GMC 2000 Sonoma Owner's Manual page 96

Press the side of the switch with the up arrow to raise
the window.
-
Express Down Window
The driver's window switch also has an express
feature that allows you to lower it without holding the
window switch. Hold the driver's window switch down
for more than a half a second to activate the
-
express down feature. Lightly tap the switch to open the
window slightly. The express
interrupted at any time by pressing the up arrow end of
the switch.
Press the side of the switch
with the down arrow to
lower the window.
-
down
-
down feature can be
Swing-Out Windows (Extended Cab)
When you close the window, be sure the latch catches.
-
To open a rear swing out
window, pull the latch
toward the front of the
vehicle and then push the
latch out and rearward.
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