2005 GMC Envoy Owner's Manual - Page 89

Your vehicle will have one of the following sets of power window switches: Press down the top of the switch to lower the window and pull up on the switch to raise the window. Press the top or bottom of the switch to raise or lower the window. If you hold the switch down for three to seven seconds after the window has been completely lowered or raised, the window will not operate for about 15 seconds. 2-15