I had an issue where my truck would loose power and not move from a dead stop, and my traction control light would come on. This posed a very dangerous situation when pulling out into traffic. After researching it I found it was a problem with the wheel sensors. Seems they become corroded. I had to remove the sensor from the hub and clean the hub with a wire brush at the sensor port. Then I sprayed it with anti corrosion spray and reassembled it. Have not had a problem again. There is a recall on this problem for previous years but not 2006, so the dealers are no help. FYI... I never had one diagnostic code the whole time this was happening. The dealer had my truck for a week and could not duplicate the problem, so I was left to my own on this one.