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.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
38,922 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.

2009 Honda Odyssey transmission problems

transmission problem

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2009 Honda Odyssey Owner Comments

problem #3

Aug 092009


  • 7,767 miles


Transmission has rough downshifts while decelerating. First rough downshift occurs around 40-45 mph. The second rough downshift occurs around 25 mph. During the second rough downshift, it feels as though the transmission is shifting twice. You can also hear a distinct clack noise and feel it through the floorboard of the vehicle. Transmission software updated twice but problem still exists. We also experience abrupt deceleration when removing your foot from the accelerator around 30 mph. The van slows down abruptly as though the engine has stalled. We feel the transmission behavior is a safety issue because you do not know what level of engine/transmission braking will occur when you take your foot off of the accelerator. This makes you feel uncomfortable driving the vehicle.

- Granville, OH, USA

problem #2

Oct 262009


  • 0 miles
2009 Honda Odyssey - vehicle has moderate vibration at around 40 mph. Root cause according to Honda is defective torque converter clutch. Have not verified root cause with independent source. No accident reported as of 10/26/09.

- East Amherst, NY, USA

problem #1

May 222009


  • 109,000 miles
Van broke down in teh middle of busy highway and traffic.

- Ballwin, MO, USA

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