2024 Toyota Sienna Hybrid problems

Filed Oct 30, 2026 · Brakes, Driver assistance · CA · crash

While driving at very low speed on a residential street, my wife was braking when our Sienna struck an unoccupied parked Toyota Tacoma with the right front corner. She believes she was braking and the van did not slow as expected. The pre-collision system did not brake or warn. We have repeatedly noticed the van surge or lurch forward while braking at low speed, such as when pulling out of our driveway. We are aware of Toyota service bulletin T-SB-0047-24 on brake surge in 2021-2024 Sienna hybrids. Damage includes the right front structure, hood, fender and headlamp, with repairs estimated at about $19,900. The vehicle is currently at a body shop (Haws Auto Body, Lafayette, CA).

Filed Oct 30, 2026 · Brakes, Driver assistance · IN

I have been having issues with my 2024 Sienna XSE since about 6 months after getting it. The break surge, jump, lurch, slip, etc. so many different names people call it, is the issue and it needs a permanent fix! I had the ‘software update’ done from the bulletin that is out for this issue about a year ago and it finally went away…but only for about 3 months. Ever since then, it has gotten so much worse with time now. I wish I never got the update. It is happening much more frequently, like twice a week! It doesn’t matter about road type, turns, hills, etc. anymore as long as I’m breaking it happens. The slip is getting longer and not catching as quickly and I nearly hit a car that was stopped at a light yesterday because of the re-acceleration, and I was breaking with plenty of time.

Filed Oct 27, 2026 · MD

I own a Toyota Sienna and got a notification from Carfax that there was a recall on the car. I looked up the recall on Toyota's website and it confirmed there was a recall. I called my dealer--Jim Coleman Bethesda--and asked them if it was safe to drive, explaining that we have a [XXX] and [XXX] old and use both rows of seats. They told me it was "perfectly safe to drive," including in those two rows. Toyota has, however, separately stated that drivers should not use the second row of seats. Our dealer has now informed us that we can have a loaner, so this isn't an issue for us. But I'm alarmed that the dealership gave this inaccurate information despite my repeatedly pressing them that I was concerned that I had seen different things online. The dealership is who customers will call if they have safety questions and they should not be telling owners that it is safe to drive where Toyota has issued different guidance. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 24, 2026 · Brakes · CA

My name is [XXX]. I am an automotive Technician and I have completed hybrid vehicle system training. I have a certification of completion for the hybrid training.I work for XXX [XXX] maintaining and servicing a fleet of vehicles. I am contacting the federal safety agency regarding a safety concern with a 2024 Toyota Sienna Hybrid that I inspected. The vehicle has an intermittent braking concern. The driver reported that while braking, the vehicle sometimes seemed to move or jump forward instead of responding normally to the brake pedal. On one occasion, the driver reported that the brakes did not respond as expected and the vehicle nearly proceeded through a red light. I inspected and road tested the vehicle, but I was not able to duplicate the problem at that time. I also performed a full system scan and found DTC P162B87 in the Hybrid Control system. I contacted a Toyota dealership regarding the concern and also asked about Toyota T-SB-0047-24, which appears to relate to a transition between regenerative and hydraulic braking on certain Sienna Hybrids. The dealership told me that the bulletin does not apply to this vehicle’s VIN. Because this is an intermittent braking concern that could potentially affect vehicle safety, I would like to report it to the federal safety agency and find out whether there are other similar complaints or any additional information available regarding this issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 26, 2026 · Brakes, Driver assistance · GA · crash

Three (3) separate systems failed. 1. Upon seeing cars ahead of us slowing down, my husband pressed the breaks to slow down to avoid collision. When he pressed on the breaks, instead of slowing down or stopping the vehicle, the brakes failed to engage, and caused a surge that compelled the vehicle to lurch forward. The lurch propelled our vehicle into collision with another vehicle. 2. Also, the forward collision warning system failed to alert or engage the breaks. Our vehicle was stopped by the impact of hitting the other vehicle, not by its own breaks. 3. The automatic breaking system also failed to engage at all prior to impact.

Filed Aug 18, 2026 · Locks · 15,000 miles · CT

The contact owns a 2024 Toyota Sienna Hybrid. The contact stated that while driving at an undisclosed speed, the hatchback independently opened. No warning lights were illuminated. The vehicle was taken to a dealer where it was diagnosed and determined that the hatchback needed to be recalibrated. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer where it was diagnosed and determined that the hatchback needed to be recalibrated. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer again and was diagnosed and determined that the hatchback needed to be recalibrated. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 15,000.

Filed Aug 3, 2026 · Driver assistance · ID

I have never been in an accident in my 31 years of driving. However, I am worried that this van is going to cause me to be hit. Several times I have pulled out to make a left or right turn and my gas pedal does NOTHING. I can push it clear to the floor and NOTHING!!! Cars end up slamming on their brakes and honking at me but there's nothing I can do. This is EXTREMELY scary and a HUGE HUGE HUGE manufacturing flaw. There needs to be a recall for this to be fixed before people are injured.

Filed Jul 17, 2026 · Engine, Transmission · GA

Unexplained acceleration during braking which has caused the vehicle to appear to accelerate further during braking actions causing driver to apple brakes harder

Filed Jul 16, 2026 · Lights · NY

Rear Tail Lights Failed... Brake and Signals work. This was repaired through the dealership. 4 connectors and housing replaced invoice shows part 909890-10942. I am writing to express my concern regarding repeated tail light failures on my black Toyota Sienna that appear to be caused by wiring connection issues. This defect creates a serious safety hazard for my family, other motorists, and pedestrians, particularly in rural areas where there is little to no street lighting. I live in the country, where many roads are unlit and visibility at night is already limited. Because my vehicle is black, it blends into the darkness when the tail lights fail. Drivers approaching from behind may not realize my vehicle is on the road until it is too late to stop safely, significantly increasing the risk of rear-end collisions. This issue is especially concerning because I frequently transport children in my vehicle. Their safety depends on other drivers being able to clearly see my vehicle at night. A tail light failure caused by a wiring defect could place them at unnecessary risk of serious injury or death if another vehicle is unable to see us in time. The defect also puts other drivers at risk. Motorists traveling at highway speeds on dark rural roads rely on tail lights to judge the presence, distance, and speed of vehicles ahead. Without functioning tail lights, they may have little or no warning that another vehicle is in their lane, particularly around curves, hills, or during poor weather conditions. This appears to be more than a routine bulb replacement issue. If the root cause is an unreliable wiring connection, the lights may work intermittently or fail unexpectedly, making it difficult for owners to recognize the problem before driving. An intermittent electrical failure is especially dangerous because drivers may believe their lights are operating normally when they are not. Started a case with Toyota 260715001670

Filed Jul 15, 2026 · Brakes · VA · crash · 2 injuries

Moving about 55 miles per hour on right lane of I-95 the Jeep in front of me braked abruptly. I braked hard but as my Sienna was quickly slowing down to stop, the brake pad felt spongy when it was slower and as I pressed even harder, it seemed to have stopped decelerating at that slower speed and that was when my Sienna slammed into the back of the Jeep. Happened today on July 15, 2026 at around 4:24 EST. I will also file this same report to Toyota. My wife and I are at the hospital getting checked, but my Sienna looked undrivable.