Vehicle at operating temperature, running, in gear and at a stop. Making a left turn into traffic. I release the brake and apply the accelerator, the car rolls out into traffic but no power, I press more and more until it is 100% throttle, all the way to the floor. Then after about 5 seconds the vehicle moves forward. Complete loss of response/power for 5 seconds. Thankfully no traffic coming. This happens a second time with the same circumstances, different location. Press the accelerator, no response, sudden loss of all power, then after 5 seconds it responds. This time there is traffic coming to my driver’s side at 50 MPH, I was trying to press harder but it wouldn’t respond. There were no warning lights, MIL, sounds or messages. Toyota wants $169.99/hr plus tax to investigate.