I guess if you hold down the unlock button for a few seconds, it will roll the passanger side and driver side window. To release the heat on a hot day prior to entering the truck. I thought it was cool since I had no idea. Does anyone know if the lock button roll the window up if holding it down for a few seconds. Mine doesnt seem to do that so I dont know if its possible or if my remote is defective.

No roll up feature.
Roll up would of been nice though. Be careful of the roll down I've had the keys in my pocket and accidently had them roll down, just glad it didn't rain before I noticed they were down.....that and the kids playing with them is dangerous too, been a few times the hatch is open and the windows down :(

And I wish they had set up the rear windows to roll down also like they do in my G35.

Stick the key in the door and lock the doors. If you hold it to the lock position it will roll up the windows. If you unlock all of the doors with the key and hold it there it will roll the windows down like the key fob.

Cool feature, thanks for the info.