One problem related to automatic transmission has been reported for the 2004 Chevrolet Classic. The most recently reported issues are listed below.
The consumer states she purchased the vehicle used in March 2005. The transmission was jumping real badly. This always happened. The dealership told her it was alright, she then had the vehicle checked by another mechanic and was told the transmission was defective. . It happens when the vehicle went above 25 mph, and continued to happen. She has not called the manufacturer, but will call them next. When the vehicle was purchased it did have a little jump in it, and she took it to the dealership. They did not say they performed any work, but the vehicle was okay. The jump has gotten progressively worse.