trac off button

ok, so I'm new at this...please be patient :) I have a 2001 alero. I got it last february (my mustang got hit!!eek!) I've had so many problems with it. This morning I started it and the service engine soon light came on along with teh trac off light. I tried to turn trac on but that didnt work. then i came home, shut the car off and tried to start it again and it went off...any ideas whats wrong? or if its serious?? thanks!

there are tons of threads about this topic...just do a quick search on the forum and you can find your answers