My vehicle steering/control has frozen a few times in the past 18-24 mos. This happens for me in wet conditions at slow speeds while trying to turn, usually to the right. The car also seems to slow on its own and pull to the side at these times. This has also happened while reversing out of a parking spot. I do not recall seeing any lights engage but I am more focused on steering the car safely and exterior factors at these times so I haven't noticed the dashboard. It feels like the power steering fails, and I have no control. Thankfully, I have not been moving at high rates of speed, nor been in a position to go into the lane of on-coming traffic or had someone in a lane near me, and have been able to hold in position or manually turn as much as needed. Steering seems to return once the turn is complete. I have been fearful of hitting someone or being hit from behind each time. My mechanic has been unable to recreate the experience and was unable to suggest a direct answer. I see others have had similar experiences and the same lack of answers from even Toyota. Having come across this website and seeing responses here to this exact problem I have had, I am hoping for more information or a recall soon!

- Halifax, PA, USA

The vehicle stability control system randomly engages and activates the brakes without cause. This can happen on a gentle curve going under the speed limit. It is very scary and I am afraid it is going to cause an accident. Internet research shows many owners with this issue and no information on the cause or a fix

- Lovettsville, VA, USA

While driving vehicle on dry, non slippery roads with slight to moderate curves, vehicle illuminates Traction Loss light, sounds alarm buzzer, and at times applies brakes and dethrottles engine, even when no loss of traction has occurred. This happens while driving on straight roads with slight unevenness. Had to disconnect wheel speed sensor harness to disable ABS/VSC system. When this happens, the vehicle automatically applies brakes to certain wheels and dethrottles the engine, this can pull the vehicle to one side sharply and can cause an accident.

- Great Falls, MT, USA

Traction control and ABS activated on dry roads acting like the vehicle thought it was going into a slide/skid. This could have caused a serious crash!

- Iberia, MO, USA

At speeds of anywhere between 30-60 mph, traction control system engages when turning slightly left. Alarm comes on, brakes are automatically applied. Very dangerous

- Huntersville, NC, USA

When driving at speeds of 38 mph or more and turning the steering wheel/tires, the vsc warning alarm will go off. When this happens, the cars automatically brakes. This happens when there are no problems with the driving conditions. The severity of the braking and length of alarm vary. It is especially problematic on tight turns. It does not matter whether you are going uphill, downhill, or turning on a flat road. We do not know what is causing this unsafe issue. We have tried turning off the trac. It made no difference.

- Cassel, CA, USA

The contact owned a 2006 Toyota Sienna. When the brake pedal was depressed, the vehicle independently accelerated towards an intersection. As a result, the contact crashed into two other vehicles. The contact's vehicle came to a stop when it crashed into a pole. The contact suffered injuries to the back, neck, shoulder, chest, knees, and hips. The passenger suffered injuries to the shoulder and stomach. Medical attention was received. Huntington beach police was at the scene and filed report number: [xxx]. the vehicle was towed. The manufacturer was contacted and provided case number: [xxx]. the contact also stated that the manufacturer's engineer would inspect the vehicle to determine the cause of the failure. The vehicle was destroyed. The approximate failure mileage was 112,297. ('parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).')

- Huntington Beach, CA, USA

The contact owns a 2006 Toyota Sienna. While coasting with traffic, the vehicle's accelerator pedal suddenly traveled to the floorboard, causing the vehicle to accelerate at high speeds. The accelerator pedal remained depressed. The contact attempted to depress the brake pedal, but the vehicle did not stop. The contact was able to move the vehicle over to the side lane as it continued to accelerate. The contact engaged the emergency brake, which caused the vehicle to slow down slightly. The contact then moved the gear shift into the park position and the vehicle stopped violently. The vehicle was towed to a certified mechanic. The vehicle was taken to an unknown dealer, but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 90,000.

- Evansville, WI, USA

Traction control has randomly engaged 4 times in the past week, at speeds as low 35 mph and on the highway at 65 mph. Pavement was dry and we were driving straight, not turning. Braking is applied causing temporary loss of speed and pulling steering to one side for about 1-2 seconds. Control returns and trac control light continues to blink. Does not result in an error code.

- Marietta, GA, USA

I was driving 65 mph on the highway going straight on dry pavement and suddenly a buzzer sounded, the vsc light came on, and the steering wheel and brakes were taken over by the vsc system and the car started weaving out of control. I could not steer or break the car. The situation is unpredictable. It easily happened on curvy or bend road and has happened 3-4 times in this year. It is scary.

- Folsom, CA, USA

The contact owns a 2006 Toyota Sienna. While driving 70 mph, the traction control warning indicator illuminated and the vehicle inadvertently pulled to the right. After releasing the accelerator pedal and slowing the vehicle down, the vehicle was able to operate correctly. The vehicle was not taken to an independent mechanic or dealer for diagnostic testing or repair. The manufacturer was not made aware of the failure. The approximate failure mileage was 36,000.

- Richmond Hill, NY, USA

My slip indicator light comes on as I round turns and the engine seems to RPM down. This happens at normal speeds, on dry roads. Unable to drive on the highway, because when slip indicator light comes on, it also applies the front brakes at highway speeds. Other owners of Toyota Sienna are also having the same problem. Https://www.cargurus.com/cars/discussion-C9152_ds656326 https://www.youtube.com/watch?V=tgmjafpifko https://www.justanswer.com/Toyota/4rmyw-Toyota-Sienna-2004-Sienna-when-slip-light-indicator.html

- North Plainfield, NJ, USA

This afternoon I entered the highway and was going about 60-65 mph when my car suddenly started accelerating on its own, I repeatedly depressed the brake, even standing on it in an attempt to slow the car. The car was making a revving sound and the brakes were doing nothing to slow the car, it just kept accelerating. Finally, the brakes seemed to engage, the revving stopped, and the car seemed normal again. I pulled off the highway and called aaa to have the car towed to mechanic. Car has about 105,000 miles on it and it's been very reliable up until now. I will report to Toyota and I will not drive this car again, much less let my children ride in it.

- Denver, CO, USA

I was driving my Toyota Sienna 2006 today morning and the driver in front of me abruptly stopped. I was maintaining a safe distance and immediately hit my brakes. Although the brakes seemed to engage, the car accelerated and very badly rear-ended the car in front me. Has this happened to anyone before with the car auto-accelerating on it's own?

- Cincinnati, OH, USA

The contact owns a 2006 Toyota Sienna. While parking the vehicle, it accelerated independently without warning and crashed into the contact's residence. The air bags failed to deploy. There were no injuries reported. A police report was not filed. The vehicle was taken to a dealer. The vehicle was repaired for the damages, but the failure was not diagnosed. The manufacturer was not notified of the failure. The failure mileage was unknown.

- Greenwich, CT, USA

On March 13, 2015 driving on I-95 South in a 2006 Toyota Sienna van the cruise control would not disengage when the brakes were applied approaching an exit ramp. The vehicle would not slowdown in spite of pressing the brake pedal as hard as possible. Moving the control lever forward to disengage the function was also not successful. The exit ramp was inclined so the cruise control accelerated the engine in an attempt to maintain our speed at 70 mph. The vehicle went thru a stop sign, bounced off the guard rail and came to a sudden stop with the engine not running. The impact destroyed the right side of the vehicle and the stopping was so abrupt that the cell phone (in my shirt pocket)flew out ripping the pocket off the shirt. Neither the front nor the side air bags were deployed. Skid marks made by the vehicle's right front tire (and possibly the rear right tire) prior to and after hitting the guard rail indicate the brakes were working on at least this side. Skid marks attributable to the left hand tires were not noticed.

- Gaithersburg, MD, USA

The contact owns a 2006 Toyota Sienna. While stopped at a traffic light with the brakes engaged, the vehicle accelerated independently. As a result, the contact crashed into another vehicle and the air bags failed to deploy. There were no injuries and a police report was not filed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 64,000...updated 04/23/15...updated08/20/15

- Dallas , TX, USA

On August 1st at approximately 10:11pm [144298 miles on the vehicle] at the I-10east to I-75south interchange after merging onto I-75 South. Traveling on I-10 East from tallahassee to orlando using the cruise control which was set at 75mph according to the speedometer - in order to take the I-75 southbound (tampa-orlando) exit I applied the brake to slow down and release the cruise control. Upon merging onto I-75 from the ramp I was traveling at about 55 to 60 mph and went to select resume on the cruise control. I removed my foot from the accelerator as I always do and let the cruise do the work. The vehicle accelerated as expected to 75 mph - the set point and stayed there for about 2 seconds (long enough for me to notice the speedometer pause at 75mph and then the vehicle accelerated fast and hard again (like full throttle) and kept going in about 2 seconds I was now at 85 and still accelerating; I applied my brakes to release the cruise control and slow the vehicle - it released the cruise and I was able to slow down - I did not use the cruise control after that.

- Dothan, AL, USA

On Monday August 4th, 2014 after a funeral, I drove into the parking lot of the church where I was going to gather with my fellow friends and family that lost their family member that day.. I drove into the driveway and attempted to reverse my minivan, I had my hand on the shift change to shift my car, upon attempting to change shifts my car accelerated and I lost control of the vehicle, causing my car to go hit the side of the building of the church damaging the gas tank, and causing the gas to leak. At the time of the scene and accident my 6 year old was in his carseat behind me and was scared at what had just happened, he panicked and took off his seat belt, opened the door, and went running out of the vehicle.. at that moment trying to regroup myself to see why my car had accelerated with force forward, I parked my vehicle and went looking for help.. I cannot explain how my car gained so much force to end up over 2 feet in the air over a small wall... I did notice my car hit the gas tank and heard gas leaking and went to cry for help.. I am not aware of any recalls on my van except for the undercarriage tire, which at this time the recall is not complete because they have not finalized a schedule for me to have it checked... also I am upset that the minivan upon the impact of hitting the wall did not diploit the airbag... I googled safety recall on Toyota Sienna and came upon a recall on more than 615K Sienna models over a rollaway risk.. the years listed were 2005, 2007, 2008, 2009 Toyota Sienna, and a recall affecting a possible rollaway upon shift gears.. according to the article the shift lever cold be moved out of position depressing the the brake pedal, and because of this fault, the affected Siennas could roll away without causing warning, increasing the risk for crash.. well I was in a crash.

- New Britain, CT, USA

The contact owns a 2006 Toyota Sienna. The contact stated while driving approximately 65 mph, the vehicle unexpectedly increased acceleration. The vehicle failed to slow down upon depressing the brake. After reapplying the brake pedal and engaging the emergency brake the speed rate began to reduce to 50 mph. The vehicle was then maneuvered to the side road where the gear lever was shifted into park. The vehicle came to a complete stop and was towed to an independent mechanic. The vehicle was in the process of being diagnosed. The manufacturer was notified and they recommended the vehicle be inspected by the dealer. The approximate failure mileage was 111,000.

- Goshen, NY, USA