2015 GMC YUKON XL brake light

Black plate (1,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
2015 GMC Yukon/Yukon XL Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-18
Performance and Maintenance . . . . . . . . . . . . . . . . 1-23
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Vehicle Security . . . . . . . . . . . . . . 2-24
Exterior Mirrors . . . . . . . . . . . . . . . 2-28
Interior Mirrors . . . . . . . . . . . . . . . . 2-31
Windows . . . . . . . . . . . . . . . . . . . . . 2-32
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Safety Belts . . . . . . . . . . . . . . . . . . 3-18
Airbag System . . . . . . . . . . . . . . . . 3-28
Child Restraints . . . . . . . . . . . . . . 3-42 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-3
Roof Rack System . . . . . . . . . . . . . 4-4
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . 5-10
Information Displays . . . . . . . . . . 5-28
Vehicle Messages . . . . . . . . . . . . 5-31
Vehicle Personalization . . . . . . . 5-44
Universal Remote System . . . . 5-52
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-6
Lighting Features . . . . . . . . . . . . . . 6-7
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance . . . . . . . . . . . . . . . . . . . 8-7
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-19
Engine Exhaust . . . . . . . . . . . . . . 9-30
Automatic Transmission . . . . . . 9-31
Drive Systems . . . . . . . . . . . . . . . . 9-37
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-41
Ride Control Systems . . . . . . . . 9-44
Cruise Control . . . . . . . . . . . . . . . . 9-47
Driver Assistance Systems . . . 9-57
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-69
Trailer Towing . . . . . . . . . . . . . . . . 9-74
Conversions and Add-Ons . . . 9-89
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-3
Headlamp Aiming . . . . . . . . . . . 10-29
Bulb Replacement . . . . . . . . . . 10-30
Electrical System . . . . . . . . . . . . 10-33
Wheels and Tires . . . . . . . . . . . 10-44

Black plate (4,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
iv Introduction
{Warning
Warning indicates a hazard that
could result in injury or death.
{Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: This symbol is shown when
you need to see your owner manual
for additional instructions or
information.
*: This symbol is shown when
you need to see a service manual
for additional instructions or
information.
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
0: Adjustable Pedals
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls
or OnStar®(if equipped)
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
(: Heated Steering Wheel
j:LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
g:Outside Power Foldaway
Mirrors
O: Power
/:Remote Vehicle Start

Black plate (1,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-5
Door Locks . . . . . . . . . . . . . . . . . . . 1-6
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Windows . . . . . . . . . . . . . . . . . . . . . . 1-7
Seat Adjustment . . . . . . . . . . . . . . 1-7
Memory Features . . . . . . . . . . . . . 1-8
Second Row Seats . . . . . . . . . . . 1-9
Third Row Seats . . . . . . . . . . . . . . 1-9
Heated and Cooled Front Seats . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Head Restraint Adjustment . . . . . . . . . . . . . . . . . 1-10
Safety Belts . . . . . . . . . . . . . . . . . . 1-10 Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . 1-10
Mirror Adjustment . . . . . . . . . . . . 1-11
Steering Wheel Adjustment . . . . . . . . . . . . . . . . . 1-12
Throttle and Brake Pedal Adjustment . . . . . . . . . . . . . . . . . 1-12
Interior Lighting . . . . . . . . . . . . . . 1-13
Exterior Lighting . . . . . . . . . . . . . 1-14
Windshield Wiper/Washer . . . . 1-15
Climate Controls . . . . . . . . . . . . . 1-16
Transmission . . . . . . . . . . . . . . . . 1-16
Four-Wheel Drive . . . . . . . . . . . . 1-17
Vehicle Features
Infotainment System . . . . . . . . . 1-18
Steering Wheel Controls . . . . . 1-18
Cruise Control . . . . . . . . . . . . . . . 1-18
Driver Information Center (DIC) . . . . . . . . . . . . . . . 1-19
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . 1-19
Lane Departure Warning (LDW) . . . . . . . . . . . . . 1-19 Lane Change Alert (LCA) . . . . 1-20
Rear Vision
Camera (RVC) . . . . . . . . . . . . . 1-20
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . 1-20
Parking Assist . . . . . . . . . . . . . . . 1-20
Active Emergency Braking System . . . . . . . . . . . . . . . . . . . . . 1-20
Power Outlets . . . . . . . . . . . . . . . 1-21
Universal Remote System . . . 1-21
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-22
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . 1-23
Tire Pressure Monitor . . . . . . . . 1-23
Engine Oil Life System . . . . . . 1-24
E85 or FlexFuel . . . . . . . . . . . . . . 1-24
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-24
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-25
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-25

Black plate (3,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
In Brief 1-3
1.Air Vents on page 8-6.
2.
gTraction Control/Electronic
Stability Control on page 9-44.
jPower Assist Steps on
page 2-23 (If Equipped).
XParking Assist Button (If
Equipped). See Assistance
Systems for Parking or Backing
on page 9-58.
@Lane Departure Warning
(LDW) on page 9-68 (If
Equipped).
0Pedal Adjust Switch (If
Equipped). See Adjustable
Throttle and Brake Pedal on
page 9-20.
3. Turn Signal Lever. See Turn and
Lane-Change Signals on
page 6-4.
Windshield Wiper/Washer on
page 5-3. 4. Favorite Switches (Out of View).
See Steering Wheel Controls on
page 5-3.
Volume Switches (Out of View).
See Steering Wheel Controls on
page 5-3.
5. Instrument Cluster on page 5-11.
6. Hazard Warning Flashers on
page 6-4.
7. Shift Lever. See Automatic
Transmission on page 9-31.
Tow/Haul Selector Button. See
Tow/Haul Mode on page 9-36.
Range Selection Mode (If
Equipped). See Manual Mode on
page 9-34.
8. Light Sensor. See Automatic
Headlamp System on page 6-3.
9. Infotainment on page 7-1.
10. Instrument Panel Illumination
Control on page 6-6. 11.
Exterior Lamp Controls on
page 6-1.
Fog Lamps on page 6-5 (If
Equipped).
12. Parking Brake on page 9-42.
13. Four-Wheel Drive on page 9-37
(If Equipped).
14. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp on page 5-20.
15. Trailer Brake Control Panel (If Equipped). See Towing
Equipment on page 9-82.
16. Cruise Control on page 9-47.
Adaptive Cruise Control on
page 9-50 (If Equipped).
Forward Collision Alert (FCA)
System on page 9-61 (If
Equipped).
Heated Steering Wheel on
page 5-3 (If Equipped).
17. Hood Release. See Hood on
page 10-4.

Black plate (13,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
In Brief 1-13
The switch used to adjust the
pedals is to the left of the steering
wheel.
Press the switch to the left to move
the pedals closer to your body.
Press the switch to the right to move
the pedals away.
SeeAdjustable Throttle and Brake
Pedal on page 9-20.
The vehicle may have a memory
function, which lets pedal settings
be saved and recalled. See Memory
Seats on page 3-5.
Interior Lighting
Dome Lamps
There are dome lamps in the
overhead console and the headliner,
if equipped.
To change the dome lamp settings,
press the following:
OFF: Turns the lamps off, even
when a door is open.
DOOR: The lamps come on
automatically when a door is
opened. ON:
Turns all dome lamps on.
Reading LampsThere are reading lamps in the
overhead console and the headliner,
if equipped. To operate, the ignition
must be in the ACC/ACCESSORY
or ON/RUN position or using
Retained Accessory Power (RAP).

Black plate (20,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
1-20 In Brief
change to amber and flash. In
addition, beeps will sound or the
driver seat will pulse.
SeeLane Departure Warning (LDW)
on page 9-68.
Lane Change Alert (LCA)
If equipped, the LCA system is a
lane-changing aid that assists
drivers with avoiding lane change
crashes that occur with vehicles in
the side blind zone (or spot) areas
or with vehicles rapidly approaching
these areas from behind. The LCA
warning display will light up in the
corresponding outside side mirror
and will flash if the turn signal is on.
The Side Blind Zone Alert (SBZA)
system is included as part of the
LCA system.
See Side Blind Zone Alert (SBZA)
on page 9-65 andLane Change
Alert (LCA) on page 9-66.
Rear Vision
Camera (RVC)
If equipped, RVC displays a view of
the area behind the vehicle on the
center stack display when the
vehicle is shifted into R (Reverse) to
aid with parking and low-speed
backing maneuvers.
See Assistance Systems for Parking
or Backing on page 9-58.
Rear Cross Traffic Alert
(RCTA) System
If equipped, the RCTA system uses
a triangle with an arrow displayed
on the RVC screen to warn of traffic
behind your vehicle that may cross
your vehicle's path while in
R (Reverse). In addition, beeps will
sound, or the driver seat will pulse.
See Assistance Systems for Parking
or Backing on page 9-58.
Parking Assist
If equipped, Rear Parking Assist
(RPA) uses sensors on the rear
bumper to assist with parking and
avoiding objects while in
R (Reverse). It operates at speeds
less than 8 km/h (5 mph). RPA may
display a warning triangle on the
Rear Vision Camera screen and a
graphic on the instrument cluster to
provide the object distance. In
addition, multiple beeps or seat
pulses may occur if very close to an
object.
The vehicle may also have the Front
Parking Assist system.
See Assistance Systems for Parking
or Backing on page 9-58.
Active Emergency
Braking System
If the vehicle has Adaptive Cruise
Control (ACC) it also has the Active
Emergency Braking System, which
includes Intelligent Brake
Assist (IBA) and the Automatic

Black plate (35,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
Seats and Restraints 3-35
Warning (Continued)
problems following an airbag
deployment, you should seek
medical attention.
The vehicle has a feature that may
automatically unlock the doors, turn
on the interior lamps and hazard
warning flashers, and shut off the
fuel system after the airbags inflate.
The feature may also activate,
without airbag inflation, after an
event that exceeds a predetermined
threshold. You can lock the doors,
and turn off the interior lamps and
hazard warning flashers by using
the controls for those features.
{Warning
A crash severe enough to inflate
the airbags may have also
damaged important functions in
the vehicle, such as the fuel (Continued)
Warning (Continued)
system, brake and steering
systems, etc. Even if the vehicle
appears to be drivable after a
moderate crash, there may be
concealed damage that could
make it difficult to safely operate
the vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation.
Additional windshield breakage may
also occur from the front outboard
passenger airbag.
.Airbags are designed to inflate
only once. After an airbag
inflates, you will need some new
parts for the airbag system.
If you do not get them, the
airbag system will not be there
to help protect you in another crash. A new system will include
airbag modules and possibly
other parts. The service manual
for the vehicle covers the need
to replace other parts.
.The vehicle has a crash sensing
and diagnostic module which
records information after a
crash. See
Vehicle Data
Recording and Privacy on
page 13-14 andEvent Data
Recorders on page 13-14.
.Let only qualified technicians
work on the airbag systems.
Improper service can mean that
an airbag system will not work
properly. See your dealer for
service.
Passenger Sensing
System
The vehicle has a passenger
sensing system for the front
outboard passenger position. The
passenger airbag status indicator
will light on the overhead console
when the vehicle is started.

Black plate (1,1)GMC 2015i Yukon/Yukon XL Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431503) - 2015 - crc - 8/11/14
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-3
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 5-5
Compass . . . . . . . . . . . . . . . . . . . . . 5-6
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Power Outlets . . . . . . . . . . . . . . . . . 5-7
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . 5-10
Instrument Cluster . . . . . . . . . . . 5-11
Speedometer . . . . . . . . . . . . . . . . 5-13
Odometer . . . . . . . . . . . . . . . . . . . . 5-13
Trip Odometer . . . . . . . . . . . . . . . 5-13
Tachometer . . . . . . . . . . . . . . . . . . 5-13
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-14
Engine Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . 5-15 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-16
Voltmeter Gauge . . . . . . . . . . . . . 5-16
Safety Belt Reminders . . . . . . . 5-17
Airbag Readiness Light . . . . . . 5-18
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 5-18
Charging System Light . . . . . . 5-19
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-20
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-22
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-23
Tow/Haul Mode Light . . . . . . . . 5-24
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . 5-24
Vehicle Ahead Indicator . . . . . . 5-24
Traction Off Light . . . . . . . . . . . . 5-24
StabiliTrak®OFF Light . . . . . . . 5-25
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-25
Tire Pressure Light . . . . . . . . . . 5-25
Low Fuel Warning Light . . . . . . 5-26
Security Light . . . . . . . . . . . . . . . . 5-26
High-Beam On Light . . . . . . . . . 5-26
Front Fog Lamp Light . . . . . . . . 5-27
Lamps On Reminder . . . . . . . . . 5-27
Cruise Control Light . . . . . . . . . 5-27
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . 5-28
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-31
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-31
Brake System Messages . . . . 5-32
Compass Messages . . . . . . . . . 5-32
Cruise Control Messages . . . . 5-32
Door Ajar Messages . . . . . . . . . 5-33
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-33
Engine Oil Messages . . . . . . . . 5-34
Engine Power Messages . . . . 5-35
Fuel System Messages . . . . . . 5-35
Key and Lock Messages . . . . . 5-35
Lamp Messages . . . . . . . . . . . . . 5-36
Object Detection System Messages . . . . . . . . . . . . . . . . . . 5-36
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-38
Airbag System Messages . . . . 5-39
Security Messages . . . . . . . . . . 5-39
Steering System Messages . . . . . . . . . . . . . . . . . . 5-40
Tire Messages . . . . . . . . . . . . . . . 5-40