What a $56000+ piece of junk I bought. At 8500 miles I get a check oil level at next refueling message. So the next morning I check the level and it is fine. About 2/3's high on the min/max line. So i figured no big deal I'll just stop by the dealer and see if it is something i need to worry about. They say the need to do an oil consumption test on the motor.This is basically topping off the oil and driving it for 2000 miles and rechecking the level. Sounds reasonable to me. Four hundred miles later the message comes back again. Oh by the way the message could not be found on the computer. It should be there from what I understand but nope no message. The dealers service manager and service director say if no message appears they can not fix it, and I need to drive the car for the remainder of the 2K test. I had to take a picture of the message in order to prove it existed. Then they can't fix a rattle inside the car after four attempts. The problem took thrre times to fix after numerous heated discussions about why they could not fix it. It turned out to be a faulty wire harnes to the oil sensor. This resulte in the reoval of the oil pan,alternator belts and other partsunder the hood. The rattle was a found somewhere in the panoramic roof. Just this weekend the radio/nav/ command center started to malfunction. It shut itself off for no reason, again no codes where there should be. I also have had my rack and pinion steering replaced.After two complaints about grinding and rattling around turns. The vehicle still makes noises when making K turns. And to top off my wonderful experience at "Recovery Racing" Massapequa Park, Long Island, New York they damaged my vehicle by putting two holes in the rear bumper. Thank God for my 3M clear Bra. After five weeks I am still waiting for a $300 check I paid for the repair.Do not trust this dealership, especially the service director,service manager and GM. I was promised return calls form them today and have received none.They are good at one thing though, repeating the corporate line "I'm sorry about your problems". I'll look into it and get back to oyu. What a joke..... on me for owning not leasing.