I purchased the vehicle certified pre-owned at Autonation Ford Scottsdale AZ. I have taken it in under the warranty and out of warranty for a vibration you feel on the passenger side. The RPM gauges bounce up and down as well as speedometer. I was advised it was running to lean. I have found 2 times a near death experience when accelerating from a light the car will shift itself from automatic O/D to S mode and the car will lunge downward and engine racing where causing 2 times a fierce rear end collision into me as could not get out of the way!

I noticed the transmission had trouble finding the correct "gear". First it would make noise and seem to downshift. Then if I was on a downgrade it would get loud and downshift very quickly. It would jerk enough to jar you. I kept noticing the transmission vibrating more and more and the CVT would hold onto gears unless I hit the accelerator. I took it to a dealership who had a technician drive it. While he drove and I was in the passenger seat it vibrated so bad I could feel it but the technician said there was no loss of power and it was fine. The rental Nissan Altima I was given had more miles on it and did not vibrate or downshift. I was told bring it back if it occurs again. And that the chip was updated with the latest fix and if there was a problem it would take care of it.

Well the traffic circle I pass ever day has a mild incline and the car jerks so hard you would think the transmission is going to fail. I don't believe Nissan will admit this problem. I bought the car new and it was garage kept and well maintained. The truth is I would like to get rid of this car and never get another Nissan. The transmission is unfixable and worse still is the fact that Nissan will not admit the problem.

I first noticed when it was minus 6 degrees while driving to airport. Then on my return a week later at 16 degrees. Still there but not as bad since its warmer.

Update from Feb 8, 2016: Transmission vibration is now starting at about 1200 rpm to 2000 more so in the cold weather,and when going down hill coasting, I had it to dealer last winter of course they couldn't find anything. It looks like round two I had 4300 miles then now I have about 8500 now.T am going to go to a different dealer