Chevrolet Tahoe Traction Control Light

I Just Installed E3 Spark Plugs In My 2010 Tahoe 5.3 Motor. The Plugs Where The Only Change That I Made. I Turned The Car On And It Ran...

How Much Will It Cost To Fix A Stabilitrak? ?traction Control Off Indicator Is On

When Leaving From A Stop Truck Moves Really Slow And Make A Loud Moan Noise From The Front. Once Noise Stops Truck Moves Normally.what Is...