
Black plate (8,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
14-8 OnStar
Potential Issues
OnStar cannot perform Remote
Door Unlock or Stolen Vehicle
Assistance after the vehicle has
been off continuously for five days.
After five days, OnStar can contact
Roadside Assistance and a
locksmith to help gain access to the
vehicle.
Global Positioning
System (GPS)
.Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels,
underpasses, or parking
garages; or in an area with very
dense trees. If GPS signals are
not available, the OnStar system
should still operate to call
OnStar. However, OnStar could
have difficulty identifying the
exact location.
.In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.
A temporary loss of GPS can cause
loss of the ability to send a
Turn-by-Turn Navigation route. The
Advisor may give a verbal route or
may ask for a call back after the
vehicle is driven into an open area.
Cellular and GPS Antennas
Do not place items over or near the
antenna to prevent blocking cellular
and GPS signal reception. Cellular
reception is required for OnStar to
send remote signals to the vehicle.
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Press
Qto try the
call again or try again after driving a
few miles into another cellular area.
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not operate if the battery is
discharged or disconnected.
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment on page 9-89. Added
electrical equipment may interfere
with the operation of the OnStar
system and cause it to not operate.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada). We
recommend that you review it. If you
have any questions, call
1-888-4-ONSTAR (1-888-466-7827)
or press
Qto speak with an

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-27
Active Emergency Braking System . . . . . . . . 1-20, 9-64
Active Fuel Management
®. . . . . 9-30
Adaptive Cruise Control . . . . . . . 9-51
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-89
Additional Information
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-6
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . 11-8
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . 9-20
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-13
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 8-7
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6 Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . 3-41
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . 3-33
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-35
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-33
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . 3-34
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-32
Where Are the Airbags? . . . . . . 3-30
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-40
Passenger Status Indicator . . . 5-17
Readiness Light . . . . . . . . . . . . . . 5-17
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-40
System Check . . . . . . . . . . . . . . . . 3-28
Alarm Vehicle Security . . . . . . . . . . . . . . 2-22
Alert Lane Change . . . . . . . . . . . . . . . . . 9-66
Side Blind Zone (SBZA) . . . . . . 9-65 All-Season Tires . . . . . . . . . . . . . . 10-45
All-Terrain Tires . . . . . . . . . . . . . . . 10-46
Antilock Brake
System (ABS) . . . . . . . . . . . . . . . . 9-41
Warning Light . . . . . . . . . . . . . . . . . 5-22
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-86
Interior . . . . . . . . . . . . . . . . . . . . . . 10-90
Armrest Storage . . . . . . . . . . . . . . . . 4-2
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . 13-5
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . 9-62
Assistance Systems for Parking and Backing . . . . . . . . . 9-59
Automatic
Dimming Mirrors . . . . . . . . . . . . . . 2-28
Door Locks . . . . . . . . . . . . . . . . . . . 2-17
Headlamp System . . . . . . . . . . . . . 6-3
Level Control . . . . . . . . . . . . . . . . . 9-47
Transmission . . . . . . . . . . . . . . . . . 9-31
Transmission Fluid . . . . . . . . . 10-10
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 9-34
Shift Lock ControlFunction Check . . . . . . . . . . . 10-27

Black plate (2,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
i-2 INDEX
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-24
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-25
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-23Jump Starting . . . . . . . . . . . . . . . 10-77
Load Management . . . . . . . . . . . . . 6-8
Power Protection . . . . . . . . . . . . . . 6-8
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-30
Blade Replacement, Wiper . . . 10-28
Blind Spot Mirrors . . . . . . . . . . . . . 2-28
Brake Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 9-20
System Warning Light . . . . . . . . 5-21
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-20 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-41
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-43
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-21
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-42
System Messages . . . . . . . . . . . . 5-31
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Braking System
Active Emergency . . . . . . . . . . . . 1-20
Break-In, New Vehicle . . . . . . . . . 9-19 Bulb Replacement . . . . . . . . . . . . 10-33
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-5
Front Turn Signal Lamps . . . 10-31
Halogen Bulbs . . . . . . . . . . . . . . 10-30
Headlamp Aiming . . . . . . . . . . . 10-29
Headlamps . . . . . . . . . . . . . . . . . 10-30
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . 10-30
License Plate Lamps . . . . . . . 10-32
Taillamps, Turn Signal, Stoplamps, and
Back-up Lamps . . . . . . . . . . . 10-31
Buying New Tires . . . . . . . . . . . . . 10-60
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-5
California Fuel Requirements . . . . . . . . . . . 9-71
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2 Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 9-30
Liftgate . . . . . . . . . . . . . . . . . . . . . . . 2-17
Winter Driving . . . . . . . . . . . . . . . . 9-11
Cargo Cover Panels . . . . . . . . . . . . . . . . . . 4-3
Cautions, Danger, and
Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
Center Console Storage . . . . . . . . 4-2
Center Seat . . . . . . . . . . . . . . . . . . . . 3-3
Chains, Tire . . . . . . . . . . . . . . . . . . 10-65
Charging System Light . . . . . . . . 5-18
Check Engine Light . . . . . . . . . . . . . . . . . . 5-19
IgnitionTransmission Lock . . . . . . . . 10-27
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 3-44
Lower Anchors and Tethers for Children . . . . . . . . . 3-50
Older Children . . . . . . . . . . . . . . . . 3-42
Securing . . . . . . . . . . . . . . . . 3-59, 3-62
Systems . . . . . . . . . . . . . . . . . . . . . . 3-47
Child-View Mirror . . . . . . . . . . . . . . 2-30

Black plate (3,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
INDEX i-3
CleaningExterior Care . . . . . . . . . . . . . . . 10-86
Interior Care . . . . . . . . . . . . . . . . 10-90
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . 8-1
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Cluster, Instrument . . . . . . . . . . . . 5-10
Collision Damage Repair . . . . . . 13-9
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-5 Messages . . . . . . . . . . . . . . . . . . . . 5-31
Connections OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-4
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-46
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 9-44
Control Light Hill Descent . . . . . . . . . . . . . . . . . . 5-23
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convex Mirrors . . . . . . . . . . . . . . . . 2-26
Coolant
Engine . . . . . . . . . . . . . . . . . . . . . . 10-15
Engine TemperatureGauge . . . . . . . . . . . . . . . . . . . . . . 5-15 Cooling System . . . . . . . . . . . . . . . 10-14
Engine Messages . . . . . . . . . . . . 5-33
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . 13-8
Cover Cargo Panels . . . . . . . . . . . . . . . . . . 4-3
Cruise Control . . . . . . . . . . . . . . . . . 9-48
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Messages . . . . . . . . . . . . . . . . . . . . 5-32
Cruise Control, Active . . . . . . . . . 9-51
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance . . . . . . . . . . 13-4 Offices . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-4
Customer Information
Service PublicationsOrdering Information . . . . . . .13-11
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . 13-1
D
Damage Repair, Collision . . . . . . 13-9
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-14
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-3
Defensive Driving . . . . . . . . . . . . . . . 9-3
Delayed Locking . . . . . . . . . . . . . . . 2-16
Distracted Driving . . . . . . . . . . . . . . . 9-2
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-6
Door Ajar Messages . . . . . . . . . . . . . . . 5-32
Delayed Locking . . . . . . . . . . . . . . 2-16
Locks . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Power Locks . . . . . . . . . . . . . . . . . . 2-16
Drive Belt Routing, Engine . . . . . 12-4
Driver Assistance Systems . . . . 9-58
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 5-27
Driving Assistance Systems . . . . . . . . . . 9-62
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 9-74
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

Black plate (4,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
i-4 INDEX
Driving (cont'd)For Better Fuel Economy . . . . . 1-24
Hill and Mountain Roads . . . . . . 9-11
If the Vehicle is Stuck . . . . . . . . . 9-13
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road . . . . . . . . . . . . . . . . . . . . . . 9-5
Off-Road Recovery . . . . . . . . . . . . 9-4
Vehicle Load Limits . . . . . . . . . . . 9-14
Wet Roads . . . . . . . . . . . . . . . . . . . 9-10
Winter . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 8-1
E
E85 or FlexFuel . . . . . . . . . . . . . . . 9-71
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . 9-89
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-34
Fuses . . . . . . . . . . . . . . . . . . . . . . 10-34
Instrument Panel Fuse Block . . . . . . . . . 10-38, 10-40
Overload . . . . . . . . . . . . . . . . . . . 10-33
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-43 Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Engine Air Cleaner/Filter . . . . . . . . . . . 10-13
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-19
Compartment Overview . . . . . . . 10-5
Coolant . . . . . . . . . . . . . . . . . . . . . 10-15
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-15
Cooling System . . . . . . . . . . . . . 10-14
Cooling System Messages . . . 5-33
Drive Belt Routing . . . . . . . . . . . . 12-4
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-30
Fan . . . . . . . . . . . . . . . . . . . . . . . . . 10-19
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-26
Oil Life System . . . . . . . . . . . . . . . 10-9
Oil Messages . . . . . . . . . . . . . . . . . 5-33
Oil Pressure Gauge . . . . . . . . . . 5-14
Overheating . . . . . . . . . . . . . . . . 10-18
Power Messages . . . . . . . . . . . . . 5-34
Running While Parked . . . . . . . . 9-31
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-24
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-7
Equipment, Towing . . . . . . . . . . . . 9-81
Event Data Recorders . . . . . . . . 13-14 Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-7
Extender, Safety Belt . . . . . . . . . . 3-27
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-2
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . 10-19
Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Filter, Engine Air Cleaner . . . . . . . . . 10-13
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-3
Flashers, Hazard Warning . . . . . . 6-4
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-66
Changing . . . . . . . . . . . . . . . . . . . 10-67
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-71
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-94
Fluid Automatic Transmission . . . . 10-10
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-21
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 9-36
Washer . . . . . . . . . . . . . . . . . . . . . 10-20

Black plate (5,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
INDEX i-5
Fog LampsBulb Replacement . . . . . . . . . . . . . 6-5
Folding Mirrors . . . . . . . . . . . . . . . . 2-27
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . 9-62
Four-Wheel Drive . . . . . . . 9-36, 10-24
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . 13-12
Front Axle . . . . . . . . . . . . . . . . . . . . 10-24
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Front Seats Heated and Cooled . . . . . . . . . . . . 3-7
Front Turn Signal Lamps . . . . . 10-31
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-70 Additives . . . . . . . . . . . . . . . . . . . . . 9-71
Economy Driving . . . . . . . . . . . . . 1-24
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 9-74
Filling the Tank . . . . . . . . . . . . . . . 9-72
Foreign Countries . . . . . . . . . . . . 9-71
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Low Fuel Warning Light . . . . . . . 5-25
Management, Active . . . . . . . . . . 9-30
Requirements, California . . . . . 9-71
System Messages . . . . . . . . . . . . 5-34 Full-Size Spare Tire . . . . . . . . . . 10-76
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 10-34
Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-34
Instrument Panel Fuse Block . . . . . . . . . 10-38, 10-40
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . 10-43
G
Garage Door Opener . . . . . . . . . . 5-50Programming . . . . . . . . . . . . . . . . . 5-50
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . . 5-15
Engine Oil Pressure . . . . . . . . . . 5-14
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Odometer . . . . . . . . . . . . . . . . . . . . . 5-12
Speedometer . . . . . . . . . . . . . . . . . 5-12
Tachometer . . . . . . . . . . . . . . . . . . . 5-12
Trip Odometer . . . . . . . . . . . . . . . . 5-12
Voltmeter . . . . . . . . . . . . . . . . . . . . . 5-15
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . . 5-9 General Information
Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-74
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glass Replacement . . . . . . . . . . . 10-29
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . 13-5
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-30
Hazard Warning Flashers . . . . . . . 6-4
Head Restraints . . . . . . . . . . . . . . . . 3-2
Headlamps . . . . . . . . . . . . . . . . . . . 10-30Aiming . . . . . . . . . . . . . . . . . . . . . . 10-29
Automatic . . . . . . . . . . . . . . . . . . . . . . 6-3
Bulb Replacement . . . . . . . . . . 10-30
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-3
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . 10-30
High-Beam On Light . . . . . . . . . . 5-26
High/Low Beam Changer . . . . . . 6-2
Lamps On Reminder . . . . . . . . . 5-26

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
i-6 INDEX
HeatedRear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Steering Wheel . . . . . . . . . . . . . . . . 5-3
Heated and Cooled Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Heated Mirrors . . . . . . . . . . . . . . . . . 2-28
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-26
High-Beam On Light . . . . . . . . . . . 5-26
High-Speed Operation . . . . . . . . 10-53
Hill and Mountain Roads . . . . . . . 9-11
Hill Descent Control (HDC) . . . . 9-46
Hill Descent Control Light . . . . . . 5-23
Hill Start Assist (HSA) . . . . . . . . . 9-43
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-20
I
Ignition Positions . . . . . . . . 9-20, 9-22
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 10-27
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-24
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 5-23 Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . 3-44
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Infotainment System . . . . . . . . . . 13-15
Instrument Cluster . . . . . . . . . . . . . 5-10
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . 4-1
Interior Rearview Mirrors . . . . . . . 2-29
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-77
K
Key and Lock Messages . . . . . . . 5-35
Keyless Entry Remote (RKE) System . . . 2-5, 2-7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-46
Lamps Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Exterior Controls . . . . . . . . . . . . . . . 6-1 Lamps (cont'd)
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . . 6-2
Front Turn Signal . . . . . . . . . . . 10-31
License Plate . . . . . . . . . . . . . . . 10-32
Malfunction Indicator . . . . . . . . . 5-19
Messages . . . . . . . . . . . . . . . . . . . . 5-35
On Reminder . . . . . . . . . . . . . . . . . 5-26
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-6
Lane Change Alert . . . . . . . . . . . . 9-66
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . 9-68
Lane Departure Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 3-26
Lap-Shoulder Belt . . . . . . . . . . . . . 3-21
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 3-59
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . 3-50
LED Lighting . . . . . . . . . . . . . . . . . . 10-30
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 9-47
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Light Hill Decent Control . . . . . . . . . . . 5-23

Black plate (7,1)GMC Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-7063682) - 2015 - crc - 6/5/14
INDEX i-7
LightingEntry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Illumination Control . . . . . . . . . . . . 6-6
LED . . . . . . . . . . . . . . . . . . . . . . . . 10-30
Lights Airbag Readiness . . . . . . . . . . . . . 5-17
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 5-22
Brake System Warning . . . . . . . 5-21
Charging System . . . . . . . . . . . . . 5-18
Cruise Control . . . . . . . . . . . . . . . . 5-26
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
Front Fog Lamp . . . . . . . . . . . . . . 5-26
High-Beam On . . . . . . . . . . . . . . . . 5-26
High/Low Beam Changer . . . . . . 6-2
Lane Departure Warning . . . . . . 5-23
Low Fuel Warning . . . . . . . . . . . . 5-25
Safety Belt Reminders . . . . . . . . 5-16
Security . . . . . . . . . . . . . . . . . . . . . . 5-25
StabiliTrak
®OFF . . . . . . . . . . . . . 5-24
Tire Pressure . . . . . . . . . . . . . . . . . 5-25
Tow/Haul Mode . . . . . . . . . . . . . . . 5-23
Traction Control System (TCS)/StabiliTrak
®. . . . . . . . . . 5-24
Traction Off . . . . . . . . . . . . . . . . . . . 5-24 Locking Rear Axle . . . . . . . . . . . . . 9-47
Locks
Automatic Door . . . . . . . . . . . . . . . 2-17
Delayed Locking . . . . . . . . . . . . . . 2-16
Door . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Lockout Protection . . . . . . . . . . . . 2-17
Power Door . . . . . . . . . . . . . . . . . . . 2-16
Safety . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Loss of Control . . . . . . . . . . . . . . . . . 9-5
Low Fuel Warning Light . . . . . . . . 5-25
Low-Profile Tires . . . . . . . . . . . . . . 10-46
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . 3-50
Lumbar Adjustment . . . . . . . . . . . . . 3-4 Front Seats . . . . . . . . . . . . . . . . . . . . 3-4
M
Magnetic Ride Control . . . . . . . . . 9-47
Maintenance
Records . . . . . . . . . . . . . . . . . . . . .11-15 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 11-8
Maintenance Schedule . . . . . . . . 11-2 Recommended Fluidsand Lubricants . . . . . . . . . . . . .11-12
Transfer Case . . . . . . . . . . . . . . . . 9-36
Malfunction Indicator Lamp . . . . 5-19
Manual Mode . . . . . . . . . . . . . . . . . . 9-34
Memory Features . . . . . . . . . . . . . . . 1-8
Memory Seats . . . . . . . . . . . . . . . . . . 3-5
Messages
Airbag System . . . . . . . . . . . . . . . . 5-39
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 5-30
Brake System . . . . . . . . . . . . . . . . 5-31
Compass . . . . . . . . . . . . . . . . . . . . . 5-31
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-32
Engine Cooling System . . . . . . . 5-33
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-33
Engine Power . . . . . . . . . . . . . . . . 5-34
Fuel System . . . . . . . . . . . . . . . . . . 5-34
Key and Lock . . . . . . . . . . . . . . . . . 5-35
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 5-35
Object Detection System . . . . . 5-35
Ride Control System . . . . . . . . . . 5-37
Security . . . . . . . . . . . . . . . . . . . . . . 5-39