service GMC YUKON XL 2011 User Guide

Black plate (13,1)GMC Yukon/Yukon XL Owner Manual - 2011
Keys, Doors and Windows 2-13
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 you must manually open or
close the liftgate. The REAR
ACCESS OPEN warning message
in the Driver Information Center
(DIC) will indicate that the liftgate
is open. After removing the
obstructions, manually open the
liftgate to the full open position or
close the liftgate to the fully closed
and latched position. The liftgate
will now resume normal power
operation.Pinch sensors are located on the
sides of the liftgate. If an object is
caught between the liftgate and
the body and presses against this
sensor, the liftgate will reverse
direction and open fully. The liftgate
will remain open until it is activated
again or closed manually. Do not
force the liftgate open or closed
during a power cycle.
Manual Operation of Power
Liftgate
To change the liftgate to manual
operation, press the switch on the
overhead console to the OFF
position.
With the power liftgate disabled
and all of the doors unlocked, the
liftgate can be manually opened and
closed.
To open the liftgate, press the
touchpad on the handle on the
outside of the liftgate, and lift the
gate open. To close the liftgate, use
the pull cup to lower the liftgate andclose. The liftgate latch will power
close. Always close the liftgate
before driving.
If the RKE button or the power close
button on the liftgate is pressed
while power operation is disabled,
the lamps will flash three times, but
the liftgate will not move.
It is not recommended that you
drive with the liftgate open,
however, if you must drive with the
liftgate open, the liftgate should be
set to manual operation by pressing
the OFF switch on the center
console.
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.
If the battery is properly connected
with adequate voltage, the switch is
not disabled, and the liftgate still will
not function, your vehicle should be
taken to a dealer for service.

Black plate (15,1)GMC Yukon/Yukon XL Owner Manual - 2011
Keys, Doors and Windows 2-15
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 10‑40.
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 13‑16 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-210/220/310.

Black plate (16,1)GMC Yukon/Yukon XL Owner Manual - 2011
2-16 Keys, Doors and Windows
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 10‑40. 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
1stamped 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 (17,1)GMC Yukon/Yukon XL Owner Manual - 2011
Keys, Doors and Windows 2-17
4. Insert the new key to beprogrammed and turn it to
the ON/RUN position within
five seconds of turning the
ignition to the LOCK/OFF
position in Step 3.
The security light will turn
off once the key has been
programmed.
5. Repeat Steps 1 through 4 if additional keys are to be
programmed.
If you lose or damage your
PASS-Key III+ key, see your dealer
or a locksmith who can service
PASS-Key III+ to have a new
key made.
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.
Manual Mirrors
Adjust the outside mirrors for a
clearer view.
Using hood-mounted air deflectors
and add-on convex mirror
attachments could decrease mirror
performance.
Trailer-Tow Mirrors
If the vehicle has towing mirrors,
they can be adjusted for a clearer
view of the objects behind you.
Manually pull out the mirror head to
extend it for better visibility when
towing a trailer.

Black plate (21,1)GMC Yukon/Yukon XL Owner Manual - 2011
Keys, Doors and Windows 2-21
The vehicle may also have a Rear
Vision Camera (RVC). SeeRear
Vision Camera (RVC) on page 9‑63
for more information.
If the vehicle has RVC, the
Obutton
for turning the dimming feature on or
off will not be available.
Vehicles with OnStar have three
additional control buttons for the
OnStar system. See your dealer
for more information about OnStar
and how to subscribe to it. See the
OnStar Owner Guide for more
information about the services
OnStar provides.
Cleaning the Mirror
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Windows
{WARNING
Leaving children, helpless
adults, or pets in a vehicle
with the windows closed is
dangerous. They can be
overcome by the extreme heat
and suffer permanent injuries
or even death from heat stroke.
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
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).

Black plate (5,1)GMC Yukon/Yukon XL Owner Manual - 2011
Seats and Restraints 3-5
Storing Memory Positions
To save into memory:
1. Adjust the driver seat, seatbackrecliner, both outside mirrors,
and the throttle and brake
pedals, if available.
See Power Mirrors on page 2‑18
and Adjustable Throttle and
Brake Pedal on page 9‑28 for
more information.
Not all mirrors and adjustable
throttles and brake pedals will
have the ability to save and
recall their positions.
2. Press and hold “1”until
two beeps sound.
3. Repeat for a second driver position using “2.” To recall, press and release
“1”
or “2.” The vehicle must be in
P (Park). A single beep will sound.
The seat, outside mirrors, and
adjustable throttle and brake pedals
will move to the position previously
stored for the identified driver.
Memory Remote Recall
The memory feature can recall the
driver seat, outside mirrors, and
pedals, if available, to stored
positions when entering the vehicle.
To activate, unlock the driver
door with the Remote Keyless
Entry (RKE) transmitter. The driver
seat, outside mirrors, and adjustable
pedals, if available, will move to the
memory position associated with
the transmitter used to unlock the
vehicle. This feature can be turned on or off
using the vehicle personalization
menu. See
“Memory Seat Recall”
under Vehicle Personalization (With
DIC Buttons) on page 5‑47 for more
information.
To stop recall movement, press one
of the power seat controls, memory
buttons, or power mirror buttons,
or the adjustable pedal switch.
If something has blocked the driver
seat and/or the adjustable pedals
while recalling a memory position,
the recall may stop. Remove the
obstruction; then press and hold the
appropriate manual control for the
memory item that is not recalling
for two seconds. Try recalling the
memory position again by pressing
the appropriate memory button.
If the memory position is still not
recalling, see the dealer for service.

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual - 2011
3-6 Seats and Restraints
Easy Exit Driver Seat
This feature can move the seat
rearward to allow extra room to exit
the vehicle.
B(Easy Exit Driver Seat):Press
to recall the easy exit seat position.
The vehicle must be in P (Park).
If the easy exit seat feature is
programmed on in the vehicle
personalization menu, automatic
seat movement occurs when the
ignition key is removed.
A single beep sounds. The driver
seat moves back approximately
8 cm (3 in). To move the seat back
farther, press the easy exit seat
button again until the seat is all the
way back.
If something has blocked the driver
seat while recalling the exit position,
the recall may stop. Remove the
obstruction; then press and hold
the power seat control rearward for
two seconds. Try recalling the exit position again. If the exit position is
still not recalling, see the dealer for
service.
See
“Easy Exit Recall” and
“Easy Exit Setup” underVehicle
Personalization (With DIC Buttons)
on page 5‑47 for more information.
Lumbar Adjustment
Manual Lumbar
If equipped, increase or decrease
manual lumbar support by turning
the knob forward or rearward.
Power Lumbar
To adjust the power lumbar support,
if equipped:
.On vehicles with two-way
lumbar, press and hold the
top or bottom of the control to
increase or decrease lumbar
support.
.On vehicles with four-way
lumbar, press and hold the front
or rear of the control to increase
or decrease lumbar support.

Black plate (46,1)GMC Yukon/Yukon XL Owner Manual - 2011
3-46 Seats and Restraints
There may be some smoke and
dust coming from the vents in the
deflated airbags. Airbag inflation
does not prevent the driver from
seeing out of the windshield or
being able to steer the vehicle, nor
does it prevent people from leaving
the vehicle.
{WARNING
When an airbag inflates, there
may be dust in the air. This dust
could cause breathing problems
for people with a history of
asthma or other breathing trouble.
To avoid this, everyone in the
vehicle should get out as soon
as it is safe to do so. If you have
breathing problems but cannot
get out of the vehicle after an
airbag inflates, then get fresh air
by opening a window or a door.
If you experience breathing
problems following an airbag
deployment, you should seek
medical attention.The vehicle may have a feature
that may automatically unlock the
doors, turn on the interior lamps and
hazard warning flashers, and shut
off the fuel system after the airbags
inflate. You can lock the doors, turn
off the interior lamps and hazard
warning flashers by using the
controls for those features.{WARNING
A crash severe enough to
inflate the airbags may have also
damaged important functions
in the vehicle, such as the fuel
system, brake and steering
systems, etc. Even if the vehicle
appears to be drivable after a
moderate crash, there may be
concealed damage that could
make it difficult to safely operate
the vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation.
Additional windshield breakage
may also occur from the right front
passenger airbag.
.Airbags are designed to inflate
only once. After an airbag
inflates, you will need some
new parts for the airbag system.
If you do not get them, the
airbag system will not be there
to help protect you in another
crash. A new system will include
airbag modules and possibly
other parts. The service manual
for your vehicle covers the need
to replace other parts.
.The vehicle has a crash sensing
and diagnostic module which
records information after a
crash. See
Vehicle Data
Recording and Privacy on
page 13‑14 andEvent Data
Recorders on page 13‑15.

Black plate (47,1)GMC Yukon/Yukon XL Owner Manual - 2011
Seats and Restraints 3-47
.Let only qualified technicians
work on the airbag systems.
Improper service can mean that
an airbag system will not work
properly. See your dealer for
service.
Passenger Sensing
System
If the vehicle has the passenger
airbag status indicator pictured in
the following illustration, then the
vehicle has a passenger sensing
system for the right front passenger
position. The passenger airbag
status indicator, if equipped, is
visible on the overhead console
when the vehicle is started.
In addition, if the vehicle has a
passenger sensing system for the
right front passenger position, the
label on the vehicle's sun visors
refers to“ADVANCED AIRBAGS”.
United States
Canada
The words ON and OFF, or the
symbols for on and off, will be
visible during the system check.
If you are using remote start,
if equipped, to start the vehicle
from a distance, you may not see
the system check. When the system
check is complete, either the word
ON or OFF, or the symbol for on or
off, will be visible. See Passenger
Airbag Status Indicator on
page 5‑19. The passenger sensing system
will turn off the right front
passenger frontal airbag under
certain conditions. The driver
airbag, seat‐mounted side impact
airbags (if equipped) and the
roof-rail airbags are not affected
by the passenger sensing system.
The passenger sensing system
works with sensors that are part
of the right front passenger seat
and safety belt. The sensors are
designed to detect the presence
of a properly-seated occupant
and determine if the right front
passenger frontal airbag should be
enabled (may inflate) or not.
According to accident statistics,
children are safer when properly
secured in a rear seat in the correct
child restraint for their weight
and size.

Black plate (49,1)GMC Yukon/Yukon XL Owner Manual - 2011
Seats and Restraints 3-49
The passenger sensing system is
designed to turn on (may inflate)
the right front passenger frontal
airbag anytime the system senses
that a person of adult size is
sitting properly in the right front
passenger seat.
When the passenger sensing
system has allowed the airbag to be
enabled, the on indicator will light
and stay lit as a reminder that the
airbag is active.
For some children, including
children in child restraints, and for
very small adults, the passenger
sensing system may or may not
turn off the right front passenger
frontal airbag, depending upon
the person's seating posture
and body build. Everyone in the
vehicle who has outgrown child
restraints should wear a safety belt
properly—whether or not there is
an airbag for that person.{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light on page 5‑18 for more
information, including important
safety information.
If the On Indicator is Lit for a
Child Restraint
If a child restraint has been installed
and the on indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such as blankets,
cushions, seat covers, seat
heaters, or seat massagers. 4. Reinstall the child restraint
following the directions
provided by the child restraint
manufacturer and refer to
Securing Child Restraints (Rear
Seat Position) on page 3‑69
orSecuring Child Restraints
(Center Front Seat Position) on
page 3‑72 orSecuring Child
Restraints (Right Front Seat
Position) on page 3‑73.
5. If, after reinstalling the child restraint and restarting the
vehicle, the on indicator is still
lit, turn the vehicle off. Then
slightly recline the vehicle
seatback and adjust the seat
cushion, if adjustable, to make
sure that the vehicle seatback is
not pushing the child restraint
into the seat cushion.
Also make sure the child
restraint is not trapped under
the vehicle head restraint. If
this happens, adjust the head
restraint. See Head Restraints
on page 3‑2.