I thought I'd chime in here and offer this long shot of input. The windows on my 01 VX have not necessarily failed but on just a few occasions have slightly slowed going up, more during colder weather though. I have lubed up the tracks which always does the trick making them move nice and good, just a pain in the a## to have to keep doing that every so often. But, seeing that Isuzu may have known of this original design problem, despite dealers and the like denying its existence, I wonder if Isuzu made this "window channel" correction somewhere after production on any vehicles before releasing them to the public. Probably more so on the 2001's perhaps?

The reason I bring this up is because on my VX, at only 25K, I have noticed on both door panels right near where the door lock knob is, are these small cracks or splits in the plastic forming at that upper edge. As if the window itself was pushing on the door panel causing this very point near the lock knob to slowly split. It just seemed too ironic that both door panels have this same exact crack or split in the same exact location and I can't figure any other reason for it other than pressure from the windows on the panels, perhaps from Isuzu adjusting something inside so they do go up and down correctly.

Anyone else have this or am I crazy?