I am having this problem in my TC4, I will be running find and all of a sudden I lose throttle and have to wait for it to roll to a complete stop before it will take off again. In my troubleshooting I found that I get a blue amber light until it stops spinning wheels and turns back red then I can give it throttle again. I read the light code guide and it said something about motor thermal cutoff but this is not happening as it cuts out on throttle control but keeps rolling and the motor is only warm to the touch. I did take my drive train apart and found nothing binding as I suspected. I am running a 21.5 in trans am class.