automatic transmission GMC YUKON 2012 Owner's Manual

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual - 2012
2012 GMC Yukon/Yukon XL Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-19
Performance and Maintenance . . . . . . . . . . . . . . . . 1-25
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Vehicle Security . . . . . . . . . . . . . . 2-14
Exterior Mirrors . . . . . . . . . . . . . . . 2-17
Interior Mirrors . . . . . . . . . . . . . . . . 2-20
Windows . . . . . . . . . . . . . . . . . . . . . 2-20
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . 3-10 Safety Belts . . . . . . . . . . . . . . . . . . 3-20
Airbag System . . . . . . . . . . . . . . . . 3-30
Child Restraints . . . . . . . . . . . . . . 3-45
Storage . . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-2
Roof Rack System . . . . . . . . . . . . . 4-3
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 5-11
Information Displays . . . . . . . . . . 5-29
Vehicle Messages . . . . . . . . . . . . 5-37
Vehicle Personalization . . . . . . . 5-47
Universal Remote System . . . . 5-55
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-8
Lighting Features . . . . . . . . . . . . . . 6-9 Infotainment System
. . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Audio Players . . . . . . . . . . . . . . . . 7-14
Rear Seat Infotainment . . . . . . . 7-34
Phone . . . . . . . . . . . . . . . . . . . . . . . . 7-47
Trademarks and License Agreements . . . . . . . . . . . . . . . . . 7-54
Climate Controls . . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-13
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-21
Engine Exhaust . . . . . . . . . . . . . . 9-30
Automatic Transmission . . . . . . 9-31
Drive Systems . . . . . . . . . . . . . . . . 9-37
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-44
Ride Control Systems . . . . . . . . 9-46
Cruise Control . . . . . . . . . . . . . . . . 9-51

Black plate (3,1)GMC Yukon/Yukon XL Owner Manual - 2012
In Brief 1-3
A.Air Vents on page 8‑13.
B. Turn and Lane‐Change Lever. See Turn and Lane-Change
Signals on page 6‑6.
Windshield Wiper/Washer on
page 5‑5.
Rear Window Wiper/Washer on
page 5‑5.
C. Instrument Cluster on
page 5‑12.
D. Hazard Warning Flashers on
page 6‑5 (Out of View).
E. Shift Lever. See Automatic
Transmission on page 9‑31.
F. Manual Mode on page 9‑35
(If Equipped).
Tow/Haul Mode on page 9‑36
(If Equipped).
G. Driver Information Center (DIC) Buttons. See Driver Information
Center (DIC) on page 5‑29.
H. Infotainment on page 7‑1. I.
Exterior Lamp Controls on
page 6‑1.
J. Dome Lamps on page 6‑8.
Instrument Panel Illumination
Control on page 6‑8.
Fog Lamps on page 6‑6
(If Equipped).
K. Hood Release. See Hood on
page 10‑5.
L. Integrated Trailer Brake Controller (If Equipped).
See Towing Equipment on
page 9‑76.
M. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp on page 5‑21.
N. Automatic Transfer Case Control (If Equipped). See
Four-Wheel Drive (Two Speed
Automatic Transfer Case) on
page 9‑37 orFour-Wheel Drive
(Single Speed Automatic
Transfer Case) on page 9‑42. O.
Cruise Control on page 9‑51.
P. Steering Wheel Adjustment on
page 5‑2.
Q. Horn on page 5‑4.
R. Steering Wheel Controls on
page 5‑2.
S. Climate Control Systems on
page 8‑1 (If Equipped).
Dual Automatic Climate Control
System on page 8‑4
(If Equipped).
T. Power Outlets on page 5‑9.
U. StabiliTrak
®System on
page 9‑46 (If Equipped).
Pedal Adjust Button (If
Equipped). See Adjustable
Throttle and Brake Pedal on
page 9‑22.
Ultrasonic Parking Assist on
page 9‑53 (If Equipped).
Power Assist Steps on
page 2‑13 (If Equipped).

Black plate (17,1)GMC Yukon/Yukon XL Owner Manual - 2012
In Brief 1-17
Dual Automatic Climate Control System
A. Fan Control
B. AUTO (Automatic Operation)
C. Defrost
D. Recirculation
E. REAR (Rear Climate Control)
F. Air Delivery Mode Control
G. Driver Temperature Control
H. Display
I. Power Button
J. Rear Window Defogger K. Air Conditioning
L. PASS
M. Passenger Temperature Control
See
Dual Automatic Climate Control
System on page 8‑4 (If Equipped) .
For vehicles with rear heating and
air conditioning controls, see Rear
Climate Control System (Rear
Climate Control Only) on page 8‑10
or Rear Climate Control System
(Rear Climate with Rear Seat Audio)
on page 8‑11.
Transmission
Range Selection Mode
Base Trim Shown (Uplevel Similar)
The Range Selection Mode switch
is located on the shift lever.
1. To enable the Range Selection feature, move the column shift
lever to the M (Manual) position.
The current range will appear
next to the M. This is the highest
attainable range with all lower
gears accessible. As an
example, when 5 (Fifth) gear is
selected, 1 (First) through
5 (Fifth) gears are available.

Black plate (12,1)GMC Yukon/Yukon XL Owner Manual - 2012
2-12 Keys, Doors, and Windows
If the transmission is shifted out of
P (Park) while the power function is
in progress, the liftgate power
function will continue to completion.
If the transmission is shifted out of
P (Park) and the vehicle accelerates
before the power liftgate latches
closed, the liftgate may reverse to
the open position. Cargo could fall
out of the vehicle. Always make
sure the power liftgate is closed and
latched before you drive away.
If you power open the liftgate and
the liftgate support struts have lost
pressure, the lamps will flash and a
chime will sound. The liftgate will
stay open temporarily, then slowly
close. See your dealer for service
before using the liftgate.Obstacle Detection Features
If the liftgate encounters an obstacle
during a power open or close cycle,
a warning chime will sound and the
liftgate will automatically reverse
direction to the full closed or open
position. After removing the
obstruction, the power liftgate
operation can be used again.
If the liftgate encounters multiple
obstacles on the same power cycle,
the power function will deactivate,
and you must manually open or
close the liftgate. The REAR
ACCESS OPEN warning message
in the Driver Information Center
(DIC) will indicate that the liftgate
is open. After removing the
obstructions, manually open the
liftgate to the full open position or
close the liftgate to the fully closed
and latched position. The liftgate will
now resume normal power
operation.Pinch sensors are located on the
sides of the liftgate. If an object is
caught between the liftgate and the
body and presses against this
sensor, the liftgate will reverse
direction and open fully. The liftgate
will remain open until it is activated
again or closed manually. Do not
force the liftgate open or closed
during a power cycle.
Manual Operation of Power
Liftgate
To change the liftgate to manual
operation, press the switch on the
overhead console to the OFF
position.
With the power liftgate disabled and
all of the doors unlocked, the liftgate
can be manually opened and
closed.

Black plate (14,1)GMC Yukon/Yukon XL Owner Manual - 2012
3-14 Seats and Restraints
60/40 Split-Bench Seat Shown,Bucket Seat Similar
2. Lift the lever, on the bottom rear of the second row seat on the
inboard side, to release the
seatback. The seatback will fold
forward.
3. Lift the same lever again to release the rear of the seat from
the floor. The seat will tumble
forward.
Automatic Fold and Tumble
Feature
The transmission must be in
P (Park) for this feature to work.
{WARNING
Automatically folding and
tumbling the seat when someone
is sitting in the seat, could cause
injury to the person sitting there.
Always make sure there is no one
sitting in the seat before pressing
the automatic seat release button. Folding and Tumbling the Second
Row Seat from the Third Row Seat
or Outside the Vehicle
{WARNING
Using the third row seating
position while the second row is
folded, or folded and tumbled,
could cause injury in a sudden
stop or crash. Be sure to return
the seat to the passenger seating
position. Push and pull on the
seat to make sure it is locked into
place.

Black plate (32,1)GMC Yukon/Yukon XL Owner Manual - 2012
5-32 Instruments and Controls
To stop the timer, press the set/reset
button briefly while TIMER is
displayed.
To reset the timer to zero, press and
hold the set/reset button while
TIMER is displayed.
Transmission Temperature
Press the trip/fuel button until
TRANS TEMP displays. This
display shows the temperature of
the automatic transmission fluid in
either degrees Celsius (°C) or
degrees Fahrenheit (°F).
Instantaneous Economy and
Active Fuel Management™
Indicator
If your vehicle has this display,
press the trip/fuel button until INST
ECON V8 displays. This display
shows the current fuel economy at a
particular moment and will change
frequently as driving conditions
change. This display shows theinstantaneous fuel economy in liters
per 100 kilometers (L/100 km) or
miles per gallon (mpg). Unlike
average economy, this screen
cannot be reset.
An Active Fuel Management
indicator will display on the right
side of the DIC, while INST ECON
displays on the left side. Active Fuel
Management allows the engine to
operate on either four or eight
cylinders, depending on your driving
demands. When Active Fuel
Management is active, V4 will
display on the DIC. When Active
Fuel Management is inactive, V8
will display. See
Active Fuel
Management
®on page 9‑29 for
more information.
Blank Display
This display shows no information.
Vehicle Information Menu
Items (With DIC Buttons)
T(Vehicle Information): Press
to scroll through the following menu
items:
Oil Life
Press the vehicle information button
until OIL LIFE REMAINING
displays. This display shows an
estimate of the oil's remaining useful
life. If you see 99% OIL LIFE
REMAINING on the display, that
means 99% of the current oil life
remains. The engine oil life system
will alert you to change the oil on a
schedule consistent with your
driving conditions.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See “CHANGE ENGINE OIL SOON”
under Engine Oil Messages on
page 5‑40. You should change the
oil as soon as you can. See Engine
Oil on page 10‑8. In addition to the

Black plate (36,1)GMC Yukon/Yukon XL Owner Manual - 2012
5-36 Instruments and Controls
The trip odometer can be reset to
zero by pressing and holding the trip
odometer reset stem while the trip
odometer is displayed.
The trip odometer has a feature
called the retroactive reset. This can
be used to set the trip odometer to
the number of kilometers (miles)
driven since the ignition was last
turned on. This can be used if the
trip odometer is not reset at the
beginning of the trip.
To use the retroactive reset feature,
press and hold the trip odometer
reset stem for at least four seconds.
The trip odometer will display the
number of kilometers (km) or
miles (mi) driven since the ignition
was last turned on and the vehicle
was moving. Once the vehicle
begins moving, the trip odometer
will accumulate mileage. For
example, if the vehicle was driven
8 km (5 miles) before it is started
again, and then the retroactive reset
feature is activated, the display will
show 8 km (5 miles). As the vehiclebegins moving, the display will then
increase to 8.2 km (5.1 miles),
8.4 km (5.2 miles), etc.
Transmission Temperature
Press the trip odometer reset stem
until TRANS TEMP displays. This
display shows the temperature of
the automatic transmission fluid in
either degrees Celsius (°C) or
degrees Fahrenheit (°F).
Trailer Gain and Output
On vehicles with the Integrated
Trailer Brake Control (ITBC) system,
the trailer brake display appears in
the DIC. Press the trip odometer
reset stem until TRAILER GAIN and
OUTPUT display.
TRAILER GAIN shows the trailer
gain setting. This setting can be
adjusted from 0.0 to 10.0 with either
a trailer connected or disconnected.
To adjust this setting, see
“Integrated Trailer Brake Control
System”
underTowing Equipment
on page 9‑76 for more information. OUTPUT shows the power output to
the trailer anytime a trailer with
electric brakes is connected. Output
is displayed in 0 to 10 bars. Dashes
may appear in the OUTPUT display.
See
“Integrated Trailer Brake
Control System” underTowing
Equipment on page 9‑76 for more
information.
Speedometer
The speedometer shows how fast
the vehicle is moving in either
kilometers per hour (km/h) or miles
per hour (mph). The speedometer
cannot be reset.
Compass Zone Setting
This display allows for setting the
compass zone. See Compass on
page 5‑6 for more information.
Compass Recalibration
This display allows for calibrating
the compass. See Compass on
page 5‑6 for more information.

Black plate (3,1)GMC Yukon/Yukon XL Owner Manual - 2012
Lighting 6-3
Headlamp High/
Low-Beam Changer
5 3
(Headlamp High/Low
Beam Changer): To change the
headlamps from low to high beam,
push the lever toward the instrument
panel. To return to low-beam
headlamps, pull the multifunction
lever toward you. Then release it.
When the high beams are on, this
indicator light on the instrument
panel cluster will also be on.
Flash-to-Pass
This feature lets you use the
high-beam headlamps to signal a
driver in front of you that you want
to pass. It works even if the
headlamps are in the automatic
position.
To use it, pull the turn signal lever
toward you, then release it.
If the headlamps are in the
automatic position or on low beam,
the high-beam headlamps will turn
on. They will stay on as long as
you hold the lever toward you.
The high-beam indicator on the
instrument panel cluster will come
on. Release the lever to return to
normal operation.
Daytime Running
Lamps (DRL)
Daytime Running Lamps (DRL) can
make it easier for others to see the
front of your vehicle during the day.
Fully functional daytime running
lamps are required on all vehicles
first sold in Canada.
The DRL system comes on when
the following conditions are met:
.The ignition is on.
.The exterior lamps control is
in AUTO.
.The transmission is not in Park.
.The light sensor determines it is
daytime.
When the DRL system is on,
only the DRL lamps are on. The
taillamps, sidemarker, instrument
panel lights, and other lamps will not
be on.

Black plate (4,1)GMC Yukon/Yukon XL Owner Manual - 2012
6-4 Lighting
When it begins to get dark, the
automatic headlamp system
switches from DRL to the
headlamps.
To turn off the DRL lamps, turn the
exterior lamps control to the OFF
position and then release. For
vehicles first sold in Canada, the
transmission must be in the P (Park)
position before the DRL lamps can
be turned off.
Automatic Headlamp
System
When it is dark enough outside, the
automatic headlamp system turns
on the headlamps at the normal
brightness, along with the taillamps,
sidemarker, parking lamps, and the
instrument panel lights. The radio
lights will also be dim.To turn off the automatic headlamp
system, turn the exterior lamps
switch to the off position and then
release it. For vehicles first sold in
Canada, the transmission must be
in the P (Park) position before the
automatic headlamp system can be
turned off.
The vehicle has a light sensor
located on the top of the instrument
panel which regulates when the
automatic headlamps turn on. Do
not cover the sensor, otherwise the
headlamps will come on whenever
the ignition is on.The system may also turn on the
headlamps when driving through a
parking garage or heavy overcast
weather. This is normal.
There is a delay in the transition
between the daytime and nighttime
operation of the Daytime Running
Lamps (DRL) and the automatic
headlamp systems so that driving
under bridges or bright overhead
street lights does not affect the
system. The DRL and automatic
headlamp system are only affected
when the light sensor detects a
change in lighting lasting longer
than the delay.

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual - 2012
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 . . . . . . . . . . . . . . . . . . . . . . . 9-4
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-4
Off-Road Recovery . . . . . . . . . . . . 9-5
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Driving . . . . . . . . . . . . . . 9-6
Driving on Wet Roads . . . . . . . . 9-11
Highway Hypnosis . . . . . . . . . . . 9-12
Hill and Mountain Roads . . . . . 9-13
Winter Driving . . . . . . . . . . . . . . . 9-13
If the Vehicle Is Stuck . . . . . . . . 9-15
Vehicle Load Limits . . . . . . . . . . 9-16
Starting and Operating
New Vehicle Break-In . . . . . . . . 9-21
Adjustable Throttle and BrakePedal . . . . . . . . . . . . . . . . . . . . . . . 9-22
Ignition Positions . . . . . . . . . . . . 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 . . . . . . . . . . 9-28
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . 9-29
Active Fuel Management
®. . . 9-29
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 9-30
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . 9-30
Automatic Transmission
Automatic Transmission . . . . . 9-31
Manual Mode . . . . . . . . . . . . . . . . 9-35
Tow/Haul Mode . . . . . . . . . . . . . . 9-36
Drive Systems
Four-Wheel Drive (Two SpeedAutomatic
Transfer Case) . . . . . . . . . . . . . 9-37
Four-Wheel Drive (Single Speed Automatic
Transfer Case) . . . . . . . . . . . . . 9-42
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . 9-44
Parking Brake . . . . . . . . . . . . . . . 9-45
Brake Assist . . . . . . . . . . . . . . . . . 9-45
Hill Start Assist (HSA) . . . . . . . 9-46
Ride Control Systems
StabiliTrak®System . . . . . . . . . 9-46
Locking Rear Axle . . . . . . . . . . . 9-49
Continuous Damping Control (CDC) . . . . . . . . . . . . . . 9-50
Automatic Level Control . . . . . 9-50
Cruise Control
Cruise Control . . . . . . . . . . . . . . . 9-51
Object Detection Systems
Ultrasonic Parking Assist . . . . 9-53
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . 9-54
Rear Vision Camera (RVC) . . . . . . . . . . . . . 9-57
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . 9-61
Recommended Fuel . . . . . . . . . 9-62
Gasoline Specifications (U.S.and Canada Only) . . . . . . . . . . 9-62