Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
101,000 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

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2004 Toyota Sienna:

Unsubscribe any time. We don't sell/share your email.

2004 Toyota Sienna Owner Comments

problem #10

Dec 012015


  • 138,000 miles


The contact owns a 2004 Toyota Sienna. While driving 25 mph, the vehicle jerked and the traction control indicator illuminated. The tires felt as if they were gripping the ground, which made it difficult to drive. Since the failure, the vehicle started making a popping sound, but stopped when the vehicle traction control indicator illuminated. The vehicle was taken to an independent mechanic, but was not diagnosed or repaired. The failure mileage was 138,000.

- San Rafael, CA, USA

problem #9

Mar 152014


  • 70,000 miles
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.

- Walnut, CA, USA

problem #8

May 152014

Sienna 6-cyl

  • 130,000 miles
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 the dealer attempted to fix the vehicle three times. Updated 01/13/15

- Santa Clarita, CA, USA

problem #7

Oct 172013


  • 120,000 miles


The contact owns a 2004 Toyota Sienna. While driving approximately 50 mph, the traction control sensor continuously illuminated and the vehicle decelerated. The contact applied the accelerator pedal, but the speed did not increase. The vehicle accelerated normally after the sensor dimmed, but the failure recurred several more times. An independent mechanic was unable to diagnose the cause of the failure. The vehicle was not repaired and the manufacturer was not notified. The approximate failure mileage was 120,000.

- Argyle, TX, USA

problem #6

Nov 182013

Sienna 6-cyl

  • 116,000 miles
On numerous occasions, (the first incident occurring November 2013 and most recent 6/23/2014), the stability//traction control system suddenly engaged. Most of the incidents occurred while on the freeway with speeds between 50-55 mph, usually on straightaway sections, sometimes during a gentle bank usually toward the right. On all occasions, the roads were dry and the driver was not applying the brakes at the time. Without warning, the brakes suddenly engage causing the van to feel like it was lunging forward and making it difficult to control the vehicle. A series of rapid beeps would occur and the traction sensor would illuminate. The entire episode would last for several seconds. During these episodes, the vehicle is difficult to control and passengers/other drivers are in danger.

- Aiea, HI, USA

problem #5

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

problem #4

Jan 052011


  • 120,000 miles


The contact owns a 2004 Toyota Sienna. The contact stated that while driving approximately 15-50 mph, she noticed the traction control warning light illuminated on the instrumental panel. The ability to break was lost and the steering became difficult to maneuver. The failure was unable to be diagnosed by a local mechanic. The failure mileage was approximately 120,000.

- East Waterford, PA, USA

problem #3

Jul 032004


  • 77,000 miles
Vsc engages at highway speeds: Vehicle alarm sounds, brakes deploy abruptly and unexpectedly, steering pulls, accelerator goes dead (pulse races, adrenaline courses). First complained to dealer after four incidents in first 20K miles: Had online testimonials of yaw sensor, steering angle sensor and ECM replacements as possible remedies; dealer rebuffed my complaints, denying service to sensors, and suggested my tires had 'gone square'. I have lived with the condition for a total of seven years. The car now 'goes off' maybe three times per every 20 miles driven, unpredictably and always shockingly. My family refuses to ride in the car. I cannot sell it in good conscience, as the defects cannot be confirmed by the dealer (and apparently therefore do not exist), so there is no way for it to be 'made safe' for a succeeding owner. Its remaining $10K+ equity has been nullified by this defect.

- Mill Valley , CA, USA

problem #2

Nov 232008


  • 56,000 miles
At any speed the traction control/ABS system warning light activated causing the antilock breaks to start pumping and making it difficult to steer. This occurred three times during our trip, even at high speeds such as 55 mph, which could have easily caused a collision if someone was driving behind us. It also felt as if it was difficult to steer the vehicle. We brought the minivan to peruzzi Toyota in hatfield pa and explained the problem adding we had paid for an extended warranty, they said it was not covered under warranty. It was caused by battery drainage and that a sensor between the steering wheel and the column had to be recalibrated and we had to purchase a new battery. I find it suspicious and alarming that this safety concern could happen to a vehicle due to low battery - especially since there was no indication of low battery. There were no warning lights and all other vehicle operations functioned properly. Also, no doors were left open and no lights were left on, etc... in order to drain the battery. Even if the primary cause was the battery, the breaks should not become activated and the steering difficult while driving down the road at 50 mph with my family in the care. Considering the recent recall of Toyota vehicles, I'm concerned peruzzi Toyota might have given us false information.

- Hatfield, PA, USA

problem #1

Apr 232009

Sienna 6-cyl

  • Automatic transmission
  • 68,000 miles
The contact owns a 2004 Toyota Sienna. While driving 20 mph, the contact noticed the traction control engaged causing the anti lock brakes to engage. The contact stopped the vehicle; however, when resuming regular functions he could not drive more than 5 mph without the traction control engaging. A local technician determined that the wheel speed sensor and reluctor rings were rusty which caused the anti lock brakes to activate, the vehicle was repaired at a cost of $87. The manufacturer stated that they where unaware of the issue and a complaint was taken. The failure mileage and current mileages were 68,000. Updated 6/01/09 updated 06/02/09.

- Rockford, MN, USA

Not what you are looking for?