GMC YUKON 2015 Repair Manual

Black plate (28,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
2-28 Keys, Doors, and Windows
.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
The heated outside rearview mirrors
turn on when the rear window
defogger is on.
1(Rear Window Defogger): This
button is on the climate control
panel. Press to heat the mirror.
See “Rear Window Defogger” under
Dual Automatic Climate Control
System on page 8-1.
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.
Blind Spot Mirrors
If equipped, there is a small convex
mirror built into the upper and outer
corner of the driver outside rearview
mirror. It can show objects that may
be in the vehicle's blind zone.
Driving with the Blind Spot
Mirror
Actual Mirror View

Black plate (29,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Keys, Doors, and Windows 2-29
1. When the approaching vehicle isa long distance away, the image
in the main mirror is small and
near the inboard edge of the
mirror.
2. As the vehicle gets closer, the image in the main mirror gets
larger and moves outboard.
3. As the vehicle enters the blind zone, the image transitions from
the main mirror to the blind spot
mirror.
4. When the vehicle is in the blind zone, the image only appears in
the blind spot mirror.
Using the Outside Mirror with
the Blind Spot Mirror
1. Set the main mirror so that theside of the vehicle can just be
seen and the blind spot mirror
has an unobstructed view.
2. When checking for traffic or before changing a lane, look at
the main driver/passenger side
mirror to observe traffic in the
adjacent lane, behind your vehicle. Check the blind spot
mirror for a vehicle in the blind
zone. Then, glance over your
shoulder to double check before
moving slowly into the
adjacent lane.
Reverse Tilt Mirrors
If equipped, 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 when the ignition is
turned off.
This feature can be programed
through the Driver Information
Center (DIC). See
Vehicle
Personalization on page 5-43 for
more information.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind your
vehicle.
If equipped with OnStar, the vehicle
may have three control buttons at
the bottom of the mirror. See your
dealer for more information about
OnStar and how to subscribe to it.
See OnStar Overview on page 14-1.
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Manual Rearview Mirror
If equipped with a manual rearview
mirror, push the tab forward for
daytime use and pull it for nighttime
use to avoid glare from the
headlamps from behind.

Black plate (30,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
2-30 Keys, Doors, and Windows
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.
Child-View Mirror
If equipped, push up on the
sunglasses bin and release. Push
the bin back in halfway to secure
the mirror in position.
Push the mirror back up when not
in use.
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.

Black plate (31,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Keys, Doors, and Windows 2-31
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 keys in a vehicle with
children. When there are children
in the rear seat, use the window
lockout button to prevent
operation of the windows. See
Keys on page 2-2.The driver door has switches that
control all windows. Each
passenger door switch only controls
that window. The power windows
work when the ignition is in ON/
RUN or ACC/ACCESSORY, or in
Retained Accessory Power (RAP).
SeeRetained Accessory Power
(RAP) on page 9-27.
Press the switch to lower the
window. Pull the switch up to
raise it.
Express-Down Windows
Windows that have the
express-down feature allow the
windows to be lowered without
holding the switch. Press the
window switch fully and release it to
activate the express-down feature.
The express mode can be canceled
at any time by briefly pressing or
pulling the switch.
Express-Up Window
If equipped, the driver window
express-up feature allows the
window to be raised without holding
the switch. Pull the window switch
up fully and release it to activate the
express-up feature. The express-up
feature can be canceled at any time
by briefly pulling the switch.
Programming the Power
Windows
If the battery on the vehicle has
been recharged or disconnected,
or is not working, the driver power

Black plate (32,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
2-32 Keys, Doors, and Windows
window will need to be
reprogrammed for the express-up
feature to work.
To reprogram the power windows:
1. Close all doors.
2. Place the ignition in ACC/ACCESSORY or ON/RUN/
START.
3. From any open position, pull the power window switch up until the
window is fully closed.
4. Hold the switch up for approximately two seconds after
the window is fully closed.
The window is now reprogrammed.
Express Window Anti-Pinch
Feature
If any object is in the path of the
window when express-up is active,
the window stops at the obstacle
and auto-reverses to a preset
factory position. Weather conditions
such as severe icing also cause the
window to auto-reverse. The window returns to normal operation
once the obstacle or condition is
removed.
Express Window Anti-Pinch
Override
{Warning
If express override is activated,
the window will not reverse
automatically. You or others could
be injured and the window could
be damaged. Before you use
express override, make sure that
all people and obstructions are
clear of the window path.
The anti-pinch feature can be
overridden in a supervised mode.
Hold the window switch in the
partially or fully pulled up position.
The window rises for as long as the
switch is held. Once the switch is
released, the express mode is
reactivated. In this mode, the window can still
close on an object in its path. Use
care when using the override mode.
Window Lockout
This feature prevents the rear
passenger windows from operating,
except from the driver position.
.PressZto activate the rear
window locks. An indicator light
will illuminate when the feature
is on.
.PressZagain to deactivate the
rear window locks.

Black plate (33,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Keys, Doors, and Windows 2-33
Sun Visors
Pull the sun visor down to block
glare. If equipped, detach the sun
visor from the center mount to pivot
to the side window or to extend
along the rod.
Roof
Sunroof
1. Open or Close
2. Vent
On vehicles with a sunroof, the
sunroof only operates when the
ignition is in ACC/ACCESSORY or
ON/RUN, or when Retained
Accessory Power (RAP) is active.
SeeRetained Accessory Power
(RAP) on page 9-27. Vent:
From the closed position,
press the rear of switch (2) to vent
the sunroof.
Open/Close: To open the sunroof,
press and hold switch (1) until the
sunroof reaches the desired
position. Press and hold the front of
switch (1) to close it.
Express-Open/Express-Close: To
express-open the sunroof, fully
press and release the rear of
switch (1) until the sunroof reaches
the desired position. To
express-close the sunroof, fully
press and release the front of
switch (1). Press the switch again to
stop it.
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.

Black plate (34,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
2-34 Keys, Doors, and Windows
If an object is in the path of the
sunroof while it is closing, the
anti-pinch feature will detect the
object and stop the sunroof.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose
debris. Wipe the sunroof seal and
roof sealing area using a clean
cloth, mild soap, and water. Do not
remove grease from the sunroof.
If water is seen dripping into the
water drainage system, this is
normal.

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Seats and Restraints 3-1
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats
Center Seat . . . . . . . . . . . . . . . . . . . 3-3
Power Seat Adjustment . . . . . . . 3-3
Lumbar Adjustment . . . . . . . . . . . 3-4
Reclining Seatbacks . . . . . . . . . . 3-4
Memory Seats . . . . . . . . . . . . . . . . 3-5
Heated and Cooled FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Rear Seats
Heated Rear Seats . . . . . . . . . . . 3-9
Second Row Seats . . . . . . . . . . 3-10
Third Row Seats . . . . . . . . . . . . . 3-14
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . 3-18
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . 3-20 Lap-Shoulder Belt . . . . . . . . . . . 3-21
Safety Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . 3-25
Lap Belt . . . . . . . . . . . . . . . . . . . . . 3-26
Safety Belt Extender . . . . . . . . . 3-27
Safety System Check . . . . . . . . 3-27
Safety Belt Care . . . . . . . . . . . . . 3-27
Replacing Safety Belt System Parts after a Crash . . . . . . . . . 3-27
Airbag System
Airbag System . . . . . . . . . . . . . . . 3-28
Where Are the Airbags? . . . . . 3-30
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . 3-32
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . 3-33
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . 3-33
What Will You See after an Airbag Inflates? . . . . . . . . . . . . 3-34
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 3-35
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . 3-40 Adding Equipment to the
Airbag-Equipped Vehicle . . . 3-40
Airbag System Check . . . . . . . . 3-41
Replacing Airbag System Parts after a Crash . . . . . . . . . 3-41
Child Restraints
Older Children . . . . . . . . . . . . . . . 3-42
Infants and Young
Children . . . . . . . . . . . . . . . . . . . . 3-44
Child Restraint Systems . . . . . 3-47
Where to Put the Restraint . . . 3-48
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . 3-50
Replacing LATCH System Parts After a Crash . . . . . . . . . 3-59
Securing Child Restraints (Center Front Seat) . . . . . . . . . 3-59
Securing Child Restraints (Front Passenger Seat) . . . . 3-59
Securing Child Restraints (Rear Seat) . . . . . . . . . . . . . . . . . 3-62

Black plate (2,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
3-2 Seats and Restraints
Head Restraints
Front Seats
The vehicle’s front seats have
adjustable head restraints in the
outboard seating positions.
{Warning
With head restraints that are not
installed and adjusted properly,
there is a greater chance that
occupants will suffer a neck/
spinal injury in a crash. Do not
drive until the head restraints for
all occupants are installed and
adjusted properly.
Adjust the head restraint so that the
top of the restraint is at the same
height as the top of the occupant's
head. This position reduces the
chance of a neck injury in a crash.The height of the head restraint can
be adjusted. Pull the head restraint
up to raise it. Try to move the head
restraint to make sure that it is
locked in place.
To lower the head restraint, press
the button, located on the top of the
seatback, and push the head
restraint down. Try to move the
head restraint after the button is
released to make sure that it is
locked in place.
The front seat outboard head
restraints are not removable.

Black plate (3,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Seats and Restraints 3-3
Second Row Seats
The vehicle's second row seats
have head restraints in the outboard
seating positions that cannot be
adjusted.
The second row seat outboard head
restraints are not removable.
Third Row Seats
The third row seat head restraint
can be lowered for better visibility
when the rear seat is unoccupied.To lower the head restraint, press
the button located on the top of the
seatback and push the head
restraint down.
Return the lowered head restraint to
the upright position until it locks into
place. Push and pull on the head
restraint to make sure it is locked.
If you are installing a child restraint
in the third row seat, see
“Securing
a Child Restraint Designed for the
LATCH System” underLower
Anchors and Tethers for Children
(LATCH System) on page 3-50.
Front Seats
Center Seat
If equipped, the center front
seatback doubles as an armrest and
cupholder/storage area for the driver
and passenger when the center
front seat is not used. Do not use it
as a seating position when the
seatback is folded down.
Power Seat Adjustment
{Warning
You can lose control of the
vehicle if you try to adjust a driver
seat while the vehicle is moving.
Adjust the driver seat only when
the vehicle is not moving.