Anti Lock Brake Service Light on 97 Buick Regal

I have a 97 Buick Regal GS, and the "service vehicle soon" and "Anti Lock" lights keep going on and off. After a while they just stayed on whenever the car was running. I had the hub bearing assembly replaced and the lights turned off. Now they come on, sometimes when I start my car, sometimes while I am driving. When the lights are on Anti Lock doesn't work along with Traction Control. Also steering gets harder. What might be the problem? Thank you Hi, you need to get the codes read so you can determine what parts need to be tested and replaced. It could be a faulty bearing that was replaced or something totally differant but until the codes are read there are alot of parts that could be replaced before the light will stay off. Let us know what you find out. BillCar Repair Talk's forum.