Toyota Sequoia sudden acceleration problems

Filed Jul 21, 2026 · Acceleration · IL

While accelerating to pass a vehicle that was signaling and operating well below the speed limit, my vehicle experienced sudden and continued unintended acceleration. I was able to bring the vehicle to a stop while fighting against the engine within an intersection but the engine continued building revs, bouncing off the limiter while my foot was entirely removed from the accelerator pedal and fully applied to the brake. During this time I had moved the gear selector to neutral, only furthering the engine's revs, and attempted to place the vehicle into park without success, before having to reach beneath my dashboard, foot still on the brake, to pull the accelerator pedal up. I verified both visually and by feel that the pedal was stuck in it's position entirely on it's own, there was no outside object or floormat inhibiting it's ability to return.

Filed Nov 23, 2021 · Acceleration · 120,000 miles · WA

The contact owns a 2010 Toyota Sequoia. The contact stated that while driving approximately 60 MPH, the vehicle suddenly experienced unintended acceleration and the speed continued to increase. While depressing the brake pedal, the speed continued to increase and exceeded 95 mph. The driver used the parking brake to eventually stop the vehicle and turn off the engine. After restarting the vehicle, the RPM continued to rev very high. The vehicle was towed to the local dealer. The cause of the failure was not yet determined. The contact was informed that the vehicle was not included in the federal safety agency Campaign Number: 10V017000 (Vehicle Speed Control). The contact indicated that the vehicle had experienced the failure listed in the recall. The approximate failure mileage was 120,000.

Filed Feb 9, 2019 · 77,000 miles · IL

Vehicle accelerated on its own when I was going to stop

Filed Nov 17, 2018 · 30,500 miles · TX · crash · 2 injuries

On july 12, 2017, I had backed up my 2017 toyota sequoia to a family member's house and then put the vehicle in park, but left it running. My three children remained inside the vehicle, seated and buckled. I exited the vehicle to walk to the back and put a box in the back and when I turned around, the vehicle had suddenly accelerated and was speeding away. The vehicle struck a small section of trees on the right side, which popped the front passenger door open. The vehicle then continued on until it ran through two fences and into the woods behind the neighbor's house, where it struck other trees and came to a stop. Upon catching up with the vehicle, the engine sounded as though it was still revving and was digging ruts into the ground. I opened the driver's door and found the gear shift just slightly out of park, which is not where I left it. I had to forcefully put it back into park by hitting it and then turned the key off. The motor wound down with a high pitched whining noise. I then unbuckled all three of my children (ages 11, 9, and 5) and got them out of the vehicle. The vehicle was heavily damaged in the front end and passenger side but no airbags deployed. There had been two other instances of trouble with this vehicle previously that toyota had stated they couldn't figure out what the problem was. The first was approx 2 weeks after purchase where it would lose power while driving and then suddenly get it back and surge. The second occurred in march 2018 and the vehicle would suddenly decelerate while on cruise control, even when there were no vehicles in front, and then suddenly reaccelerate. Neither time toyota could pinpoint a cause or fix for either but the vehicle suddenly worked after they checked it out. The edr report collected by toyota contained a large amount of incorrect data, such as the vehicle rolling over when it did not and other info.

Filed Jul 5, 2017 · Acceleration · MN

Tl* the contact owns a 2005 toyota sequoia. While driving various speeds, the vehicle independently accelerated without warning. The vehicle was taken to an unknown dealer where it was diagnosed, but the cause of the failure was undetermined. The manufacturer was notified of the failure, but did not offer any assistance. The VIN and failure mileage were unknown.

Filed Jun 22, 2017 · Acceleration · 151,000 miles · MN · crash

My vehicle will suddenly accelerate for no reason. This sudden "unintended acceleration of power" comes on with no notice. I have almost hit a person and have been in one car accident as a result. This unintended acceleration problem has occurred about 10 to 12 times. The unintended acceleration has occurred both in stationary & in motion; and both on a city street and highway. Turning has not been affected by unintended acceleration. Toyota has tested and provided the attached report to me but without any interpretation. My vehicle repair cost because of the unintended acceleration was $4,529.24. Toyota still has not responded to this dangerous and life threatening situation. The manufacturer could not duplicate the failure. Updated 10/04/2017

Filed Jul 19, 2016 · Acceleration, Electrical · 965 miles · CA

Tl* the contact owns a 2016 toyota sequoia. While driving approximately 55 MPH, the driver adjusted the driver's seat with the electronic control functions. Suddenly, the vehicle lunged forward and backwards with an unintended acceleration. The driver was uncertain how the failure occured. The vehicle was to be taken to a dealer for further inspection and diagnosis. The manufacturer was notified of the failure and provided no remedy other than advising the contact to take the vehicle to the dealer for diagnostic testing. The VIN was not available. The approximate failure mileage was 965.

Filed Jan 26, 2016 · Acceleration, Brakes · 65,000 miles · LA

Tl* the contact owns a 2012 toyota sequoia. While driving at approximately 15 MPH, the brake pedal was depressed but the vehicle accelerated without warning. While driving 60 MPH, the accelerator pedal was depressed and the vehicle decreased in speed. The contact pulled over and turned the ignition to the off position. The vehicle was towed to a dealer where it was diagnosed that the throttle body failed and needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 65,000.

Filed Mar 19, 2014 · Acceleration, Fuel system · 40,000 miles · LA

While waiting in traffic in a parking lot to enter the highway, with car in "drive", foot on brake and at a complete stop, the engine suddenly accelerated to a high idle (approx 1200-1500 RPM). The car lunged forwarded slightly, but I was able to apply more pressure to the brake and stop without colliding with the vehicle ahead of me. When I entered the highway and attempted to accelerate, the accelerator was unresponsive. I was able to coast back to the shoulder without causing any traffic accident. I noticed that the check engine light was on and engine was still at a high idle. I put the car in "park" and turned the engine off. After a few seconds I restarted the engine; the check engine light was still on but the engine idled normal and the accelerator resumed normal function. This incident happened on a saturday. I took the car to the dealership early the following week, but the check engine light had already gone off. The dealership kept the car all week, but when I returned to the dealership to get the car at the end of the week, they indicated that they were unable to duplicate the malfunction and no fault codes were stored in the car's computer. However, the car malfunctioned in the exact same manner just a few hours after I left the dealership, fortunately in relatively safe conditions. I was again able to "reset" the accelerator function by turning the engine off and restarting. And I was able to get the car back to the dealership with the check engine light still on. This time they indicated that several fault codes had been stored in the computer--some that they were not familiar with. They kept the car in the shop for another week and replaced the throttle body. I am concerned that the malfunction might be electronic/software related. If the accelerator becomes unresponsive in traffic, this will obviously create a hazardous situation.

Filed Mar 12, 2013 · Acceleration, Brakes · 43,500 miles · PA · crash

Unintended acceleration, increased acceleration despite stepping on brake, , brakes did not stop car and crashed total loss.