2011 GMC YUKON XL warning light

Black plate (25,1)GMC Yukon/Yukon XL Owner Manual - 2011
Instruments and Controls 5-25
If the regular brake system warning
light is not on, the vehicle still has
brakes, but not antilock brakes.
If the regular brake system warning
light is also on, the vehicle does
not have antilock brakes and there
is a problem with the regular brakes.
SeeBrake System Warning Light on
page 5‑23.
For vehicles with a Driver
Information Center (DIC), see
Brake System Messages on
page 5‑38 for all brake related
DIC messages.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.Tow/Haul Mode Light
For vehicles with the Tow/Haul
Mode feature, this light comes on
when the Tow/Haul Mode has been
activated.
For more information, see Tow/Haul
Mode on page 9‑42.
StabiliTrak®Indicator
Light
For vehicles with the StabiliTrak
system, this light comes on briefly
while starting the engine.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
If the light comes on and stays
on while driving, there could be a
problem with the StabiliTrak system
and the vehicle might need service.
When this warning light is on, the
StabiliTrak system is off and does
not limit wheel spin.

Black plate (26,1)GMC Yukon/Yukon XL Owner Manual - 2011
5-26 Instruments and Controls
The light flashes if the system is
active and is working to assist the
driver with directional control of the
vehicle in difficult driving conditions.
SeeStabiliTrak
®System on
page 9‑52 for more information.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine
is started. It provides information
about tire pressures and the TPMS. When the Light is On Steady
This indicates that one or more
of the tires are significantly
underinflated.
A tire pressure message can
accompany the light. See
Tire
Messages on page 5‑45 for more
information. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the Tire
and Loading Information label. See
Tire Pressure on page 10‑56 for
more information.
When the Light Flashes First and
Then is On Steady
This indicates that there may be a
problem with the TPMS. The light
flashes for about a minute and
stays on steady for the remainder
of the ignition cycle. This sequence
repeats with every ignition cycle.
See Tire Pressure Monitor
Operation on page 10‑59 for more
information.
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Notice: Lack of proper engine
oil maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule for changing engine oil.

Black plate (27,1)GMC Yukon/Yukon XL Owner Manual - 2011
Instruments and Controls 5-27
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally the indicator light then
goes off.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and it might
have some other system problem.
If the vehicle is a hybrid, see the
hybrid supplement for more
information.Low Fuel Warning Light
This light, under the fuel gauge,
comes on briefly while the engine is
being started.
This light and a chime comes on
when the fuel tank is low on fuel.
The Driver Information Center also
displays a“FUEL LEVEL LOW”
message. See Fuel System
Messages on page 5‑42 for more
information. When fuel is added this
light and message should go off. If it
does not, have the vehicle serviced
by your dealer.
Security Light
For information regarding this light
and the vehicle's security system,
see Anti-Theft Alarm System on
page 2‑14.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer on page 6‑2 for more
information.

Black plate (28,1)GMC Yukon/Yukon XL Owner Manual - 2011
5-28 Instruments and Controls
Front Fog Lamp Light
The fog lamp lights come on when
the fog lamps are in use.
The lights go out when the fog
lamps are turned off. SeeFog
Lamps on page 6‑6 for more
information.
Cruise Control Light
The cruise control light comes on
whenever the cruise control is set.
The light goes out when the cruise
control is turned off. See Cruise
Control on page 9‑56 for more
information.
Information Displays
Driver Information
Center (DIC)
Your vehicle has a Driver
Information Center (DIC).
The DIC displays information
about your vehicle. It also displays
warning messages if a system
problem is detected.
All messages will appear in the
DIC display located below the
tachometer in the instrument panel
cluster.
The DIC comes on when the ignition
is on. After a short delay, the DIC
will display the information that was
last displayed before the engine
was turned off.

Black plate (38,1)GMC Yukon/Yukon XL Owner Manual - 2011
5-38 Instruments and Controls
Battery Voltage and
Charging Messages
BATTERY LOW START
VEHICLE
When the vehicle’s battery is
severely discharged, this message
will display and four chimes
will sound. Start the vehicle
immediately. If the vehicle is not
started and the battery continues
to discharge, the climate controls,
heated seats, and audio systems
will shut off and the vehicle may
require a jump start. These systems
will function again after the vehicle
is started.
SERVICE BATTERY
CHARGING SYSTEM
On some vehicles, this message
displays if there is a problem
with the battery charging system.
Under certain conditions, the
charging system light may also turn
on in the instrument panel cluster. See
Charging System Light on
page 5‑20. Driving with this problem
could drain the battery. Turn off all
unnecessary accessories. Have the
electrical system checked as soon
as possible. See your dealer.
Brake System Messages
SERVICE BRAKE SYSTEM
This message displays along with
the brake system warning light if
there is a problem with the brake
system. See Brake System Warning
Light on page 5‑23. If this message
appears, stop as soon as possible
and turn off the vehicle. Restart the
vehicle and check for the message
on the DIC display. If the message
is still displayed or appears again
when you begin driving, the brake
system needs service as soon as
possible. See your dealer.
SERVICE BRAKES SOON
This message displays if there is a
problem with the brake system.
If this message appears, stop as
soon as possible and turn off the
vehicle. Restart the vehicle and
check for the message on the
DIC display. If the message is still
displayed or appears again when
you begin driving, the brake system
needs service. See your dealer.
SERVICE TRAILER BRAKE
SYSTEM
On vehicles with the Integrated
Trailer Brake Control (ITBC) system,
this message displays and a chime
sounds when there is a problem
with the ITBC system.
When this message displays, power
is no longer available to the trailer
brakes.

Black plate (44,1)GMC Yukon/Yukon XL Owner Manual - 2011
5-44 Instruments and Controls
SERVICE SUSPENSION
SYSTEM
If your vehicle has the Autoride®
suspension system, this message
displays when the Autoride
suspension system is not operating
properly. Have your vehicle serviced
by your dealer.
SERVICE TRACTION
CONTROL
If your vehicle has StabiliTrak, this
message displays when there is a
problem with the Traction Control
System (TCS). When this message
displays, the system will not limit
wheel spin. Adjust your driving
accordingly. See your dealer for
service. SeeStabiliTrak
®System on
page 9‑52 for more information.
STABILITRAK OFF
If your vehicle has StabiliTrak, this
message displays when you turn
off StabiliTrak, or when the stability
control has been automatically
disabled. To limit wheel spin and realize the full benefits of the
stability enhancement system, you
should normally leave StabiliTrak
on. However, you should turn
StabiliTrak off if your vehicle gets
stuck in sand, mud, ice, or snow
and you want to rock your vehicle
to attempt to free it, or if you
are driving in extreme off-road
conditions and require more wheel
spin. See
If the Vehicle is Stuck on
page 9‑22. To turn the StabiliTrak
system on or off, see StabiliTrak
®
System on page 9‑52.
There are several conditions that
can cause this message to appear.
.One condition is overheating,
which could occur if StabiliTrak
activates continuously for an
extended period of time.
.The message also displays if
the brake system warning light is
on. SeeBrake System Warning
Light on page 5‑23.
.The message could display if the
stability system takes longer
than usual to complete its
diagnostic checks due to driving
conditions.
.The message displays if an
engine or vehicle related
problem has been detected
and the vehicle needs service.
See your dealer.
.The message also displays
if the vehicle is shifted into
4LO (Two Speed Transfer
Case Only).
The message turns off as soon
as the conditions that caused the
message to be displayed are no
longer present.
TRACTION CONTROL OFF
If your vehicle has StabiliTrak, this
message displays when the Traction
Control System (TCS) is turned off.
Adjust your driving accordingly. See
StabiliTrak
®System on page 9‑52
for more information.

Black plate (45,1)GMC Yukon/Yukon XL Owner Manual - 2011
Instruments and Controls 5-45
Airbag System Messages
SERVICE AIR BAG
This message displays if there is a
problem with the airbag system.
Have your dealer inspect the
system for problems. SeeAirbag
Readiness Light on page 5‑18 and
Airbag System on page 3‑39 for
more information.
Anti-Theft Alarm System
Messages
SERVICE THEFT DETERRENT
SYSTEM
This message displays when there
is a problem with the theft-deterrent
system. The vehicle may or may not
restart so you may want to take the
vehicle to your dealer before turning
off the engine. See Immobilizer
Operation on page 2‑16 for more
information.
Tire Messages
SERVICE TIRE MONITOR
SYSTEM
On vehicles with the Tire
Pressure Monitor System (TPMS),
this message displays if a part on
the TPMS is not working properly.
The tire pressure light also flashes
and then remains on during the
same ignition cycle. See Tire
Pressure Light on page 5‑26.
Several conditions may cause
this message to appear. See Tire
Pressure Monitor Operation on
page 10‑59 for more information.
If the warning comes on and stays
on, there may be a problem with the
TPMS. See your dealer.
TIRE LEARNING ACTIVE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays when the TPMS
is re-learning the tire positions on
your vehicle. The tire positions must
be re-learned after rotating the tires
or after replacing a tire or sensor. See
Tire Inspection on page 10‑62,
Tire Rotation on page 10‑62, Tire
Pressure Monitor System on
page 10‑58, and Tire Pressure on
page 10‑56 for more information.
TIRE LOW ADD AIR TO TIRE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires needs to be checked.
This message also displays LEFT
FRT (left front), RIGHT FRT
(right front), LEFT RR (left rear),
or RIGHT RR (right rear) to
indicate the location of the low
tire. The low tire pressure warning
light will also come on. See Tire
Pressure Light on page 5‑26.
You can receive more than one
tire pressure message at a time.
To read the other messages that
may have been sent at the same
time, press the set/reset button
or the trip odometer reset stem. If a
tire pressure message appears on
the DIC, stop as soon as you can.

Black plate (1,1)GMC Yukon/Yukon XL Owner Manual - 2011
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-2
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . 6-3
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 6-3
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 6-4
Hazard Warning Flashers . . . . . 6-5
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 6-5
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-6
Auxiliary Roof-Mounted Lamp . . . . . . . . . 6-6
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . 6-7
Dome Lamps . . . . . . . . . . . . . . . . . 6-8
Reading Lamps . . . . . . . . . . . . . . . 6-8
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . 6-9
Exit Lighting . . . . . . . . . . . . . . . . . . . 6-9
Battery Load Management . . . . 6-9
Battery Power Protection . . . . 6-10
Exterior Lighting
Exterior Lamp Controls
The exterior lamps control is located
on the instrument panel to the left of
the steering wheel.
It controls the following systems:
.Headlamps
.Taillamps
.Parking Lamps
.License Plate Lamps
.Instrument Panel Lights