I think it is explained in the owners manual or the video, I remember seeing it someplace. If I remember correctly it allows the AH computer to let the car get further out of line from the established norm before the AH intercedes, this allows for more aggressive driving, and second it turns off the traction control. ABS is not affected. That's how I remember it, but then again there are two things that go with age, the first is... ugh I forgot.
vettepilot
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