 As has been reported to Toyota and the NHTSA, the throttle body will fail on this vehicle due to a design flaw.  Do a web search on this model of Toyota and you'll see numerous instances of "throttle body failure."  We just had to spend $1100 getting it replaced on our 2004 Camry and because it is a design flaw, it will fail again.  The car will simply stop in the middle of the road with no way of restarting it.