Also, another use for the silcone spray, if you get debris or dirt in your window channels it might prevent the auto up from going all the way. The window will stop midway and lower thinking it detected something blocking it. Spray a little silcone along both channels and it goes back to working smooth as butter.Hit the tailgate latch with silicone spray once or twice a year. Had the same issue. It was caused by dust/dirt.
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