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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
112,791 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Toyota Sienna brakes problems

brakes problem

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2004 Toyota Sienna Owner Comments (Page 1 of 2)

problem #22

Aug 232016


  • 133,750 miles


The vsc traction control system activates on it's own. Driving the van it automatically comes on and brakes the van, dashboard light and beeping noise comes on. Brakes you automatically causing the van to veer to the right. This malfunctioning devise with the yaw system is continuing after many trips to the local Toyota dealer. They currently have the van and are replacing part after part and the problem still persists. Contacted Toyota headquarters and filed a complaint with them but they say there is no recall on this van. Checked on line and found many other Toyota Sienna owners who are experiencing the same issues as we are. This is a dangerous safety hazard which can cause an accident. As of today's writing the problem has not been diagnosed by Toyota.

- Redding, CA, USA

problem #21

Jul 042016


  • 79,000 miles
The vsc sensor is activating during normal driving conditions without warning. This is causing the van to aggressively apply the brakes and lose acceleration. This issue mainly occurs when turning down while going down hill, however it happens randomly in other instances as well. I have been in several life threatening instances where the brakes are being applied while traveling through mountains with large semi trucks behind me.. nearly causing several accidents. My research points to a few things that could possibly be the culprit: The yaw sensor stearing wheel rotational position sensor vsc computer module this video captures exactly what is happening to my vehicle. Https:// I cannot find any instances where this issue was fixed online

- Rock Hill, SC, USA

problem #20

Jun 172016


  • 154,000 miles
Unexpected vehicle stability control activation while driving resulting in automatic braking and unexpected steering pull. I have been experiencing this issue over the past 4-5 years. There have been times where this issue has led to almost striking vehicles around me. I have brought the vehicle to a Toyota dealership, but they have not been able to fix the issue. On several online bulletin boards, other owners of Toyota Sienna have complained regarding the same issue. I just read in the news that similar issues are occurring on 2001-2002 Toyota sequoia.

- Dublin, CA, USA

problem #19

May 312016


  • 165,000 miles


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.

- Centennial, CO, USA

problem #18

Oct 142014


  • 63,000 miles
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.

- Suwanee, GA, USA

problem #17

Aug 312010


  • miles
The contact owns a 2004 Toyota Sienna. While driving at 70 mph around a curve, the brakes engaged independently. In addition, the contact heard a beeping noise coming from the vehicle. The vehicle was taken to a dealer, who diagnosed that a sensor needed to be replaced. The vehicle was repaired. However, the failure recurred on numerous occasions. The manufacturer was not notified of the failure. The failure mileage was unknown.

- Lincoln , NE, USA

problem #16

Jun 122015


  • 61,250 miles


The steering angle sensor, pn# 89245-08011 failed. The van can not be driven over 23 mph. The brakes come on automatically over 23 mph and the engine will not respond to accelerate. The steering seems strange (anti-lock brake light coming on) but I was able to keep the van in my lane of traffic. I am concerned that this sensor or others will fail and the van will automatically apply the breaks and loose power preventing me from maneuvering the van to the side of the road. I do not know what would have happened if I was travelling at highway speed. I consider this a major safety problem.

- Dayton, OH, USA

problem #15

Mar 212014

Sienna 6-cyl

  • 150,000 miles
While driving 55 mph on a straight stretch of road, the car careened to the right and the automatic braking system suddenly became engaged and our car was forced to stop on the side of the road. After turning off the car and restarting, the problem appeared to be a singular incident. However, about one year later, on March 27th, 2015 a similar occurrence happened but at only 25 mph. The car, however, was not drivable. After driving about 25 feet, the traction light came on, the signal sounded and the car brakes began to pump as though the car was skidding. As the car slowed almost to a stop, stepping on the brake manually stopped the signal and the light, as well as, the ABS system temporarily allowing the car had driven a short distance. After another 25 feet, the traction light went on again, the warning bell went off and the ABS system was activated again. This continued for a significant distance before I determined that the car could not be driven without a significant accident occurring. Unfortunately in the first incident, we were almost struck from behind by a closely following vehicle. In the second case, the same nearly occurred as I tried to exit onto a roadway.

- North Canton, OH, USA

problem #14

Mar 072014

Sienna 6-cyl

  • 140,000 miles
At varying rates of speed, on dry roads, my van's vsc and traction control icons will illuminate on the dash, the acceleration will cease and the brakes will pump 2-4 times, and the steering will stick. Originally, this occurred only on roads that curved however the frequency of occurrence is increasing and it now occurs on straight roads as well.

- San Rafael, CA, USA

problem #13

Nov 242014


  • 120 miles
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.

- Edison, NJ, USA

problem #12

Oct 012014

Sienna 6-cyl

  • 126,000 miles


Driving on the freeway, the vehicle all of a sudden started to brake. I was unable to accelerate and a beeping noise started going off. This continued for about 15 minutes. I pulled over, turned off the car, but as I started driving again, it happened again. The dash showed the car with the skid marks below it blinking as this was happening. I took it to a shop, but they were unable to diagnosis the problem. Now when I make a left turn of any kind, the vehicle continues to do the same thing. I have been trying to research the problem and fix it, but unable. The vehicle has been sitting in my garage since the middle of Oct.

- Long Beach, CA, USA

problem #11

Dec 262014

Sienna 6-cyl

  • 155,495 miles
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 get the vehicle home and we called our local Toyota dealer, described the issue and they informed us they have never received any complaints concerning rapid deceleration of this model year, before our phone call. I've scheduled an appointment for December 30, 2014 to have the vehicle checked out and have recall work done concerning the "shift lock solenoid assembly". will update after appointment.

- Hampton Bays, NY, USA

problem #10

Nov 072014

Sienna 6-cyl

  • 151,000 miles
While driving on interstate vsc warning light came on, beeping and alarms heard. Engine slowed down and I felt like the vehicle was out of control. The vehicle swerved like it was hydroplaning on a dry highway. Called our repair shop immediately. Car was towed and research was done on the history of the problem in other Toyota mini vans. I was told there were reports of this happening in other vehicles but not enough for a recall to be issued by Toyota, recommendation by the report they found was to replace a sensor which is what was done. That was just over a month ago and the same problem occurred again tonight on a side road going approx 30 mph on dry road. Van is back at shop again tonight. I will be calling the 1-800 number for Toyota, I do not understand why there is not a recall on this issue. Both incidences could have resulted in an accident. Tonight I was driving with my child in the van. This issue could have placed her life in danger had there been an accident.

- Franklin, TN, USA

problem #9

Nov 142014


  • 143,339 miles
The contact owns a 2004 Toyota Sienna. The contact stated that while driving approximately 65 mph, the brakes seized. The vehicle resumed normally after sittng for a couple of minutes. The failure was recurring. The vehicle was taken to the dealer where it was diagnosed that the steering angle sensor would need to be replaced. The manufacturer was not made aware of the failure. The failure mileage 143,339.

- Danbury , CT, USA

problem #8

Jul 122013

Sienna 6-cyl

  • 123,000 miles
In the early summer of 2013, I was traveling North on I-15, approx 5 minutes to St. George, Utah on a beautiful clear day when the car began to swerve and the yellow skid light came on and the emergency beeping sound alarmed and the car slows down on its own--I no longer have control over accelerating the speed of the car. It frightened and alarmed me and my passengers. Within about 5 seconds the light went off and the alarming beeping sound stopped and now I have control of the speed of the car. I have traveled that road several times since and the same incident has occurred at approx the same spot. However, in 2014, during my travels to and fro on this same highway where the speed limit is 65-75mph, the incident occurs in several other spots along I-15 North and southbound. The skid light and the alarming beeping sound even went off when coming to a stop going approx. 5mph. The indicator light and alarm sound seems to be getting more and more sensitive. The same incident has been occurring this year every day on my way home from work at the same spot on I-215. Even though the speed limit is 65mph, I have to slow down to less than 50mph in order to avoid this occurrence. This creates a very hazardous situation since I am slowing down for apparently no reason to the cars behind me who are traveling at the speed limit.

- Henderswon, NV, USA

problem #7

Mar 072014

Sienna 6-cyl

  • 139,500 miles
In this initial incident, I was traveling on a curvy road at posted speed limit of 30mph. My vehicle suddenly slowed, as if I was applying the brakes, which I was not, and my steering was compromised. In addition the vsc indicator and symbol flashed on my dashed and beeped. The road was dry. This has occurred 10+ times since. I have brought it to my mechanic, without turning the engine off after the occurrence so that he could "read" the computer but there is no evidence available. We have brought it to the Toyota dealer. They "rebooted" the sensors and said it should be fine. It has continued to happen, on the freeway going uphill at 55 mph, going downhill at 60 mph and has been close to causing a rear end collision each time.

- San Rafael, CA, USA

problem #6

Apr 182014

Sienna 6-cyl

  • 123,000 miles
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 BR004-03 and BR008-04). Neither was implemented.

- Ellicott City, MD, USA

problem #5

Feb 282014

Sienna 6-cyl

  • 96,956 miles
Summary: Sensor in stability control failed and falsely reported crisis situation, causing computer to seize control to slow vehicle and change course. Long version: While driving straight on city street, suddenly vehicle slowed and pulled to side, stability control light and audio alarm activated, heard grinding noise that sounded like ABS. Condition persisted if driving over 5-10 mph. Crawled to nearby non-dealer repair shop. Diagnosis/solution: Steering angle sensor reporting wheels at 250 degrees when actually straight ahead, would not recalibrate, circuit integrity otherwise good, sensor was replaced. No residual problems noted so far since then (one day). I have the failed sensor. This sensor problem was cause of a production change and tsb BR008-04 in the first year. Obviously Toyota has known about this problem for years, but no recall. Other accounts exist on line of people who have had this happen. This is a major safety hazard. It's the mechanical equivalent of riding with a driver on lsd who is braking/swerving to avoid hallucinations. I was lucky to be going slowly on an uncrowded street, but at higher speed or crowded conditions this could be a disaster. Toyota has not been terribly helpful so far, but discussion will continue....

- Madison, WI, USA

problem #4

Oct 142011


  • 20,000 miles
The contact owns a 2004 Toyota Sienna. The contact stated that while driving 35 mph, the vsc and the traction off light illuminated causing the brake to engage independently. The vehicle was not taken to the dealer for inspection. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 20,000.

- Torrance, CA, USA

problem #3

Apr 122013


  • 115,000 miles
Six times now driving at speeds between 30 and 60 mph my Toyota mini van's vehicle traction control has activated, brakes go on, pull me into another lane, all lights flashing, car beeping. It lasts anywhere from 3 seconds to 10 seconds. It is absolutely terrifying.

- Rye, NH, USA

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