
Black plate (35,1)GMC Yukon/Yukon XL Owner Manual - 2011
Vehicle Care 10-35
Headlamp Aiming
The vehicle has a visual optical
headlamp aiming system. The aim
of the headlamps has been preset
at the factory and should need no
further adjustment.
However, if the vehicle is damaged
in a crash, the aim of the headlamps
may be affected and adjustment
may be necessary.
If oncoming vehicles flash their high
beams at you, this may mean the
vertical aim of the headlamps needs
to be adjusted.
It is recommended that the vehicle
be taken to the dealer for service if
the headlamps need to be adjusted.
It is possible, however, to re-aim the
headlamps as described.The vehicle should:.Be placed so the headlamps
are 7.6 m (25 ft) from a
light‐colored wall.
.Have all four tires on a level
surface which is level all the way
to the wall.
.Be placed so it is perpendicular
to the wall.
.Not have any snow, ice, or mud
on it.
.Be fully assembled and all other
work stopped while headlamp
aiming is being performed.
.Be loaded with a full tank of
fuel and one person or 75 kg
(160 lbs) sitting on the
driver seat.
.Have the tires properly inflated.
.Have the spare tire in its proper
location in the vehicle.Headlamp aiming is done with the
vehicle's low-beam headlamps.
The high-beam headlamps will be
correctly aimed if the low-beam
headlamps are aimed properly.
To adjust the vertical aim:
1. Open the hood. See
Hood on
page 10‑52. Locate the aim dot on the lens of the low‐beam headlamp.
3. Record the distance from the ground to the aim dot on the
low‐beam headlamp.

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual - 2011
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-33
Active Fuel Management
®. . . . . 9-35
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-94
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . 9-94
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . 9-28
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-6
Air Cleaner/Filter, Engine . . . . . 10-15
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-13
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-53
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-45
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . . 3-47
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-44 Airbag System (cont.)
What Will You See After
an Airbag Inflates? . . . . . . . . . . 3-45
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-43
Where Are the Airbags? . . . . . . 3-41
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-52
Passenger Status Indicator . . . 5-19
Readiness Light . . . . . . . . . . . . . . 5-18
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-51
System Check . . . . . . . . . . . . . . . . 3-39
Alarm System Anti-Theft . . . . . . . . . . . . . . . . . . . . . 2-14
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-7
Antenna Rear Side Window . . . . . . . . . . . . 7-13
Satellite Radio . . . . . . . . . . . . . . . . 7-13
Anti-Theft Alarm System . . . . . . . . . . . . . . . . 2-14
Alarm System Messages . . . . . 5-45
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . 9-50
Warning Light . . . . . . . . . . . . . . . . . 5-24 Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . 10-98
Interior . . . . . . . . . . . . . . . . . . . . . 10-102
Armrest Storage . . . . . . . . . . . . . . . . 4-2
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . 5-11
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . 13-6
Audio Players . . . . . . . . . . . . . . . . . 7-14 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
CD/DVD . . . . . . . . . . . . . . . . . . . . . . 7-19
Audio System
Radio Reception . . . . . . . . . . . . . . 7-12
Rear Seat (RSA) . . . . . . . . . . . . . 7-45
Theft-Deterrent Feature . . . . . . . . 7-3
Automatic Dimming Mirrors . . . . . . . . . . . . . . 2-20
Door Locks . . . . . . . . . . . . . . . . . . . . 2-9
Headlamp System . . . . . . . . . . . . . 6-4
Level Control . . . . . . . . . . . . . . . . . 9-55
Automatic Transmission . . . . . . . 9-37 Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-12
Manual Mode . . . . . . . . . . . . . . . . . 9-41
Shift Lock Control
Function Check . . . . . . . . . . . 10-32
Auxiliary
Roof Mounted Lamp . . . . . . . . . . . 6-6

Black plate (5,1)GMC Yukon/Yukon XL Owner Manual - 2011
INDEX i-5
Front Fog LampsLight . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Heated and Ventilated . . . . . . . . 3-10
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-68
Additives . . . . . . . . . . . . . . . . . . . . . 9-69
E85 (85% Ethanol) . . . . . . . . . . . 9-70
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-74
Filling the Tank . . . . . . . . . . . . . . . 9-72
Fuels in Foreign Countries . . . . 9-69
Gasoline Specifications . . . . . . . 9-69
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Low Fuel Warning Light . . . . . . . 5-27
Management, Active . . . . . . . . . . 9-35
Recommended . . . . . . . . . . . . . . . 9-68
Requirements, California . . . . . 9-69
System Messages . . . . . . . . . . . . 5-42
Fuel Economy
Driving . . . . . . . . . . . . . . . . . . . . . . . . 1-28
Full-Size Spare Tire . . . . . . . . . . 10-87 Fuses
Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . 10-41
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-40
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-45
G
Garage Door Opener . . . . . . . . . . 5-55
Programming . . . . . . . . . . . . . . . . . 5-55
Gasoline Specifications . . . . . . . . . . . . . . . . . 9-69
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 5-16
Engine Oil Pressure . . . . . . . . . . 5-15
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Odometer . . . . . . . . . . . . . . . . . . . . . 5-13
Speedometer . . . . . . . . . . . . . . . . . 5-13
Tachometer . . . . . . . . . . . . . . . . . . . 5-13
Trip Odometer . . . . . . . . . . . . . . . . 5-13
Voltmeter . . . . . . . . . . . . . . . . . . . . . 5-17
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 5-11 General Information
Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-74
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glass Replacement . . . . . . . . . . . 10-34
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . 13-5H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-37
Hazard Warning Flashers . . . . . . . 6-5
Head Restraints . . . . . . . . . . . . . . . . 3-2
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . 10-35
Automatic . . . . . . . . . . . . . . . . . . . . . . 6-4
Bulb Replacement . . . . . . . . . . 10-37
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-3
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
High-Beam On Light . . . . . . . . . . 5-27
High/Low Beam Changer . . . . . . 6-2
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . 3-12
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Black plate (7,1)GMC Yukon/Yukon XL Owner Manual - 2011
INDEX i-7
Lights (cont.)Low Fuel Warning . . . . . . . . . . . . 5-27
Safety Belt Reminders . . . . . . . . 5-17
Security . . . . . . . . . . . . . . . . . . . . . . 5-27
StabiliTrak
®Indicator . . . . . . . . . 5-25
Tire Pressure . . . . . . . . . . . . . . . . . 5-26
Tow/Haul Mode . . . . . . . . . . . . . . . 5-25
Locking Rear Axle . . . . . . . . . . . . . 9-55
Locks Automatic Door . . . . . . . . . . . . . . . . 2-9
Delayed Locking . . . . . . . . . . . . . . . 2-9
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Lockout Protection . . . . . . . . . . . . . 2-9
Power Door . . . . . . . . . . . . . . . . . . . . 2-8
Safety . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Loss of Control . . . . . . . . . . . . . . . . . 9-6
Low Fuel Warning Light . . . . . . . . 5-27
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . 3-62
Lumbar Adjustment . . . . . . . . . . . . . 3-6 Front Seats . . . . . . . . . . . . . . . . . . . . 3-6
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . .11-10
Maintenance Schedule Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 11-7
Scheduled Maintenance . . . . . . 11-2
Transfer Case . . . . . . . . . . 9-43, 9-48
Malfunction Indicator Lamp . . . . 5-21
Manual Mirrors . . . . . . . . . . . . . . . . 2-17
Manual Mode . . . . . . . . . . . . . . . . . . 9-41
Memory Features . . . . . . . . . . . . . . . 1-9
Messages Airbag System . . . . . . . . . . . . . . . . 5-45
Anti-Theft Alarm System . . . . . . 5-45
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 5-38
Brake System . . . . . . . . . . . . . . . . 5-38
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-39
Engine Cooling System . . . . . . . 5-40
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-41
Engine Power . . . . . . . . . . . . . . . . 5-41
Fuel System . . . . . . . . . . . . . . . . . . 5-42 Messages (cont.)
Key and Lock . . . . . . . . . . . . . . . . . 5-42
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Object Detection System . . . . . 5-42
Ride Control System . . . . . . . . . . 5-43
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45
Transmission . . . . . . . . . . . . . . . . . 5-46
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-37
Vehicle Reminder . . . . . . . . . . . . . 5-46
Washer Fluid . . . . . . . . . . . . . . . . . 5-47
Mirrors Automatic Dimming . . . . . . . . . . . 2-20
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . 2-20
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-17
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-19
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-19
Manual . . . . . . . . . . . . . . . . . . . . . . . 2-17
Manual Rearview . . . . . . . . . . . . . 2-20
Park Tilt . . . . . . . . . . . . . . . . . . . . . . 2-20
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Trailer Tow . . . . . . . . . . . . . . . . . . . . 2-17
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . 10-58

Black plate (8,1)GMC Yukon/Yukon XL Owner Manual - 2011
i-8 INDEX
N
NavigationVehicle Data Recordingand Privacy . . . . . . . . . . . . . . . 13-16
New Vehicle Break-In . . . . . . . . . . 9-28
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . 5-42
Object Detection, Side Blind Zone Alert (SBZA) . . . . . . . . . . . 9-60
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-13 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 9-7 Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-6
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . 10-10
Engine Oil Pressure
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-15
Messages . . . . . . . . . . . . . . . . . . . . 5-41
Pressure Light . . . . . . . . . . . . . . . . 5-26
Older Children, Restraints . . . . . 3-54 Online Owner Center . . . . . . . . . . 13-4
OnStar
®System . . . . . . . . . . . . . . . 1-29
Operation, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Overheated Engine
Protection
Operating Mode . . . . . . . . . . . . . 10-23
Overheating, Engine . . . . . . . . . . 10-21
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 9-33
Shifting Out of . . . . . . . . . . . . . . . . 9-34
Park Tilt Mirrors . . . . . . . . . . . . . . . . 2-20
Parking Assist, Ultrasonic . . . . . . . . . . . . . 9-58
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-51
Brake and P (Park)
Mechanism Check . . . . . . . . 10-33
Over Things That Burn . . . . . . . 9-35
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . 5-19
Passenger Sensing System . . . 3-47 Perchlorate Materials
Requirements, California . . . . . 10-3
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-47
Phone Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-47
Power
Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Protection, Battery . . . . . . . . . . . . 6-10
Retained Accessory (RAP) . . . 9-33
Seat Adjustment . . . . . . . . . . . . . . . 3-4
Steering Fluid . . . . . . . . . . . . . . . 10-24
Windows . . . . . . . . . . . . . . . . . . . . . 2-22
Power Assist Steps . . . . . . . . . . . . 2-14
Pregnancy, Using Safety
Belts . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Privacy Radio FrequencyIdentification (RFID) . . . . . . . 13-16
Program Courtesy Transportation . . . . . . 13-8
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . . 10-3

Black plate (10,1)GMC Yukon/Yukon XL Owner Manual - 2011
i-10 INDEX
S
Safety Belts . . . . . . . . . . . . . . . . . . . 3-21Care . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Extender . . . . . . . . . . . . . . . . . . . . . . 3-37
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . 3-25
Lap Belt . . . . . . . . . . . . . . . . . . . . . . 3-36
Lap-Shoulder Belt . . . . . . . . . . . . 3-30
Reminders . . . . . . . . . . . . . . . . . . . . 5-17
Replacing After a Crash . . . . . . 3-38
Use During Pregnancy . . . . . . . . 3-36
Safety Defects Reporting Canadian Government . . . . . . 13-14
General Motors . . . . . . . . . . . . . 13-14
U.S. Government . . . . . . . . . . . 13-13
Safety Locks . . . . . . . . . . . . . . . . . . . . 2-9
Safety System Check . . . . . . . . . . 3-37
Satellite Radio . . . . . . . . . . . . . . . . . . 7-8
Scheduled Maintenance . . . . . . . 11-2
Scheduling Appointments . . . . . . 13-8
Seats
Adjustment, Front . . . . . . . . . . . . . . 3-3
Center Seat . . . . . . . . . . . . . . . . . . . 3-4
Head Restraints . . . . . . . . . . . . . . . 3-2
Heated and VentilatedFront . . . . . . . . . . . . . . . . . . . . . . . . 3-10 Seats (cont.)
Heated Front . . . . . . . . . . . . . . . . . . 3-9
Heated, Rear . . . . . . . . . . . . . . . . . 3-12
Lumbar Adjustment, Front . . . . . 3-6
Power Adjustment, Front . . . . . . 3-4
Reclining Seatbacks . . . . . . . . . . . 3-7
Second Row . . . . . . . . . . . . . . . . . . 3-12
Third Row Seat . . . . . . . . . . . . . . . 3-17
Second Row Seats . . . . . . . . . . . . 3-12
Secondary Latch System . . . . . 10-84
Securing Child
Restraints . . . . . . . . 3-69, 3-72, 3-73
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 2-14
Service Accessories andModifications . . . . . . . . . . . . . . . . 10-3
Doing Your Own Work . . . . . . . . 10-4
Engine Soon Light . . . . . . . . . . . . 5-21
Maintenance Records . . . . . . .11-10
Maintenance, General Information . . . . . . . . . . . . . . . . . . 11-1
Parts Identification Label . . . . . 12-1
Publications Ordering Information . . . . . . . . . . . . . . . . 13-12
Scheduling Appointments . . . . . 13-8 Servicing the Airbag . . . . . . . . . . . 3-51
Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . 10-32
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 9-33
Out of Park . . . . . . . . . . . . . . . . . . . 9-34
Side Blind Zone Alert . . . . . . . . . . 9-60
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 6-5
Snow Plow . . . . . . . . . . . . . . . . . . . . 9-94
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . 12-2
Speedometer . . . . . . . . . . . . . . . . . . 5-13
StabiliTrak
®Indicator Light . . . . 5-25
StabiliTrak®System . . . . . . . . . . . 9-52
Start Vehicle, Remote . . . . . . . . . . 2-5
Starter Switch Check . . . . . . . . . 10-32
Starting the Engine . . . . . . . . . . . . 9-30
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-5 Fluid, Power . . . . . . . . . . . . . . . . 10-24
Wheel Adjustment . . . . . . . . . . . . . 5-2
Wheel Controls . . . . . . . . . . . . . . . . 5-2
Steps Power Assist . . . . . . . . . . . . . . . . . 2-14