Page 33 of 528

Black plate (27,1)GMC Yukon/Yukon XL Owner Manual - 2011
In Brief 1-27
During cooler conditions, the low tire
pressure warning light may appear
when the vehicle is first started and
then turn off. This may be an early
indicator that the tire pressures are
getting low and the tires need to be
inflated to the proper pressure.
The TPMS does not replace normal
monthly tire maintenance. It is the
driver’s responsibility to maintain
correct tire pressures.
See Tire Pressure Monitor System
on page 10‑58.
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and, on most vehicles, displays a
DIC message when it is necessary
to change the engine oil and filter.
The oil life system should be reset
to 100% only following an oil
change. Resetting the Oil Life System
To reset the Engine Oil Life System
on most vehicles:
1. Display OIL LIFE REMAINING
on the DIC. If the vehicle does
not have DIC buttons, the
vehicle must be in P (Park) to
access this display.
2. Press and hold the SET/ RESET button on the DIC,
or the trip odometer reset
stem if the vehicle does not
have DIC buttons, for more than
five seconds. The oil life will
change to 100%.
On all vehicles, the Engine Oil Life
System can be reset as follows:
1. Turn the ignition to ON/RUN with the engine off.
2. Fully press the accelerator pedal slowly three times within
five seconds. 3. Display OIL LIFE REMAINING
on the DIC. If the display
shows 100%, the system is
reset.
See Engine Oil Life System on
page 10‑10.
Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge
and a yellow fuel cap can use either
unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85).
See Fuel E85 (85% Ethanol) on
page 9‑70. For all other vehicles,
use only the unleaded gasoline
described under Recommended
Fuel on page 9‑68.
Page 34 of 528

Black plate (28,1)GMC Yukon/Yukon XL Owner Manual - 2011
1-28 In Brief
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Assistance
Program
U.S.:1-800-GMC-8782
(1‐800‐462-8782)
TTY Users: 1-888-889-2438
Canada: 1-800-268-6800
As the owner of a new GMC, you
are automatically enrolled in the
Roadside Assistance program.
See Roadside Assistance Program
on page 13‑6 for more information. Roadside Assistance and OnStar
If you have an active OnStar
subscription, press the
Qbutton
and the current GPS location will
be sent to an OnStar advisor who
will assess your problem, contact
Roadside Assistance, and relay
your exact location to get the help
you need.
Online Owner Center
The Online Owner Center is a
complimentary service that includes
online service reminders, vehicle
maintenance tips, online owner
manual, special privileges,
and more.
Sign up today at:
www.gmcownercenter.com (U.S.)
or www.gm.ca (Canada).
Page 35 of 528

Black plate (29,1)GMC Yukon/Yukon XL Owner Manual - 2011
In Brief 1-29
OnStar®
OnStar uses several innovative
technologies and live Advisors to
provide a wide range of safety,
security, navigation, diagnostics,
and calling services.
Automatic Crash Response
In a crash, built‐in sensors can
automatically alert an OnStar
Advisor who is immediately
connected to the vehicle to see if
you need help.
How OnStar Service Works
Q:This blue button connects
you to a specially trained OnStar
Advisor to verify your account
information and to answer
questions.
]: Push this red emergency
button to get priority help from
specially trained OnStar Emergency
Advisors.
X: Push this button for hands‐free,
voice‐activated calling and to give
voice commands for Turn‐by‐Turn
Navigation.
Crisis Assist, Stolen Vehicle
Assistance, Vehicle Diagnostics,
Remote Door Unlock, Roadside
Assistance, Turn‐by‐Turn
Navigation, and Hands‐Free Calling
are available on most vehicles.
Not all OnStar services are
available on all vehicles. For more
information see the OnStar Owner's
Guide or visit www.onstar.com
(U.S.) or www.onstar.ca (Canada),
contact OnStar at 1-888-4-ONSTAR
(1‐888‐466‐7827) or TTY
1‐877‐248‐2080, or push
Qto
speak with an OnStar Advisor
24 hours a day, 7 days a week. For a full description of OnStar
services and system limitations, see
the OnStar Owner's Guide in the
glove box.
OnStar service is subject to the
OnStar Terms and Conditions
included in the OnStar Glove
Box Kit.
OnStar service requires wireless
communication networks and the
Global Positioning System (GPS)
satellite network. Not all OnStar
services are available everywhere
or on all vehicles at all times.
OnStar service can’t 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 service.
Page 36 of 528

Black plate (30,1)GMC Yukon/Yukon XL Owner Manual - 2011
1-30 In Brief
Service involving location
information about your vehicle
can’t work unless GPS signals
are available, unobstructed, and
compatible with the OnStar
hardware. The vehicle has to have
a working electrical system and
adequate battery power for the
OnStar equipment to operate.
OnStar service may not work if the
OnStar equipment isn’t properly
installed or you haven’t maintained
it and your vehicle is in good
working order and in compliance
with all government regulations.
If you try to add, connect, or modify
any equipment or software in your
vehicle, OnStar service may not
work. Other problems OnStar can’t
control may prevent service to you,
such as hills, tall buildings, tunnels,
weather, electrical system design
and architecture of your vehicle,
damage to important parts of your
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-210/220/310.
OnStar Steering Wheel
Controls
This vehicle may have ab g/c xTalk/Mute button
that can be used to interact with
OnStar Hands-Free Calling. See
Steering Wheel Controls on
page 5‑2 for more information.
On some vehicles, the mute button
can be used to dial numbers into
voice mail systems, or to dial phone
extensions. See the OnStar Owner's
Guide for more information.
Your Responsibility
Increase the volume of the radio
if the OnStar Advisor cannot be
heard. If the light next to the OnStar
buttons is red, the system may
not be functioning properly.
Push
Qand request a vehicle
diagnostic check. If the light
appears clear (no light is
appearing), your OnStar
subscription has expired and all
services have been deactivated.
Push
Qto confirm that the OnStar
equipment is active.
OnStar®
If the vehicle is equipped with an
active OnStar system, that system
may also record data in crash or
near crash-like situations. The
OnStar Terms and Conditions
provides information on data
collection and use and is available
in the OnStar Glove Box Kit,
at www.onstar.com (U.S.) or
www.onstar.ca (Canada), or by
pushing
Qand speaking to an
Advisor.
Page 37 of 528

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual - 2011
Keys, Doors and Windows 2-1
Keys, Doors and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . 2-5
Door Locks . . . . . . . . . . . . . . . . . . . 2-8
Power Door Locks . . . . . . . . . . . . 2-8
Delayed Locking . . . . . . . . . . . . . . 2-9
Automatic Door Locks . . . . . . . . . 2-9
Lockout Protection . . . . . . . . . . . . 2-9
Safety Locks . . . . . . . . . . . . . . . . . . 2-9
Doors
Liftgate (Manual) . . . . . . . . . . . . . 2-10
Liftgate (Power) . . . . . . . . . . . . . . 2-11
Power Assist Steps . . . . . . . . . . 2-14
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-14
Anti-Theft Alarm System . . . . . 2-14
Immobilizer . . . . . . . . . . . . . . . . . . 2-15
Immobilizer Operation . . . . . . . 2-16
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-17
Manual Mirrors . . . . . . . . . . . . . . . 2-17
Trailer-Tow Mirrors . . . . . . . . . . . 2-17
Power Mirrors . . . . . . . . . . . . . . . . 2-18
Folding Mirrors . . . . . . . . . . . . . . . 2-19
Heated Mirrors . . . . . . . . . . . . . . . 2-19
Automatic Dimming Mirror . . . 2-20
Park Tilt Mirrors . . . . . . . . . . . . . . 2-20
Interior Mirrors
Manual Rearview Mirror . . . . . . 2-20
Automatic Dimming Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-20
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-21
Power Windows . . . . . . . . . . . . . 2-22
Sun Visors . . . . . . . . . . . . . . . . . . . 2-23
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-23
Page 38 of 528

Black plate (2,1)GMC Yukon/Yukon XL Owner Manual - 2011
2-2 Keys, Doors and Windows
Keys and Locks
Keys
{WARNING
Leaving children in a vehicle with
the ignition key is dangerous for
many reasons. Children or others
could be badly injured or even
killed. They could operate the
power windows or other controls
or even make the vehicle move.
The windows will function with the
keys in the ignition and children
could be seriously injured or killed
if caught in the path of a closing
window. Do not leave the keys in
a vehicle with children.
The key is used for the ignition and
all door locks.
The key has a bar-coded key tag
that the dealer or qualified locksmith
can use to make new keys. Store
this information in a safe place, not
in the vehicle.
See your dealer if a replacement
key or additional key is needed.
Notice:If the keys get locked in
the vehicle, it may have to be
damaged to get them out. Always
carry a spare key. If you are locked out of the vehicle,
call the Roadside Assistance
Center. See
Roadside Assistance
Program on page 13‑6.
Remote Keyless Entry
(RKE) System
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-210/220/310.
If there is a decrease in the RKE
operating range:
.Check the distance. The
transmitter may be too far
from the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
Page 39 of 528

Black plate (3,1)GMC Yukon/Yukon XL Owner Manual - 2011
Keys, Doors and Windows 2-3
.Check the transmitter's battery.
See“Battery Replacement” later
in this section.
.If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.
Remote Keyless Entry
(RKE) System Operation
The Remote Keyless Entry (RKE)
transmitter functions work up to
60 m (195 ft) away from the vehicle.
There are other conditions which
can affect the performance of the
transmitter. See Remote Keyless
Entry (RKE) System on page 2‑2.
With Remote Start and Liftglass
With Remote Start and Power
Liftgate and Liftglass The following functions may be
available if your vehicle has the
RKE system:
/(Remote Vehicle Start):
For
vehicles with this feature, press to
start the engine from outside the
vehicle using the RKE transmitter.
See Remote Vehicle Start on
page 2‑5 for additional information.
Q(Lock):Press to lock all the
doors.
If enabled through the Driver
Information Center (DIC), the turn
signal lamps flash once to indicate
locking has occurred. If enabled
through the DIC, the horn chirps
when the lock button is pressed
again within three seconds. See
Vehicle Personalization (With DIC
Buttons) on page 5‑47 for additional
information.
Pressing
Qarms the content
theft‐deterrent system. See
Anti-Theft Alarm System on
page 2‑14.
Page 40 of 528

Black plate (4,1)GMC Yukon/Yukon XL Owner Manual - 2011
2-4 Keys, Doors and Windows
K(Unlock):Press once to unlock
only the driver door. If
Kis pressed
again within three seconds, all
remaining doors unlock. The interior
lamps may come on and stay on for
20 seconds or until the ignition is
turned on.
If enabled through the DIC, the turn
signal lamps flash twice to indicate
unlocking has occurred. See Vehicle
Personalization (With DIC Buttons)
on page 5‑47. If enabled through
the DIC, the exterior lights turn on
briefly if it is dark enough outside.
See “Approach Lighting” under
Vehicle Personalization (With DIC
Buttons) on page 5‑47.
Pressing
Kon the RKE transmitter
disarms the content theft‐deterrent
system. See Anti-Theft Alarm
System on page 2‑14.
m(Liftglass): Press and hold to
unlock the liftglass.
&(Power Liftgate): Press and
hold to open and close the liftgate.
The taillamps flash and a chime
sounds to indicate when the liftgate
is opening and closing.
L(Vehicle Locator/Panic
Alarm): Press and release to
locate the vehicle. The turn signal
lamps flash and the horn sounds
three times.
Press and hold
Lfor more than
two seconds to activate the panic
alarm. The turn signal lamps flash
and the horn sounds repeatedly for
30 seconds. The alarm turns off
when the ignition is moved to
ON/RUN or
Lis pressed again.
The ignition must be in LOCK/OFF
for the panic alarm to work.
The vehicle comes with two
transmitters. Each transmitter will
have a number on it, “1”or“2”.
These numbers correspond to
the driver of the vehicle. For
example, the memory seat position for driver 1 will be recalled when
using the transmitter labeled
“1”,
if enabled through the DIC.
See “Memory Seat, Mirrors,
and Pedals” underPower Seat
Adjustment on page 3‑4 andVehicle
Personalization (With DIC Buttons)
on page 5‑47 for more information.
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to this vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer.
When the replacement transmitter
is programmed to this vehicle, all
remaining transmitters must also
be reprogrammed. Any lost or
stolen transmitters will no longer
work once the new transmitter is
programmed. The vehicle can have
a maximum of eight transmitters
programmed to it. See your dealer
to program transmitters to the
vehicle.