2012 GMC YUKON turn signal

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual - 2012
14-6 OnStar
OnStar service cannot work unless
your vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area, and the wireless
service provider has coverage,
network capacity, reception, and
technology compatible with OnStar’s
service. Service involving location
information about the vehicle cannot
work unless GPS signals are
available, unobstructed, and
compatible with the OnStar
hardware. OnStar service may not
work if the OnStar equipment is not
properly installed or it has not been
properly maintained. If equipment or
software is added, connected,
or modified, OnStar service may not
work. Other problems beyond
OnStar ’s control may prevent
service such as hills, tall buildings,
tunnels, weather, electrical system
design and architecture of the
vehicle, damage to the vehicle in a
crash, or wireless phone network
congestion or jamming. See
Radio Frequency Statement on
page 13‑16 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
Services for People with
Disabilities
Advisors provide services to help
subscribers with physical disabilities
and medical conditions.
Push
Qfor help with:
.Locating a gas station with an
attendant to pump gas.
.Finding a hotel, restaurant, etc.,
that meets accessibility needs.
.Providing directions to the
closest hospital or pharmacy in
urgent situations.
TTY Users
OnStar has the ability to
communicate to the deaf, hard‐of‐
hearing, or speech‐impaired
customers while in the vehicle. The
available dealer‐installed TTY
system can provide in-vehicle
access to all of the OnStar services,
except Virtual Advisor and OnStar
Turn‐by‐Turn Navigation.
Onstar.com
The website provides access to
account information, manages the
OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
sign up for OnStar Vehicle
Diagnostics. Click on the “My
Account” tab on the home page.

Black plate (8,1)GMC Yukon/Yukon XL Owner Manual - 2012
14-8 OnStar
.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
Avoid placing 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. Push
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 9‑86. 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. Privacy-sensitive
users of wireless communications
are cautioned that the privacy of any
information sent via wireless cellular
communications cannot be assured.
Third parties may unlawfully
intercept or access transmissions
and private communications without
consent.

Black plate (2,1)GMC Yukon/Yukon XL Owner Manual - 2012
i-2 INDEX
AutomaticDimming Mirrors . . . . . . . . . . . . . . 2-19
Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Headlamp System . . . . . . . . . . . . . 6-4
Level Control . . . . . . . . . . . . . . . . . 9-50
Automatic Transmission . . . . . . . 9-31 Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-12
Manual Mode . . . . . . . . . . . . . . . . . 9-35
Shift Lock Control
Function Check . . . . . . . . . . . 10-32
Auxiliary
Roof Mounted Lamp . . . . . . . . . . . 6-7
Auxiliary Devices . . . . . . . . . . . . . . 7-30
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-30
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-31
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-28 Jump Starting . . . . . . . . . . . . . . . 10-88
Load Management . . . . . . . . . . . . . 6-9
Power Protection . . . . . . . . . . . . . 6-10
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-38
Blade Replacement, Wiper . . . 10-33
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 7-47 Brake
Pedal and Adjustable
Throttle . . . . . . . . . . . . . . . . . . . . . . 9-22
Brake System Warning Light . . . 5-23
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-26 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-44
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-45
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-27
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-45
System Messages . . . . . . . . . . . . 5-38
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
Break-In, New Vehicle . . . . . . . . . 9-21
Bulb Replacement . . . . . . . . . . . . 10-39
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-6
Halogen Bulbs . . . . . . . . . . . . . . 10-37
Headlamp Aiming . . . . . . . . . . . 10-35
Headlamps . . . . . . . . . . . . . . . . . 10-37
License Plate Lamps . . . . . . . 10-38
Taillamps, Turn Signal,Stoplamps, and
Back-up Lamps . . . . . . . . . . . 10-37
Buying New Tires . . . . . . . . . . . . . 10-64
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-6
California Fuel Requirements . . . . . . . . . . . 9-62
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-3
Camera, Rear Vision . . . . . . . . . . 9-57
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-30
Liftgate . . . . . . . . . . . . . . . . . . 2-9, 2-10
Winter Driving . . . . . . . . . . . . . . . . 9-13
Cargo
Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Cautions, Danger, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD Player . . . . . . . . . . . . . . . . . . . . . 7-14
CD/DVD Player . . . . . . . . . . . . . . . . 7-19
Center Console Storage . . . . . . . . 4-2
Center Seat . . . . . . . . . . . . . . . . . . . . 3-4

Black plate (11,1)GMC Yukon/Yukon XL Owner Manual - 2012
INDEX i-11
RoofSunroof . . . . . . . . . . . . . . . . . . . . . . . 2-22
Roof Rack System . . . . . . . . . . . . . . 4-3
Rotation, Tires . . . . . . . . . . . . . . . . 10-62
Routing, Engine Drive Belt . . . . . 12-4
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . 9-30
S
Safety Belts . . . . . . . . . . . . . . . . . . . 3-20
Care . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
Extender . . . . . . . . . . . . . . . . . . . . . . 3-28
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . 3-21
Lap Belt . . . . . . . . . . . . . . . . . . . . . . 3-28
Lap-Shoulder Belt . . . . . . . . . . . . 3-22
Reminders . . . . . . . . . . . . . . . . . . . . 5-17
Replacing after a Crash . . . . . . 3-29
Use During Pregnancy . . . . . . . . 3-27
Safety Defects Reporting Canadian Government . . . . . . 13-13
General Motors . . . . . . . . . . . . . 13-14
U.S. Government . . . . . . . . . . . 13-13 Safety Locks . . . . . . . . . . . . . . . . . . . . 2-8
Safety System Check . . . . . . . . . . 3-29
Satellite Radio . . . . . . . . . . . . . . . . . . 7-9
Scheduling Appointments . . . . . . 13-7
Seats
Adjustment, Front . . . . . . . . . . . . . . 3-3
Center Seat . . . . . . . . . . . . . . . . . . . 3-4
Head Restraints . . . . . . . . . . . . . . . 3-2
Heated and Ventilated Front . . . 3-9
Heated, Rear . . . . . . . . . . . . . . . . . 3-10
Lumbar Adjustment, Front . . . . . 3-4
Memory . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Power Adjustment, Front . . . . . . 3-4
Reclining Seatbacks . . . . . . . . . . . 3-5
Second Row . . . . . . . . . . . . . . . . . . 3-11
Third Row Seat . . . . . . . . . . . . . . . 3-16
Second Row Seats . . . . . . . . . . . . 3-11
Secondary Latch System . . . . . 10-84
Securing Child Restraints . . . . . . . . . . . . . . 3-60, 3-63
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 2-14
Security, OnStar
®. . . . . . . . . . . . . . 14-2 Service
Accessories and
Modifications . . . . . . . . . . . . . . . . 10-3
Doing Your Own Work . . . . . . . . 10-4
Engine Soon Light . . . . . . . . . . . . 5-21
Maintenance Records . . . . . . .11-14
Maintenance, General Information . . . . . . . . . . . . . . . . . . 11-1
Parts Identification Label . . . . . 12-1
Publications Ordering Information . . . . . . . . . . . . . . . . 13-12
Scheduling Appointments . . . . . 13-7
Servicing the Airbag . . . . . . . . . . . 3-42
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . 10-32
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 9-27
Out of Park . . . . . . . . . . . . . . . . . . . 9-28
Side Blind Zone Alert . . . . . . . . . . 9-54
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 6-6
Snow Plow . . . . . . . . . . . . . . . . . . . . 9-86

Black plate (13,1)GMC Yukon/Yukon XL Owner Manual - 2012
INDEX i-13
Tires (cont'd)Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-68
Wheel Replacement . . . . . . . . 10-68
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . 10-63
Tow/Haul Mode . . . . . . . . . . . . . . . . 9-36
Tow/Haul Mode Light . . . . . . . . . . 5-25
Towing Driving Characteristics . . . . . . . . 9-68
Equipment . . . . . . . . . . . . . . . . . . . . 9-76
General Information . . . . . . . . . . 9-67
Recreational Vehicle . . . . . . . . 10-93
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-72
Trailer Sway Control (TSC) . . . 9-86
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-93
Traction Control System (TCS)/
StabiliTrak
®Light . . . . . . . . . . . . 5-26 Trailer
Sway Control (TSC) . . . . . . . . . . 9-86
Tow Mirrors . . . . . . . . . . . . . . . . . . . 2-17
Trailer Towing . . . . . . . . . . . . . . . . . 9-72
Transfer Case . . . . . . . . . . . 9-37, 9-42
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 9-31
Fluid, Automatic . . . . . . . . . . . . 10-12
Messages . . . . . . . . . . . . . . . . . . . . 5-45
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . 13-8
Trip Odometer . . . . . . . . . . . . . . . . . 5-13
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Turn Signal Bulb Replacement . . . . . . . . . . 10-37
U
Ultrasonic Parking Assist . . . . . . 9-53
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 10-66
Universal Remote System . . . . . 5-55 Operation . . . . . . . . . . . . . . . . . . . . . 5-60
Programming . . . . . . . . . . . . . . . . . 5-55
Using This Manual . . . . . . . . . . . . . . . . iv
V
Vehicle Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-3
IdentificationNumber (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-16
Messages . . . . . . . . . . . . . . . . . . . . 5-37
Personalization . . . . . . . . . . . . . . . 5-47
Reminder Messages . . . . . . . . . . 5-46