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Old 12-21-2017, 10:03 AM   #4
brihorse
Detroit Muscle
 
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Drives: 68 C10 Stepside,87 Grand Natl
Join Date: Aug 2008
Location: Grand Ledge, MI
Posts: 139
My car is in the garage for the winter but I think it works like this. Hold down both window buttons for a second, switch to the rear windows and hold both buttons again for a second. At least it works this way to get all four up. You can also hold the unlock door button on the fob for about 5 seconds to get all four windows down.
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2016 2SS Vert, Polished Forged Wheels, Auto, NPP, Navigation, Suede Knee Bolsters, Footwell Lighting, GM 1LE Front Splitter, 50th Grille w/Satin Chrome Accents, BMR 1" Lowering Springs
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