Problems with 2004 Toyota Sienna VEHICLE SPEED CONTROL

When driving under normal conditions the vehicles' vsc will engage. the dashboard lights go off, there is a loud interior beeping sound, the abs engages, the car slows down drastically at once. the roads are dry. at first this happened while driving normal speed exiting or entering an hwy off/on ramp. then happened yesterday as i was driving on neighborhood streets at about 25-30 mph. i could hear a rubbing on the back tires as if the brakes were on.

Traction control kicks in for no reason, tration beeping and tires lock,at freway speed traction control activates and cuts off speed dramatically.very unsafe to drive.

While driving at 55 mph or faster, generally on a right hand bend, the vsc will activate pulsing the brake and violently pulling the car to the left and towards oncoming traffic. the skid light goes on, and the car beeps until you are out of the turn and then it goes away. this problem has been intermittent for about 6 months but has gotten much worse and more frequent in the previous 2 months. it has been to the dealership several times and they do not know what to do. there are no error codes. the best they can say is "you're going to fast..." which is a wholly unacceptable answer considering we are going the speed of traffic and no more than 0-10 over the speed limit. *tr

Nhtsa recall number 13v429, mfr recall number d0r is listed on the safecar.gov web site for my vin number as being an incomplete recall, but the toyota servco service center says they have already fixed this recall on my car. i had an incident recently that was traced to the gear shift cable bushing. the car was parked in a grocery store parking lot, put into park, ignition turned off, and then started to roll backward, the brake didn't work to stop the rolling since the ignition was off, luckily the parking brake was applied to stop the rolling before any damage was done, it was a very gradual slope. i see that the later 2014 model sienna has a recall for the gear shift cable, but my year does not have a recall for this problem so i had to pay ~ $600 to get this fixed. luckily no one was hurt and no property was damaged.

On numerous occasions, we have had the vsc indicator light turn on while driving on dry pavement while on the highway, which caused the car to apply the brakes and also swerve. our car is awd so the first time it happened, we thought there must have been black ice on the road (even though the road appeared dry). it first happened about three years ago, although it is happening more frequently now. we drove home yesterday through the mountains and it happened four times on our two hour drive. it mostly happens while going downhill for us, and has happened at speeds of 70 mph - 30 mph. it has happened while turning (both directions) and going straight. it is very scary for both my wife and i, and i feel unsafe with her driving our car with our four children. we've taken it to the dealership and they want to charge us lots of money to try to fix what they "think" the problem is. i have spoken with other sienna owners who have experienced the same frightening experience so know it is not just our car, driving, etc.

Purchased 2004 sienna xle awd limited 2/18/15. while commuting to work the traction control system randomly activates in dry conditions (usually on downhill angled turn) causing loss of power, activation of front right brakes, and the steering wheel jerked from my hands (resulting in transient overall loss of control of vehicle). this defect has occurred 6 times in 2 days and i am currently afraid to drive the car, especially with a 3 month old. there have been multiple reports on edmunds.com and other toyota forums that support this is an ongoing problem with this model/year vehicle. this is a safety defect and the vehicle should be recalled to prevent injury or fatality and to resolve the issue with the tcs. there is no way to turn off the tcs manually and this issue can cause an accident. *tr

Tl*the contact owns a 2004 toyota sienna. the contact stated that after shifting into reverse, the vehicle accelerated independently. the contact stated that the brakes were depressed, but failed to stop the vehicle. the vehicle went over the curb, and was stopped by a pile of snow. the vehicle was not diagnosed or repaired. the manufacturer was not notified of the failure. the approximate failure mileage was 150,000.

Dash board has a crack on passenger side right where the air bag is. while driving on the freeway noticed check engine light came on and speedometer reading went to 0. stopped counting miles and car going on 65 but speedometer reads 0. also gas tank level indicator goes from half tank to empty and gas light turn on. it is not safe as i don't know at what speed my car is going on and also if the crack on the dash board gets bigger, air bags might pop out. need somebody to look into this as the van is driven only 49000 miles. this is very unusual . *tr

Sudden deceleration of vehicle: 2004 toyota sienna xle. the vsc engages, without warning, on smooth, dry roads and when cornering or negotiating a curve. we are the original owners and have never experienced this until the first incident in late oct. 2014. we did not take any action because although road conditions good, we were rounding a sharp bend in the road and assumed this had something to do with the incident. vehicle speed was approximately 25 mph as the vehicle suddenly decelerated, the vsc light came on and a rapid beeping alarm sounded. the vehicle pulled to one side and steering the vehicle became extremely difficult. the whole incident, start to finish, lasted approximately 5 seconds. the next incident happened in early december 2014. again, all the above described things happened, except vehicle speed was approximately 35 mph going around a gentle curve in the road. i did some research and found many complaints concerning this issue but do not see any recommendations or recalls officially issued by toyota. it appears most of the dealer recommended repairs did not correct the problem. today (december 26, 2014), this same issue happened five times within 40 minutes. my wife managed to ...

The outside temperature was below 32 and it was close to 25 or so. when i was driving the car at 40 mph with engine temp still slightly above cold(not at optimal which is almost half way) and slowed down by using gentle brakes(not hard brakes). just before the vehicle comes to a full stop, there is unintended acceleration and i could see even the rpm(scale) to spike temporarily. this has been happening every time when outside temp is cold and vehicle is driven with cold or slightly above cold engine temperature. there is a risk of hitting another vehicle or meeting accident if misjudge my braking because of this problem.. please note : this problem disappears when engine temperate is at optimal and i have driving a honda accord 2008 exl for last 7 years(was bought new one), i never had experienced this problem in that car even when driven with cold engine. *tr

while driving the vsc activates, the brakes engages, the cars slows down and it make it difficult to control. it has happened to me more than 10 times. mind you its on a dry surface and no curves. very scary i drive it with nobody inside just in case... thanks *tr

It started a year or so ago the while driving on dry road above 50miles the vsc light would lit with a alarm sound, the van will automatically apply brakes and slow the sienna. since this was extra van and we were driving mostly sedans we had and due to business i could not spend any time on it.. now it happens more frequently and it risk our lifes on highway. upon searching internet various forums came with with problems pertaining only to this year and model, please search (sudden vsc activation) and you will find multiple owner only of 2004 complaining for same issue.. in fact there are to two tsb articles to point to this problem ( tsb-br001-04 and tsb-br004-03) . i would kindly request to investigate the sudden vsc activation in middle of highway. i have spent money to replace tires, aligment balancing to find the issue is widespread.

Tl* the contact owns a 2004 toyota sienna. the contact stated that while driving at approximately 45 mph, the traction warning light illuminated. in addition, the contact stated that the vehicle accelerated independently. the failure occurred on several occasions. the vehicle was taken to the dealer where the failure was unable to be determined. the vehicle was not repaired. the manufacturer was notified of the failure. the approximate failure mileage was 130,000. ..updated 12/02/14 *bf the dealer attempted to fix the vehicle three times. updated 01/13/15

Starting from a stop and accelerating up to approx 20 mph, abs tracs vsc lights illuminated with beeping alert, and activation of brakes causing a sudden deceleration. the road was dry, level pavement, no ice, no gravel, driving straight and the brakes were not being applied. there were no conditions that would necessitate the traction control. as the brakes were not being applied at the time of the incident, the rear brake lights would not have illuminated. therefore, any driver behind our vehicle would not have been alerted to the sudden deceleration which could have resulted in a collision. fortunately this was not the case. this is the 2nd time that this issue has occurred with this vehicle. the first was in nov. 2007 (46000 miles in the vehicle). toyota service was not able to find a fault, no codes stored and not able to replicate at that time. they said that they would have a corporate contact get in touch with me. i never heard from them. nothing was resolved. there are at least two tsbs related to the vsc issue (tsb ...

Tl* the contact owns a 2004 toyota sienna. the contact stated that while driving at various speeds, the vehicle stability control warning light and trac warning light illuminated intermittently. as a result, the vehicle decelerated independently. the failure recurred numerous times. the vehicle was taken to a dealer where it was diagnosed that the steering sensor needed to be replaced. the vehicle was repaired however, the failure persisted. the vehicle was taken back to the dealer where it was diagnosed that the cable needed to be replaced. the vehicle was repaired but the failure persisted. the manufacturer was not notified of the failure. the failure mileage was 70,000.