my driver's window will go down but not up, no idea why.

What is your question?

It was happening infrequently, then it just stayed down about a week ago, and I can't get it to go back up. The panel works both rear windows fine, but only intermittently works the passenger side window. It's a little more than halfway down right now, but I don't dare test it any further. It's winter here, and I can't drive like this much longer.

What makes this problem better or worse?

nothing.

How long has your 2010 Jeep Commander had this problem?

since purchasing the vehicle 2 months ago, but the not going back up at all for a week now.