GMC 2001 Sonoma Owner's Manual page 75

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Express Down Window
The driver's window switch also has an express
feature that allows you to lower the window without
holding the window switch. Press the driver's window
switch down briefly to activate the express
feature. Lightly tap the switch to open the window
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slightly. The express down feature can be interrupted at
any time by pressing the up arrow end of the switch.
Lockout Switch (Crew Cab)
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Four door vehicles have a lockout feature to prevent
passengers from operating the power windows. It is
located on the driver's door armrest. Press LOCK to
activate this feature. Press NORM and the windows will
return to normal operation.
2-4
Swing-Out Windows (Extended Cab)
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down
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down
When you close the window, be sure the latch engages.
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To open a rear swing out
window, pull the latch
toward the front of the
vehicle and then push the
latch out and rearward.