Major loss of vehicle power on the highway about 20 times the past few weeks. Luckily, each time, I managed to get into the breakdown lane without an accident occurring. Turning off and on the vehicle sometimes returned it to normal operation. Some times, the enginewas 'racing' when the car was turned back on. And other times, I had to performmultiple off-on cycling of the engine before normal behavoir was restored. The check engine light was illuminated when the problem occurred. This behavior also occurred a few times last yearbut since the check engine light did not remain on, I wasn't sure that the dealer would be able to reproduce or diagnose the problem. I'm not sure whether or not the recent hot weather was associated with the problem to occurring more frequently. I made an appointment with acton Toyota for 7/20/2013. They diagnosed the problem as being caused by a failed throttle body and parts are on order. They said that the repair would be $1300. So, I'm now researching whether this defective part should be replaced under the customer service program of the Toyota economic loss settlement that received final approval by the federal court on 7/19/2013. It is unacceptable for a throttle body to fail on a vehicle with only 36K miles and 4 years old.

- Boxborough, MA, USA

On Nov 11, 2012 I was backing into my driveway when I felt something under my foot accelerate. My Scion surged backwards out of control. By the time I got it stopped I had run over and destroyed my picnic table also doing damage to the back of my vehicle. When I got a postcard a couple days ago regarding sudden acceleration I realized was Toyota was having a problem with acceleration and I should report it.

- Scottsburg, IN, USA