Brake Disc Pads problems of the 2011 Chevrolet Traverse

We have only had our Traverse since January, but have noticed numerous times that the brakes grind (at times) when applying them. The car only had 24,000 miles on it when we bought it, it shouldn't have needed brakes already. Finally had money for the brakes to be checked and we need pads and roters on all the wheels. It seems that this is a problem with a lot of the Traverses. Also, we have the problem which I have read about on here that when sitting at incline the car like to roll back. It has caused me to hit someone when on a hill. Of course there isn't a recall on that either. I don't feel that these cars are safe for younger drivers. I have two sons that I won't let drive my car do to the issues with it. I think someone needs to do something before someone is killed by all of these problems. I have tried to get all of the recall notices taken care of, but dealership we bought the care from never has the parts.

Lost both pads and rotors on the rear of vehicle, premature wear, not normal. Move forward to present may 9 2014. 37,000 miles and the front brakes, poads and rotors, need replacing and the rear pads already need new pads. The brakes have to be malfunctioning in some way. Called gm for the first incident and received some re-imbursement. I have not had repairs done on second incident but have made an appointment to secure repairs. It seems that what controls braking, example the proportionate valve, has failed in these instances. The results of the problem are the brakes need to be replaced evry 18,000 miles and that is not normal. My brakes, especially the rear last between 50 and 60 thousand miles and all other cars owned and the front normally last at least 40 thousand mile. Gm has made mistakes in building the brake system with inferior parts.