2010 Toyota Sienna acceleration problems

Filed Aug 17, 2020 · Acceleration, Driver assistance · 110,000 miles · CA

When entering a slight curve in the road at moderate in town speeds there is a clicking sound to the left of the steering wheel in the dash then the traction control sensor lightt goes on. While freeway driving, it has happened 3 times out of the blue and warning buzzers sounded vsc light and traction control light went on and the steering jerked...engine lost power ...very scary.I had rack and pinion steerling assembly replaced at about 40,000. The problem started at about 110,000 miles. I had all the wheel sensors replaced at about 115,000. I took it into toyota dealership they said they couldn't find a problem. Took it to 2 different mechanics ...one changed the sensors.company says it hasn't been a problem but on the internet there are lots of identical posts. Definitely a safety issue.I've had the car 11 years and always did scheduled maintenance. Please see what the issue is.

Filed Nov 15, 2016 · Acceleration, Electrical · 100,000 miles · LA

Tl* the contact owns a 2010 toyota sienna. When the cruise control was activated, it would deactivate independently. In addition, the bumper sensor detected objects that were not in front of the vehicle. The vehicle was taken to the dealer, but the failure was unable to be diagnosed. The vehicle was not repaired. The failure mileage was 100,000. Updated 01/27/17*lj consumer stated problem is the dynamic cruise control. The cruise control shuts off with a red light and audible chime while operating. Updated 7/6/18

Filed Jun 29, 2016 · Acceleration · 70,000 miles · NC · crash

Tl* the contact owns a 2010 toyota sienna. The contact stated that the vehicle independently accelerated and crashed into another vehicle. The failure occurred two other times. There were no injuries and a police report was not filed. The manufacturer was notified of the failure. The vehicle was taken to the dealer where it was kept for over a month, but the failure could not be duplicated. The vehicle was not repaired. The VIN was invalid. The approximate failure mileage was 70,000. Updated 10/13/16

Filed Apr 6, 2015 · Acceleration, Steering · 87,000 miles · TX

I was advised that I had to replace my steering rack because of multiple leaks. I have spoken with quite a few people including my toyota service advisor and was advised that the toyota steering racks frequently fail between 75k and 90k and have to be replaced. This happens immediately after the 75k warranty ends. Also, when I drive speeds between 50-70 MPH, and level out the speed, my car picks up speed when I am not initiating the action.

Filed Mar 25, 2015 · Acceleration, Engine · 46,847 miles · CA

Toyota sienna 2010 minivan engine stalls while driving. When driving on highway or on city roads, engine stalls and looses engine power for a few seconds (seemingly happens when shifting gears) when accelerated or decelerated. The engine basically stalls during driving and may lead to sudden vehicle slowness in middle of traffic. The suspected problem advised by toyota is with transmission and the original cost estimate was $5100 to fix that. Later after discussing with toyota it was lowered to $3800 (approx) and toyota warranty support was ready to pay (absorb) $2000 and $1800 to be paid by the customer. Even after initial repair and payment of ($1800+tax) $2166 the vehicle still have the same symptoms and issues. Presently the vehicle is under repair with the dealer (fremont toyota, ca). The vehicle use was normal, regular city/highway usage, well maintained single owner. Nothing heavy was towed and used in rough or abnormal conditions. If possible ntsb needs to: 1. To look into this model of vehicle and see if there are other reported problems with sienna 2010 engines. 2. To investigate why this vehicle have this issue within 46,847 miles. 3. Can manufacture bills the entire cost of repair, since this seems a major design or engine issue with this model of vehicle. 4. Advise to issue a safety notice to all toyota sienna 2010 v6 engine model owners since this can be disastrous in middle of traffic and can cause accidents/problems to all on the road.

Filed Jul 14, 2014 · Acceleration · 43,000 miles · OH · crash

When I come to park the van in to the garage van accelerated it self without I put leg on the acceleration and try to applied the break and it did not stop. The van went fast and hit the garage door and broke the wall. Van bumper got damaged too. It never happened before to me. It was sudden acceleration of the van.

Filed Apr 2, 2014 · Acceleration · 68,000 miles · DE · crash

Tl* the contact owns a 2010 toyota sierra. The contact stated that while driving approximately 5 MPH into a paring lot, the vehicle accelerated to 85 MPH and then crashed into two parked vehicles. The brake pedal was engaged repeatedly and the ignition was turned off in order to stop the acceleration failure. The contact was not injured and a police report was not filed of the incident. The vehicle was towed to an authorized dealer where the front end of the vehicle was repaired. The technician was unable to diagnose a failure. The failure later recurred and the contact susatined severe damages to the vehicle. A police report was filed with no injuries. The manufacturer was notified of the problem. The approximate failure mileage was 68,000. Updated 07/01/14 ma

Filed Mar 20, 2014 · Acceleration · 100,200 miles · MO · crash

2010 toyota sienna was stopped at a red light, with my right foot on the brake, when it suddenly launched itself into the back of the vehicle in front of me. (this was almost unbelievable, but thank god I had a witness! A gentleman previously unknown to me, who just happened to be standing on the side walk when he saw it happen. As I stepped out of my vehicle, I heard him describing to the driver in front of me what I had just experienced.) updated 04/07/14..updated 04-29-14 *bf..updated 06/16/14 *bf updated 09/20/2017*js

Filed Feb 10, 2012 · Acceleration, Visibility · CA

General complaint about rear side visibility during reversing. With baby car seats, on the driver side of the mini van, the driver side rear windows are obstructed and the visibility is restricted considerably during back up. Asked toyota if I can buy rear cameras but was told that it comes only factory installed. I consider this a serious anomaly. The mini van occasionally runs without slowing down while the gas pedal is not used. It retains speed giving a false hope that it is on cruise control mode. Informed toyota about the same and was told it is a feature.

Filed Jul 6, 2010 · Acceleration · 7,500 miles · CT

Toyota sienna uncontrolled acceleration. I attempted to slow vehicle by pumping brakes which rendered them temporarily useless. Shifting into neutral didn't work. Then acceleration normalized and brakes regained function.