Thee traction control on your Tahoe is more sophisticated than on older vehicles. Many times no won't even know it's working, when it actually is! You might play with it a bit and try to do a "brake stand" with it on (lots of luck) and then turn it off and try it. Personally I only drive with the traction control on when I am in a) two wheel drive and on wet pavement, helps keep from "losing it" in hard acceleration on a highway entrance ramp). b) 4 wheel drive and on ice (not snow). Most of the time I prefer things "real".