Passenger power window

[FLTRXS]

Just noticed on my 2020 Sierra Denali HD when i roll up the passenger window, it goes all the way up, then down about 1/2" on its own, no matter what it does it even if I hold the switch. Only reason i noticed was the stickers on the bottom only showing a little.

 

Its still sealed it seams but this cant be normal?

 

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[davester]

Do you have wind deflectors installed?  Is the channel the window goes into free of debris?

[FLTRXS]

Do you have wind deflectors installed?  Is the channel the window goes into free of debris?

All clear, no deflectors. Weirdest thing ive seen.

Roll it down, roll it up it goes all the way, then backs down just a bit, wont stay all the way up

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[bass mechanic]

All clear, no deflectors. Weirdest thing ive seen.

Roll it down, roll it up it goes all the way, then backs down just a bit, wont stay all the way up

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Try resetting the limit detection roll it all the way down and hold the button for 2 seconds then all the way up hold for 2 seconds then see what happens


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