One problem related to transmission shudder has been reported for the 2007 Honda Accord. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Honda Accord based on all problems reported for the 2007 Accord.
I was passing a large truck, downgeared into third gear, let out the clutch, and the transmission popped out of third gear. I found myself in neutral facing on coming traffic, and had to slam on my brakes and pull in behind the truck (almost had a head on collision). This popping out of gear, and difficulty shifting into gear has been going on for over a year and occurs perhaps 3 or 4 times a month. After this near miss I decided to get it fixed. Before going to the dealer this morning I did an internet search on "3 gear Accord 6 cylinder manual" and one of the results was Honda service bulletin 08-020. This bulletin covers my 07 Accord and is for "transmission grinds when shifting into 3rd gear, pops out of 3rd gear, or is hard to shift into 3rd gear, note: these symptoms can be intermittent and sometimes more noticeable in colder climates. Faulty 3rd gear synchronizer or shift sleve" sounds exactly like my problem so I went to the dealer today to have it corrected. The dealer went for a test drive and couldn't duplicate the problem (it can go for over a week without showing up), he said Honda's policy was unless they could see the problem Honda would not authorize any repairs to be made. I called up us Honda (800 999 1009) and spoke to a mr jimmy rudner who verified what the dealer said. So Honda has found a problem with their transmission (the one that almost caused me to have a head on collision), released a service bulletin on how to fix it, but refuses to do any repairs until this 3 or 4 times a month intermittent problem starts to fail often enough for it to fail while the dealer is actually driving the car. Meanwhile the problem continues.