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Keys, Doors, and Windows 39
open. See“Keyless Access
Operation” inRemote Keyless Entry
(RKE) System Operation 030.
Driver Door Key Lock Cylinder
Access (In Case of Dead
Battery)
To access the driver door key lock
cylinder:
1. Pull the door handle (1) to the open position and hold it open
until cap removal is complete.
2. Insert the key into the slot (3) on the bottom of the cap (2)
and lift the key upward. 3. Move the cap (2) rearward and
remove.
4. Use the key in the cylinder.
To replace the cap: 1. Pull the door handle (1) to the open position and hold it open
until cap installation is
complete.
2. Insert the two tabs (6) at the
back of the cap between the
seal (5) and the metal base (4).
3. Slide the cap forward andpress the forward edge to
install the cap in place.
4. Release the door handle.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
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42 Keys, Doors, and Windows
or by using the Remote
Keyless Entry (RKE)
transmitter.
2. Open the door from the outside.
When the safety lock is enabled,
adults and older children will not be
able to open the rear door from the
inside. Cancel the safety locks to
enable the doors to open from the
inside.
To cancel the safety lock: 1. Unlock the door and open it from the outside.
2. Move the lever up to unlock. Do the same for the other door.Doors
Liftgate
{Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch or
liftgate. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
. Close all of the windows.
. Fully open the air outlets on
or under the instrument
panel.
(Continued)
Warning (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air
and set the fan speed to the
highest setting. See
“Climate Control Systems”
in the Index.
. If the vehicle is equipped
with a power liftgate, disable
the power liftgate function.
See Engine Exhaust 0228.
Caution
To avoid damage to the liftgate or
liftgate glass, make sure the area
above and behind the liftgate is
clear before opening it.

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Keys, Doors, and Windows 43
Manual Liftgate
To unlock the liftgate, pressKon
the power door lock switch or press
Kon the RKE transmitter twice to
unlock all doors. Press the touch
pad on the bottom of the liftgate and
lift up.
Use the pull cup to lower and close
the liftgate. Do not press the touch
pad while closing the liftgate. This
will cause the liftgate to be
unlatched.
If equipped with Keyless Access,
the liftgate can be opened when
locked if the RKE transmitter is within 1 m (3 ft) of the touch pad.
See
Remote Keyless Entry (RKE)
System Operation 030.
The liftgate has an electric latch.
If the battery is disconnected or has
low voltage, the liftgate will not
open. The liftgate will resume
operation when the battery is
reconnected and charged.
Power Liftgate Operation
{Warning
You or others could be injured if
caught in the path of the power
liftgate. Make sure there is no one
in the way of the liftgate as it is
opening and closing.
Caution
Driving with an open and
unsecured liftgate may result in
damage to the power liftgate
components.
If equipped with a power liftgate, the
switch is on the driver door. The
vehicle must be in P (Park).
The modes are:
. MAX: Opens to maximum
height.
. 3/4: Opens to a reduced height
that can be set from 3/4 to fully
open. Use to prevent the liftgate
from opening into overhead
obstructions such as a garage
door or roof-mounted cargo. The
liftgate can be manually opened
all the way.
. OFF: Opens manually only.

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Keys, Doors, and Windows 49
The security light, in the instrument
cluster, comes on if there is a
problem with arming or disarming
the theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in your
vehicle. Only a correctly matched
RKE transmitter will start the
vehicle. If the transmitter is ever
damaged, you may not be able to
start your vehicle.
When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, on, off),
and the RKE transmitter appears to
be undamaged, try another
transmitter. Or, you may try placing
the transmitter in the transmitter
pocket located in the center
console.If the ignition mode will not change
with the other transmitter or in the
transmitter pocket, your vehicle
needs service. If the ignition does
change modes, the first transmitter
may be faulty. See your dealer who
can service the theft-deterrent
system and have a new RKE
transmitter programmed to the
vehicle.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional
transmitters, see
“Programming
Transmitters to the Vehicle” under
Remote Keyless Entry (RKE)
System Operation 030.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.

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Keys, Doors, and Windows 51
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind the vehicle.
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Manual Rearview Mirror
If equipped, push the tab forward for
daytime use and pull it rearward for
nighttime use to avoid glare of the
headlamps from behind.
Automatic Dimming
Rearview Mirror
If equipped, automatic dimming
reduces the glare of headlamps
from behind. The dimming feature
comes on when the vehicle is
started.
Windows
{Warning
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the
sound, open either a front window
or the sunroof, if equipped.
Power Windows
{Warning
Children could be seriously
injured or killed if caught in the
path of a closing window. Never
leave the Remote Keyless Entry
(RKE) transmitter in a vehicle with
children. When there are children
in the rear seat, use the window
lockout switch to prevent
operation of the windows. See
Keys029.

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Keys, Doors, and Windows 53
Warning (Continued)
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.
Remote Window Operation
If equipped, this feature allows all
windows to be opened remotely.
If enabled in vehicle personalization,
press and hold
Kon the Remote
Keyless Entry (RKE) transmitter to
open all windows. See Vehicle
Personalization 0152.
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 ignition must be on
or in ACC/ACCESSORY,
or Retained Accessory Power (RAP)
must be active to operate the
sunroof.
See Ignition Positions 0221 and
Retained Accessory Power (RAP)
0 226.
1. Sunroof Switch (SLIDE)
2. Vent Switch (TILT)

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62 Seats and Restraints
Memory Seats
If equipped, memory seats allow two
drivers to store and recall their
unique seat positions for driving the
vehicle, and a shared exit position
for getting out of the vehicle. Other
feature positions may also be set,
such as power mirrors and power
steering wheel, if equipped. Memory
positions are linked to RKE
transmitter 1 or 2 for automatic
memory recalls.
Before storing, adjust all available
memory feature positions. Turn the
ignition on and then press and
release SET; a beep will sound.Then immediately press and hold 1,
2, or
B(Exit) on the driver door
until two beeps sound. To manually
recall these positions, press and
hold 1, 2, or
Buntil the saved
position is reached.
The vehicle identifies the current
driver ’s RKE transmitter number (1–
8). See Remote Keyless Entry
(RKE) System Operation 030. Only
RKE transmitters 1 and 2 can be
used for automatic memory recalls.
A Driver Information Center (DIC)
welcome message indicating the
transmitter number may display for
the first few ignition cycles following
a transmitter change. For Auto
Memory Recall to work properly,
save the positions to the memory
button (1 or 2) matching the RKE
transmitter number displayed in the
DIC welcome message. Carry the
linked RKE transmitter when
entering the vehicle.
Vehicle Personalization Settings
. To have the Auto Memory Recall
movement begin when the
vehicle is started, select the Settings menu, then Vehicle,
then Comfort and Convenience,
and then Auto Memory Recall.
Select On or Off. See
“Auto
Memory Recall” later in this
section.
. To begin Easy Exit Recall
movement when the ignition is
turned off and the driver door is
opened, or when the ignition is
turned off with the driver door
already opened, select the
Settings menu, then Vehicle,
then Comfort and Convenience,
and then Easy Exit Options.
Select On or Off. See “Easy Exit
Recall” later in this section.
. See Vehicle Personalization
0 152 for additional setting
information.
Identifying Driver Number
To identify the driver number: 1. Start the vehicle with the other key or RKE transmitter. The
DIC should display the driver
number; 1 or 2. Turn the

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Seats and Restraints 63
ignition off and remove the key
or RKE transmitter from the
vehicle.
2. Start the vehicle with the initial key or RKE transmitter. The
DIC should display the other
driver number not shown in
step 1.
Saving Memory Positions
Read these instructions completely
before saving memory positions.
To save preferred driving positions
1 and 2: 1. Turn the ignition on or to ACC/ ACCESSORY.
A DIC welcome message may
be displayed indicating number
1 or 2 for memory recalls.
2. Adjust all available memory features to the desired driving
position.
3. Press and release SET; a beep will sound. 4. Immediately press and hold the
1 or 2 memory button matching
the above DIC welcome
message until two beeps
sound.
If too much time passes
between releasing SET and
pressing 1, the memory
position will not be saved and
two beeps will not sound.
Repeat Steps 3 and 4.
1 or 2 corresponds to the driver
number. See “Identifying Driver
Number” in this section.
5. Repeat Steps 1–4 for a second driver using 1 or 2.
To save the position for
Band
easy exit features, repeat Steps 1–4
using
B. This stores the position
for getting out of the vehicle.
Save preferred memory feature
positions to both 1 and 2 if you are
the only driver. Manually Recalling Memory
Positions
Press and hold 1, 2, or
Bto recall
the previously stored memory
positions.
To stop manual recall movement,
release 1, 2, or
B. Recall can also
be stopped by pressing a power
seat, SET, power mirror, or power
steering wheel control, if memory
equipped. The driver or passenger
side mirror must be selected.
Auto Memory Recall
The vehicle identifies the number of
the current driver ’s RKE transmitter
(1–8). See Remote Keyless Entry
(RKE) System Operation 030. If the
RKE transmitter is 1 or 2, and Auto
Memory Recall is programmed on in
vehicle personalization, the
positions saved to the same
memory button number 1 or 2 are
automatically recalled when the
ignition is turned on, or turned from
off to ACC/ACCESSORY. RKE
transmitters 3–8 will not provide
automatic memory recalls.