Four problems related to owners/service manual have been reported for the 2009 Honda Odyssey. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Honda Odyssey based on all problems reported for the 2009 Odyssey.
My 2009 Honda Odyssey both power sliding doors neither one works. The driver side slide door opened and couldn't close had to take it off the hinge and do a manual close you just can't open it or the door will completely come off. The passenger side sliding door will not open at all. Before all this happened the driver side slide door wouldn't close unless I was in drive or reverse. I have called around and this is an issue with a lot of Honda Odyssey van doors. To me this is a hazard due to the fact my kids have to climb in the back just to get in the car cause my doors will not even open manually. Why has this not been made an issue if there's so many vans with same said sliding side door issues. Some of us can't afford major fixes like this that shouldn't even become an issue.
While driving on the highway at approximately 70 mph my wife's 2009 Honda Odyssey began to shake as I stepped on the gas the engine light came on and the vehicle lost engine power and I had to manually steer to the side of the highway. . Upon opening the hood I could smell that something was burning. The vehicle was towed 79 miles to my mechanic. I was informed that a spark plug blew out completely and a portion of that plug entered the cylinder and damaged the engine. The entire threading of the spark plug was damaged and melted into the engine. I was informed that the entire engine needs to be replaced.
The manual lift gate (trunk) no longer stays open. Same part failure as power lift gate recall (12v062000) but not covered since it is a manual lift gate (due to lower complaints and injuries).
My tailgate support struts failed in 2012. They were subject to a recall and were replaced. They have now failed again in the same manner. I had to replace them again 2/12/2015 at a cost of $!56. 31. Just as when they were recalled, the struts stopped supporting the weight of the door so that when it opens, it suddenly comes down again. It has hit me in the head as I reached into the rear to grab a bag. Even when you open it manually, the struts cannot hold the door open and it slumps down about halfway open. This is the exact same issue that caused the struts to be recalled in 2012. This is a design defect in the 2009 Honda Odyssey and Honda should pay for any repairs.