[smitham]

So I thought things were all good when we got the H3 back last night. The dealer cleaned a speed sensor and thought all was well. As it turns out all was not good. When my wife took the truck to work (8miles) and then to lunch (4-5 miles) everything was okay, then when she was on her way home the mystery brake applier showed up again (she was going +/- 45mph down a major road 4 lanes each way and the truck just slammed on the brakes and applied traction control all at once). At this point I told her to pull over and call on-star and get the truck towed to the dealer.

At the dealership I was able to talk to our actual tech and explain everything (I also shared the info that f5fStop provided me). We plugged in the Tech II and scanned all the modules and found no codes, so we went for a drive with the Tech II attached to see if anything seamed wrong, well as luck would have it, the truck worked perfect. So now the tech is going to drive it tomorrow until it duplicates the problem.