Had to take this car back to dealer twice only has 808 miles on the car first time was 776 miles, reason the check engine light came on. reason Knock sensor but there was nothing wrong with the sensor, Said there was a software problem and engineering was working on it. So took it in today with the same problem and same code and they said there is a software update available but they didn't have the two hour needed to update the computer so it goes back in Thursday and get the update to the computer to fix the Knock sensor problem. I'll let you all know how it goes.