2024 Toyota Sienna Hybrid brakes 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 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 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.

Filed Jun 17, 2026 · Brakes · CA

When approaching a stop sign or light and while the brake is already engaged the car will accelerate lunging the car forward from 3-10ft while driver maintains the same pressure on the break pedal.

Filed May 15, 2026 · Brakes · TN

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

Filed Apr 24, 2026 · Brakes · 31,600 miles · FL

The contact owns a 2024 Toyota Sienna Hybrid. The contact stated that while the vehicle was at a complete stop, while attempting to depress the brake pedal, the vehicle unexpectedly lunged forward. There was no warning light illuminated. The contact stated that the failure had occurred several times without a warning light illuminated. The vehicle was taken to the dealer several times; however, the failure could not be duplicated. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 31,600.

Filed Apr 2, 2026 · Acceleration, Brakes · VA

I am reporting a possible safety defect in my 2024 Toyota Sienna Hybrid AWD, VIN [XXX] . The vehicle intermittently surges, lurches, or creeps forward while I am pressing the brake pedal and attempting to slow or stop. It feels as though the vehicle briefly adds power or braking force momentarily decreases even though my foot remains on the brake. The sensation is not normal creep alone; it feels like a brief unintended forward push while braking. The problem is intermittent, which makes it difficult to predict, but it creates a safety concern because it can happen when slowing, stopping, or maneuvering at low speed. I am concerned this could increase stopping distance or cause the vehicle to move forward unexpectedly. I am requesting investigation of possible defects involving the braking system, hybrid regenerative braking transition, brake actuator, pedal sensing, or related control software. It happens daily. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 22, 2025 · Acceleration, Brakes · TX

Looked online to see if other Sienna drivers had the same issue with the hybrid system. Brakes are accelerating a bit even when already pressing on the brakes. It has happened enough times to be concerning. We have not taken it to the dealearship as of yet but will be getting in touch soon , now that we know it's a known issue. No warnings from vehicle.