I bought a 2011 Mazda 6 in mid January of this year from Bommarito West County. Everything went pretty smoothly with the sale and purchase of my car. I purchased the car because it came certified, and it also came with a bumper to bumper warranty for the first year or 12000 miles. So after having the car awhile, I hear a squealing noise coming from my engine when I was going through a drive through or sitting at a light. I brought it into the dealership service department to be checked over for the noise and for any other issues there could be before going on vacation. The guys there told me, "cars just make noises sometimes." I don't know if it's because I'm a woman or what, but I was shocked at this response. So I talk to my uncle who is a mechanic and he tells me its a gasket between the exhaust and catalytic converter. He also gave me the TSB which is 01-007/14. Then my battery goes bad. (It's only been a week since they looked at my car). I bring it back to the dealer a second time within a week and a half, and tell them I am not happy they brushed the problem off when the diagnosis has been public knowledge for over a year! AND they didn't catch my battery leaking acid a week ago. I don't think they even looked at my car. Then they verify that it is indeed what my uncle said only to come back and say that neither issue is covered under my bumper to bumper warranty or power train warranty. After arguing with the manager, he caves and agrees to fix the problem this "ONE" time, and he has no response as to why these problems were not acknowledged the first time I brought my car in. The dealership needs to stand by their warranties! If I hadn't brought the car in a second time with a second opinion, I guarantee you they would have waited until I was out of warranty to say, 'oh this is what's wrong with your car'. Very disappointed in the service I received. Take your car somewhere else to be serviced!