On my 2007 Chevy Trailblazer the message center shows "Stabilitrack Active" while im driving straight ahead. You can feel the Stabilitrack activate and the engine braking the vehicle. When the vehicle is first started, the message center shows "Service Stabilitrack" and "Service brake system". I havent taken it in yet and wanted to see if anyone else had heard of this. Its bad enough to where even when I have the shifter in park and the car idles you can feel the engine missing from the Stabilitrack trying to kick in. When I press and hold the button on the shifter to disable Stabilitrack, nothing happens. I've searched the forums to no avail. Any ideas what could cause this?