I have added a comment to an earlier post which may clairfy the problem that I believe exists. The traction control system causes power to go to zero and it stays that way for 5-7 seconds after the front wheels are straight and the rear wheels are on solid ground.
On my vehicle, the traction control can not be turned off unless you hold the button down for about 5 seconds. This is not patticularly convenient but I can live with it when I know I am entering a scenario in which I probably want the trac control to be disabled. However, if the vehicle were ever in an emergency situation in which the traction control had not been disabled and all power was removed for several seconds, this feature could easily result in a serious accident.
I think Lexus made a bad set of decision on this design. I would be happy if it worked like my BMW or Camry, but it doesn't.