2004 Toyota Sienna Vehicle Speed Control Problems
Owners have filed 111 complaints with NHTSA about vehicle speed control problems on the 2004 Toyota Sienna, 5% of all complaints for this model year. Half of the reports with a mileage happened before 62,896 miles. The words owners use most often: “suddenly accelerated” (6% of reports).
- 111vehicle speed control complaints
- 62,896median miles at failure
- 26mention a crash
- 10mention an injury
- 1related recalls
- 24%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Suddenly accelerated: mentioned in 7 of 111 complaints (6%)
- Parking space: mentioned in 7 of 111 complaints (6%)
- Floor mat: mentioned in 6 of 111 complaints (5%)
At what mileage do vehicle speed control problems happen?
Based on 88 complaints that reported the odometer reading.
How serious are the reports?
Of 111 complaints, 26 mention a crash, 10 an injury.
Toyota Sienna vehicle speed control complaints by model year
| Model year | Vehicle Speed Control complaints | Share of that year | Median miles |
|---|---|---|---|
| 2019 Sienna | 3 | 7% | 12,000 |
| 2018 Sienna | 5 | 7% | 21,275 |
| 2017 Sienna | 6 | 4% | 4,187 |
| 2016 Sienna | 2 | 3% | 18,000 |
| 2015 Sienna | 3 | 1% | 30,500 |
| 2014 Sienna | 11 | 7% | 78,929 |
| 2013 Sienna | 6 | 3% | 28,286 |
| 2012 Sienna | 11 | 4% | 8,900 |
| 2011 Sienna | 20 | 3% | 20,000 |
| 2010 Sienna | 19 | 11% | 26,500 |
| 2009 Sienna | 13 | 6% | 40,000 |
| 2008 Sienna | 51 | 12% | 43,000 |
| 2007 Sienna | 28 | 8% | 38,500 |
| 2006 Sienna | 50 | 5% | 66,000 |
| 2005 Sienna | 62 | 5% | 71,000 |
| 2004 Sienna | 111 | 5% | 62,896 |
| 2003 Sienna | 11 | 10% | 75,000 |
| 2002 Sienna | 10 | 6% | 98,000 |
| 2001 Sienna | 9 | 5% | 145,000 |
| 2000 Sienna | 20 | 6% | 152,859 |
| 1999 Sienna | 5 | 2% | 122,000 |
| 1998 Sienna | 8 | 3% | 102,000 |
| 1996 Sienna | 1 | 33% | 51,290 |
When owners reported it
Related recalls (1)
Vehicle speed control:accelerator pedal
Problem: Toyota is conducting a safety improvement campaign involving 26,501 early 2004 my sienna vehicles. In the event the retention clip used to secure the floor carpet cover is missing, the cover can interfere with the operation of the accelerator pedal if the acceleration pedal is depressed to nearly the full throttle position.
Risk: If this occurs, the accelerator pedal can become stuck which could result in a vehicle crash.
Fix: Dealers will replace the retention clip and floor carpet cover at no charge. The campaign began on january 26, 2009. Owner notification is expected to be completed by early april 2009. Owners may contact toyota at 1-888-270-9371, if they have any further questions.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
Vehicle often applies brakes on its own . At first it was only in turns . However now it does it when driving straight on the the freeway or just down the street at 45mph. I have fixed my alignment ,new tires, all of the front suspension and nothing prevents the car from trying to brake for me. it…
Was driving on highway at 60-65 mph. The car continued to accelerate. Pressed on brake and wasn't slowing the vehicle. The driver was weaving in and out of cars as the van started to creek up to 92 mph. The driver and passengers thought they were going to crash and possible die. The driver tried…
The contact owns a 2004 Toyota Sienna. The contact stated that while driving approximately 65 MPH the vehicle suddenly experienced unintended acceleration and the speed of the vehicle increased to over 90 MPH. During the failure, the braking system had failed and would not stop the vehicle while…

Frequently asked questions
Do all 2004 Toyota Siennas have vehicle speed control problems?
No. NHTSA has 111 owner complaints about vehicle speed control for the 2004 Toyota Sienna (5% of the 2,062 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2004 Toyota Sienna vehicle speed control?
Yes: 1 safety recall list vehicle speed control. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
At what mileage do vehicle speed control problems start?
The median reported mileage is 62,896 miles: half of the reports with a mileage came before that.
What do owners say about vehicle speed control problems on the 2004 Toyota Sienna?
The most frequent phrase is “suddenly accelerated”, in 7 of 111 complaints, followed by “parking space” (7).
Other 2004 Toyota Sienna problems
See all 2004 Toyota Sienna problems or vehicle speed control problems across all Sienna years.