2014 GMC YUKON ABS

Black plate (41,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada-
6081505) - 2014 - crc - 4/23/13
Driving and Operating 9-41
brake is fully released and the
brake warning light is off before
driving.
To release the parking brake, hold
the regular brake pedal down, then
push down momentarily on the
parking brake pedal until you feel
the pedal release. Slowly pull your
foot up off the parking brake pedal.
If the parking brake is not released
when you begin to drive, the brake
system warning light will flash and a
chime will sound warning you that
the parking brake is still on.
If you are towing a trailer and are
parking on a hill, seeDriving
Characteristics and Towing Tips on
page 9-60.
Brake Assist
This vehicle has a brake assist
feature designed to assist the driver
in stopping or decreasing vehicle
speed in emergency driving
conditions. This feature
automatically uses the stability
system hydraulic brake control module to supplement the power
brake system under conditions
where the driver has quickly and
forcefully applied the brake pedal in
an attempt to quickly stop or slow
down the vehicle. The stability
system hydraulic brake control
module increases brake pressure at
each corner of the vehicle until the
ABS activates. Minor brake pedal
pulsation or pedal movement during
this time is normal and the driver
should continue to apply the brake
pedal as the driving situation
dictates. The brake assist feature
will automatically disengage when
the brake pedal is released or brake
pedal pressure is quickly
decreased.
Hill Start Assist (HSA)
Vehicles with StabiliTrak have a Hill
Start Assist (HSA) feature, which
may be useful when the vehicle is
stopped on a grade. This feature is
designed to prevent the vehicle from
rolling, either forward or rearward,
during vehicle drive off. After thedriver completely stops and holds
the vehicle in a complete standstill
on a grade, HSA will be
automatically activated. During the
transition period between when the
driver releases the brake pedal and
starts to accelerate to drive off on a
grade, HSA holds the braking
pressure for a maximum of
two seconds to ensure that there is
no rolling. The brakes will
automatically release when the
accelerator pedal is applied within
the two-second window. If the
vehicle is equipped with the
Integrated Trailer Brake Control
(ITBC) system, HSA may also apply
the trailer brakes. It will not activate
if the vehicle is in a drive gear and
facing downhill or if the vehicle is
facing uphill and in R (Reverse).
There may be situations on minor
hills (less than 5% grade) with a
loaded vehicle or while pulling a
trailer where HSA will not activate.

Black plate (44,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada-
6081505) - 2014 - crc - 4/23/13
9-44 Driving and Operating
The TCS is enabled automatically
when the vehicle is started. It will
activate and the StabiliTrak light will
flash if it senses that any of the
wheels are spinning or beginning to
lose traction while driving. If traction
control is turned off, only the
brake-traction control portion of
traction control will work. The
engine speed management will be
disabled. In this mode, engine
power is not reduced automatically
and the driven wheels can spin
more freely. This can cause the
brake-traction control to activate
constantly.
Notice:If the wheel(s) of one axle
is allowed to spin excessively
while the StabiliTrak
®, ABS, brake
warning lights, and any relevant
DIC messages are displayed, the
transfer case could be damaged.
The repairs would not be covered
by the vehicle warranty. Reduce
engine power and do not spin the
wheel(s) excessively while these
lights and messages are
displayed. The TCS may activate on dry or
rough roads or under conditions
such as heavy acceleration while
turning or abrupt upshifts/downshifts
of the transmission. When this
happens, a reduction in acceleration
may be noticed, or a noise or
vibration may be heard. This is
normal.
If cruise control is being used when
the system activates, the StabiliTrak
light will flash and cruise control will
automatically disengage. Cruise
control may be reengaged when
road conditions allow. See
Cruise
Control on page 9-46.
StabiliTrak may also turn off
automatically if it determines that a
problem exists with the system.
If the problem does not clear itself
after restarting the vehicle, see your
dealer for service.
Vehicles with StabiliTrak have a
Trailer Sway Control (TSC) feature.
See Trailer Sway Control (TSC) on
page 9-76. Vehicles with StabiliTrak have a Hill
Start Assist (HSA) feature. See
Hill
Start Assist (HSA) on page 9-41.
Adding non-dealer accessories can
affect the vehicle's performance.
See Accessories and Modifications
on page 10-3.
Locking Rear Axle
Vehicles with a locking rear axle can
give more traction on snow, mud,
ice, sand, or gravel. It works like a
standard axle most of the time, but
when traction is low, this feature will
allow the rear wheel with the most
traction to move the vehicle.
Continuous Damping
Control (CDC)
This vehicle may have a continuous
damping control system called
Autoride
®or MagneRide™. With
this feature, improved vehicle ride
and handling is provided under a
variety of passenger and loading
conditions.

Black plate (45,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada-
6081505) - 2014 - crc - 4/23/13
Driving and Operating 9-45
Autoride and MagneRide are fully
automatic and use a computer
controller to continuously monitor
vehicle speed, wheel to body
position, lift/dive and steering
position of the vehicle. The
controller then sends signals to
each shock absorber to
independently adjust the damping
level to provide the optimum
vehicle ride.
Autoride and MagneRide also
interact with the tow/haul mode that,
when activated, will provide
additional control of the shock
absorbers. This additional control
results in better ride and handling
characteristics when the vehicle is
loaded or towing a trailer. See“Tow/
Haul Mode” underTrailer Towing on
page 9-63.Automatic Level Control
The automatic level control rear
suspension is available on light‐duty
vehicles and comes as a part of the
Continuous Damping Control (CDC)
suspension, if equipped.
This type of level control is fully
automatic and will provide a better
leveled riding position as well as
better handling under a variety of
passenger and loading conditions.
An air compressor connected to the
rear shocks will raise or lower the
rear of the vehicle to maintain
proper vehicle height. The system is
activated when the ignition key is
turned to ON/RUN and will
automatically adjust vehicle height
thereafter. The system may exhaust
(lower vehicle height) for up to
ten minutes after the ignition key
has been turned off. You may hear
the air compressor operating when
the height is being adjusted. If a weight‐distributing hitch is being
used, it is recommended to allow
the shocks to inflate, thereby
leveling the vehicle prior to adjusting
the hitch.

Black plate (62,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada-
6081505) - 2014 - crc - 4/23/13
9-62 Driving and Operating
Driving on Grades
Reduce speed and shift to a lower
gearbefore starting down a long or
steep downgrade. If the
transmission is not shifted down, the
brakes might get hot and no longer
work well.
Vehicles can tow in D (Drive). Shift
the transmission to a lower gear if
the transmission shifts too often
under heavy loads and/or hilly
conditions.
The Tow/Haul Mode may be used if
the transmission shifts too often.
See Tow/Haul Mode on page 9-32.
When towing at high altitude on
steep uphill grades, consider the
following: Engine coolant will boil at
a lower temperature than at normal
altitudes. If the engine is turned off
immediately after towing at high
altitude on steep uphill grades, the
vehicle may show signs similar to
engine overheating. To avoid this,
let the engine run while parked,
preferably on level ground, with the
automatic transmission in P (Park) for a few minutes before turning the
engine off. If the overheat warning
comes on, see
Engine Overheating
on page 10-18.
Parking on Hills
{Warning
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if facing
downhill or into traffic if facing
uphill.
2. Have someone place chocks under the trailer wheels. 3. When the wheel chocks are in
place, release the regular brakes
until the chocks absorb the load.
4. Reapply the brake pedal. Then apply the parking brake and shift
into P (Park).
5. Release the brake pedal.Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
2. Start the engine.
3. Shift into a gear.
4. Release the parking brake.
5. Let up on the brake pedal.
6. Drive slowly until the trailer is clear of the chocks.
7. Stop and have someone pick up and store the chocks.

Black plate (86,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada-
6081505) - 2014 - crc - 4/23/13
10-86 Vehicle Care
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and
Lubricants.
Washing the Vehicle
To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
Notice:Do not use
petroleum-based, acidic,
or abrasive cleaning agents as
they can damage the vehicle's
paint, metal, or plastic parts.
If damage occurs, it would not be
covered by the vehicle's warranty.
Approved cleaning products can
be obtained from your dealer.
Follow all manufacturer
directions regarding correct product usage, necessary safety
precautions, and appropriate
disposal of any vehicle care
product.
Notice:
Avoid using
high-pressure washes closer than
30 cm (12 in) to the surface of the
vehicle. Use of power washers
exceeding 8,274 kPa (1,200 psi)
can result in damage or removal
of paint and decals.
Rinse the vehicle well, before
washing and after, to remove all
cleaning agents completely. If they
are allowed to dry on the surface,
they could stain.
Dry the finish with a soft, clean
chamois or an all-cotton towel to
avoid surface scratches and water
spotting.
Finish Care
Application of aftermarket clearcoat
sealant/wax materials is not
recommended. If painted surfaces
are damaged, see your dealer to
have the damage assessed and repaired. Foreign materials such as
calcium chloride and other salts, ice
melting agents, road oil and tar, tree
sap, bird droppings, chemicals from
industrial chimneys, etc., can
damage the vehicle's finish if they
remain on painted surfaces. Wash
the vehicle as soon as possible.
If necessary, use non-abrasive
cleaners that are marked safe for
painted surfaces to remove foreign
matter.
Occasional hand waxing or mild
polishing should be done to remove
residue from the paint finish. See
your dealer for approved cleaning
products.
Do not apply waxes or polishes to
uncoated plastic, vinyl, rubber,
decals, simulated wood, or flat paint
as damage can occur.
Notice:
Machine compounding or
aggressive polishing on a
basecoat/clearcoat paint finish
may damage it. Use only
non-abrasive waxes and polishes

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada-
6081505) - 2014 - crc - 4/23/13
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-24
Active Fuel Management
®. . . . . 9-27
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-77
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . 9-78
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . 9-20
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-13
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-12
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . 3-39
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-32
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-33
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-31 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 3-32
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-30
Where Are the Airbags? . . . . . . 3-28
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-38
Passenger Status Indicator . . . 5-17
Readiness Light . . . . . . . . . . . . . . 5-16
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-38
System Check . . . . . . . . . . . . . . . . 3-27
Alarm Vehicle Security . . . . . . . . . . . . . . 2-12
All-Terrain Tires . . . . . . . . . . . . . . . 10-41
AM-FM Radio . . . . . . . . . . . . . . . . . . 7-10
Antenna Rear Side Window . . . . . . . . . . . . 7-15
Satellite Radio . . . . . . . . . . . . . . . . 7-16
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . 9-39
Warning Light . . . . . . . . . . . . . . . . . 5-22
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-86
Interior . . . . . . . . . . . . . . . . . . . . . . 10-89 Armrest Storage . . . . . . . . . . . . . . . . 4-1
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . 13-5
Audio Players . . . . . . . . . . . . . . . . . 7-16 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
CD/DVD . . . . . . . . . . . . . . . . . . . . . . 7-21
Audio System
Radio Reception . . . . . . . . . . . . . . 7-14
Rear Seat (RSA) . . . . . . . . . . . . . 7-46
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic
Dimming Mirrors . . . . . . . . . . . . . . 2-18
Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Headlamp System . . . . . . . . . . . . . 6-3
Level Control . . . . . . . . . . . . . . . . . 9-45
Transmission . . . . . . . . . . . . . . . . . 9-28
Transmission Fluid . . . . . . . . . 10-10
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 9-31
Shift Lock ControlFunction Check . . . . . . . . . . . 10-27
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 7-31
Roof Mounted Lamp . . . . . . . . . . . 6-6
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-25
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-26

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada-
6081505) - 2014 - crc - 4/23/13
i-6 INDEX
Heated Mirrors . . . . . . . . . . . . . . . . . 2-18
HeaterEngine . . . . . . . . . . . . . . . . . . . . . . . . 9-23
Heating and Air Conditioning . . . 8-1
High-Beam On Light . . . . . . . . . . . 5-25
Highway Hypnosis . . . . . . . . . . . . . 9-11
Hill and Mountain Roads . . . . . . . 9-11
Hill Start Assist (HSA) . . . . . . . . . 9-41
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-18
I
Ignition Positions . . . . . . . . . . . . . . 9-20
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 10-27
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-14
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . 3-42
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-11
Instrument Panel Overview . . . . . 1-2
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-76
K
Key and Lock Messages . . . . . . . 5-38
Keyless Entry Remote (RKE) System . . . . . . . . 2-2
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
L
Labeling, Tire Sidewall . . . . . . . . 10-41
Lamps Auxiliary RoofMounted Lamp . . . . . . . . . . . . . . . 6-6
Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . . 6-2
License Plate . . . . . . . . . . . . . . . 10-31
Malfunction Indicator . . . . . . . . . 5-19
Messages . . . . . . . . . . . . . . . . . . . . 5-38
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-7
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 3-24
Lap-Shoulder Belt . . . . . . . . . . . . . 3-19 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 3-54
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . 3-47
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 9-45
Liftgate Carbon Monoxide . . . . . . . . . . . . . . 2-9
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Illumination Control . . . . . . . . . . . . 6-7
Lights Airbag Readiness . . . . . . . . . . . . . 5-16
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-22
Brake System Warning . . . . . . . 5-21
Charging System . . . . . . . . . . . . . 5-18
Cruise Control . . . . . . . . . . . . . . . . 5-25
Engine Oil Pressure . . . . . . . . . . 5-24
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-2
Front Fog Lamp . . . . . . . . . . . . . . 5-25
High-Beam On . . . . . . . . . . . . . . . . 5-25
High/Low Beam Changer . . . . . . 6-2
Low Fuel Warning . . . . . . . . . . . . 5-24