One problem related to transmission slip out of gear has been reported for the 2003 Saturn ION. The most recently reported issues are listed below.
When I am driving, my car will suddenly seem to slip out of gear, the rpm's will continue to rise while the car starts to slow down and can no longer accelerate. I then have to pull over and turn the car off and restart to "reset" the car and it seems to drive normal again. This usually happens at higher speeds, like while I'm driving on the interstate, but can and has happened at lower speeds as well. I have two children and am expecting another child in July and no longer feel safe driving this vehicle. I feel that this should be a safety recall given the large amount of people who have had the same or similar problems with the transmission in these cars. This happened earlier today, but has happened on a regular basis for over a year.