I have a 2003 Trailblazer, this morning, when I tried to start it, the display says 'unknown driver' where it usually says 'driver 1' and it will not start. All of the dash displays come on as they normally do which leads me to believe the battery is good. I also noticed that my clicker will not lock or unlock it anymore. I am a female and do not know much about vehicles, so any help you can give me will be greatly appreciated!!!! Thanks in advance.