GMC 2015 Sierra Denali Owner's Manual page 13

1-6 In Brief
Power Door Locks
Crew/Double Cab Premium Trim
Shown, Other Models Similar
: Press to lock the doors.
: Press to unlock the doors.
See Door Locks on page 2-8 and
Power Door Locks on page 2-9.
Windows
Power Windows
Crew/Double Cab Premium Trim
Shown, Other Models Similar
The driver door has a switch to
control all windows. Each
passenger door has a switch to
control that window. The power
windows work when the ignition is in
ON/RUN or ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained
Accessory Power (RAP) on
page 9-29.
Press the switch to lower the
window. Pull the switch up to raise
it. See Windows on page 2-19 and
Power Windows on page 2-19.
Express Windows
The express window feature allows
the windows to be raised and
lowered without holding the switch.
To activate express-down, press the
switch down fully and release.
The driver window has an
express-up feature. Pull the switch
up fully and release to activate.