One problem related to vehicle shudder has been reported for the 2012 Ford Fusion. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Ford Fusion based on all problems reported for the 2012 Fusion.
Was accelerating to get on the interstate and the car delayed in accelerating. Since it was a new car (purchased in June on 2012) I really didn't think much about it. Over the last two years, this problem happens intermittently with a delay/harsh shift, a grumbling/vibration in the car when shifting in lower gears from 2nd to 3rd. This also occurs during down shift between 3rd and 2nd gears causing the car to "lurch forward" as if you have been rear ended. I now have 69,000 miles on my car and the warranty is gone and every time I ask Ford to look at the problem they can't replicate the problem (trying to tell me that the way I drive my car is too harsh) they did reprogram the tcs and the last time I tried to make an appointment before my warranty expired, the service department called me back stating the following: "it sounds like you are having problems with your transmission and it will be 6-8 weeks before we can get the car in for service".