One problem related to rear suspension axle has been reported for the 2000 Saturn LS. The most recently reported issues are listed below.
I have a 2000 Ls1 Saturn. I bought it brand new. In the past year I have had to take it in other than for maintenance because something has gone wrong. October 2002- my hydraulics went out of my clutch causing me to be stalled without a car. A few months ago it was recalled due to something gone wrong in the rear axle. So Saturn replaced it. On Thursday, October 16, 2003, I took it in again because I was hearing a rubbing noise when I made sharp left turns. Turns out I need a $1400 new steering rack because there is an internal leak from my power steering fluid. My car only has 36,800 miles on it. But of course the warranty ran out 800 miles ago. I don't think a fairly new car should be having all these problems.