2021 Toyota Redundant Sienna seats problems

Filed Jan 18, 2026 · Body, Seat belts · CA

I purchased a 2021 Toyota Sienna from United Access Mobility in Sacramento. The vehicle was sold and delivered with multiple serious pre-existing safety defects. The exhaust system was unsafe. The catalytic converter had been stolen prior to sale and replaced with a non-OEM catalytic converter that was improperly welded and mounted too low. This caused exhaust leaks, loud exhaust noise, poor acceleration, and safety concerns including potential exhaust exposure. Multiple professional repair facilities confirmed the exhaust system defect. The electrical system was defective. The vehicle was sold with the wrong size battery that was not properly secured. This caused electrical instability, warning lights, and vehicle failure. The battery was not adequately supporting the vehicle’s electrical system. The airbag and restraint system showed warnings caused by third-party wiring, indicating potential airbag or seatbelt malfunction. The fuel system was defective. The gas cap was broken and required tools to refuel the vehicle. Structural and body components were unsafe. A bumper bracket was loose and flapped while driving, and the passenger seat was unstable. Accessibility systems were also defective, including lift and door malfunctions affecting safe operation. United Access was notified immediately but did not correct these safety defects. Instead, they attempted to have the vehicle repaired using an extended warranty for pre-existing conditions. The vehicle was not safe to operate at the time of sale.

Filed Sep 17, 2025 · Seats · NC

2nd row passenger seat recline does not work. My seat is very reclined now causing the 2nd row passenger to not be in the optimal position for SRS airbag performance that may result in possible death due to head impact during a side collision. Toyota likely has enough data to issue a TSB to resolve this issue preventing serious injury or death to one of my children.

Filed Aug 19, 2025 · Airbags, Seats · WA

I purchased a 2021 Toyota Sienna (VIN: [XXX] ) from an authorized Toyota dealer in June 2024. At the time of sale, I was assured that the open safety recall (23TA15) would be repaired soon. More than a year later, no remedy has been offered, leaving me and my family driving an unsafe vehicle. Toyota’s own phase schedule indicates repairs should already be available in Washington State, yet I have been repeatedly told no repair exists. This has caused serious safety concerns, financial hardship, and loss of trust. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 2, 2025 · Brakes, Seats · TX

My van been giving me some weird issues lately. When I’m going downhill, my brakes don’t seem to work well! I have to push it all the way down, like a spongy. It doesn’t break until I put on the emergency brake. the seat broke only weighed 185 pounds! the wiper blades don’t do a great job cleaning the driver’s side after I bought new ones. Dealership wipers

Filed Mar 25, 2025 · Seats · MD

I am writing to report a significant safety concern involving the second-row seat in the 2021 Toyota Sienna. The issue involves the seat base not locking securely into the floor. As a result, the seat remains unstable and sits at approximately a 45-degree angle, rendering it unsafe and unusable. This malfunction poses a serious risk to passengers, especially during braking or a collision, as the seat is not properly anchored. It also prevents the safe installation of a child car seat or booster. Despite this being a clear safety issue, there has been no recall issued by Toyota, and customer reports online suggest this is not an isolated incident. The inability of a seat to lock into its designated position is a fundamental failure in vehicle safety design. The vehicle has not been inspected and no warning of the issue was given.

Filed Mar 11, 2025 · Seats · IN

Toyota Sienna has 3rd row seats recall already. While I was at dealership I explained that second seats are also rattling when they were fixing the 3rd row recall. My concern is that since they have safety concerns on that they should investigate all the seats for safety.because I’m experiencing second row issues with my vehicle. Terrible dealership! Called corporate office Toyota they were also no help! Please! please!. My request please have Toyota investigate the second row seats as well..

Filed Jul 3, 2024 · Seats · NJ

the bottom/floor of the center console between the 2 front seats getting warm or hot everytime I drive the car for a while

Filed Feb 7, 2024 · Seats · IN

The contact's client owns a 2021 Toyota Sienna. The contact stated that she was unable to place a car seat in either of the outboard third row positions due to the angle of the seat edge. There was more than twenty percent of the car seat hanging off the edge. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was unknown. The VIN was not available.

Filed Sep 8, 2023 · Seats · MI

Third Row Seats does not stay stowed and while driving over a hump the seats ended up moving away from the potential stowed position and locked itself in the upright position. the noise was so loud that we thought something had banged on the car, but then we realized that the seat had just moved to the upright position. a little bit of research indicated other drivers reporting the same issue without any fix until date. The risk is if the seat decides to move and there is somethin on the seat in stowed position that can become a projectile. Also if the middle seats are reclined at the farthest position, it will cause an impact. Toyota dealership does not have any solutions for this issue and currently the third row seats are held down with a bungee cord.

Filed May 17, 2022 · Seats · NC

3rd row seat components in 2021 Toyota Sienna 60/40 configuration. Both portions of the seats do not stay in the stowed position. Initially I assumed it was user error such as not pushing them down all the way or something not latching. After evaluation, the 2021 Sienna 3rd row seats do not have a way to latch down. When stowed and in motion the back portion of the seats begin to lift and when breaks are engaged, the car turns or slows down each section of the seats will thrust forward and lock into the seated position. The back being loose and starting to rise seems to give the bottom portion momentum to pop up quickly. This has caused multiple objects flying if they are not heavy enough and are resting on the seat stowed. Additionally, the reason to bring real awareness is that my son was sitting in the single seat and the other side had been placed in the stowed position, while driving the seat lunged and caught my son’s elbow. The dealership evaluated and stated they do not see a definitive cause, they are replacing all parts related under warranty to trouble shoot and hopefully find an issue. The fact that there is no latching mechanism to hold them down is a hazard altogether. This needs to be addressed for the safety of passengers. All that went through my head when my son was hit was “what if his arm was down, it would have gotten his fingers or caused serious damage