Embarrassed owner of a 2005 6.0 GTO here! Has anyone experienced safe mode, engine light ON problems? It's my 2nd time returning the car to the dealer within 3 months of ownership to correct the same thing. Something about the sensors are bad - hmmm yet I still have to make my monthly payments for driving a Krap machine????? (squeezing a lemon right now....and it's very sour)!