Problems with 2004 Chevrolet Impala LS 3.8 liter drivtrain

I own a 2004 Chevrolet Impala LS 3.8 liter sedan and am having trouble with the "Traction Active" feature on the automobile. It occasionally engages when I pull away from my house in the morning after the car has sat all night. It is momentary and stops after I leave off the throtle slightly and step back down slightly on the throtle. Also after driving at highway speeds from work to home[approx.1/2 hour or more] there is a noise that is coming from the front end of the car when I make a left turn onto my street[slight uphill grade to the house]that goes away after I straighten out.I, ve checked fluid levels, for loose parts and connections, tire rub, ect..