My understanding and from playing with it:
Press button once, TC lights up to show Traction Control is off.
Hold button ~10 secs, and TC light goes off, then both the TC light and the squiggly lines under a vehicle lights up, to show that Stabilitrack is off. Go faster than 35 MPH and Stabiltrack light goes off, and is re-engaged.
Ok, here is one for you. If you turn off Stabiltrack, go out in the middle of a snow covered parking lot and start spinning your tires, does Stabiltack re-engage when the tires spin above 35 MPH even if you are just sitting still as tires spin? I betcha some of you have turned Stabiltrack back on by doing that...
2015 Canyon SLT, Copper Red, 2WD, CC, SB, V6, Tow, blk leather, factory spray liner, safety pkg, generic roll up bed cover, Tekonsha P3 Brake Controller.