I have a 2002 trailblazer and I drained the battery dead and now the security light is on and it wont start. What I do?
Thanks, Robby

Try turning on the ignition for 10 minutes, turn the key off see if the security system is reset. How did you run the battery down?

Make sure the battery is fully charged. You may have to disconnect the battery to do this. These TB's don't like funky batteries or voltages. Also, if you tried to jump start it, double check ALL fuses.