Acceleration Hesitation

I have a 2000 Tahoe that intermittently hesitates from a complete stop. In conjuction with this the "low traction" light comes on. It doesn't happen from every stop. I have had it into the dealership a number of times and they can't seem to figure it out. I just had it with them for the last week, they were sure they had gotten to the bottom of and it happend on the way home.

I am wondering if anyone else with a tahoe that has the low traction option has this same problem.