ok this may not be in the right place but anyway . I got a new 2012 Verano looks great runs great sound great ok its great .... but on the highway on a clear day but very cold with a little ice strips /under pass . doing around 55 mph the back tires will slide like a little kick out just a little . you feel it it like wow . so I had a new G6 about 5 years ago that did the same thing and told the service dept. at the dealership and they put it on the rack and said it was a little off and reset the alinement and it was great I will add this took about a hour . ok so I call the service dept ( same one ) and they said well bring it in and we will check it , plus its time for your 1st oil change ... cool . now for the best part . I bring it in at 10 a.m. and have call ahead for a loaner car . and told them I have my car back by 2 pm . they sure we can do that . so I call about 2 pm and I was told that it was not ready yet but we will call you when it is ready . ok I am late for work its 4:30 pm and I call and they said they look at the tires and they are ok . OK you just looked at the tires . did you put it on the alinement rack ... no ! so I go to pick it up and they just started the oil change. yes I happy I got a 7 hour oil change and they put in 40 pounds of air in the tires . thats right 40 all 4 tires . I could have gone to discount tire and got a check up in 15 min.