Engine light, trac off antilock light all on

I have a 2001 oldsmobile alero, with 61000 miles and the 4 cylinder engine. My problem is I was driving my car and all at once the engine light, the antilock brake, light and the traction off light all came on at once. The brake wasnt even being used at the time. They just came on. The brakes work fine.I work
in the business and come across alot of other oldsmobile cars and alot have the sam three lights on.
what is the problem?