES CANNOT BE ILLUMINATED WITHOUT TURNING ON PARKING OR HEADLIGHTS. THESE GAUGES CANNOT BE SEEN DURING THE DAY WHEN THE DASHBOARD IS SHADOWED. ISSUE HAS BEEN REPORTED ON SIENNA CHAT BOARDS AND NUMEROUS TOYOTA SERVICE DEPARTMENTS.”
NHTSA complaint #11032970, 2017

“IN DAYLIGHT, WHEN HEADLIGHTS ARE OFF OR AUTOMATIC, THE SPEEDOMETER DOES NOT ILLUMINATE. WITH HEADLIGHTS ON, ILLUMINATION IS VERY FAINT AT ITS MAXIMUM SETTING. THE DISPLAY IS SO DARK THAT IT CANNOT BE RELIABLY READ. WITH SUNGLASSES, IT IS IMPOSSIBLE TO READ THE SPEEDOMETER. NOTE, THIS IS AN ANALOG SPEEDOMETER, AND THIS MODEL DOES NOT HAVE AN ADDITIONAL DIGITAL SPEED DISPLAY. AN INTERNET SEARCH INDICATES THAT THIS PROBLEM IS UNIVERSAL FOR THIS MODEL/YEAR (NOT A DEFECT IN MY VEHICLE). IT CREATES A HAZARD BECAUSE ONE CANNOT EASILY DETERMINE SPEED. (AT NIGHT THERE IS NO PROBLEM, SINCE THE DASHBOARD…”
NHTSA complaint #11012156, 2017

Electronic Stability Control (Esc) 5

“DRIVING 35-55 MPH AND GOING AROUND (USUALLY) A LEFT CURVE ON THE HIGHWAY OR INTERSTATE, VAN SUDDENLY BRAKES, SWERVES, AND TRACTION CONTROL/VEHICLE STABILITY CONTROL LIGHT POPS ON. WHOLE EPISODE LASTS A SECOND OR TWO, THEN ITS FINE. IT WONT HAPPEN AGAIN FOR THE DURATION OF THE TRIP. I ONLY DRIVE THE VAN ON WEEKENDS, AND IT HAS HAPPENED THREE TIMES IN THE PAST TWO WEEKS. IT HAS NEARLY CAUSED A SERIOUS ACCIDENT.”
NHTSA complaint #11289262, 2019

“2015 TS INITIAL EXPERIENCE WAS ABS SYSTEM AND TRACTION CONTROL MALFUNCTION EXPERIENCED TWICE. THIS WAS A SCARY EXPERIENCE DRIVING ON THE HIGHWAY WITH ERROR SIGNAL ON THE DASHBOARD.”
NHTSA complaint #11244310, 2019

“WHILE DRIVING IN THE MOUNTAINS AND CURVING RIGHT, THE STABILITY CONTROL ACTIVATED THE BRAKES. THE CAR WAS NOT SPEEDING AND THE ROADS WERE DRY. IT HAPPENED 3 TIMES IN ONE TRIP. THE BRAKING ACTION MADE IT DIFFICULT TO COMPLETE THE TURN. PLUS THE DECREASE IN SPEED WAS A DANGER TO THE OCCUPANTS PLUS THE CAR BEHIND US. OTHER CURVES DID NOT ACTIVATE THE STABILITY CONTROL SO IT WAS A GUESS AS TO WHEN AND IF THIS WOULD HAPPEN. DID MAKE IT BACK SAFELY.”
NHTSA complaint #11208249, 2019

Latches/Locks/Linkages 5

“The slide door latch stopped working. The sliding door doesn't latch properly and I have to manually close the door and lock it to know it's secure. If it's not locked a slight push will cause it to pop open. My mechanic said there is a recall associated with the replacement part. I can't find the recall. However, I did find a related TSB (TSB-0244-17).”
NHTSA complaint #11656411, 2025

“Passenger sliding door jammed and would not open! Serious safety hazard as passengers unable to rapidly exit in an emergency!”
NHTSA complaint #11650829, 2025

“The contact owns a 2015 Toyota Sienna. The contact stated that while his wife was driving on two occasions at various speeds, the rear passenger’s side sliding door opened inadvertently. The vehicle was steered to the side of the road and closed after several attempts. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 30,000.”
NHTSA complaint #11590434, 2024

Visibility/Wiper 5

“IN JANUARY 2021, WHILE SITTING IN THE DRIVEWAY AN EIGHT INCH CRACK APPEARED IN THE MIDDLE OF THE WINDSHIELD. THE WINDSHIELD WAS REPLACED IN SEPTEMBER 2020 AFTER PURCHASING THE VEHICLE AS A REPO. THE WINDSHIELD THAT WAS REPLACED WAS CRACKED THE ENTIRE WIDTH OF THE GLASS IN THE EXACT SAME PLACE WHERE THE NEW CRACK HAS APPEARED. THE VEHICLE WAS TAKEN TO THE REPAIR SHOP AND IT HAS BEEN DETERMINED THAT THERE IS NOT ENOUGH SUPPORT FOR THE WINDSHIELD BUILT INTO THE FRAME CAUSING THE DAMAGE TO REAPPEAR. SINCE THEN THE CRACK HAS CONTINUED UP THE WINDSHIELD AND IS NOW APPROXIMATELY 14 INCHES.”
NHTSA complaint #11406071, 2021

“SUNROOF SPONTANEOUSLY BURST ON JUNE 6, 2018, AROUND 7:25PM, MY FAMILY AND I WERE HEADING HOME A STORE, GOING NORTH ON MO-65 AT ABOUT 65 MPH IN SPRINGFIELD, MO. JUST SOUTH OF BATTLEFIELD RD, WE HEARD A LOUD "POP" SOUND. WE THOUGHT OUR DAUGHTER HAD HIT HER METAL THERMOS AGAINST THE BACK WINDOW. WHEN WE ARRIVED HOME, HOWEVER, I HEARD A CRACKLING SOUND AND TRACED IT TO THE SUNROOF, WHICH WAS SHATTERED (LIKE A SPIDER WEB) AND BULGING AT THE TOP. SINCE THEN, AS OF 9AM THE FOLLOWING DAY, IT HAS CONTINUED TO BULGE MORE, WITH A COUPLE OF SMALL PIECES OF GLASS HAVING POPPED OUT ONTO THE TOP OF THE…”
NHTSA complaint #11100338, 2018

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE DRIVING VARIOUS SPEEDS, BOTH THE DRIVER AND PASSENGER SIDE VIEW MIRRORS BECAME LOOSE, WHICH CHANGED THE DRIVER'S FOCUS OF THE ROAD. BYERS TOYOTA IN DELAWARE, OHIO WAS MADE AWARE OF THE FAILURE AND STATED THAT BOTH MIRRORS WOULD NEED TO BE REPLACED. IN ADDITION, THE DEALER STATED THAT THE VEHICLE WAS OUT OF WARRANTY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 20,000.”
NHTSA complaint #11053563, 2016

Tires 4

“I have requested urgent warranty evaluation regarding two Kumho Solus TA51a tires installed on my Toyota Sienna (Model: Kumho Solus TA51a, Size: 235/60R17 102H, DOT: 1824) Both front tires are exhibiting abnormal tread chunking and visible surface shredding. The tires are relatively new (purchased about 1-1.5 years ago) and have not been heavily used (only riding this car occassionally, about 5000-7000 miles per year). Our 2 rear tires are Kumho tires of different model, and although older, they are performing fine and do not experience these issues so it seems to be an issue on this particul…”
NHTSA complaint #11750824, 2026

“We recently had two Dunlop P 235 / 50 R 19 tires fail on our car. On 11/5/21, the front passenger-side tire tread and belt began to unravel while driving at freeway speed. This happened suddenly, with no warning lights, and we became aware of the problem when we heard a loud thumping noise from the unraveled tire striking the underside of the vehicle. We immediately exited the freeway, found a tire shop, and had the tire replaced. The following week, I inspected the other tires and found that the front drive-side tire was failing in exactly the same way. We immediately had that one replaced to…”
NHTSA complaint #11445435, 2021

“We purchased Nokian WrG3 225/60 R18 tires as replacements for the original tires, because we wanted all weather capability. They were installed in November of 2016. One tire subsequently was damaged due to road hazard; was replaced with same Nokian tire. In August, 2021, the tires needed balancing. The dealer (same place we bought them) could not balance them because three of the tires had belt separation. I did not check tire serial number, but assume them to be the original three we purchased new. We are awaiting Nokian's response, as the tires are warranted five years from installation. I…”
NHTSA complaint #11432340, 2021

Child Seat 3 2 crash 10 injury

“BRITAX CAR SEAT. ADVOCATE 70-G3. MANUFACTURER 01/2013.COMPLAINING OF TOP LATCH COMPONENT! WE HAVE OWNED THIS CAR SEAT FOR 3 YEARS AND NEVER HAD AN ACCIDENTWITH IT UNTILNOW. WE WERE SITTING AT A RED LIGHT AND GOT REAR ENDED BY A BIG PICK UP TRUCK SMASHING OUR TRUNK IN AND LIFTING OUR BACK END OFF THE GROUND. OUR ONE YEAR OLD WHO WAS IN THIS CAR SEAT WAS REAR FACING AND LATCHED IN CORRECTLY WEARING A LIGHT FLEECE (NO PUFFY JACKET.. WE ARE VERY CAREFUL TO FOLLOW EVERY CAR SEAT RULE). DURING THE ACCIDENT HER TOP LATCH CAME UNDONE! THE ADULT SITTING NEXT TO HER WITNESSED THE TOP HALF OF HER BODY FL…”
NHTSA complaint #10937483, 2016 · crash · 5 injury(ies)

“BRITAX CAR SEAT. ADVOCATE 70-G3. MANUFACTURER 01/2013.COMPLAINING OF TOP LATCH COMPONENT! WE HAVE OWNED THIS CAR SEAT FOR 3 YEARS AND NEVER HAD AN ACCIDENTWITH IT UNTILNOW. WE WERE SITTING AT A RED LIGHT AND GOT REAR ENDED BY A BIG PICK UP TRUCK SMASHING OUR TRUNK IN AND LIFTING OUR BACK END OFF THE GROUND. OUR ONE YEAR OLD WHO WAS IN THIS CAR SEAT WAS REAR FACING AND LATCHED IN CORRECTLY WEARING A LIGHT FLEECE (NO PUFFY JACKET.. WE ARE VERY CAREFUL TO FOLLOW EVERY CAR SEAT RULE). DURING THE ACCIDENT HER TOP LATCH CAME UNDONE! THE ADULT SITTING NEXT TO HER WITNESSED THE TOP HALF OF HER BODY FL…”
NHTSA complaint #10937484, 2016 · crash · 5 injury(ies)

“BRITAX PINNACLE CLICKTIGHT, INSTALLED FOLLOWING INSTALLATION INSTRUCTIONS IN BOOSTER MODEL IN 2015 TOYOTA SIENNA MIDDLE-ROW, SEATBELT DOES NOT RETRACT, LEAVING CHILD SUSCEPTIBLE TO SEVERE INJURY IN CASE OF CRASH. I CONTACTED BRITAX VIA WEB FORM AND CALLED BRITAX. BRITAX ACKNOWLEDGED IN THEIR EMAIL RESPONSE THAT FAILURE OF SEATBELT TO RETRACT SOMETIMES CANNOT BE REMEDIED, AND ON THE PHONE THE BRITAX CALL CENTER REPRESENTATIVE ACKNOWLEDGED FAILURE OF SEATBELT TO RETRACT IN BOOSTER MODE OCCURRED ALSO ON THE BRITAX PINNACLE PRODUCT THE CALL CENTER REPRESENTATIVE WAS TESTING ON DURING OUR CALL. T…”
NHTSA complaint #11062797, 2017

Seats 3 1 injury

“I STOPPED AT A GAS STATION AND WAS PARKED WITH THE CAR ON, AND I REACHED UNDER MY FRONT PASSENGER SEAT (MANUAL SEAT) AND RECEIVED A 20 AMP SHOCK FROM ONE OF THE WIRES UNDER THE SEAT. RESULTING IN MY DISLOCATING MY SHOULDER FROM THE MUSCLE SPASMS. TAKING IT INTO DEALERSHIP TOMORROW MORNING BUT AFTER TALKING WITH THEM THEY DONT HAVE ANY IDEA WHAT COULD HAVE CAUSED IT.”
NHTSA complaint #10970614, 2017 · 1 injury(ies)

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. THE CONTACT STATED THAT THE MIDDLE ROW SEAT BEHIND THE DRIVER SIDE SHIFTED INADVERTENTLY. THE DEALER DIAGNOSED THAT THE SEATS NEEDED A BRACKET TO KEEP THEM FROM SHIFTING. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 15,000.”
NHTSA complaint #10946390, 2016

“SEAT GETS STUCK TO BASE AND DOES NOT COME OUT. I HAD TO FORCEFULLY TAKE MY 1 MONTH OLD OUT OF THE SEAT AND IN COLD HOLD HIM IN HAND TO TAKE TO DR OFFICE. IT CAN BE FRIGHTENING IF THERE IS ACCIDENT, AND CHILD NEEDS TO BE TAKEN OUT”
NHTSA complaint #10818339, 2015

Vehicle Speed Control 3 1 crash 3 injury

“TL* THE CONTACT OWNED A 2015 TOYOTA SIENNA. THE CONTACT STATED THAT THE CRUISE CONTROL FAILED TO DEACTIVATE WHEN THE BRAKE PEDAL WAS DEPRESSED. AS A RESULT, THE VEHICLE WAS INVOLVED IN A FRONT IMPACT COLLISION. THE AIR BAGS DEPLOYED. THE CONTACT SUSTAINED A SEVERE HEAD INJURY, THE FRONT SEAT PASSENGER SUSTAINED A BROKEN NOSE AND CRACKED RIBS, AND THE REAR SEAT PASSENGER SUSTAINED MINOR INJURIES. MEDICAL ATTENTION WAS REQUIRED. A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED AND TOWED TO A SALVAGE YARD. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 13,…”
NHTSA complaint #11104018, 2017 · crash · 3 injury(ies)

“I was at a stop light when I slowly started to lift my foot from the brake pedal. The engine started revving up and accelerate. I pressed the brake pedal normal , then harder when it would not stop revving. I looked down to see if I was hitting the gas pedal by accident. I was not, about after 5 seconds it stop revving. I went about a foot and nobody was in front of me. I going to have it checked out by my dealer. This happened before and I thought it was driver error .When I thought I was hitting the gas pedal and brake pedal. I searched for incidents like mine, but could not find something e…”
NHTSA complaint #11475590, 2022

“MY SIENNA VAN SOMETIMES RESPONDS VERY LATE TO ACCELERATION. THIS BECOMES A PROBLEM ON HIGHWAYS SPECIFICALLY DURING THE MERGING. ACCELERATION PADDLE HAS TO BE PRESSED VERY HARD, FOR FIRST FEW SECONDS THERE IS NO RESPONSE FROM ENGINE THEN LATTER IT SUDDENLY ACCELERATES. THIS MAKES YOU MISS JUDGE THE TIME REQUIRED TO MERGE ON HIGHWAYS AND CAN CAUSE ACCIDENTS. THIS HAS BEEN HAPPENING SINCE FEW MONTHS. I AM PROVIDING TENTATIVE DATE BELOW.”
NHTSA complaint #11316319, 2019

Visibility 3

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE THE VEHICLE WAS PARKED IN THE DRIVEWAY, THE REAR PASSENGER SIDE QUARTER PANEL WINDOW EXPLODED WITHOUT WARNING. THE DEALER (COURTESY TOYOTA OF BRANDON, 9210 E ADAMO DR., TAMPA, FL 33619, (813) 639-8045) WAS CONTACTED, BUT THE VEHICLE WAS NOT TAKEN IN FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 37,857.”
NHTSA complaint #11112097, 2018

“SUNROOF SPONTANEOUSLY BURST ON JUNE 6, 2018, AROUND 7:25PM, MY FAMILY AND I WERE HEADING HOME A STORE, GOING NORTH ON MO-65 AT ABOUT 65 MPH IN SPRINGFIELD, MO. JUST SOUTH OF BATTLEFIELD RD, WE HEARD A LOUD "POP" SOUND. WE THOUGHT OUR DAUGHTER HAD HIT HER METAL THERMOS AGAINST THE BACK WINDOW. WHEN WE ARRIVED HOME, HOWEVER, I HEARD A CRACKLING SOUND AND TRACED IT TO THE SUNROOF, WHICH WAS SHATTERED (LIKE A SPIDER WEB) AND BULGING AT THE TOP. SINCE THEN, AS OF 9AM THE FOLLOWING DAY, IT HAS CONTINUED TO BULGE MORE, WITH A COUPLE OF SMALL PIECES OF GLASS HAVING POPPED OUT ONTO THE TOP OF THE…”
NHTSA complaint #11100338, 2018

“TL* THE CONTACT OWNS A 2015 TOYOTA SIENNA. WHILE DRIVING VARIOUS SPEEDS, BOTH THE DRIVER AND PASSENGER SIDE VIEW MIRRORS BECAME LOOSE, WHICH CHANGED THE DRIVER'S FOCUS OF THE ROAD. BYERS TOYOTA IN DELAWARE, OHIO WAS MADE AWARE OF THE FAILURE AND STATED THAT BOTH MIRRORS WOULD NEED TO BE REPLACED. IN ADDITION, THE DEALER STATED THAT THE VEHICLE WAS OUT OF WARRANTY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 20,000.”
NHTSA complaint #11053563, 2016

Chest Clip 1

“I bought this carseat in March and began using it August 2nd for my infant who was born July 31st. The straps have slowly become an issue. We try so hard to tighten the straps but to no avail. This puts my child at risk if we were to get in accident as he is not secure and the straps are still loose. I did reach out to graco who informed me I had to do a warranty claim. I am not sure yet if thet plan to do anything in regaurds to this issue.”
NHTSA complaint #11557037, 2023

Equipment 1

“TRYING TO DETERMINE IF MILEAGE ON 2015 TOYOTA SIENNA XLE [XXX] IS ACCURATE. CURRENT ADS FROM CARVANA SHOWING 23,377 MILES BUT ON OCT 5, 2019 COMPLAINS VIA VIN CHECK SHOWING THIS CAR HAVE 58,410 MILEAGE. IS THIS FRAUDULENT OR ACCURATE,. WANT TO BUY BUT NOT ANYMORE. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR”
NHTSA complaint #11309288, 2020

Forward Collision Avoidance 1

“I have had this car for 7 years. Started having issues a year ago and despite bringing it to Toyota 2x, they cannot tell me what the issue is. I will be driving on a regular flat paved road when the car will suddenly brake and pull me towards the side of the road. I get the ABS code sometimes and also the slip indicator light. I've explained this each x I've brought it in and they have told me it's due to me "driving too fast" or "accidentally having my foot on the brake." LOL I am a typical soccer mom and drive conservatively and don't brake when I don't have to. It will do it on curving ro…”
NHTSA complaint #11652418, 2025