The moon roof made noise from the start. The dealer put foam in it twice. Turns out after the warranty was up that the actuator is failing. It cannot be tightened & is a $1,000.00 repair that GM will not back up. The glass can be seen bouncing. The car hydroplanes in light rain, slush and snow because of the wide low profile tires. Expect to pay a fortune to replace the low profile tires. Window controls are poorly located. Rear passenger seating is small. Wipers stop working sometimes. Takes a technician to replace the air cleaner. Gas mileage is very good. Disappointed that GM will not back up Mfg defects. Do not leave the dealership without documented repair paperwork.
The gas mileage has been this cars saving grace. I drive long distances daily and it gets from 26-34 miles per gallon depending on the grade of fuel.
GM needs to stand behind their defective moon roofs. They cannot be repaired. They must be replaced. Even if I spend the $1000 to repair it, I can expect a return failure. They need to do something about these vehicles hydroplaning. I'd suggest a narrower rim. Vehicle has various electrical issues