wheel GMC YUKON 2015 Owner's Guide

Black plate (42,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
5-42 Instruments and Controls
VEHICLE IN 4WD LOW
This message will display if the
vehicle is driven in Four-Wheel
Drive Low for about 10 minutes
above 72 km/h (45 mph).
Vehicle Reminder
Messages
CHECK TRAILER WIRING
On vehicles with the Integrated
Trailer Brake Control (ITBC) system,
this message may display and a
chime may sound when one of the
following conditions exists:
.A trailer with electric brakes
becomes disconnected from the
vehicle.
‐If the disconnect occurs while
the vehicle is stopped, this
message clears itself after a
short time.
‐ If the disconnect occurs while
the vehicle is moving, this
message stays on until the
ignition is turned off.
.There is a short in the wiring to
the electric trailer brakes.
When this message displays, power
is no longer available to the trailer
brakes.
As soon as it is safe to do so,
carefully pull the vehicle over to the
side of the road and turn the ignition
off. Check the wiring connection to
the trailer and turn the ignition back
on. This message clears if the trailer
is reconnected. This message also
clears if you acknowledge it. If this
message still displays, either the
vehicle or the trailer needs service.
See your dealer.
See “Integrated Trailer Brake
Control System” underTowing
Equipment on page 9-81.
ICE POSSIBLE DRIVE
WITH CARE
This message displays when ice
conditions are possible.
TRAILER CONNECTED
On vehicles with the Integrated
Trailer Brake Control (ITBC) system,
this message displays briefly when
a trailer with electric or electric over
hydraulic brakes is first connected
to the vehicle.
This message clears itself after
several seconds. This message also
clears if you acknowledge it. After
this message clears, the TRAILER
GAIN and OUTPUT displays appear
in the DIC.
See Driver Information Center (DIC)
on page 5-27 and“Integrated Trailer
Brake Control System” under
Towing Equipment on page 9-81.
Vehicle Speed Messages
REDUCE SPEED FOR HILL
DESCENT CONTROL
This message displays when
attempting to enable Hill Descent
Control (HDC) when the vehicle
speed is too high. See Hill Descent
Control (HDC) on page 9-46.

Black plate (46,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
5-46 Instruments and Controls
Collision Alert as well as the
automatic braking capability of the
Auto Collision Preparation feature
are available. The Alert setting
disables most automatic braking
functions of the Auto Collision
Preparation feature. Some
last-second automatic braking
capability is still provided with the
Alert setting, but it is much less
likely to be triggered by most driving
conditions. Off disables all Forward
Collision Alert and automatic
braking capabilities of the Auto
Collision Preparation feature.
Select Off, Alert and Brake, or Alert.
See”Auto Collision Preparation” in
Object Detection System Messages
on page 5-35.
Park Assist
This allows the feature to be turned
on or off. See Assistance Systems
for Parking or Backing on
page 9-59.
Select Off, On, or On with Towbar
Attached. Side Blind Zone Alert
This allows the feature to be turned
on or off. See
Side Blind Zone Alert
(SBZA) on page 9-65.
Select Off or On.
Rear Cross Traffic Alert
This allows the feature to be turned
on or off. See Assistance Systems
for Parking or Backing on
page 9-59.
Select Off or On.
Comfort and Convenience
Select the Comfort and
Convenience menu and the
following may display:
.Auto Memory Recall
.Easy Exit Options
.Chime Volume
.Reverse Tilt Mirror
.Auto Mirror Folding
.Auto Wipe in Reverse Gear Auto Memory Recall
This allows the feature to be turned
on or off.
Select On, Off.
Easy Exit Options
This allows the feature to be turned
on or off.
Select On or Off.
Chime Volume
This allows the selection of the
chime volume level.
Press + or
−to adjust the volume.
Reverse Tilt Mirror
When on, the driver and/or
passenger mirrors will tilt downward
when the vehicle is shifted to
R (Reverse) to improve visibility of
the ground near the rear wheels.
Select Off, On - Driver and
Passenger, On - Driver, or On -
Passenger.

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-2
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . 6-3
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 6-3
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 6-3
Hazard Warning Flashers . . . . . 6-4
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 6-4
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-5
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 6-6
Dome Lamps . . . . . . . . . . . . . . . . . 6-6
Reading Lamps . . . . . . . . . . . . . . . 6-6
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . 6-7
Exit Lighting . . . . . . . . . . . . . . . . . . . 6-7
Battery Load Management . . . . 6-8
Battery Power Protection . . . . . . 6-8Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
There are four positions:
O(Off): Turns off the automatic
headlamps and Daytime Running
Lamps (DRL). Turn the headlamp
control to the off position again to
turn the automatic headlamps or
DRL back on.

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
6-6 Lighting
Interior Lighting
Instrument Panel
Illumination Control
This feature controls the brightness
of the instrument panel lights and is
next to the exterior lamp control.
D(Instrument Panel
Illumination): Move the
thumbwheel up or down to brighten
or dim the lights.
Dome Lamps
There are dome lamps in the
overhead console and the headliner,
if equipped.
To change the dome lamp settings,
press the following:
OFF: Turns the lamps off, even
when a door is open.
DOOR: The lamps come on
automatically when a door is
opened.
ON: Turns all dome lamps on.
Reading Lamps
There are reading lamps in the
overhead console and the headliner,
if equipped. To operate, the ignition
must be in the ACC/ACCESSORY
or ON/RUN position, or using
Retained Accessory Power (RAP).

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
8-6 Climate Controls
Manual Operation
9(Fan Control):Turn clockwise
or counterclockwise to increase or
decrease the fan speed. Turn
completely counterclockwise to turn
the fan/power off.
TEMP (Temperature Control):
Turn clockwise or counterclockwise
to increase or decrease the airflow
temperature into the passenger
area. If the SYNC button is pressed
on the front climate controls, the
rear climate temperature is linked to
the driver temperature setting.
MODE (Air Delivery Mode
Control): Press to change the
direction of the airflow in the vehicle.
Repeatedly press the button until
the desired mode appears on the
display. Multiple presses will cycle
through the delivery selections.
MorL(Heated Rear Seats, If
Equipped): Press
MorLto heat
the left or right outboard seat
cushion. See Heated Rear Seats on
page 3-9.
Air Vents
Adjustable air vents are in the
center and on the side of the
instrument panel.
1. Slider Knob
2. Thumbwheel
Move the slider knobs (1) to change
the direction of the airflow.
Use the thumbwheels (2) near the
air vents to open or close off the
airflow. Operation Tips
.Clear away any ice, snow,
or leaves from the air inlets at
the base of the windshield that
could block the flow of air into
the vehicle.
.When you enter a vehicle in cold
weather, press the fan up button
to the maximum fan level before
driving. This helps clear the
intake ducts of snow and
moisture, and reduces the
chance of fogging the inside of
the window.
.Keep the air path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
.Use of non-GM approved hood
deflectors can adversely affect
the performance of the system.
Check with your dealer before
adding equipment to the outside
of the vehicle.

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
Driving and Operating 9-1
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . . 9-2
Defensive Driving . . . . . . . . . . . . . 9-3
Drunk Driving . . . . . . . . . . . . . . . . . 9-3
Control of a Vehicle . . . . . . . . . . . 9-3
Braking . . . . . . . . . . . . . . . . . . . . . . . 9-3
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-4
Off-Road Recovery . . . . . . . . . . . . 9-4
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Driving . . . . . . . . . . . . . . 9-5
Driving on Wet Roads . . . . . . . 9-10
Hill and Mountain Roads . . . . . 9-11
Winter Driving . . . . . . . . . . . . . . . . 9-11
If the Vehicle Is Stuck . . . . . . . . 9-13
Vehicle Load Limits . . . . . . . . . . 9-14
Starting and Operating
New Vehicle Break-In . . . . . . . . 9-19
Adjustable Throttle and BrakePedal . . . . . . . . . . . . . . . . . . . . . . . 9-20
Ignition Positions (Key Access) . . . . . . . . . . . . . . . . . . . . 9-20
Ignition Positions (Keyless Access) . . . . . . . . . . . . . . . . . . . . 9-22 Starting the Engine . . . . . . . . . . 9-24
Engine Heater . . . . . . . . . . . . . . . 9-26
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . 9-27
Shifting Into Park . . . . . . . . . . . . 9-27
Shifting out of Park . . . . . . . . . . 9-29
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . 9-29
Active Fuel Management
®. . . 9-30
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 9-30
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . 9-31
Automatic Transmission
Automatic Transmission . . . . . 9-31
Manual Mode . . . . . . . . . . . . . . . . 9-34
Tow/Haul Mode . . . . . . . . . . . . . . 9-35
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . 9-36
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . 9-41
Parking Brake . . . . . . . . . . . . . . . 9-42
Brake Assist . . . . . . . . . . . . . . . . . 9-43
Hill Start Assist (HSA) . . . . . . . 9-43
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . 9-44
Hill Descent Control (HDC) . . . . . . . . . . . . . . 9-46
Magnetic Ride Control . . . . . . . 9-47
Locking Rear Axle . . . . . . . . . . . 9-47
Automatic Level Control . . . . . 9-47
Cruise Control
Cruise Control . . . . . . . . . . . . . . . 9-48
Adaptive Cruise Control . . . . . 9-51
Driver Assistance Systems
Driver Assistance
Systems . . . . . . . . . . . . . . . . . . . . 9-58
Assistance Systems for Parking or Backing . . . . . . . . . 9-59
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . 9-62
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . 9-62
Active Emergency Braking System . . . . . . . . . . . . . . . . . . . . . 9-64
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . 9-65
Lane Change Alert . . . . . . . . . . . 9-66
Lane Departure Warning (LDW) . . . . . . . . . . . . . 9-68

Black plate (2,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
9-2 Driving and Operating
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . 9-70
California FuelRequirements . . . . . . . . . . . . . . 9-71
Fuels in Foreign Countries . . . 9-71
Fuel Additives . . . . . . . . . . . . . . . 9-71
E85 or FlexFuel . . . . . . . . . . . . . . 9-71
Filling the Tank . . . . . . . . . . . . . . 9-72
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 9-74
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . 9-74
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . 9-74
Trailer Towing . . . . . . . . . . . . . . . . 9-77
Towing Equipment . . . . . . . . . . . 9-81
Trailer Sway Control (TSC) . . . . . . . . . . . . . . 9-88
Conversions and Add-Ons
Add-On ElectricalEquipment . . . . . . . . . . . . . . . . . 9-89
Driving Information
Distracted Driving
Distraction comes in many forms
and can take your focus from the
task of driving. Exercise good
judgment and do not let other
activities divert your attention away
from the road. Many local
governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, always
keep your eyes on the road, hands
on the wheel, and mind on the drive.
.Do not use a phone in
demanding driving situations.
Use a hands-free method to
place or receive necessary
phone calls.
.Watch the road. Do not read,
take notes, or look up
information on phones or other
electronic devices.
.Designate a front seat
passenger to handle potential
distractions.
.Become familiar with vehicle
features before driving, such as
programming favorite radio
stations and adjusting climate
control and seat settings.
Program all trip information into
any navigation device prior to
driving.
.Wait until the vehicle is parked
to retrieve items that have fallen
to the floor.
.Stop or park the vehicle to tend
to children.
.Keep pets in an appropriate
carrier or restraint.
.Avoid stressful conversations
while driving, whether with a
passenger or on a cell phone.

Black plate (4,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
9-4 Driving and Operating
If the engine ever stops while the
vehicle is being driven, brake
normally but do not pump the
brakes. Doing so could make the
pedal harder to push down. If the
engine stops, there will be some
power brake assist but it will be
used when the brake is applied.
Once the power assist is used up, it
can take longer to stop and the
brake pedal will be harder to push.
Steering
Electric Power Steering
This vehicle has electric power
steering. It does not have power
steering fluid. Regular maintenance
is not required.
If power steering assist is lost due
to a system malfunction, the vehicle
can be steered, but may require
increased effort.
See your dealer if there is a
problem.If the steering assist is used for an
extended period of time, power
assist may be reduced.
If the steering wheel is turned until it
reaches the end of its travel, and is
held in that position for an extended
period of time, power steering assist
may be reduced.
Normal use of the power steering
assist should return when the
system cools down.
See specific vehicle steering
messages under
Steering System
Messages on page 5-39. See your
dealer if there is a problem.
Curve Tips
.Take curves at a reasonable
speed.
.Reduce speed before entering a
curve.
.Maintain a reasonable steady
speed through the curve.
.Wait until the vehicle is out of
the curve before accelerating
gently into the straightaway.
Steering in Emergencies
.There are some situations when
steering around a problem may
be more effective than braking.
.Holding both sides of the
steering wheel allows you to turn
180 degrees without removing
a hand.
.Antilock Brake System (ABS)
allows steering while braking.
Off-Road Recovery

Black plate (5,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
Driving and Operating 9-5
The vehicle's right wheels can drop
off the edge of a road onto the
shoulder while driving. Follow
these tips:
1. Ease off the accelerator andthen, if there is nothing in the
way, steer the vehicle so that it
straddles the edge of the
pavement.
2. Turn the steering wheel about one-eighth of a turn, until the
right front tire contacts the
pavement edge.
3. Turn the steering wheel to go straight down the roadway.
Loss of Control
Skidding
There are three types of skids that
correspond to the vehicle's three
control systems:
.Braking Skid —wheels are not
rolling.
.Steering or Cornering Skid —
too much speed or steering in a
curve causes tires to slip and
lose cornering force.
.Acceleration Skid —too much
throttle causes the driving
wheels to spin.
Defensive drivers avoid most skids
by taking reasonable care suited to
existing conditions, and by not
overdriving those conditions. But
skids are always possible.
If the vehicle starts to slide, follow
these suggestions:
.Ease your foot off the
accelerator pedal and steer the
way you want the vehicle to go.
The vehicle may straighten out.
Be ready for a second skid if it
occurs.
.Slow down and adjust your
driving according to weather
conditions. Stopping distance
can be longer and vehicle
control can be affected when
traction is reduced by water,
snow, ice, gravel, or other material on the road. Learn to
recognize warning clues
—such
as enough water, ice, or packed
snow on the road to make a
mirrored surface —and slow
down when you have any doubt.
.Try to avoid sudden steering,
acceleration, or braking,
including reducing vehicle speed
by shifting to a lower gear. Any
sudden changes could cause
the tires to slide.
Remember: Antilock brakes help
avoid only the braking skid.
Off-Road Driving
Four-wheel-drive vehicles can be
used for off-road driving. Vehicles
without four-wheel drive and
vehicles not equipped with All
Terrain (AT) or On-Off Road (OOR)
tires must not be driven off-road
except on a level, solid surface. For
more contact information about the
original equipment tires, see the
Limited Warranty and Owner
Assistance Information manual.

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - CRC - 6/5/14
9-6 Driving and Operating
One of the best ways for successful
off-road driving is to control the
speed.
{Warning
When driving off-road, bouncing
and quick changes in direction
can easily throw you out of
position. This could cause you to
lose control and crash. You and
your passengers should always
wear safety belts.
Before Driving Off-Road
.Have all necessary maintenance
and service work completed.
.Fuel the vehicle, fill fluid levels,
and check inflation pressure in
all tires, including the spare,
if equipped.
.Read all the information about
four-wheel-drive vehicles in this
manual.
.Know the local laws that apply to
off-road driving.To gain more ground clearance if
needed, it may be necessary to
remove the front fascia lower
air dam.
{Caution
Operating the vehicle for
extended periods without the front
fascia lower air dam installed can
cause improper air flow to the
engine. Re-attach the front fascia
air dam after off-road driving.
Loading the Vehicle for
Off-Road Driving
{Warning
.Unsecured cargo on the load
floor can be tossed about
when driving over rough
terrain. You or your
passengers can be struck by
flying objects. Secure the
cargo properly.
(Continued)
Warning (Continued)
.Keep cargo in the cargo area
as far forward and as low as
possible. The heaviest things
should be on the floor,
forward of the rear axle.
.Heavy loads on the roof raise
the vehicle's center of gravity,
making it more likely to roll
over. You can be seriously or
fatally injured if the vehicle
rolls over. Put heavy loads
inside the cargo area, not on
the roof.
For more information about loading
the vehicle, see If the Vehicle Is
Stuck on page 9-13 andTires on
page 10-44.
Environmental Concerns
.Always use established trails,
roads, and areas that have been
set aside for public off-road
recreational driving and obey all
posted regulations.