what is going on?

what does it mean when the ABS light, service vehicle soon light and trac off light all come on at the same time on a 2000 pontiac grand am gt with ram air? The car has a little over 77,000 miles on it and was just parked for a day and a half after I worked before the lights came on then when I started it to come to work there they all were.

Welcome to AF.

YOU'll have to get the car scanned with an ABS capible scanner.
Most likly its a wheel speed sensor, but you cant really tell which one with out getting it scanned.