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.


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,500 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.

2012 Toyota Sienna engine problems

engine problem

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2012 Toyota Sienna Owner Comments

problem #1

Feb 152012

Sienna 6-cyl

  • 1,500 miles


Joining highway in a situation where vehicles giving way cause hesitation and then give way causing braking then acceleration repeatedly, transmission refused to downshift on kick down, vehicle would not accelerate, actually slowed significantly forcing following vehicles to brake.vehicle eventually began to pick up speed.generally poor response from transmission in all modes. Transmission drops out of drive at low speeds causing engine to race before taking up drive, very hard to operate vehicle smoothly.. excessive engine vibration and noise for this price point, known more refined diesels knocking from steering column on constant radius turns when making small steering corrections, detectable at low and moderate to high speed.

- Bayside, NY, USA

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