Chosen Solution
I have a 2004 honda accord ex. After the car runs for thirty mins, the car will not shift out of first gear, when it is an automatic transmission. I have replaced the solenoid switch and the computer and problem continues to persist.
Check out this web page to help you trouble shoot, there is a ton of good info. http://www.hondaproblems.com/trends/tran…
Generally this is a sign of low or over-used oil. I would check the oil level and its color first. If you can do this, the trans oil should be a red color. If it is not, get it change ASAP.
