1998 GMC Suburban Owner's Manual - Page 109

Power Windows (If Equipped) 4-DOOr Utility and Suburban 2-Door Utility If you have the optionalpower windows, the controls are oneach of the side doors. The driver's door has a switch for the passenger windows as well. Your power windows will work when the ignition has been turnedto ACC or RUN. Push therear of the switch with the power window symbol on it to lower thewindow. Push the front of the switch with the power window symbol onit to raise thewindow. 2-31