Hey Guys I got a used 2012 Ford Focus which I bought last week. Manufacture date is June 2011
When I was test driving it, I didn't notice a shudder in the tranny. However yesterday when I was stuck in a traffic jam where we were barely moving, I noticed a shuddering issue in how it shifts.
I guess I shouldn't assume that a used car had the update done.
I will try to bring the car in for service to update the firmware. Once I get it scheduled, I'll try to report back on the results.