The transmission on this vehicle has given me problems. I have had the vehicle in a certified garage many times with complaints of a hard shifting transmission. First Chevrolet told me its normal but there is nothing normal about jerking so hard it throws a drink from a cup holder. Then I was told I needed a transmission wash. That was about $500 for it to fix the problem. Chevrolet told me the transmission was may or may not work and it may only be temporary. In my case it has reduced the hard shifting transmission but its still obvious. Now when I drive I remove my foot from the accelerator when it shifts from 1st to 2nd. I also make sure to keep a spill proof lid on my coffee because I never know when the transmission may throw it out of the cup holder.