On my way to work this morning (running a little late) I didn't let my car warm up like I usually do, and I observed something rather odd. The gear selector was in "D", but as I drove for the first 100 meters, I noticed that the car didn't shift up into 2nd gear. I gave it a little more throttle, ut still no up-shift when I let off. A ood 50-60 seconds after I had started the car, it finally up-shifted, but reluctantly. I haven't had the tranny fluid changed yet, but I'm more seriously thinking about it now. Anyone ever run into this issue before?