GMC SIERRA 2020 Owner's Manual page 49

48 Keys, Doors, and Windows
Warning (Continued)
prevent operation of the windows.
See Keys (Key Access) 0 9 or
Keys (Keyless Access) 0 12.
The power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained
Accessory Power (RAP) 0 216.
Using the window switch, press to
open or pull to close the window.
The windows may be temporarily
disabled if they are used repeatedly
within a short time.
Window Lockout
With Power Folding Mirrors,
Without Similar
This feature stops the rear door
passenger window switches from
working except from the driver
position.
Press to engage the rear
window lockout feature. The
indicator light is on when engaged.
Press again to disengage.
Windows Express Movement
All windows can be opened without
holding the window switch. Press
the switch down fully and quickly
release to express open the
window.
If equipped, pull the window switch
up fully and quickly release to
express close the window.
Briefly press or pull the window
switch in the same direction to stop
that window s express movement.
Express Window Down
: If equipped, this button will be
on the center stack.
Press and hold to open all
windows. Release to stop all
movement.
Use the power window switches to
close each window.
Window Automatic Reversal
System
The express-close feature will
reverse window movement if it
comes in contact with an object.