2013 GMC YUKON page 9

Black plate (8,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
2-8 Keys, Doors, and Windows
Power Door Locks
PressQorKon the Remote
Keyless Entry (RKE) transmitter.
See Remote Keyless Entry (RKE)
System Operation on page 2‑3.
Power Folding Mirrors Shown,
Other Models Similar
Q(Lock): Press to lock the doors.
K(Unlock): Press to unlock the
doors.
Delayed Locking
When locking the doors with the
power lock switch and a door or the
liftgate is open, the doors will lock
five seconds after the last door is
closed. You will hear three chimes
to signal that the delayed locking
feature is in use.
Pressing the power lock switch
twice will override the delayed
locking feature and immediately lock
all the doors.
This feature will not operate if the
key is in the ignition.
This feature can be programmed
using the Driver Information
Center (DIC). See “Delay Door
Lock” under Vehicle Personalization
(With DIC Buttons) on page 5‑45.
Automatic Door Locks
The vehicle may have an automatic
lock/unlock feature. This feature can
be programmed using the Driver
Information Center (DIC). See
Vehicle Personalization (With DIC
Buttons) on page 5‑45.
Lockout Protection
If the driver side power door lock
switch is pressed when the driver
door is open and the key is in the
ignition, all of the doors will lock and
then the driver door will unlock.
If the passenger side power door
lock switch is pressed when the
front passenger door is open and
the key is in the ignition, all of the
doors will lock and then the front
passenger door will unlock.

Black plate (10,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
2-10 Keys, Doors, and Windows
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 on
page 9‑28.
Notice: If you open the liftgate
without checking for overhead
obstructions such as a garage
door, you could damage the
liftgate or the liftgate glass.
Always check to make sure the
area above and behind the liftgate
is clear before opening it.
A. License Plate Applique
B. Liftgate Handle
The liftglass or liftgate cannot be
opened if the rear wiper is in motion.
Attempting to open the liftglass or
liftgate while the rear wiper is in
motion will cause the release of the
liftglass or liftgate to delay until the
wipers are parked off the liftglass.
Manual Liftgate Operation
To unlock the liftgate, pressKon
the power door lock switch or press
Kon the Remote Keyless Entry
(RKE) transmitter twice. See
Remote Keyless Entry (RKE)
System Operation on page 2‑3.
Press the touch pad on the
underside of the liftgate handle (B)
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.
Power Liftgate Operation
On vehicles with a power liftgate,
the switch is on the overhead
console.
The vehicle must be in P (Park) to
use the power feature. The taillamps
will flash and a chime will sound
when the power liftgate moves.

Black plate (11,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
Keys, Doors, and Windows 2-11
{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.
There are several ways to open and
close the power liftgate:
.Press and hold8on the RKE
transmitter until the liftgate starts
moving.
.Press8on the overhead
console.
.Presslon the bottom of the
liftgate next to the latch to close.
Pressing a second time while the
liftgate is moving reverses the
direction. To disable the power liftgate
function, press OFF on the liftgate
switch.
The power liftgate may be
temporarily disabled under extreme
temperatures, or under low battery
conditions. If this occurs, the liftgate
can still be operated manually.
If the transmission is shifted out of P
(Park) while the power function is in
progress, the liftgate power function
will continue to completion. If the
transmission is shifted out of P
(Park) and the vehicle accelerates
before the power liftgate latches
closed, the liftgate may reverse to
the open position. Cargo could fall
out of the vehicle. Always make
sure the power liftgate is closed and
latched before driving away.
If the liftgate is opened using power
operation and the liftgate support
struts have lost pressure, the turn
signals flash and a chime will
sound. The liftgate stays opentemporarily, and then slowly closes.
See a dealer for service before
using the liftgate.
Obstacle Detection Features
If the liftgate encounters an obstacle
during a power open or close cycle,
a warning chime will sound and the
liftgate will automatically reverse
direction to the full closed or open
position. After removing the
obstruction, the power liftgate
operation can be used again. If the
liftgate encounters multiple
obstacles on the same power cycle,
the power function will deactivate
and a message will display in the
Driver Information Center (DIC).
See
Object Detection System
Messages on page 5‑39. After
removing the obstructions, the
liftgate will resume normal power
operation.

Black plate (13,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
Keys, Doors, and Windows 2-13
The power assist steps
automatically extend from beneath
the vehicle on the side in which the
door has been opened. Once the
door is closed, the assist steps
automatically move back under the
vehicle after a brief delay. The
vehicle must not be moving for the
assist steps to extend or retract.
The assist steps cannot be disabled
in the extended position.Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
Your vehicle has a content
theft-deterrent alarm system.
This is the security light.
To arm the theft-deterrent system:
1. Open the door.2. Lock the door with the Remote
Keyless Entry (RKE) transmitter
or the power door lock switch.
The security light will come on to
inform the driver the system is
arming. If a door is open when
the doors are locked, the
security light will flash.
If the delayed locking feature is
turned on, the theft-deterrent
system will not start the arming
process until the last door is
closed and the delay timer has
expired. See Delayed Locking
on page 2‑8.
3. Close all doors. The security light should go off after about
30 seconds. The alarm is not
armed until the security light
goes off.
If a locked driver door is opened
without using the RKE transmitter, a
10-second pre-alarm will occur. The
horn will chirp and the lights will
flash. If the key is not placed in the
ignition and turned to START or the
door is not unlocked by pressing the

Black plate (14,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
2-14 Keys, Doors, and Windows
unlock button on the RKE
transmitter during the 10-second
pre-alarm, the alarm will go off. Your
vehicle's headlamps will flash and
the horn will sound for about
30 seconds, then will turn off to save
the battery power.
The theft-deterrent system will not
activate if the doors are locked with
the vehicle's key or the manual door
lock. It activates only if you use the
power door lock switch with the door
open or the RKE transmitter. You
should also remember that you can
start your vehicle with the correct
ignition key if the alarm has been
set off.
To avoid setting off the alarm by
accident:
.If you do not want to activate the
theft-deterrent system, the
vehicle should be locked with
the door key after the doors are
closed.
.Always unlock the doors with the
RKE transmitter. Unlocking a
door any other way will set off
the alarm if it is armed.
If you set off the alarm by accident,
press unlock on the RKE transmitter
or place the key in the ignition and
turn it to START to turn off the
alarm. The alarm will not stop if you
try to unlock a door any other way.
Testing the Alarm
To test the alarm:
1. From inside the vehicle, lower the driver window and open the
driver door.
2. Activate the system by locking the doors with the power door
lock switch while the door is
open, or with the RKE
transmitter.
3. Get out of the vehicle, close the door and wait for the security
light to go out. 4. Then reach in through the
window, unlock the door with the
manual door lock and open the
door. This should set off the
alarm.
While the alarm is set, the power
door unlock switch will not work.
If the alarm does not sound when it
should but the headlamps flash,
check to see if the horn works. The
horn fuse may be blown. To replace
the fuse, see Fuses and Circuit
Breakers on page 10‑34.
If the alarm does not sound or the
headlamps do not flash, the vehicle
should be serviced by your dealer.
Immobilizer
See Radio Frequency Statement on
page 13‑21 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.

Black plate (15,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
Keys, Doors, and Windows 2-15
Immobilizer Operation
This vehicle has PASS-Key®III+
(Personalized Automotive Security
System) theft-deterrent system.
PASS-Key III+ is a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned to
ON/RUN, ACC/ACCESSORY,
or START from the LOCK/OFF
position.
You do not have to manually arm or
disarm the system.
The security light will come on if
there is a problem with arming or
disarming the theft-deterrent
system.
When the PASS-Key III+ system
senses that someone is using the
wrong key, it prevents the vehicle
from starting. Anyone using a
trial-and-error method to start the vehicle will be discouraged because
of the high number of electrical key
codes.
If the engine does not start and the
security light on the instrument
panel cluster comes on when trying
to start the vehicle, there may be a
problem with the theft-deterrent
system. Turn the ignition off and try
again.
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key. At this time,
you may also want to check the
fuse. See
Fuses and Circuit
Breakers on page 10‑34. If the
engine still does not start with the
other key, the vehicle needs service.
If the vehicle does start, the first key
may be faulty. See your dealer who
can service the PASS-Key III+ to
have a new key made.
It is possible for the PASS-Key III+
decoder to learn the transponder
value of a new or replacement key.
Up to 10 keys may be programmed
for the vehicle. The following procedure is for programming
additional keys only. If all the
currently programmed keys are lost
or do not operate, you must see
your dealer or a locksmith who can
service PASS-Key III+ to have keys
made and programmed to the
system.
See your dealer or a locksmith who
can service PASS-Key III+ to get a
new key blank cut exactly as the
ignition key that operates the
system.
To program the new additional key:
1. Verify that the new key has a
1
stamped on it.
2. Insert the original, already programmed key in the ignition
and start the engine. If the
engine will not start, see your
dealer for service.
3. After the engine has started, turn the key to LOCK/OFF, and
remove the key.

Black plate (18,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
2-18 Keys, Doors, and Windows
Keep the selector switch in the
center position when not adjusting
either outside mirror.
Exterior Automatic Dimming
Mirror
If the vehicle has the exterior
automatic dimming mirror, the driver
outside mirror automatically adjusts
for the glare of headlamps behind.
This feature is controlled by the on
and off setting on the inside
automatic dimming rearview mirror.
SeeAutomatic Dimming Rearview
Mirror on page 2‑20.
Side Blind Zone Alert (SBZA)
If the vehicle has the Side Blind
Zone Alert (SBZA) system. See Side
Blind Zone Alert (SBZA) on
page 9‑51.
Turn Signal Indicator
The vehicle may also have a turn
signal indicator on the mirror. An
arrow on the mirror flashes in the
direction of the turn or lane change.
Folding Mirrors
Power Folding
1. Press (A) to fold the mirrors out to the driving position.
2. Press (B) to fold the mirrors in to the folded position.
Resetting the Power Folding
Mirrors
Reset the power folding mirrors if:
.The mirrors are accidentally
obstructed while folding.
.They are accidentally manually
folded/unfolded.
.The mirrors will not stay in the
unfolded position.
.The mirrors vibrate at normal
driving speeds.
Fold and unfold the mirrors one time
using the mirror controls to reset
them to their normal position.
A popping noise may be heard
during the resetting of the power
folding mirrors. This sound is normal
after a manual folding operation.
Manual Folding
Fold the mirrors inward to prevent
damage when going through an
automatic car wash. To fold, pull the
mirror toward the vehicle. Push the
mirror outward, to return to its
original position.
Heated Mirrors
For vehicles with heated mirrors:
1(Rear Window Defogger):
Press to heat the mirrors.

Black plate (19,1)GMC Yukon/Yukon XL Owner Manual - 2013 - CRC 2nd edition - 8/15/12
Keys, Doors, and Windows 2-19
See“Rear Window Defogger” under
Dual Automatic Climate Control
System on page 8‑4 orClimate
Control Systems on page 8‑1 for
more information.
Automatic Dimming
Mirror
If the vehicle has the automatic
dimming mirror, the driver outside
mirror automatically adjusts for the
glare of the headlamps from behind.
This feature is controlled by the on
and off setting on the inside
rearview mirror. See Automatic
Dimming Rearview Mirror on
page 2‑20.
Park Tilt Mirrors
If the vehicle has the memory
package, the exterior mirrors tilt to a
preselected position when the
vehicle is in R (Reverse). This
feature lets the driver view the curb
when parallel parking. The mirrors
return to the original position when
the vehicle is shifted out of
R (Reverse), or the ignition is turned
off or to OFF/LOCK.
This feature can be programed
through the Driver Information
Center (DIC). See Vehicle
Personalization (With DIC Buttons)
on page 5‑45 for more information.
Interior Mirrors
Manual Rearview Mirror
To adjust the inside rearview mirror,
hold the rearview mirror in the
center and move it to view the area
behind the vehicle.
For vehicles with a manual rearview
mirror, push the tab forward for
daytime use and pull it rearward for
nighttime use to avoid glare from
the headlamps from behind.
Vehicles with OnStar
®have three
control buttons at the bottom of the
mirror. See a dealer for more
information about OnStar and how
to subscribe to it. See OnStar
Overview on page 14‑1.