One problem related to frame rust has been reported for the 2002 Saturn LS. The most recently reported issues are listed below.
2002 Saturn l-100 sedan. Front subframe assembly rusted to the point of total failure on the right hand side where lower control arm connects. Failure happened in parking lot so there was no personal injury or crash. Failure took out right inner cv joint and drive shaft. Wheel well liner and fender also damaged. Front subframe assembly had to be replaced with new part. New cv joint and drive shaft installed.