2019 GMC YUKON XL tow

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
156 Instruments and Controls
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the
system. If the ABS light stays on,
or comes on again while driving, the
vehicle needs service. A chime may
also sound when the light comes on
steady.
If the ABS light is the only light on,
the vehicle has regular brakes, but
the antilock brakes are not
functioning.
If both the ABS and the brake
system warning light are on, the
vehicle's antilock brakes are not
functioning and there is a problem
with the regular brakes. See your
dealer for service.
SeeBrake System Warning Light
0 155.Four-Wheel-Drive Light
The four-wheel-drive light comes on
when the transfer case is shifted
into four-wheel drive and the front
axle engages. LO or HI will also be
next to this light when the vehicle is
in four-wheel low or four-wheel high.
Some delay between the shifting
and the light coming on is normal.
See Four-Wheel Drive 0234.
Tow/Haul Mode Light
For vehicles with the Tow/Haul
Mode feature, this light comes on
when the Tow/Haul Mode has been
activated.
See Tow/Haul Mode 0233.
Lane Keep Assist (LKA)
Light
If equipped, this light is green if LKA
is available to assist.
LKA may assist by gently turning
the steering wheel if the vehicle
approaches a detected lane marking
without using the turn signal in that
direction. The LKA light will turn
amber.
This light is amber and flashes as a
Lane Departure Warning (LDW)
alert, to indicate that the lane
marking has been crossed.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
Instruments and Controls 165
onto the windshield. The information
is projected through the HUD lens
on the driver side of the instrument
panel and focused out toward the
front of the vehicle.
Caution
If you try to use the HUD image
as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
The HUD information can be
displayed in various languages. The
speedometer reading and other
numerical values can be displayed
in either English or metric units.
The language selection is changed
through the radio and the units of
measurement is changed through
the instrument cluster. See Vehicle
Personalization 0169 and "Options"
under Instrument Cluster 0143.
HUD Display on the Windshield
The HUD may display some of the
following vehicle information and
vehicle messages or alerts:
. Speed
. Tachometer
. Audio
. Phone
. Navigation
. Collision Alert
. Adaptive Cruise Control and set
speed
. Lane Departure Warning/Lane
Keep Assist .
Low Fuel
Some vehicle messages or alerts
displayed in the HUD may be
cleared by using the steering wheel
controls. See Vehicle Messages
0 168.
The HUD control is to the left of the
steering wheel.
To adjust the HUD image:
1. Adjust the driver seat.
2. Start the engine.
3. Use the following settings to adjust the HUD.
$:Press or lift to center the HUD
image. The HUD image can only be
adjusted up and down, not side
to side.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
172 Instruments and Controls
Select Beeps or Safety Alert Seat.
Forward Collision System
This feature will turn on or off
Forward Collision Alert (FCA) and
Forward Automatic Braking (FAB).
The Off setting disables all FCA and
FAB functions. With the Alert and
Brake setting, both FCA and FAB
are available. The Alert setting
disables FAB. SeeForward
Automatic Braking (FAB) 0262.
Select Off, Alert, or Alert and Brake.
Adaptive Cruise Go Notifier
This feature will give a reminder that
Adaptive Cruise Control provides
when it has brought the vehicle to a
complete stop behind another
stopping vehicle, and then that
vehicle drives on.
Select Off or On.
Park Assist
This allows the feature to be turned
on or off. See Assistance Systems
for Parking or Backing 0256.
Select Off, On, or On with Towbar
Attached. Side Blind Zone Alert
This allows the feature to be turned
on or off. See
Side Blind Zone Alert
(SBZA) 0264.
Select Off or On.
Rear Cross Traffic Alert
This allows the feature to be turned
on or off. See Assistance Systems
for Parking or Backing 0256.
Select Off or On.
Lane Change Alert
This allows the feature to be turned
on or off. See Lane Change Alert
(LCA) 0264.
Select Off or On.
Comfort and Convenience
Select and the following may
display:
. Auto Running Boards
. Auto Memory Recall
. Easy Exit Options
. Chime Volume
. Hands Free Liftgate Control .
Reverse Tilt Mirror
. Auto Mirror Folding
. Auto Wipe in Reverse Gear
Auto Running Boards
This allows the feature to be turned
on or off. See Power Assist Steps
0 52.
Select Off, On, or Extended.
Auto Memory Recall
This feature automatically recalls
the current driver ’s previously stored
1 or 2 button positions when the
ignition is changed from off to on or
ACC/ACCESSORY. See Memory
Seats 069.
Select Off or On.
Easy Exit Options
This feature automatically recalls
the previously stored Exit button
position when exiting the vehicle.
See Memory Seats 069.
Select Off or On.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
Lighting 183
.The system detects a preceding
vehicle's taillamps.
. The outside light is bright
enough that high-beam
headlamps are not required.
. The vehicle's speed drops below
20 km/h (12 mph).
. The IntelliBeam system can be
disabled by the High/Low-Beam
Changer or the Flash-to-Pass
feature. If this happens, the
High/Low-Beam Changer must
be activated on then off within
two seconds to reactivate the
IntelliBeam system. The
instrument cluster light will come
on to indicate the IntelliBeam is
reactivated.
See Headlamp High/Low-Beam
Changer 0183 and
Flash-to-Pass 0184.
The high beams may not turn off
automatically if the system cannot
detect another vehicle's lamps
because of any of the following: .
The other vehicle's lamps are
missing, damaged, obstructed
from view, or otherwise
undetected.
. The other vehicle's lamps are
covered with dirt, snow, and/or
road spray.
. The other vehicle's lamps cannot
be detected due to dense
exhaust, smoke, fog, snow, road
spray, mist, or other airborne
obstructions.
. The vehicle's windshield is dirty,
cracked, or obstructed by
something that blocks the view
of the light sensor.
. The vehicle is loaded such that
the front end points upward,
causing the light sensor to aim
high and not detect headlamps
and taillamps.
. The vehicle is being driven on
winding or hilly roads.
The automatic high-beam
headlamps may need to be disabled
if any of the above conditions exist.Exterior Lamps Off
Reminder
A reminder chime sounds when the
headlamps or parking lamps are
manually turned on, the ignition is
off, and a door is open. To disable
the chime, turn the lamps off.
Headlamp High/
Low-Beam Changer
Push the turn signal lever toward
the instrument panel to change the
headlamps from low to high beam.
Pull the turn signal lever toward you
and release it to return to low-beam
headlamps.
When the high-beam headlamps are
on, this indicator light on the
instrument cluster will also be on.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
184 Lighting
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. Depending on the type of
headlamp, they will either turn off
after a short duration or stay on as
long as you hold the lever toward
you. The high-beam indicator on the
instrument cluster will come on.
Release the lever to return to
normal operation.
Daytime Running
Lamps (DRL)
DRL can make it easier for others to
see the front of the vehicle during
the day. Fully functional DRL 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 lamp control is
in AUTO.
. The transmission is not in
P (Park).
. The light sensor determines it is
daytime.
When the DRL system is on, only
the DRL are on. The taillamps,
sidemarker lamps, instrument panel
lights, and other lamps will not
be on.
When it begins to get dark, the
automatic headlamp system
switches from DRL to the
headlamps. To turn off the DRL, turn the exterior
lamp control to
Oand then release.
For vehicles first sold in Canada, off
will only work when the vehicle is
parked.
Automatic Headlamp
System
When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
There is a light sensor on top of the
instrument panel. Do not cover the
sensor, otherwise the headlamps
will come on when they are not
needed.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
186 Lighting
change. This causes the turn
signals to automatically flash three
times. It will flash six times if Tow/
Haul Mode is active. Holding the
turn signal lever for more than
one second will cause the turn
signals to flash until the lever is
released.
The lever returns to its starting
position whenever it is released.
If after signaling a turn or a lane
change the arrows flash rapidly or
do not come on, a signal bulb could
be burned out.
Replace any burned out bulbs. If a
bulb is not burned out, check the
fuse. SeeFuses and Circuit
Breakers 0329.
Turn Signal On Chime
If the turn signal is left on for more
than 1.2 km (0.75 mi), a chime
sounds at each flash of the turn
signal. The message TURN
SIGNAL ON will also appear in the
Driver Information Center (DIC). To
turn the chime and message off,
move the turn signal lever to the off
position.Fog Lamps
If equipped with fog lamps, the
button is on the exterior lamp
control, to the left of the steering
column.
The ignition must be on for the fog
lamps to come on.
#: Press to turn the fog lamps on
or off. A light will come on in the
instrument cluster.
When the fog lamps are turned on,
the parking lamps automatically
turn on. When the headlamps are changed
to high beam, the fog lamps also go
off. When the high-beam headlamps
are turned off, the fog lamps will
come on again.
Some localities have laws that
require the headlamps to be on with
the fog lamps.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
Driving and Operating 199
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 200
Defensive Driving . . . . . . . . . . . . . 201
Drunk Driving . . . . . . . . . . . . . . . . . 201
Control of a Vehicle . . . . . . . . . . . 201
Braking . . . . . . . . . . . . . . . . . . . . . . . 201
Steering . . . . . . . . . . . . . . . . . . . . . . 202
Off-Road Recovery . . . . . . . . . . . 202
Loss of Control . . . . . . . . . . . . . . . 203
Off-Road Driving . . . . . . . . . . . . . 203
Driving on Wet Roads . . . . . . . . 208
Hill and Mountain Roads . . . . . 209
Winter Driving . . . . . . . . . . . . . . . . 209
If the Vehicle Is Stuck . . . . . . . . . 211
Vehicle Load Limits . . . . . . . . . . . 212
Starting and Operating
New Vehicle Break-In . . . . . . . . . 216
Adjustable Throttle and BrakePedal . . . . . . . . . . . . . . . . . . . . . . . 216
Ignition Positions (Key Access) . . . . . . . . . . . . . . . . . . . . . 217
Ignition Positions (Keyless Access) . . . . . . . . . . . . . . . . . . . . . 219
Starting the Engine . . . . . . . . . . . 221 Engine Heater . . . . . . . . . . . . . . . . 223
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 224
Shifting Into Park . . . . . . . . . . . . . 224
Shifting out of Park . . . . . . . . . . . 226
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 226
Active Fuel Management . . . . . 226
Extended Parking . . . . . . . . . . . . 226
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 227
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 228
Automatic Transmission
Automatic Transmission . . . . . . 228
Manual Mode . . . . . . . . . . . . . . . . . 231
Tow/Haul Mode . . . . . . . . . . . . . . . 233
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . 234
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 239
Parking Brake . . . . . . . . . . . . . . . . 240
Brake Assist . . . . . . . . . . . . . . . . . . 241
Hill Start Assist (HSA) . . . . . . . . 241
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 242
Hill Descent Control (HDC) . . . 244
Magnetic Ride Control . . . . . . . . 244
Locking Rear Axle . . . . . . . . . . . . 245
Automatic Level Control . . . . . . 245
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 245
Adaptive Cruise Control . . . . . . 248
Driver Assistance Systems
Driver Assistance Systems . . . 255
Assistance Systems for Parking or Backing . . . . . . . . . . 256
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 260
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 260
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 262
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 264
Lane Change Alert (LCA) . . . . . 264
Lane Departure Warning (LDW) . . . . . . . . . . . . . 266
Lane Keep Assist (LKA) . . . . . . 266
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 268

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
200 Driving and Operating
Recommended Fuel (L83 5.3LV8 Engine) . . . . . . . . . . . . . . . . . . 269
Recommended Fuel (L86 6.2L V8 Engine) . . . . . . . . . . . . . . . . . . 269
Prohibited Fuels . . . . . . . . . . . . . . 269
Fuels in Foreign Countries . . . 270
Fuel Additives . . . . . . . . . . . . . . . . 270
E85 or FlexFuel . . . . . . . . . . . . . . 270
Filling the Tank . . . . . . . . . . . . . . . 271
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 272
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 273
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 273
Trailer Towing . . . . . . . . . . . . . . . . 278
Towing Equipment . . . . . . . . . . . . 284
Trailer Sway Control (TSC) . . . 292
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 294
Driving Information
Distracted Driving
Distraction comes in many forms
and can take your focus from the
task of driving. Exercise good
judgment and do not let other
activities divert your attention away
from the road. Many local
governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep
your eyes on the road, keep your
hands on the steering wheel, and
focus your attention on driving.
. Do not use a phone in
demanding driving situations.
Use a hands-free method to
place or receive necessary
phone calls.
. Watch the road. Do not read,
take notes, or look up
information on phones or other
electronic devices. .
Designate a front seat
passenger to handle potential
distractions.
. Become familiar with vehicle
features before driving, such as
programming favorite radio
stations and adjusting climate
control and seat settings.
Program all trip information into
any navigation device prior to
driving.
. Wait until the vehicle is parked
to retrieve items that have fallen
to the floor.
. Stop or park the vehicle to tend
to children.
. Keep pets in an appropriate
carrier or restraint.
. Avoid stressful conversations
while driving, whether with a
passenger or on a cell phone.