2018 GMC SIERRA DENALI rear doors

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
54 Keys, Doors, and Windows Automatic Reversal System
Override
{ WarningIf automatic reversal system
override is active, the window will
not reverse automatically. You or
others could be injured and the
window could be damaged.
Before using automatic reversal
system override, make sure that
all people and obstructions are
clear of the window path.
When the engine is on, override the
automatic reversal system by pulling
and holding the window switch if
conditions prevent it from closing. Programming the Power
Windows Programming may be necessary if
the vehicle battery has been
disconnected or discharged. If the
window is unable to express-up,
program each express-close
window:
1. Close all doors.
2. Turn the ignition on or to ACC/
ACCESSORY.
3. Partially open the window to be
programmed. Then close it and
continue to pull the switch
briefly after the window has
fully closed.
4. Open the window and continue
to press the switch briefly after
the window has fully opened. Rear Windows Power Sliding Rear Window
If equipped, the power sliding rear
window works when the ignition has
been turned on or to ACC/
ACCESSORY, or Retained
Accessory Power (RAP) must be
active. See Retained Accessory
Power (RAP) 0 260 .
.
Press the switch to open the
window.
.
Pull the switch to close the
window.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Keys, Doors, and Windows 55The power sliding rear window
cannot be operated manually.
Sun Visors
Pull the sun visor down to block
glare. Detach the sun visor from the
center mount to pivot to the side
window and, if equipped, extend
along the rod. Roof Sunroof
If equipped, the sunroof operates
when the ignition is on or in ACC/
ACCESSORY, or when Retained
Accessory Power (RAP) is active.
See Retained Accessory Power
(RAP) 0 260 .
Slide Switch
Express-Open/Express-Close : To
express-open the sunroof, fully
press and release
I . Press the
switch again to stop the movement. To express-close the sunroof, fully
press and release
K . Press the
switch again to stop the movement.
Open/Close (Manual Mode) : To
open the sunroof, press and
hold
I . Release the switch to stop
the movement. Press and hold
K to close the sunroof. Release the
switch to stop the movement.
Tilt Switch
Vent : From the closed position,
press
J to vent the sunroof. Press
K to close the vent.
When the sunroof is opened, an air
deflector will automatically raise.
The air deflector will retract when
the sunroof is closed.
The sunroof also has a sunshade,
which can be pulled forward to block
sun rays. The sunshade must be
opened and closed manually.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - CRC - 10/17/17
Seats and Restraints 67The feature is active only once each
time the vehicle is turned on and off,
and will require reactivation by
opening and closing the second row
doors. There may be an alert even
when there is nothing in the rear
seat; for example, if a child entered
the vehicle through the rear door
and left the vehicle without the
vehicle being shut off.
The feature can be turned on or off.
See Vehicle Personalization 0 165 .
Folding the Rear Seat
CautionFolding a rear seat with the seat
belts still fastened may cause
damage to the seat or the seat
belts. Always unbuckle the seat
belts and return them to their
normal stowed position before
folding a rear seat. To fold the seat:
1. Pull up on the front of the seat
cushion while pulling down on
the release strap loop under
the seat cushion.
2. Pull the seat cushion up until it
latches with the seatback.
3. Pull forward on the seat
cushion to make sure it is
locked in place. To unfold the seat:
1. Push the seat cushion
rearward while pulling the
release strap loop under the
seat cushion. Pull the seat
cushion down until it latches.
2. Pull up on the seat cushion to
make sure it is locked in place.
Make sure the seat belts are
not twisted or caught in the
seat cushion.
{ WarningA seat belt that is improperly
routed, not properly attached,
or twisted will not provide the
protection needed in a crash. The
person wearing the belt could be
seriously injured. After raising the
rear seatback, always check to be
sure that the seat belts are
properly routed and attached, and
are not twisted.