2022 Toyota Redundant Sienna

On May 18, 2025, 4:00pm, my wife was applying brakes to stop for a stop sign at a T-intersection. Suddenly, the car lurched forward and accelerated uncontrollably. Despite her attempts to stop, her vehicle crossed four traffic lanes, vaulted over curb, nosedived into turf, and then crashed through brick wall into a fire station. My wife was unable to brake and stop the forward progression of the vehicle. My wife steered to avoid hitting trees but could not avoid the brick of the fire station wall. The airbags did NOT deploy. My wife sustained back injuries and bruising of the front torso. Her right foot is bruised from pressuring the brake pedal. The vehicle sustained heavy damage as did the fire station.

The brakes temporarily let up and the vehicle lurches forward before the brakes re-engage, resulting in an unpredictable, delayed stop. It is unpredictable and can result in the driver's stop being dangerous. This usually takes place at stop lights, stop signs, and parking spots, where the vehicle is under 20mph. The car sometimes does not brake as it should, meaning that the nose of the vehicle or the majority of the vehicle will extend past a stop sign or stop light, or contact in a parking lot could occur. The dealer was unable to reproduce the problem. The dealer inspected the vehicle twice. They turned the rotors (unrelated to the issue) the first time I took it in. The second time I took it in, I made them apply the T-SB 0047-24 software update. The T-SB 0047-24 update says that some drivers might be "sensitive to the momentary transition from regenerative braking to hydraulic braking under certain driving conditions." The update to the software was designed to "improve the feeling" for the condition. The brakes are not slowing the vehicle predictably. There are no warning lights or errors given by the vehicle.

During braking the vehicle will lose braking force and “lurch” forward before regaining braking power. It usually happens at about 15-20mph decelerating. There are no warning lights associated with this. The dealer recommended we brake harder to prevent the issue. It still happens and the extra braking force leads to unnecessary wear on braking and suspension components. This caused us to have a near-mis accident while braking in traffic. It also causes quite a distraction during deceleration because it’s unpredictable and uncomfortable when it happens.

When coming to a stop at various speeds the car will sometimes surge during the braking process. It feels like either a brief acceleration or a release of the brakes. It then continues to brake as normal. It is an intermittent issue and can occur when coming to a slow stop or at faster stops. It started in November of 2023, and started happening only once a week or so. As time went on, it became more frequent until it was happening several times a day. By the summer of 2024, the Toyota dealership was finally able to replicate it, and they fixed it with a “computer update” as best I understood. The problem was fixed for a while but began again a few months later. The frequency at this time , early 2025, is every 1-2 days. I have returned multiple times to Toyota, and they have no fix since they have not been able to replicate it this time. I have pointed out to them that they did replicate it when they had previously fixed it. This issue presents a danger when the driver is coming to a stop. The first time it happened my reaction was to move my foot to the accelerator and I jumped a small curb. Although I am prepared now for this to happen, it is possible my instinctive reaction could happen again, resulting in a collision or injury. There are multiple forums and I see multiple complaints on this website, but I see no investigation cases. Please help me understand why this safety issue has not been investigated.

The complaint was the failure mode of a no start condition while traveling. The issue was related to partial or improper function of the DSM which caused a drain on the battery and battery cell damage requiring full replacement. The fix was a software update to prevent recurrence which cost several hundred dollars (according to the Toyota Service Bulletin or TSB-0089) along with approx $200 for diagnostic analysis. The TSB work would have been covered if we had not exceeded 36,000 miles. We had the vehicle for 3 years and 1 month. I do not understand the mileage impact to the coverage of a firmware update as this was related to a no start condition and could have occurred when we stopped at a rest stop area as we were traveling across country at the time. I am very disappointed with the failure and the impact of getting several jump starts for our vehicle as well as the couple days waiting to get scheduled into a dealership and 4 hours to get fixed.

Back seats do not lock down when folded. This almost caused my pet to get hurt when going over a speed bump sent them flying up. Seats should lock down when folded to prevent injury to pets. Also almost hurt by daughter in backseat when the single seat came up flying up and re-latched into up position from folded position hitting her arm in the process.

What component or system failed or malfunctioned, and is it available for inspection upon request? Toyota Integrated Dashcam, and yes its available to review. How was your safety or the safety of others put at risk? None Stop beeping Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, was replaced once under of warranty and failed again. 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, failed again after 30,000 miles

Vehicle will not start every single winter! Has been in the toyota repair shop multiple times. Told me it was possibly the kick sensors that are activated in the cold, stay on and then run battery dead. It is currently 20 degrees outside, but was parked in the garage all night, and STILL won't start in the morning! Completely unreliable. Nearest dealership is 1 hour away from me. Kick sensors were replaced last year, battery has been checked. Still happens. The vehicle is completely unusable and unreliable. Other issue- battery is in the back of the vehicle and you cant open the back door to access the battery to charge it! You have to get an external battery charger, charge front battery to open back door then jump back battery. If I was out and about I would have no way to do that. Absolutely unacceptable and a reoccurring problem. This needs recalled. Many others online report the same issue. Please respond.

When pulling out of a parking lot, the accelerator disables leaving the car unable to move in the middle of the rode for a few seconds. The happens intermittently and usually when there is traffic going both ways in the area. This has happened several times but has not been replicated with a dealership employee during test drive. After the accelerator disables, it will enable after a few seconds. It has left me sitting in the road with cars honking at me. Van is currently in the shop. Brake pedal was not deployed at the same time of acceleration.