2006 Lexus IS 250 engine problems

A young lady parked her 2006 is 250 lexus,equipped with a "smart key" system, in her attached garage which was on the ground floor of her three story townhouse. She exited the vehicle with the "key fob" on her person, but either inadvertently forgot to shut down the engine or pushed the start button in an effort to do so but was unsuccessful. The young lady did not realize the vehicle was running and after entering her townhouse from the garage placed the "key fob" on a table on the second floor.

The car was shaking and would not excelerate over 40MPH. It was brought in to lexus of pohanka in december of 2016. They performed a top engine clean. The car started having the same issues in the beginning of 2017. I called lexus customer service and opened a case as I was told there was a recall on a manufacturing defect of the pistons. I had paid $1500.00 for the work performed. I was told a should have received a letter in regard to this problem. Lexus was calling it a customer support program.