That's normal behavior (no OD until warmed up); it's to prevent damage to a cold transmission.Just an observation regarding the V6 no up-shift beyond 2nd gear until warmed up thing: Mine does not shift into 3rd or OD until the temp gauge is 1/8th of an inch over the cold temperature line (east coast weather).
My initial reaction when I discovered the no shift thing was to be gentle, hoping a lower rpm would prompt a shift. Not so. I found that bringing it to the point it should shift into third (but doesn't), then accelerator to the floor for about 2 seconds and releasing it fully, allows it to shift regardless of temp. I hope it works for you as well.