One problem related to tail light switch has been reported for the 2001 Saturn SL. The most recently reported issues are listed below.
My Saturn that I've been driving for about a year and a half now, completely cut off in the middle of me driving it. Luckily I was at a drive they so so serious damage to me or anyone else. Could not get it to start back up for a good 5-10 mins. Also the transmission is going out in it and I'm constantly having to add fluid so it doesnt skip. The rear tail lights keep having to be replaced because they keep blowing out.