light GMC YUKON XL 2018 Owner's Guide

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Seats and Restraints 93wear a seat belt properly — whether
or not there is an airbag for that
person.
{ WarningIf the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light 0 141 for more information,
including important safety
information.
If the On Indicator Is Lit for a
Child Restraint The passenger sensing system is
designed to turn off the front
outboard passenger frontal airbag if
the system determines that an infant
is present in a child restraint. If a
child restraint has been installed
and the on indicator is lit:
1. Turn the vehicle off. 2. Remove the child restraint from
the vehicle.
3. Remove any additional items
from the seat such as blankets,
cushions, seat covers, seat
heaters, or seat massagers.
4. Reinstall the child restraint
following the directions
provided by the child restraint
manufacturer and refer to
Securing Child Restraints (With
the Seat Belt in the Center
Front Seat) 0 114 or Securing
Child Restraints (With the Seat
Belt in the Front Passenger
Seat) 0 114 or Securing Child
Restraints (With the Seat Belt
in the Rear Seat) 0 112 .
Make sure the seat belt
retractor is locked by pulling
the shoulder belt all the way
out of the retractor when
installing the child restraint,
even if the child restraint is
equipped with a seat belt lock
off. When the retractor lock is
set, the belt can be tightened
but not pulled out of the
retractor. 5. If, after reinstalling the child
restraint and restarting the
vehicle, the on indicator is still
lit, turn the vehicle off. Then
slightly recline the vehicle
seatback and adjust the seat
cushion, if adjustable, to make
sure that the vehicle seatback
is not pushing the child
restraint into the seat cushion.
Also make sure the child
restraint is not trapped under
the vehicle head restraint.
If this happens, adjust the head
restraint. See Head Restraints
0 61 .
6. Restart the vehicle.
The passenger sensing system may
or may not turn off the airbag for a
child in a child restraint depending
upon the child ’ s size. It is better to
secure the child restraint in a rear
seat. Never put a rear-facing child
restraint in the front seat, even if the
on indicator is not lit.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
96 Seats and Restraints of the passenger's seat. The
passenger sensing system may not
operate properly if the original seat
trim is replaced with non-GM
covers, upholstery, or trim, or with
GM covers, upholstery, or trim
designed for a different vehicle. Any
object, such as an aftermarket seat
heater or a comfort enhancing pad
or device, installed under or on top
of the seat fabric, could also
interfere with the operation of the
passenger sensing system. This
could either prevent proper
deployment of the passenger
airbag(s) or prevent the passenger
sensing system from properly
turning off the passenger airbag(s).
See Passenger Sensing System
0 91 .
If the vehicle has rollover roof-rail
airbags, see Different Size Tires
and Wheels 0 337 for additional
important information.
If you have to modify your vehicle
because you have a disability and
you have questions about whether
the modifications will affect the
vehicle's airbag system, or if you
have questions about whether the airbag system will be affected if the
vehicle is modified for any other
reason, call Customer Assistance.
See Customer Assistance Offices
0 388 .
Airbag System Check The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See
Airbag Readiness Light 0 141 .
CautionIf an airbag covering is damaged,
opened, or broken, the airbag
may not work properly. Do not
open or break the airbag
coverings. If there are any
opened or broken airbag
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, see Where Are the
Airbags? 0 86 . See your dealer
for service. Replacing Airbag System
Parts after a Crash
{ WarningA crash can damage the airbag
systems in the vehicle.
A damaged airbag system may
not properly protect you and your
passenger(s) in a crash, resulting
in serious injury or even death. To
help make sure the airbag
systems are working properly
after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See
your dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light 0 141 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Seats and Restraints 115Warning (Continued)will not deploy under some
unusual circumstance, even
though it is turned off.
Secure rear-facing child restraints
in a rear seat, even if the airbag
is off. If you secure a
forward-facing child restraint in
the front outboard passenger
seat, always move the seat as far
back as it will go. It is better to
secure the child restraint in a
rear seat.
See Passenger Sensing System
0 91 for additional information.
If the child restraint uses a top
tether, see Lower Anchors and
Tethers for Children (LATCH
System) 0 104 for top tether anchor
locations.
Do not secure a child seat in a
position without a top tether anchor
if a national or local law requires
that the top tether be anchored, or if the instructions that come with the
child restraint say that the top strap
must be anchored.
In Canada, the law requires that
forward-facing child restraints have
a top tether, and that the tether be
attached.
When using the lap-shoulder belt to
secure the child restraint in this
position, follow the instructions that
came with the child restraint and the
following instructions:
1. Move the seat as far back as it
will go before securing the
forward-facing child restraint.
Move the seat upward or the
seatback to an upright position,
if needed, to get a tight
installation of the child
restraint.
When the passenger sensing
system has turned off the front
outboard passenger frontal
airbag, the off indicator on the
passenger airbag status
indicator should light and stay
lit when you start the vehicle.
See Passenger Airbag Status
Indicator 0 142 . 2. Put the child restraint on
the seat.
3. Pick up the latch plate, and run
the lap and shoulder portions
of the vehicle's seat belt
through or around the restraint.
The child restraint instructions
will show you how.
Tilt the latch plate to adjust the
belt, if needed.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
122 Instruments and Controls
Instruments and
Controls Controls Steering Wheel Adjustment . . . 123
Steering Wheel Controls . . . . . . 123
Heated Steering Wheel . . . . . . . 123
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Windshield Wiper/Washer . . . . 123
Rear Window Wiper/
Washer . . . . . . . . . . . . . . . . . . . . . 125
Compass . . . . . . . . . . . . . . . . . . . . . 126
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 126
Power Outlets . . . . . . . . . . . . . . . . 127
Wireless Charging . . . . . . . . . . . . 129
Warning Lights, Gauges, and
Indicators Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . 132
Instrument Cluster . . . . . . . . . . . . 133
Speedometer . . . . . . . . . . . . . . . . . 136
Odometer . . . . . . . . . . . . . . . . . . . . . 136
Trip Odometer . . . . . . . . . . . . . . . . 136
Tachometer . . . . . . . . . . . . . . . . . . . 136
Fuel Gauge . . . . . . . . . . . . . . . . . . . 137
Engine Oil Pressure
Gauge . . . . . . . . . . . . . . . . . . . . . . 137 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 138
Transmission Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 139
Voltmeter Gauge . . . . . . . . . . . . . 140
Seat Belt Reminders . . . . . . . . . 140
Airbag Readiness Light . . . . . . . 141
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 142
Charging System Light . . . . . . . 142
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 143
Brake System Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . 145
Antilock Brake System (ABS)
Warning Light . . . . . . . . . . . . . . . 145
Four-Wheel-Drive Light . . . . . . . 146
Tow/Haul Mode Light . . . . . . . . . 146
Lane Keep Assist (LKA)
Light . . . . . . . . . . . . . . . . . . . . . . . . 146
Vehicle Ahead Indicator . . . . . . 146
Traction Off Light . . . . . . . . . . . . . 147
StabiliTrak OFF Light . . . . . . . . . 147
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 147
Engine Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 148
Tire Pressure Light . . . . . . . . . . . 148
Engine Oil Pressure Light . . . . 149
Low Fuel Warning Light . . . . . . 149
Security Light . . . . . . . . . . . . . . . . . 149 High-Beam On Light . . . . . . . . . . 149
Front Fog Lamp Light . . . . . . . . . 150
Lamps On Reminder . . . . . . . . . 150
Cruise Control Light . . . . . . . . . . 150
Door Ajar Light . . . . . . . . . . . . . . . 150
Information Displays Driver Information
Center (DIC) . . . . . . . . . . . . . . . . 151
Head-Up Display (HUD) . . . . . . 154
Vehicle Messages Vehicle Messages . . . . . . . . . . . . 157
Engine Power Messages . . . . . 158
Vehicle Speed Messages . . . . . 158
Vehicle Personalization Vehicle Personalization . . . . . . . 158
Universal Remote System Universal Remote System . . . . 166
Universal Remote System
Programming . . . . . . . . . . . . . . . 166
Universal Remote System
Operation . . . . . . . . . . . . . . . . . . . 168

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 123
Controls Steering Wheel
Adjustment Power Tilt and Telescoping
Steering Wheel
To adjust the power tilt and
telescoping steering wheel:
Press the control to move the
steering wheel up and down or
forward and rearward.
Do not adjust the steering wheel
while driving. Steering Wheel Controls The infotainment system can be
operated by using the steering
wheel controls. See "Steering
Wheel Controls" in the infotainment
manual.
Heated Steering Wheel
( : Press to turn the heated
steering wheel on or off. A light next
to the button displays when the
feature is turned on.
The steering wheel takes about
three minutes to start heating. Horn To sound the horn, press
a on the
steering wheel.
Windshield Wiper/Washer
The windshield wiper control is on
the turn signal lever.
The windshield wipers are controlled
by turning the band with
z FRONT on it.
1 : Fast wipes.
w : Slow wipes.
3 INT : If Rainsense is turned off,
turn the
z FRONT band up for
more frequent wipes or down for
less frequent wipes. If Rainsense is
turned on, see Rainsense later in
this section.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 129When adding electrical equipment,
be sure to follow the proper
installation instructions included with
the equipment. See Add-On
Electrical Equipment 0 274 .
CautionHanging heavy equipment from
the power outlet can cause
damage not covered by the
vehicle warranty. The power
outlets are designed for
accessory power plugs only, such
as cell phone charge cords.
Power Outlet 110/120-Volt
Alternating Current If equipped with this power outlet, it
can be used to plug in electrical
equipment that uses a maximum
limit of 150 watts.
For vehicles with a center console,
the 110/120-volt power outlet is on
the rear of the center console. For vehicles with bench seats, the
110/120-volt power outlet is on the
center stack below the climate
controls.
An indicator light on the outlet turns
on to show it is in use. The light
comes on when the ignition is on,
equipment requiring less than 150
watts is plugged into the outlet, and
no system fault is detected.
The indicator light does not come on
when the ignition is off or if the
equipment is not fully seated into
the outlet.
If equipment is connected using
more than 150 watts or a system
fault is detected, a protection circuit
shuts off the power supply and the
indicator light turns off. To reset the
circuit, unplug the item and plug it
back in or turn the ignition off and
then back to on. The power restarts
when equipment using 150 watts or
less is plugged into the outlet and a
system fault is not detected. The power outlet is not designed for
the following, and may not work
properly if they are plugged in:
.
Equipment with high initial peak
wattage, such as
compressor-driven refrigerators
and electric power tools
.
Other equipment requiring an
extremely stable power supply,
such as
microcomputer-controlled
electric blankets and touch
sensor lamps
.
Medical equipment
Wireless Charging The vehicle may have wireless
charging on top of the center
console. See Center Console
Storage 0 120 . The system
operates at 145 kHz and wirelessly
charges one PMA or Qi compatible
mobile device. The power output of
the system is capable of charging at
a rate up to 1 amp (5W), as
requested by the compatible mobile
device. See Radio Frequency
Statement 0 396 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
132 Instruments and Controls
Warning Lights,
Gauges, and
Indicators Warning lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.
Some warning lights come on briefly
when the engine is started to
indicate they are working. When
one of the warning lights comes on
and stays on while driving, or when
one of the gauges shows there may
be a problem, check the section that
explains what to do. Waiting to do
repairs can be costly and even
dangerous.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 135Cluster Menu There is an interactive display area
in the center of the instrument
cluster.
Use the right steering wheel control
to open and scroll through the
different items and displays.
Press
o to access the cluster
applications. Use
w or
x to scroll
through the list of available
applications. Not all applications will
be available on all vehicles. .
Info App. This is where the
selected Driver Information
Center (DIC) displays can be
viewed. See Driver Information
Center (DIC) 0 151 .
.
Audio
.
Phone
.
Navigation
.
Options
Audio
Press
V to select the Audio app,
then press
p to enter the Audio
menu. In the Audio menu browse for
music, select from the favorites,
or change the audio source. Use
wor
x to change the station or go to
the next or previous track.
Phone
Press
V to select the Phone app,
then press
p to enter the Phone
menu. In the Phone menu, if there is
no active phone call, view recent
calls, or scroll through contacts. If there is an active call, mute the
phone or switch to handset
operation.
Navigation
Press
V to select the Navigation
app, then press
p to enter the
Navigation menu. If there is no
active route, you can resume the
last route and turn the voice
prompts on/off. If there is an active
route, press
V to cancel or resume
route guidance or turn the voice
prompts on or off.
Options
Press
V to select the Options app,
then press
p to enter the Options
menu. Use
w or
x to scroll
through items in the Options menu.
Units : Press
p while Units is
displayed to enter the Units menu.
Choose English or Metric units by
pressing
V while the desired item is
highlighted. A checkmark will be
displayed next to the selected item.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
136 Instruments and Controls Display Themes (Denali) : There
are three instrument cluster display
configurations to choose from:
Standard, Technology, and Media.
Info Pages : Press
p while Info
Pages is displayed to enter the Info
Pages menu and select the items to
be displayed in the Info app. See
Driver Information Center (DIC)
0 151 .
Head-up Display (HUD) Rotation :
If equipped, this feature allows for
adjusting the angle of the HUD
image. Press
p on the steering
wheel controls while Head-up
Display Rotation is highlighted to
enter Adjust Mode. Press
w or
xto adjust the angle of the HUD
display. Press
V to confirm and
save the setting. To cancel the
setting, press
o . The vehicle must
be in P (Park).
Speed Warning : The Speed
Warning display allows the driver to
set a speed that they do not want to
exceed. To set the Speed Warning,
press
p when Speed Warning is displayed. Enable the speed
warning and then use
w or
x to
adjust the value. Press
V to set the
speed. Once the speed is set, this
feature can be turned off by
pressing
V while viewing this page.
If the selected speed limit is
exceeded, a pop-up warning is
displayed with a chime.
Software Information : Displays
open source software information.
Speedometer The speedometer shows the
vehicle's speed in either kilometers
per hour (km/h) or miles per
hour (mph).
Odometer The odometer shows how far the
vehicle has been driven, in either
kilometers or miles. The odometer
displays on the Speed page of the
Driver Information Center (DIC). Trip Odometer The trip odometer shows how far
the vehicle has been driven since
the trip odometer was last reset.
The trip odometer is accessed and
reset through the Driver Information
Center (DIC). See Driver
Information Center (DIC) 0 151 .
Tachometer The tachometer displays the engine
speed in revolutions per
minute (rpm).

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 137
Fuel Gauge
English Standard Theme Shown,
Metric Similar
When the ignition is on, the fuel
gauge indicates about how much
fuel is left in the tank.
There is an arrow near the fuel
gauge pointing to the side of the
vehicle the fuel door is on.
When the indicator nears empty, the
low fuel light comes on. There still is
a little fuel left, but the vehicle
should be refueled soon. Here are four things that some
owners ask about. None of these
show a problem with the fuel gauge:
.
At the service station, the fuel
pump shuts off before the gauge
reads full.
.
It takes a little more or less fuel
to fill up than the gauge
indicated. For example, the
gauge may have indicated the
tank was half full, but it actually
took a little more or less than
half the tank's capacity to fill
the tank.
.
The gauge moves a little while
turning a corner or speeding up.
.
The gauge takes a few seconds
to stabilize after the ignition is
turned on, and goes back to
empty when the ignition is
turned off. Engine Oil Pressure
Gauge
Metric Standard Theme