Brought my car to the dealer 3 times already for the same issues. It shutters/shakes when driving around 40MPH. 1st dealer says they can't find anything wrong with it and according to GM it might be the way the transmission is. 2nd dealer says it has a shift learn transmission and needed to put miles on it. It shouldn't shutter/shake when driving down the road. I didn't have any problems with my 2013 Equinox and do regret buying the new one.