Air Brake Problems of Saturn SKY

I purchased a 2008 Saturn turbo Sky in September 2007. In January 2008, I took the car in for service because of the brakes. After the car has sat for a period of 5 hours or more and is moved, the brake pedal pushes almost to the floor the first 3-4 times brakes are applied. You are not certain the car will come to a complete stop. Saturn kept the car overnight and told me there was nothing wrong with the car. . . . That turbo Sky autos all operate in this manner. They tell me that all turbo autos operate in this manner. I do not believe this for an instant. I witnessed a tech move the car, stopped the car, came out and informed his supervisor that he would not drive the car the way the brakes functioned. They kept the car another day and the next day I realized nothing had changed. Later, I was informed that the ntsb was looking into this problem. Last month, I received a letter saying that Saturn was aware of a braking problem with the turbo Sky and I was asked to bring the car in for a calibration adjustment. I did this, received the car back and it's basically the same. I would like to know if there really is an investigation going on or is this just my car. I've discussed this problem with people I know very familiar with turbo engines and they say this should not happen at all. I will look forward to hearing from you.

See all problems of the 2008 Saturn SKY 🔎.

No brakes on cold start. First thing in the morning or when car sit for more than 4 hours. Terrified to try cruise control as I heard it will cause brake failure while driving. Dealership said it was "normal" and needed to let vacuum build.