65 of the
550 complaints filed about the Toyota Sienna Hybrid
are about the other systems —
12% of everything owners reported.
The worst model year for it is 2025.
The authorized Toyota dealership has declined warranty coverage for the air conditioning system. The unit exhibits intermittent cycling between warm and cold airflow on the highway. Although the control panel indicates a minimum temperature of 60°F, performance remains inconsistent; the temperature gauge reads 67°F.
NHTSA complaint #11757095 — an unverified report by a vehicle owner.
The authorized Toyota dealership has declined warranty coverage for the air conditioning system. The unit exhibits intermittent cycling between warm and cold airflow on the highway. Although the control panel indicates a minimum temperature of 60°F, performance remains inconsistent; the temperature gauge reads 67°F.
NHTSA complaint #11757097 — an unverified report by a vehicle owner.
I am reporting a potential safety issue involving the passenger-side power sliding door on a 2022 Toyota Sienna. On XXX my [XXX] child was outside the vehicle in a wagon while the passenger-side sliding door was closing. He reached toward the vehicle, and his fingers became trapped in the sliding door, closest to the front passenger door. The power door did not stop or reverse after contacting his fingers. It continued closing, clicked shut, and fully latched with his fingers caught in the door. We immediately opened the door and removed his hand. Thankfully, he was not seriously injured, but the incident had the potential to cause a severe hand or finger injury. I am concerned that the obstruction-detection or pinch-protection system did not detect an infant’s fingers in this location. I am submitting this complaint so the incident is documented and can be compared with any similar reports involving Toyota Sienna power sliding doors. Vehicle: 2022 Toyota Sienna VIN: [XXX] Incident date:XXX Incident location: [XXX] Affected component: Passenger-side power sliding door INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11754257 — an unverified report by a vehicle owner.
Vehicle safety SOS button is not functioning properly. When the SOS button is depressed in case of emergency, the vehicle notifies user at the emergency system is un operational. Toyota includes this for 10 years from the date purchase and my vehicle is a 2021 making this feature active till 2031. By having the SOS button nonfunctional occupants of the vehicle, which may rely on this feature may sustain injury or death by this feature not operating correctly in the event of an accident.
NHTSA complaint #11752014 — an unverified report by a vehicle owner.
While driving on the freeway with my small children in the backseat a loud pop sounded and glass from the moon roof came shattering down upon us. The glass hit my face, arms, hair, and fell into my seat and all around the interior of the car. Though glass fell along my face my vision was not obstructed and I was able to safely exit the freeway without accident. The glass, though did make its way towards the backseats, did not hit my children. There was no warning or issues with the car or window.
NHTSA complaint #11750344 — an unverified report by a vehicle owner.
We purchased a used 2025 Toyota Sienna a few weeks ago. The other day, my husband put his phone and wallet into the center console compartment and closed the lid. When we went to retrieve those items, the lid only opened partially. We were finally able to remove the wallet but the phone had slid down into the compartment where the door to that console opening slides into when you open and close it. The lid would not open all of the way and blocked our access to that space when you opened it. The only way to remove the phone was to take it to our local dealership where they spent hours removing seats and pieces of the console to remove the phone from the inaccessible area and then put everything back together. This cost us roughly four hours of work time and $311.99 out of our own pocket. Apparently this is a known issue with this vehicle and is a design flaw where items of the right size (including iPhones) can slide into that compartment while the lid is closed and then are inaccessible.
NHTSA complaint #11750377 — an unverified report by a vehicle owner.
1. The rear underbody air conditioning (AC) lines and their supporting structural mounting brackets have failed due to severe corrosion. Specifically, a heavy steel mounting bracket has rusted excessively, causing localized galvanic corrosion at the point of contact with the adjacent aluminum AC lines. This structural and material failure caused the aluminum line to erode, crack, and leak high-pressure chemical refrigerant into the environment. The vehicle, failed components, and detailed photographic evidence of the galvanic corrosion and rusted bracket are fully available for inspection upon request. 2. The failure presents multiple safety and health hazards: •Environmental and Inhalation Hazard: The high-pressure leak of mobile air conditioning refrigerant (R-1234yf or R-134a) releases a hazardous chemical compound directly beneath the cabin. •Defrost and Visibility Failure: The rapid loss of system pressure completely disables the vehicle’s climate control and window defrosting/demisting capabilities, severely compromising driver visibility during inclement or humid weather. •Structural Degradation: The severe rust and erosion of the underbody mounting bracket mean structural components are failing prematurely on a 2021 model, creating a risk of loose or dragging underbody debris at highway speeds. 3. The physical failure (loss of refrigerant and severe physical corrosion) has been visually confirmed. However, the Toyota dealership service center actively refused to document the cause. However, photographic evidence clearly reveals the distinct, localized galvanic corrosion occurring exactly where the rusted steel bracket contacts the aluminum line. Further, Toyota’s highlander model had this same problem which was addressed through T-SB-0021-26. 4. The vehicle was inspected by an authorized Toyota dealership which acknowledged the leak but refused to provide a written technical breakdown. 5. Rust, corrosion, and loss of cooling ability.
NHTSA complaint #11745261 — an unverified report by a vehicle owner.
Center console malfunction. They were always items get slipped into it and unable to close which cause hazardous as the console unable to opem or close
NHTSA complaint #11744678 — an unverified report by a vehicle owner.
The center console between the front seats has a design defect. When small objects such as a credit card, key fob, or coin are left on the flat surface of the console, they can slip through a gap into the internal storage compartment. Once inside, the object becomes lodged and physically blocks the console lid from opening, locking the owner out of the storage compartment. The console must be partially disassembled to retrieve the object. This is a design flaw, not operator misuse. The flat surface visually appears usable, and the owner's manual does not warn against placing objects there. This defect is widely reported in the "Toyota Sienna 2025+" Facebook group (the largest online community of current Sienna owners), where multiple owners report the same problem. The defect is therefore not isolated. The vehicle was purchased new on 01/22/2026 from Nourse Toyota. The dealer declined to repair and referred me to Toyota. Toyota Customer Experience (Case ID XXX, contact: [XXX], 06/04/2026) declined to offer a remedy. On 06/10/2026, the Toyota Brand Engagement Center (Case #XXX) confirmed in writing that no recall or Customer Support Program covers this issue, and that the diagnosis does not indicate a manufacturer defect. No warning lamps or messages appeared. The defect is mechanical. I request NHTSA review this defect for investigation and potential recall action. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11743184 — an unverified report by a vehicle owner.
While applying the brake at the stop light. (25 to30 mile speed limit zone) The Toyota hybrid sienna start to accelerate for split 5 or more seconds. I have to apply the brake harder even though I was already applying the brake to slow down because the light was red and the are several cars in front of me. For the first time I was scared thinking about rear ending some one in front of me or the Toyota Lexus incident where it accelerated and everyone died flashing through my mind. It was not a good feeling.
NHTSA complaint #11739982 — an unverified report by a vehicle owner.
Stepping on brakes - Car slows then accelerates a few seconds and lunges forward a couple of feet. Extreme safety issue. This occurred yesterday with my sister in the car and we almost rear ended the vehicle stopped in front of us. I have complained to the Cumberland Toyota dealership in the past and was told if they cant recreate the issue and it doesn't happen all the time there is no way to fix the issue. Yesterday I was almost in an accident because of this faulty design/anomaly associated with my car. This lunging forward is not suppose to happen and I want it fixed Toyota needs to come up with a resolution before it kills me. I have purchased this vehicle new 2024 and it has been happening since purchase - NOW its really bad
NHTSA complaint #11738078 — an unverified report by a vehicle owner.
The recall on the 2nd row seat welding makes this row unusable per Toyota’s recommendation until they get a remedy. There is no estimated date on when the remedy will be available and Toyota is offering no solution to this. I have 2 small kids, one [XXX] and one [XXX] . I brought home my newborn in this car before the recall notice was sent out. It is our hybrid family vehicle and we cannot use it due to this recall and there is no remedy available for who knows how long. They have no offered me a loaner at the dealership near me plus they likely do not have a Sienna as a loaner because according to them Sienna’s are well sought out. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11736834 — an unverified report by a vehicle owner.
The affected component appears to be the rear seat / seat track recall system. I took my Toyota vehicle to the dealership / repair center in approximately October 2025 for recall-related repair, and the vehicle was then kept there for months. During that time, I was deprived of the use of the vehicle while continuing to make lease payments. I repeatedly contacted the repair center for updates but was not provided a clear repair completion date. Toyota and the dealership later claimed that the recall had been repaired only after the stated 60-day buyback review period had expired, yet NHTSA’s VIN lookup still showed the same recall as unrepaired for my vehicle. No credible current documentation was provided showing the exact recall repair completion date or the work performed. Under these circumstances, I am not comfortable accepting return of the vehicle. My children ride in the rear seat, and because this recall involves the seat / seat track area, I cannot reasonably be expected to trust the vehicle without clear proof that the recall repair was properly completed. I have also experienced a serious accident in the past, which makes this issue even more concerning to me. At this point, I have lost confidence in Toyota’s handling of this matter. I am seeking repurchase of the vehicle and fair final resolution.
NHTSA complaint #11731570 — an unverified report by a vehicle owner.
I bought a new 2025 Toyota Sienna Hybrid in Feb 2025 and shortly after, I was informed by letter by Toyota that there was a recall. We were informed NOT to use the second row. (Exactly why we bought a van!) I am STILL waiting for a remedy. Toyota has not offered a rental or any kind of assistance with us being out of a new van for OVER 1 YEAR. I am beyond discouraged and disgusted. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11731126 — an unverified report by a vehicle owner.
We were stopped at a stoplight. As soon as we stepped on the gas pedal, there was a loud clunk sound and plastic parts started flying out from under the car. We immediately pulled over. Oil was spilling out everywhere. The transmission oil pump was laying on the inside of the engine compartment. We had towed to Toyota. They diagnosed a bent piston went through engine which also caused a hole in the transmission. I had it towed for a 2nd opinion. Neither toyota or the 2nd opinion had ever seen anything like it. My mechanic also said there are a bunch of other suspension parts that were damaged due to the violent stop of the engine. There are a few of the same incidents online in chat rooms. The car is totalled and we are out of a car now.
NHTSA complaint #11730547 — an unverified report by a vehicle owner.
I am reporting an unreasonable delay in the remedy for NHTSA Recall 25V-668 (Toyota Recall 25TA12). My 2025 Toyota Sienna has been subject to Interim Notice 25TB12 for approximately 170 days. Per Toyota’s official safety instructions, I have been directed to ensure that 'no one sit in or use a child restraint in any second-row seat while the vehicle is in motion.' Despite this recall being active since October 2025, Toyota has failed to provide the necessary replacement seat rails or a firm repair date. This defect involves structural weld failures that pose a high risk of seat detachment in a collision. By rendering the primary passenger area of this minivan unusable for nearly 6 months, the manufacturer has caused a substantial loss of utility and safety. I am requesting NHTSA investigate the lack of remedy availability and Toyota’s failure to support owners who cannot safely use the vehicle for its intended multi-passenger purpose.
NHTSA complaint #11727268 — an unverified report by a vehicle owner.
Toyota has instructed owners not to use the second-row seats until a repair becomes available. As a result, the vehicle cannot be safely used for its intended purpose. I am a parent of three children, including an infant who requires a rear-facing car seat. Without the ability to use the second-row seats, the vehicle is unusable for my family. The vehicle has been in the possession of the dealership (AutoNation Toyota Weston, Florida) since December 22, 2025. As of today, the vehicle has been out of service for over 80 days, and Toyota has confirmed that there is still no repair remedy available and no timeline for resolution. I have been provided with a temporary Toyota RAV4, which is not comparable to a three-row family vehicle and does not accommodate my family’s needs. I continue to make monthly payments of approximately $900 through Toyota Financial Services for a vehicle that I am unable to use. This situation represents a significant safety concern and a substantial loss of use of the vehicle, with no resolution provided by the manufacturer.
NHTSA complaint #11724845 — an unverified report by a vehicle owner.
While driving on highway, on 3/11/26, car powered down. I had to coast to side of highway. I was able to turn vehicle on after several minutes, but SEVERAL system malfunction error messages (hybrid, accelerator, pre-collision, tpms, airbag, engine…) appeared. The vehicle would not accelerate beyond 10mph. Once I moved it to a safe location, I had the vehicle towed to the dealership. The dealership technician was able to replicate the issue during test drive. The technician apparently had the vehicle towed back to the dealership last night. The car has had other related issues since June 2024 when I bought it. The TPMS system, the accelerator system, and the airbag system have all malfunctioned independently. The accelerator system malfunctioned in Jan. I had to pay for a replacement fuse despite the warranty. The vehicle is modified with Braunability equipment for wheelchair access. These modifications are approved by Toyota and were completed by MobilityWorks. Aside from the vehicle itself being unsafe to drive, the passenger sliding door has had numerous problems. On 3/07/26, the door mysteriously slammed shut after opening and would not open again. These are all dangerous situations that could have resulted in fatal accidents.
NHTSA complaint #11724306 — an unverified report by a vehicle owner.
I own a 2025 Toyota Sienna affected by Safety Recall 25V668 involving second-row seat rails with suspected improper welds. Toyota sent a notice advising that no one should sit in or use a child restraint in the second-row seats until the repair remedy becomes available. However, there is currently no remedy available and no repair timeline. I have contacted both the dealership and Toyota multiple times over the past four months but have not received clear answers or a resolution. The dealership verbally told me I can continue transporting my children, which conflicts with the written safety notice from Toyota. I am a mother of six children and this vehicle is essential for transporting my family. Because the recall involves seating safety and there is no repair available, the vehicle cannot be safely used as intended. I am submitting this complaint due to lack of repair availability and lack of clear communication from the manufacturer.
NHTSA complaint #11722875 — an unverified report by a vehicle owner.