Toyota Sienna Complaints

9,048 consumer complaints on file.

#11691968October 7, 2025
ENGINE
Coolant leaking from rear of the engine through the head gasket. Vehicle struggles to accelerate beyond 55mph or 80kmph. A quick search on the internet shows that this is a frequent occurrence in this 3.5L V6 engine from Toyota model years 2011 through 2017.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691531October 6, 2025
AIR BAGS, STRUCTURE:BODY, SUSPENSION
Keeps bottoming out suspension is specification is stated at 5.6 inches and I measured 3.3/4 unloaded never get a response on my complaints from my last repair and resolution on what they admitted that suspension was too low and wouldn’t put it in writing only saying that vantage mobility saying that it’s height requirements are as stated by vantage but no mention of ground clearance that I wanted them to verify that it’s specifications are stated at 6.5 inches and i measured 3 3/4 empty then they tell me not to go by specs and I’m a retired from wright Patterson Air Force base in the engineering department with logistics command and I’m like really guys you have to to have a specifications for a engineered system and they can’t even call back after they admit you have to go by specs! And then the authorized repair specialist tells me i had a bad brace on the front tire that was welded wrong and didn’t even mention it on the invoice or reported it to vantage mobility to call me about anything I had concerns about ?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691232October 3, 2025
ENGINE
The contact owns a 2017 Toyota Sienna. The contact stated that occasionally while driving approximately 35 MPH, the vehicle lost automotive power before jolting forward. There was an unknown warning light illuminated. In addition, the contact stated that the failure had progressed over time. The vehicle was taken to a local independent mechanic; however, the cause of the failure was unknown. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 69,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11689178September 23, 2025
STRUCTURE:BODY:HATCHBACK/LIFTGATE
The contact owns a 2025 Toyota Sienna Hybrid. The contact stated that the rear liftgate appeared to show a design flaw, and the left and right sides of the liftgate appeared to be misaligned. The contact stated that the liftgate door was difficult to open manually or electronically. Several dealers were made aware of the failure on several occasions, but were not offered any assistance. The vehicle was taken to an independent mechanic who acknowledged the failure. The independent mechanic stated that the entire back panel was warped and that the door hinges were misaligned. The manufacturer was notified of the failure on three separate occasions but offered no assistance. The vehicle was not repaired. The failure mileage was approximately 10,000. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688111September 18, 2025
SEAT BELTS, SEATS
Driver side passenger 2 nd row seat belt stopped working. Won't clip as needed leaving us unable to use seat. This is a safety issue as we are not able to use the seat as needed as one is not able to strap in. This triggers the sensor and this a driving violation. Problem has been reported. Vehicle has been reported and still pending to be replaced. Unkown when issue can be resolved. Passenger seat on the second row was stuck upon purchase. Dealer made aware. they claimed a sock was stuck on railing which was not possible as issue was reported before they could schedule for vehicle to be inspected. Such sock did not exist when incident was reported. Sock was not purchased until day before taking vehicle to schedule appointment. Tension is still there but agency said it is working properly.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688120September 18, 2025
UNKNOWN OR OTHER
The seller selling vehicle to me with incorrect miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687324September 15, 2025
STEERING
The battery light came on suddenly and the power steering went out making it extremely difficult to steer the vehicle. An accident was narrowly avoided. We replaced the battery, alternator, and serpentine belt. The problem resolved for over 6 months, then reappeared. It starts with no issue, is charging properly, the serpentine belt is intact. The power steering will come on and go off sporadically, the only warning being the battery indicator on the dash that comes on first. This creates a substantial hazard and risk as the steering is severely impacted with little warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686996September 12, 2025
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2012 Toyota Sienna. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 48,230. It was later discovered that the mileage on the Title was 241,080.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686895September 12, 2025
UNKNOWN OR OTHER
On various occasions while braking there is a sudden acceleration that occurs. Generally lasting less than 5 seconds. More noticeable going down hills but has occurred on standard driving. Date provided is most recent occurrence after service from Marietta Toyota for recall and 25k service.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686702September 11, 2025
SERVICE BRAKES
Brakes will intermittently lurch when coming to a stop with normal braking pressure. The lurch feels like the brakes have stopped working and the driver has to press harder on the brake to avoid rear ending the vehicle in front. Brake pedal feels normal the entire time. Dealership is unable to duplicate on a test drive since the issue is intermittent.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686730September 11, 2025
POWER TRAIN
My 2017 Toyota sienna has a whine noise coming from the transmission. Brought it to the dealer I have done everything at for this van and they say it’s the transmission and it will cost more than it’s worth. There’s a CSP-zjc but my vin isn’t on there. It’s presenting the same exact problem as the CSP. Unbelievably, Toyota CARES isn’t doing a “good will” service fix. Very disappointed in their customer service
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686400September 10, 2025
VISIBILITY/WIPER
Wobbling vibration on exterior mirror, driver side. It looks like incoming vehicles shake sideways. This happens on any bumpy road and it is easier to observe at highway speeds. Purchased on [XXX]. Vehicle is available for inspection. The distorted image resulting from mirror wobbling affects driver's awareness of surroundings, visibility gets worse at nights/rain due to blurred lights. This can lead to an accident. My regular dealerships in Milford, CT have confirmed the issue but have not been able to provide a fix. They say the vibration is normal. I do not believe so as the passenger side mirror never has issue like that. I have first noticed this issue a couple of weeks when driving on highway. Posting my case online has gotten at least 4 people reporting the same issue with the Sienna since 2021 in multiple trims. Similar issue on RAV4 reported on [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686058September 9, 2025
VISIBILITY:SUN/MOON ROOF ASSEMBLY
The contact owns a 2023 Toyota Sienna. The contact stated that while driving 65 MPH, there was a popping sound coming from the sunroof, and the contact discovered that the sunroof had shattered. Neither the dealer nor an independent mechanic was contacted. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 70,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685675September 8, 2025
SERVICE BRAKES
On rare occasions (about once every 500 miles), when uniformly applying force to the brake pedal, the deceleration suddenly ceases and the vehicle seems to jerk forward. To a passenger, it feels like the driver's foot slipped off the brake pedal, but the driver continued to provide the same uniform force to the brake pedal and lost all deceleration. Typically, the driver is startled and presses significantly harder on the brake pedal jerking all occupants forward. The brakes re-engage and continue the deceleration at a much higher rate. Toyota addressed this problem with TSB 4724 which involved reprogramming the brake actuator assembly. This corrected the problem for about 3 months, but it is now occurring again. When the car was taken to the Toyota dealer again, the technician stated that TSB 4724 was cancelled, he could not duplicate the action (even though he was told it only happened on rare occasions), and claimed that the "brakes function properly as they should." Fortunately these loss of braking incidents have only occurred on dry pavement so that the driver did not lose control of the car when slamming on the brakes to compensate for the loss of deceleration. Coming down a hill on a snow covered road could have caused the vehicle to slide into an oncoming lane. It is my speculation that there is a null spot that exists during certain circumstances which causes there to be a "gap" between when this hybrid vehicle transitions between the dynamic hybrid brake and the friction wheel brake. Both braking systems independently work fine, but the transition between them (on rare occasions) does not occur continuously. This causes the driver to experience an unexpected loss of braking which, under the right conditions, could cause the driver to loose control of the forward motion of the car. As an engineer, I feel it is unacceptable for a safety system (braking) to not properly operate 100% of the time! On a Toyota owner's site, others have seen the same.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685450September 6, 2025
VISIBILITY/WIPER
The driver side mirror vibrates at highway speed enough as to make it useless to observe cars behind you. Moving the mirror around does not help.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685365September 5, 2025
STRUCTURE, ENGINE
The contact owns a 2014 Toyota Sienna. The contact stated that while driving 70 MPH, there was an audible alarm coming from the vehicle, alerting the contact that the door was ajar. The passenger’s side slide door opened independently while the vehicle was in motion. The vehicle was modified to accommodate a ramp for the contact's two wheel-bound children. The contact pulled over to the side of the road and closed the sliding door. The contact's husband tied the door to prevent it from opening independently again. The check engine warning light was intermittently illuminated. The vehicle was taken to the dealer, where it was inspected. The contact was informed that two latches had corroded and needed to be replaced. The vehicle was not repaired. Upon further investigation, the contact related the failure to NHTSA Campaign Number: 16V858000 (STRUCTURE). However, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 99,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684584September 2, 2025
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2013 Toyota Sienna. The contact discovered a mileage discrepancy after purchasing the vehicle. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 146,377. It was later discovered that the mileage on the Title was 34,428, but the Carfax mileage was 238,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683212August 26, 2025
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
Wobbling vibration on exterior mirror, driver side. It looks like incoming vehicles shake sideways. This happens on any bumpy road and it is easier to observe at highway speeds. Also, every time I close the door, mirror shakes as it its loosely attached. Driverside mirror has too much play and shakes. There is no issue with play and shakes with passenger side mirror. Purchased on [XXX] Vehicle is available for inspection. The distorted image resulting from mirror wobbling affects driver's awareness of surroundings, visibility gets worse at nights/rain due to blurred lights. This can lead to an accident. My intuition when I first noticed was going to be a cold break, but I realized that it was the mirror wobbling causing it. The car coming behind was far enough and I was able to react. Summary of actions and requests to Toyota: I went to my dealership Crestmont Toyota, Pompton Plains, NJ and they have confirmed the play and wobble issue, however, they said it's the same thing with other 3 Sienna's they had on LOT. Dealership informed that this is how its manufactured and they can't do anything until TOYOTA issues a recall for this problem. First occurrence: Day one, driving back from the dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681131August 17, 2025
POWER TRAIN
"I've owned the vehicle for five years, and recently I started hearing a whining noise coming from the transmission. After doing some research, I discovered that I'm not alone in experiencing this issue. The dealer told me that the transmission itself is the problem and recommended replacing the entire transmission. However, a second opinion suggested that this kind of noise isn't normal. I'm worried about safety because, although it's just a whine right now, I fear it could fail unexpectedly. I have a child in a wheelchair, and ensuring my vehicle's safety is very important to me."
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680632August 14, 2025
ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE
The contact owns a 2023 Toyota Sienna. The contact stated that while driving, the fuel gauge indicated there was 121 miles of fuel available. The contact stated that within twenty miles, the fuel gauge indicated that the fuel tank was empty. The contact stated that when the gauge indicated 170 miles available, the fuel usage decreased quickly. In addition, the contact stated that the failure had occurred several times. The contact stated that the vehicle was purchased and modified for transporting the contact’s disabled son. The Freedom Motor company provided the modification requests. The contact stated that the vehicle was taken to the modification company several times, however no assistance was provided. The contact was advised to always keep the fuel tank full. The contact stated that it was very hot and dangerous to be driving a vehicle and running out of fuel while transporting her disabled son. The manufacturer was not made aware of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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