I have recently purchased an '03 cts luxury/sport package 3.2L engine. The car runs beautiful however my ABS and T/C lights constantly come on everytime i attempt to turn my sterring wheel. In some cases it will stay off but for the most part it will eventually come on. The 2nd issue is that when i barely use my brakes and also when it is wet outside the front driver side wheel will make a sqreaching sound almost like the rotters are bad. When my oil was changed they said the brake pads and the rotters were good. Im not sure if maybe the abs and t/c light have something to do with this? When i brake normal and not to easy the sound does not come out at all. Just wondering if anyone can give me a tip on what may be the problem before i take it for a diagnosis.