Within the last couple months, my wife's X has been shifting hard from 1-2 and 2-3. There haven't been any changes in her driving habits (unfortunately ) and no additional drivers. I reset the feature that "learns" one's driving style (can't remember the official name). I'm not sure that calling it a hard shift is accurate as it is not clunky, it is more of a lurching feeling - smooth but abrupt if that makes any sense.

Anyhow, I searched a bit and didn't see anything, hence the post. Any ideas out there?