
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
22 In Brief
it detects that you are actively
steering. Override LKA by turning
the steering wheel. LKA uses a
camera to detect lane markings
between 60 km/h (37 mph) and
180 km/h (112 mph).
SeeLane Departure Warning (LDW)
0 263 andLane Keep Assist (LKA)
0 263.
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 moving
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 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)
0 261 andLane Change Alert (LCA)
0 261.
Rear Vision
Camera (RVC)
If equipped, RVC shows a view of
the area behind the vehicle on the
infotainment 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 0254.
Rear Cross Traffic Alert
(RCTA) System
If equipped, the RCTA system uses
a triangle with an arrow displayed
on the infotainment display 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 0254.
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
show a warning triangle on the
infotainment display 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 0254.
Power Outlets
Power Outlets 12-Volt Direct
Current
Accessory power outlets can be
used to plug in electrical equipment,
such as a cell phone, MP3
player, etc.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/10/16
Keys, Doors, and Windows 55
Folding Mirrors
Power Folding
To adjust power folding mirrors,
if equipped:1. Press
{to fold the mirrors
inward.
2. Press
{again to return the
mirrors to the driving position.
Resetting the Power Folding
Mirrors
Reset the power folding mirrors if:
. The mirrors are accidentally
obstructed while folding. .
They are accidentally manually
folded/unfolded.
. The mirrors will not stay in the
unfolded position.
. The mirrors vibrate at normal
driving speeds.
Fold and unfold the mirrors one time
using the mirror controls to reset
them to their normal position.
A popping noise may be heard
during the resetting of the power
folding mirrors. This sound is normal
after a manual folding operation.
Manual Folding
Fold the mirrors inward to prevent
damage when going through an
automatic car wash. To fold, pull the
mirror toward the vehicle. Push the
mirror outward, to return to its
original position.
Heated Mirrors
K
: Press to heat the mirrors.
See “Rear Window Defogger” under
Dual Automatic Climate Control
System 0192.
Automatic Dimming
Mirror
If the vehicle has the automatic
dimming mirror, the driver outside
mirror automatically adjusts for the
glare of the headlamps from behind.
Blind Spot Mirrors
If equipped, there is a small convex
mirror built into the upper and outer
corner of the driver outside rearview
mirror. It can show objects that may
be in the vehicle's blind zone.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/10/16
56 Keys, Doors, and Windows
Driving with the Blind Spot
Mirror
Actual Mirror View1. When the approaching vehicle
is a long distance away, the
image in the main mirror is
small and near the inboard
edge of the mirror.
2. As the vehicle gets closer, the image in the main mirror gets
larger and moves outboard.
3. As the vehicle enters the blind zone, the image transitions
from the main mirror to the
blind spot mirror.
4. When the vehicle is in the blind zone, the image only appears
in the blind spot mirror.
Using the Outside Mirror with
the Blind Spot Mirror
1. Set the main mirror so that theside of the vehicle can just be
seen and the blind spot mirror
has an unobstructed view.
2. When checking for traffic or before changing a lane, look at
the main driver/passenger side
mirror to observe traffic in the
adjacent lane, behind your
vehicle. Check the blind spot
mirror for a vehicle in the blind zone. Then, glance over your
shoulder to double check
before moving slowly into the
adjacent lane.
Reverse Tilt Mirrors
If equipped with memory seats, the
passenger and/or driver mirror tilts
to a preselected position when the
vehicle is in R (Reverse). This
allows the curb to be seen when
parallel parking.
The mirror(s) return to the original
position when:
.
The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about
30 seconds.
. The ignition is turned off.
. The vehicle is driven in
R (Reverse) above a set speed.
To turn this feature on or off, see
Vehicle Personalization 0171.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
Instruments and Controls 165
FORWARD COLLISION
SYSTEM UNAVAILABLE
This message displays when
Forward Automatic Braking (FAB)
has been unavailable for some time.
The FAB System does not need
service. This message can display
under the following conditions:
.The front of the vehicle or
windshield is not clean. Keep
these areas clean and free of
mud, dirt, snow, ice, and slush.
For cleaning instructions, see
Exterior Care 0366.
. Heavy rain or snow is interfering
with the object detection
performance.
This message may also be
displayed if there is a problem with
the StabiliTrak system. See Traction
Control/Electronic Stability Control
0 241.
FORWARD COLLISION
ALERT OFF
This message displays when the
Forward Collision Alert has been
turned off.
FRONT CAMERA BLOCKED
CLEAN WINDSHIELD
This message displays when the
camera is blocked. Cleaning the
outside of the windshield behind the
rearview mirror may correct the
issue. The Lane Keep Assist (LKA)
and the Lane Departure Warning
(LDW) system will not operate.
Forward Collision Alert (FCA) and
Forward Automatic Braking (FAB)
may not work or may not work
as well.
LANE CHANGE ALERT OFF
This message indicates that the
driver has turned the Side Blind
Zone Alert (SBZA) and Lane
Change Alert (LCA) systems off.
LANE KEEPING ASSIST
UNAVAILABLE
This message displays when the
Lane Keep Assist (LKA) and Lane
Departure Warning (LDW) system is
temporarily unavailable. The LKA
system does not need service. This message could be due to the
camera being blocked. Clean the
outside of the windshield behind the
rearview mirror.
PARK ASSIST OFF
This message displays when the
Parking Assist system has been
turned off or when there is a
temporary condition causing the
system to be disabled.
SERVICE FORWARD
COLLISION SYSTEM
If this message displays, take the
vehicle to your dealer to repair the
system. Adaptive Cruise Control
(ACC), Forward Collision Alert
(FCA), and/or Forward Automatic
Braking (FAB) may not work. Do not
use these systems until the vehicle
has been repaired.
SERVICE FRONT CAMERA
If this message remains on after
continued driving, the vehicle needs
service. Do not use the Lane Keep
Assist (LKA), Lane Departure
Warning (LDW), Forward Automatic

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
166 Instruments and Controls
Braking (FAB), and Forward
Collision Alert (FCA) features. Take
the vehicle to your dealer.
SERVICE PARK ASSIST
This message displays if there is a
problem with the Parking Assist
system. Do not use this system to
help you park. See your dealer for
service.
SERVICE SIDE DETECTION
SYSTEM
If this message remains on after
continued driving, the vehicle needs
service. Side Blind Zone Alert
(SBZA), Lane Change Alert (LCA),
and Rear Cross Traffic Alert (RCTA)
features will not work. Take the
vehicle to your dealer.
SIDE DETECTION SYSTEM
UNAVAILABLE
This message indicates that Side
Blind Zone Alert (SBZA), Lane
Change Alert (LCA), and Rear
Cross Traffic Alert (RCTA) are
disabled either because the sensor
is blocked and cannot detect
vehicles in the blind zone, or thevehicle is passing through an open
area, such as the desert, where
there is insufficient data for
operation. This message may also
activate during heavy rain or due to
road spray. The vehicle does not
need service. For cleaning, see
"Washing the Vehicle" under
Exterior Care
0366.
Ride Control System
Messages
SERVICE LEVELING SYSTEM
If the vehicle has the Magnetic Ride
Control™ suspension system or
Automatic Level Control, this
message displays when the leveling
system is not operating properly.
Have the vehicle serviced by your
dealer.
SERVICE STABILITRAK
If this message displays, it means
there may be a problem with the
StabiliTrak system. If you see this
message, try to reset the system.
Stop; turn off the engine for at least
15 seconds; then start the engine
again. If this message still comes on, it means there is a problem. You
should see your dealer for service.
The vehicle is safe to drive;
however, you do not have the
benefit of StabiliTrak, so reduce
your speed and drive accordingly.
SERVICE SUSPENSION
SYSTEM
If the vehicle has the Magnetic Ride
Control suspension system, this
message displays when the
suspension system is not operating
properly. Have the vehicle serviced
by your dealer.
SERVICE TRACTION
CONTROL
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. See
Traction Control/
Electronic Stability Control 0241.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
174 Instruments and Controls
Collision/Detection Systems
Select the Collision/Detection
Systems menu and the following
may display:
.Alert Type
. Forward Collision System
. Go Notifier
. Park Assist
. Side Blind Zone Alert
. Rear Cross Traffic Alert
Alert Type
This feature will set crash alerts to
beeps or seat vibrations. This
setting affects all crash alerts
including Forward Collision Alert,
Lane Departure Warning, and Park
Assist alerts.
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. See
Forward
Automatic Braking (FAB) 0259.
Select Off, Alert and Brake, or Alert.
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 0254.
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) 0261.
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 0254.
Select Off or On.
Comfort and Convenience
Select the Comfort and
Convenience menu and the
following may display:
. Auto Memory Recall
. Easy Exit Options
. Chime Volume
. Reverse Tilt Mirror
. Auto Mirror Folding
. Auto Wipe in Reverse Gear
Auto Memory Recall
This allows the feature to be turned
on or off. See Memory Seats 066.
Select On or Off.
Easy Exit Options
This allows the feature to be turned
on or off. See Memory Seats 066.
Select On or Off.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
200 Driving and Operating
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 201
Defensive Driving . . . . . . . . . . . . . 202
Drunk Driving . . . . . . . . . . . . . . . . . 202
Control of a Vehicle . . . . . . . . . . . 202
Braking . . . . . . . . . . . . . . . . . . . . . . . 202
Steering . . . . . . . . . . . . . . . . . . . . . . 203
Off-Road Recovery . . . . . . . . . . . 203
Loss of Control . . . . . . . . . . . . . . . 204
Off-Road Driving . . . . . . . . . . . . . 204
Driving on Wet Roads . . . . . . . . 209
Hill and Mountain Roads . . . . . 210
Winter Driving . . . . . . . . . . . . . . . . 210
If the Vehicle Is Stuck . . . . . . . . 212
Vehicle Load Limits . . . . . . . . . . . 213
Starting and Operating
New Vehicle Break-In . . . . . . . . . 217
Adjustable Throttle and BrakePedal . . . . . . . . . . . . . . . . . . . . . . . 218
Ignition Positions (Key Access) . . . . . . . . . . . . . . . . . . . . . 218
Ignition Positions (Keyless Access) . . . . . . . . . . . . . . . . . . . . . 220
Starting the Engine . . . . . . . . . . . 222
Engine Heater . . . . . . . . . . . . . . . . 223 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 225
Shifting Into Park . . . . . . . . . . . . . 225
Shifting out of Park . . . . . . . . . . . 226
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 227
Active Fuel Management . . . . . 227
Extended Parking . . . . . . . . . . . . 227
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 228
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 228
Automatic Transmission
Automatic Transmission . . . . . . 229
Manual Mode . . . . . . . . . . . . . . . . . 231
Tow/Haul Mode . . . . . . . . . . . . . . . 234
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . 235
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 238
Parking Brake . . . . . . . . . . . . . . . . 239
Brake Assist . . . . . . . . . . . . . . . . . . 240
Hill Start Assist (HSA) . . . . . . . . 240
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 241 Magnetic Ride Control . . . . . . . . 243
Locking Rear Axle . . . . . . . . . . . . 243
Automatic Level Control . . . . . . 243
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 244
Adaptive Cruise Control . . . . . . 246
Driver Assistance Systems
Driver Assistance Systems . . . 253
Assistance Systems for
Parking or Backing . . . . . . . . . . 254
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 256
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 257
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 259
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 261
Lane Change Alert (LCA) . . . . . 261
Lane Departure Warning (LDW) . . . . . . . . . . . . . 263
Lane Keep Assist (LKA) . . . . . . 263
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 265
California Fuel Requirements . . . . . . . . . . . . . . . 266
Fuels in Foreign Countries . . . 266
Fuel Additives . . . . . . . . . . . . . . . . 266
E85 or FlexFuel . . . . . . . . . . . . . . 266

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-9955936) - 2017 - crc - 11/9/16
256 Driving and Operating
When an object is first detected in
the rear, one beep will be heard
from the rear, or both sides of the
Safety Alert Seat will pulse two
times. When an object is very close
(<0.6 m (2 ft) in the vehicle rear,
or <0.3 m (1 ft) in the vehicle front),
a continuous beep will sound from
the front or rear depending on
object location, or both sides of the
Safety Alert Seat will pulse five
times. Beeps for FPA are higher
pitched than for RPA.
Rear Cross Traffic Alert (RCTA)
If equipped, when the vehicle is
shifted into R (Reverse), RCTA
displays a red warning triangle with
a left or right pointing arrow on the
RVC screen to warn of traffic
coming from the left or right. This
system detects objects coming from
up to 20 m (65 ft) from the left or
right side of the vehicle. When an
object is detected, either three
beeps sound from the left or right or
three Safety Alert Seat pulses occur
on the left or right side, depending
on the direction of the detected
vehicle.Use caution while backing up when
towing a trailer, as the RCTA
detection zones that extend out
from the back of the vehicle do not
move further back when a trailer is
towed.
Turning the Features On or Off
TheXbutton to the left of the
steering wheel is used to turn on or
off the Front and Rear Parking
Assist. The indicator light in the
button comes on when the features
are on and turns off when the
features have been disabled.
Front and Rear Parking Assist can
be turned off, on, or on with towbar
through vehicle personalization. See
“Parking Assist” underVehicle
Personalization 0171. If the parking
assist is turned off through vehicle
personalization, the parking assist
button will be disabled. To turn the parking assist on again, select On in
the vehicle personalization menu.
The On with Towbar setting allows
for the parking assist to work
properly with a small item attached
to the trailer hitch. Turn off parking
assist when towing a trailer.
To turn the rear parking assist
symbols, guidance lines, or Rear
Cross Traffic Alert on or off, see
“Rear Camera”
underVehicle
Personalization 0171
Assistance Systems for
Driving
If equipped, when driving the
vehicle in a forward gear, Forward
Collision Alert (FCA), Lane
Departure Warning (LDW), Lane
Keep Assist (LKA), Side Blind Zone
Alert (SBZA), Lane Change Alert
(LCA), and/or Forward Automatic
Braking (FAB) can help to avoid a
crash or reduce crash damage.