Three problems related to transmission gear slipping have been reported for the 2004 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Honda Civic based on all problems reported for the 2004 Civic.
I have a 2004 Honda Civic ex. Driving to glendale (1 hour from where I live) in the city I started noticing the transmission was jerking. Shortly after the engine light came on. Going up a hill my transmission wasn't working anymore and was revving without going into gear. I was in motion on a hill on a very tight road where only 1 car can pass at a time. And cars were parked on the side of the street. I almost crashed into the parked cars because I could't control the jerking of the car and the transmission slipping. I had cars coming towards me and had the car stalled on the road and had to block the traffic for 30 min before my friends could come and help me move the car. There was little amount of space and parking and had to push the car for a while before finding a parking spot. The car has only 123,000 miles, the transmission fluid is fresh and clean and never had any transmission problems. Within 15 min the whole transmission blew up! I really hope Honda can take care of this problem because I see that there are multiple complaints about Honda's transmission failing in these Honda Civics between 2000 and 2004.
The car transmission is slipping. Sometimes it works and sometimes the engine is fine, but when I accelerate the car does not move forward right away. Engine light stays on. It has plenty of fluid, but the transmission does not engage.
Had problems with the transmission slipping for a couple of months. Then while accelerating into traffic it decided to stop working completely and leave me stranded across the middle of a 4 lane highway with oncoming traffic. I have since replaced the transmission and within 2 weeks the new transmission is doing the same thing.