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.


fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
15,000 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 transmission problems

transmission problem

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2004 Toyota Sienna Owner Comments

problem #2

Sep 062006

Sienna 6-cyl

  • Automatic transmission
  • 30,000 miles


: the contact stated the vehicle hesitated while pulling out of a parking lot with the accelerator depressed. The vehicle was driven to the dealer who determined the transmission control did not operate correctly. The consumer stated there is a 2-3 second delay in acceleration. When the transmission does activate, it seems to search for a gear and when a gear S found it is usually a low gear which causes the vehicle to lurch into traffic. Updated 10/04/06.

- Midlothian, VA, USA

problem #1

Aug 242004

Sienna 4-cyl

  • Automatic transmission
  • miles
2004 Toyota Sienna le. Vehicle hesitates when acceleration. There is a big delay before the car gains speed. This is a on going problem. Dealer states that the car was made that way and there is nothing that they can do to correct the problem. This hesitation can cause an accident at any time.

- Floral Park, NY, USA

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