automatic transmission GMC YUKON XL 2015 Owners Manual

Black plate (1,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
2015 GMC Yukon/Yukon XL Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-18
Performance and Maintenance . . . . . . . . . . . . . . . . 1-23
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Vehicle Security . . . . . . . . . . . . . . 2-24
Exterior Mirrors . . . . . . . . . . . . . . . 2-28
Interior Mirrors . . . . . . . . . . . . . . . . 2-31
Windows . . . . . . . . . . . . . . . . . . . . . 2-32
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Safety Belts . . . . . . . . . . . . . . . . . . 3-18
Airbag System . . . . . . . . . . . . . . . . 3-28
Child Restraints . . . . . . . . . . . . . . 3-42 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-3
Roof Rack System . . . . . . . . . . . . . 4-4
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . 5-10
Information Displays . . . . . . . . . . 5-28
Vehicle Messages . . . . . . . . . . . . 5-31
Vehicle Personalization . . . . . . . 5-44
Universal Remote System . . . . 5-52
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-6
Lighting Features . . . . . . . . . . . . . . 6-7
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance . . . . . . . . . . . . . . . . . . . 8-7
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-19
Engine Exhaust . . . . . . . . . . . . . . 9-30
Automatic Transmission . . . . . . 9-31
Drive Systems . . . . . . . . . . . . . . . . 9-37
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-41
Ride Control Systems . . . . . . . . 9-44
Cruise Control . . . . . . . . . . . . . . . . 9-47
Driver Assistance Systems . . . 9-57
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-69
Trailer Towing . . . . . . . . . . . . . . . . 9-74
Conversions and Add-Ons . . . 9-89
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-3
Headlamp Aiming . . . . . . . . . . . 10-29
Bulb Replacement . . . . . . . . . . 10-30
Electrical System . . . . . . . . . . . . 10-33
Wheels and Tires . . . . . . . . . . . 10-44

Black plate (3,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
In Brief 1-3
1.Air Vents on page 8-6.
2.
gTraction Control/Electronic
Stability Control on page 9-44.
jPower Assist Steps on
page 2-23 (If Equipped).
XParking Assist Button (If
Equipped). See Assistance
Systems for Parking or Backing
on page 9-58.
@Lane Departure Warning
(LDW) on page 9-68 (If
Equipped).
0Pedal Adjust Switch (If
Equipped). See Adjustable
Throttle and Brake Pedal on
page 9-20.
3. Turn Signal Lever. See Turn and
Lane-Change Signals on
page 6-4.
Windshield Wiper/Washer on
page 5-3. 4. Favorite Switches (Out of View).
See Steering Wheel Controls on
page 5-3.
Volume Switches (Out of View).
See Steering Wheel Controls on
page 5-3.
5. Instrument Cluster on page 5-11.
6. Hazard Warning Flashers on
page 6-4.
7. Shift Lever. See Automatic
Transmission on page 9-31.
Tow/Haul Selector Button. See
Tow/Haul Mode on page 9-36.
Range Selection Mode (If
Equipped). See Manual Mode on
page 9-34.
8. Light Sensor. See Automatic
Headlamp System on page 6-3.
9. Infotainment on page 7-1.
10. Instrument Panel Illumination
Control on page 6-6. 11.
Exterior Lamp Controls on
page 6-1.
Fog Lamps on page 6-5 (If
Equipped).
12. Parking Brake on page 9-42.
13. Four-Wheel Drive on page 9-37
(If Equipped).
14. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp on page 5-20.
15. Trailer Brake Control Panel (If Equipped). See Towing
Equipment on page 9-82.
16. Cruise Control on page 9-47.
Adaptive Cruise Control on
page 9-50 (If Equipped).
Forward Collision Alert (FCA)
System on page 9-61 (If
Equipped).
Heated Steering Wheel on
page 5-3 (If Equipped).
17. Hood Release. See Hood on
page 10-4.

Black plate (16,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
1-16 In Brief
Climate Controls
This system controls the heating,
cooling, and ventilation.
1. Driver Temperature Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Controls
4. Fan Control
5. Defrost
6. Passenger Temperature Control
7. AUTO (Automatic Operation)
8. Air Recirculation9. Rear Climate Control Power
Button
10. Rear AUTO (Automatic Operation)
11. Front Climate Control Power Button
12. Rear Fan Control
13. Rear Air Delivery Mode Control
14. Rear Temperature Control
15. RCTRL (Rear Climate Control Lockout)
16. Rear Window Defogger
17. SYNC (Synchronized Temperature)
See Dual Automatic Climate Control
System on page 8-1 andRear
Climate Control System on page 8-5
(if equipped).
Transmission
Range Selection Mode
The Range Selection Mode switch,
if equipped, is on the shift lever.
1. To enable the Range Selection
feature, move the shift lever to
the M (Manual) position. The
current range will appear next to
the M. This is the highest
attainable range with all lower
gears accessible. As an
example, when 5 (Fifth) gear is
selected, 1 (First) through
5 (Fifth) gears are available.
2. Press the plus/minus buttons on the shift lever to select the
desired range of gears for
current driving conditions. See
Manual Mode on page 9-34.

Black plate (13,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
Seats and Restraints 3-13
Warning (Continued)
when the vehicle is in motion.
People in the vehicle could be
injured in a sudden stop or crash.
Be sure to return the seat to the
passenger seating position before
driving the vehicle. Push and pull
on the seat to make sure it is
locked into place.
{Warning
Automatically folding and
tumbling the seat when someone
is sitting in the seat, could cause
injury to the person sitting there.
Always make sure there is no one
sitting in the seat before pressing
the automatic seat release button.
{Caution
Folding a rear seat with the safety
belts still fastened may cause
damage to the seat or the safety
belts. Always unbuckle the safety
belts and return them to their
normal stowed position before
folding a rear seat.
The transmission must be in
P (Park) for this feature to work.
Fold the seat to load cargo. Fold
and tumble the seat to gain entry to
the third row.
Folding and Tumbling the Seat
To fold and tumble the seat:
1. Make sure that there is nothing under, in front of, or on the seat.
Driver Side Rear Panel Button
Shown
2. Press the automatic seat release button on the panel behind the
rear doors. The seatback
automatically folds flat.
3. Press the button again to release the rear of the seat from
the floor. The seat will tumble
forward.

Black plate (15,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
Seats and Restraints 3-15
Caution (Continued)
belts and return them to their
normal stowed position before
folding a rear seat.
On third row seats (if equipped), the
seatbacks can be folded to increase
cargo space.
Manual Operation
To fold the seatback (if equipped):
1. Open the liftgate.
2. Make sure that there is nothing under, in front of, or on the seat.
3. Fully lower the head restraints. See Head Restraints on
page 3-2. Put the second row
seatbacks in the upright position.
See Second Row Seats on
page 3-10.
4. Disconnect the rear safety belt
mini-latch, using a key in the slot
on the mini-buckle, and let the
belt retract into the headliner.
Stow the mini-latch in the holder
in the headliner.5. Pull up on the lever on the backof the seat to release the
seatback.
6. Push the seatback forward to lay flat.
7. Repeat the steps for the other seatback, if desired.
Automatic Operation
The transmission must be in
P (Park) for this feature to work.

Black plate (5,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
Instruments and Controls 5-5
With Rainsense, if the transmission
is in N (Neutral) and the vehicle
speed is very slow, the wipers will
automatically stop at the base of the
windshield.
The wiper operations return to
normal when the transmission is no
longer in N (Neutral) or the vehicle
speed has increased.
Windshield Washer
{Warning
In freezing weather, do not use
the washer until the windshield is
warmed. Otherwise the washer
fluid can form ice on the
windshield, blocking your vision.
Lm(Washer Fluid): Push the
paddle marked with the windshield
washer symbol at the top of the turn
signal lever to spray washer fluid
and activate the wipers. The wipers
will continue until the paddle is
released or the maximum wash time
is reached. When the paddle is released, additional wipes may
occur depending on how long the
windshield washer had been
activated. See
Washer Fluid on
page 10-20 for information on filling
the windshield washer fluid
reservoir.
Rear Window Wiper/
Washer
The rear wiper control is on the turn
signal lever.
To turn the rear wiper on, slide the
lever to a wiper position.
OFF: Turns the wiper off.
INT (Intermittent Wipes): Turns on
the rear wiper with a delay between
wipes. ON (Rear Wipes):
Turns on the
rear wiper.
=REAR (Rear Wiper Wash):
Press this button on the end of the
lever to spray washer fluid on the
rear window. The wipers will clear
the rear window and either stop or
return to your preset speed. For
more washer cycles, press and hold
the button.
The rear window wiper/washer will
not operate if the liftgate or liftglass
is open or ajar. If the liftgate or
liftglass is opened while the rear
wiper is on, the wiper returns to the
parked position and stops.
Rear Wiper Arm Assembly
Protection
When using an automatic car wash,
move the rear wiper control to OFF
to disable the rear wiper. In some
vehicles, if the transmission is in
N (Neutral) and the vehicle speed is
very slow, the rear wiper will
automatically stop at the base of the
rear window.

Black plate (6,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
5-6 Instruments and Controls
The wiper operations return to
normal when the transmission is no
longer in N (Neutral) or the vehicle
speed has increased.
Reverse Gear Wipes
If the rear wiper control is off, the
rear wiper will automatically operate
continuously when the shift lever is
in R (Reverse), and the front
windshield wiper is performing low
or high speed wipes. If the rear
wiper control is off, the shift lever is
in R (Reverse), and the front
windshield wiper is performing
interval wipes, then the rear wiper
automatically performs interval
wipes.
This feature can be changed. See
Vehicle Personalization on
page 5-44.
The windshield washer reservoir is
used for the windshield and the rear
window. Check the fluid level in the
reservoir if either washer is not
working. SeeWasher Fluid on
page 10-20.Compass
The vehicle may have a compass
display on the Driver Information
Center (DIC). The compass receives
its heading and other information
from the Global Positioning
System (GPS) antenna,
StabiliTrak
®, and vehicle speed
information.
The compass system is designed to
operate for a certain number of
miles or degrees of turn before
needing a signal from the GPS
satellites. When the compass
display shows CAL, drive the
vehicle for a short distance in an
open area where it can receive a
GPS signal. The compass system
will automatically determine when a
GPS signal is restored and provide
a heading again. See Compass
Messages on page 5-32 for the
messages that may be displayed for
the compass.
Clock
Setting the Time and Date with
Faceplate Controls
To set the time or date:
1. Select SETTINGS from the
Home Page, then select Time
and Date.
2. Select the desired function.
3. Turn the MENU knob to increase or decrease the value.
4. Press the MENU knob to go to the next value. After the last
value is selected, the system will
update and return to the Settings
menu. Press
oBACK to go to
the last menu and save the
changes.
Auto Set requires an OnStar
subscription.
If auto timing is set, the time
displayed on the clock may not
update immediately when driving
into a new time zone.

Black plate (30,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
5-30 Instruments and Controls
cylinders the vehicle is running on.
SeeActive Fuel Management®on
page 9-30.
Press
pto select the distance or
reset best value. Use
wandxto
choose the distance and press
V.
Press
wandxto select “Reset
Best Score.” Press
Vto reset the
best average fuel economy. After
reset, the best value displays “-,-”
until the selected distance has been
traveled.
The display provides information on
how current driving behavior affects
the running average and how well
recent driving compares to the best
that has been achieved for the
selected distance.
Timer: This display can be used as
a timer. To start the timer, press
V
while this display is active. The
display will show the amount of time
that has passed since the timer was
last reset. To stop the timer, press
V
briefly while this display is active and the timer is running. To reset
the timer to zero, press and hold
V
while this display is active, or presspand select reset.
Speed Limit (If Equipped): Shows
sign information, which comes from
a roadway database in the onboard
navigation.
Engine Hours: Shows the total
number of hours the engine has run.
Transmission Fluid
Temperature: Shows the
temperature of the automatic
transmission fluid in either degrees
Celsius (°C) or degrees
Fahrenheit (°F).
Trailer Brake (If Equipped): On
vehicles with the Integrated Trailer
Brake Control (ITBC) system, the
trailer brake display appears in
the DIC.
TRAILER GAIN shows the trailer
gain setting. This setting can be
adjusted from 0.0 to 10.0 with either
a trailer connected or disconnected. OUTPUT shows the power output to
the trailer anytime a trailer with
electric brakes is connected. Output
is displayed as a bar graph. Dashes
may appear in the OUTPUT display
if a trailer is not connected.
Off Road:
Displays vehicle pitch
and roll information, road wheel
angle, and four-wheel drive (4WD)
status.
Blank Page: Shows no
information.

Black plate (34,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
5-34 Instruments and Controls
added strain on a hot engine, the air
conditioning compressor
automatically turns off. When the
coolant temperature returns to
normal, the air conditioning
compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
ENGINE OVERHEATED IDLE
ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down. SeeEngine
Coolant Temperature Gauge on
page 5-16.
When towing, use Tow/Haul Mode
to prevent damage to the engine or
transmission. See Tow/Haul Mode
on page 9-36.
ENGINE OVERHEATED STOP
ENGINE
This message displays and a chime
may sound if the engine cooling
system reaches unsafe
temperatures for operation. Stop
and turn off the vehicle as soon as it
is safe to do so to avoid severe
damage. This message clears when
the engine has cooled to a safe
operating temperature.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the CHANGE ENGINE
OIL SOON message. See Engine
Oil Life System on page 10-9 for
information on how to reset the
message. See Engine Oil on
page 10-6 andMaintenance
Schedule on page 11-2.
ENGINE OIL LOW ADD OIL
On some vehicles, this message
displays when the engine oil level
may be too low. Check the oil level
before filling to the recommended
level. If the oil is not low and this
message remains on, take the
vehicle to your dealer for service.
See Engine Oil on page 10-6.
ENGINE OIL HOT IDLE
ENGINE
This message displays when the
engine oil becomes hotter than the
normal operating temperature. Stop
and allow the vehicle to idle until it
cools down. See Engine Coolant
Temperature Gauge on page 5-16.
OIL PRESSURE LOW STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as

Black plate (41,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
Instruments and Controls 5-41
pressure message appears on the
DIC, stop as soon as you can. Have
the tire pressures checked and set
to those shown on the Tire and
Loading Information label. SeeTires
on page 10-44, Vehicle Load Limits
on page 9-14, and Tire Pressure on
page 10-51. The DIC also shows
the tire pressure values. See Driver
Information Center (DIC) on
page 5-28.
Transmission Messages
4WD OFF
If equipped with four-wheel drive,
this message displays when the
four-wheel-drive system is
temporarily disabled due to an
overheated condition. The vehicle
will run in two-wheel drive when this
message is present. Once the
four-wheel-drive system cools down,
the message turns off and the
four-wheel-drive system returns to
normal operation.
4WD SHIFT IN PROGRESS
This message will display while the
four-wheel-drive system is shifting.
FOR 4WD LOW SHIFT TO
NEUTRAL
If a four-wheel drive shift into 4nis
requested, and the vehicle speed is
correct, but the transmission is not
in N (Neutral), this message will
display until the transmission is
shifted to N (Neutral).
FOR 4WD LOW SLOW TO XXX
If a four-wheel drive shift into 4nis
requested, but the vehicle speed is
too high, this message will display
until the correct vehicle speed is
reached.
GRADE BRAKING ACTIVE
This message displays when grade
braking has been activated while
driving on downhill grades. This
message will only appear the first
time the feature is activated in an
ignition cycle. See
Tow/Haul Mode on page 9-36,
Automatic Transmission on
page 9-31, and Cruise Control on
page 9-47.
GRADE BRAKING OFF
This message displays when grade
braking has been disabled with the
Tow/Haul Mode button on the end of
the shift lever. See Tow/Haul Mode
on page 9-36, Automatic
Transmission on page 9-31, and
Cruise Control on page 9-47.
GRADE BRAKING ON
This message displays when grade
braking has been enabled with the
Tow/Haul Mode button on the end of
the shift lever. See Tow/Haul Mode
on page 9-36, Automatic
Transmission on page 9-31, and
Cruise Control on page 9-47.
SERVICE 4WD
If the vehicle has four-wheel drive,
this message may display if a
problem occurs with the
four-wheel-drive system. If this