One problem related to transmission not engage has been reported for the 2004 Honda Pilot. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Honda Pilot based on all problems reported for the 2004 Pilot.
Around 35-45 mph, loud noise is produced inside my 2004 Honda Pilot transmission. The vehicle has 117,000 miles. It sounds as if gears are not engaging, and are rather chipping off. I took the car to Honda before my warranty expired and they stated they could not reproduce the noise. I continued to drive the vehicle, and the noise would intermittently happen. Now the noise happens all the time around 35-45 mph as I let off of the accelerator a bit. I took it to my local mechanic(who I trust) and told him to check it out. He stated that a recall was out for the 2004 Honda Pilot automatic transmissions. I took the car the next day to the Honda dealership, and they stated that my vehicle had already received the recall, and therefore the automatic transmission was replaced with a new one (transmission number 2 I will call it). I asked Honda to investigate the cause of the transmission noise to see if it was something else. Honda tested the car, and it now again needs another automatic transmission. If I replace the transmission as they recommend, this will be the 3rd transmission in the car and I do not even have but 117,000 miles on the vehicle! the Honda representative stated that the noise will continue and eventually lock up. . . Which could cause a serious accident if on the highway when it occurs. This is a serious safety concern, and I am not pleased with Honda's customer service in this instance. Upon researching, I have seen numerous posts on the internet, and official complaints stating they too are having the same issues even after the recall. Honda should have a 2nd recall as the safety of their customers is in jeopardy. This is ridiculous, and Honda should step up to pay for the repair as they clearly have a problem with their transmissions even after the recall.