cruise control GMC YUKON XL 2018 User Guide

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
158 Instruments and Controls .
Brakes
.
Ride Control Systems
.
Driver Assistance Systems
.
Cruise Control
.
Lighting and Bulb Replacement
.
Wiper/Washer Systems
.
Doors and Windows
.
Seat Belts
.
Airbag Systems
.
Engine and Transmission
.
Tire Pressure
.
Battery
Engine Power Messages ENGINE POWER IS REDUCED This message displays when the
vehicle's propulsion power is
reduced. Reduced propulsion power
can affect the vehicle's ability to
accelerate. If this message is on,
but there is no observed reduction
in performance, proceed to your
destination. The performance may
be reduced the next time the vehicle
is driven. The vehicle may be driven while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this
message stays on, or displays
repeatedly, the vehicle should be
taken to your dealer for service as
soon as possible.
Vehicle Speed Messages SPEED LIMITED TO
XXX KM/H (MPH) This message shows that the
vehicle speed has been limited to
the speed displayed. The limited
speed is a protection for various
propulsion and vehicle systems,
such as lubrication, thermal,
suspension, Teen Driver if
equipped, or tires. Vehicle
Personalization Use the audio system controls to
access the personalization menus
for customizing vehicle features.
The following are all possible
personalization features. Depending
on the vehicle, some may not be
available.
Radio Audio System Controls
1. Touch the desired feature to
display a list of available
options.
2. Select the desired feature
setting.
3. Press
o BACK on the center
stack or touch
0 to return to
the previous menu or exit.
Turn the vehicle on to access the
Settings menu, then select
SETTINGS from the Home Page on
the infotainment display.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 161Auto Rear Defog
If equipped, this feature will
automatically turn on the rear
window defogger when the vehicle
is first started in cold weather and
turn off when the vehicle is warmed.
Select Off or On.
Collision/Detection Systems Select and the following may
display:
.
Alert Type
.
Forward Collision System
.
Adaptive Cruise 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) 0 248 .
Select Off, Alert and Brake, or Alert.
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 0 243 .
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) 0 250 .
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 0 243 .
Select Off or On.
Comfort and Convenience Select and the following may
display:
.
Auto Memory Recall
.
Easy Exit Options
.
Chime Volume
.
Hands Free Liftgate Control
.
Reverse Tilt Mirror
.
Auto Mirror Folding
.
Auto Wipe in Reverse Gear

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
188 Driving and Operating
Driving and
Operating Driving Information Distracted Driving . . . . . . . . . . . . 189
Defensive Driving . . . . . . . . . . . . . 190
Drunk Driving . . . . . . . . . . . . . . . . . 190
Control of a Vehicle . . . . . . . . . . . 190
Braking . . . . . . . . . . . . . . . . . . . . . . . 190
Steering . . . . . . . . . . . . . . . . . . . . . . 191
Off-Road Recovery . . . . . . . . . . . 191
Loss of Control . . . . . . . . . . . . . . . 192
Off-Road Driving . . . . . . . . . . . . . 192
Driving on Wet Roads . . . . . . . . 197
Hill and Mountain Roads . . . . . 198
Winter Driving . . . . . . . . . . . . . . . . 198
If the Vehicle Is Stuck . . . . . . . . 200
Vehicle Load Limits . . . . . . . . . . . 200
Starting and Operating New Vehicle Break-In . . . . . . . . . 204
Adjustable Throttle and Brake
Pedal . . . . . . . . . . . . . . . . . . . . . . . 205
Ignition Positions (Keyless
Access) . . . . . . . . . . . . . . . . . . . . . 205
Ignition Positions (Key
Access) . . . . . . . . . . . . . . . . . . . . . 207
Starting the Engine . . . . . . . . . . . 209
Engine Heater . . . . . . . . . . . . . . . . 210 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 212
Shifting Into Park . . . . . . . . . . . . . 212
Shifting out of Park . . . . . . . . . . . 213
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 214
Active Fuel Management . . . . . 214
Extended Parking . . . . . . . . . . . . 214
Engine Exhaust Engine Exhaust . . . . . . . . . . . . . . 215
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . 215
Automatic Transmission Automatic Transmission . . . . . . 216
Manual Mode . . . . . . . . . . . . . . . . . 218
Tow/Haul Mode . . . . . . . . . . . . . . . 222
Drive Systems Four-Wheel Drive . . . . . . . . . . . . . 222
Brakes Antilock Brake
System (ABS) . . . . . . . . . . . . . . . 227
Parking Brake . . . . . . . . . . . . . . . . 228
Brake Assist . . . . . . . . . . . . . . . . . . 228
Hill Start Assist (HSA) . . . . . . . . 229
Ride Control Systems
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . 229 Hill Descent Control (HDC) . . . 231
Magnetic Ride Control . . . . . . . . 232
Locking Rear Axle . . . . . . . . . . . . 232
Automatic Level Control . . . . . . 232
Cruise Control Cruise Control . . . . . . . . . . . . . . . . 233
Adaptive Cruise Control . . . . . . 235
Driver Assistance Systems Driver Assistance Systems . . . 242
Assistance Systems for
Parking or Backing . . . . . . . . . . 243
Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . 246
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . 246
Forward Automatic
Braking (FAB) . . . . . . . . . . . . . . . 248
Side Blind Zone
Alert (SBZA) . . . . . . . . . . . . . . . . 250
Lane Change Alert (LCA) . . . . . 250
Lane Departure
Warning (LDW) . . . . . . . . . . . . . 252
Lane Keep Assist (LKA) . . . . . . 252
Fuel Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 254
California Fuel
Requirements . . . . . . . . . . . . . . . 255
Fuels in Foreign Countries . . . 255
Fuel Additives . . . . . . . . . . . . . . . . 255

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
Driving and Operating 197After Off-Road Driving Remove any brush or debris that
has collected on the underbody or
chassis, or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand,
have the brake linings cleaned and
checked. These substances can
cause glazing and uneven braking.
Check the body structure, driveline,
steering, suspension, wheels, tires,
and exhaust system for damage and
check the fuel lines and cooling
system for any leakage.
More frequent maintenance service
is required. See the Maintenance
Schedule 0 370 .
Driving on Wet Roads Rain and wet roads can reduce
vehicle traction and affect your
ability to stop and accelerate.
Always drive slower in these types
of driving conditions and avoid
driving through large puddles and
deep-standing or flowing water. { WarningWet brakes can cause crashes.
They might not work as well in a
quick stop and could cause
pulling to one side. You could
lose control of the vehicle.
After driving through a large
puddle of water or a car/vehicle
wash, lightly apply the brake
pedal until the brakes work
normally.
Flowing or rushing water creates
strong forces. Driving through
flowing water could cause the
vehicle to be carried away. If this
happens, you and other vehicle
occupants could drown. Do not
ignore police warnings and be
very cautious about trying to drive
through flowing water.
Hydroplaning
Hydroplaning is dangerous. Water
can build up under the vehicle's
tires so they actually ride on the
water. This can happen if the road is wet enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to
slow down when the road is wet.
Other Rainy Weather Tips Besides slowing down, other wet
weather driving tips include:
.
Allow extra following distance.
.
Pass with caution.
.
Keep windshield wiping
equipment in good shape.
.
Keep the windshield washer fluid
reservoir filled.
.
Have good tires with proper
tread depth. See Tires 0 320 .
.
Turn off cruise control.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
Driving and Operating 199.
Allow greater following distance
and watch for slippery spots. Icy
patches can occur on otherwise
clear roads in shaded areas.
The surface of a curve or an
overpass can remain icy when
the surrounding roads are clear.
Avoid sudden steering
maneuvers and braking while
on ice.
.
Turn off cruise control.
Blizzard Conditions Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby.
If possible, use Roadside
Assistance. See Roadside
Assistance Program 0 390 . To get
help and keep everyone in the
vehicle safe:
.
Turn on the hazard warning
flashers.
.
Tie a red cloth to an outside
mirror. { WarningSnow can trap engine exhaust
under the vehicle. This may
cause exhaust gases to get
inside. Engine exhaust contains
carbon monoxide (CO), which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle is stuck in snow:
.
Clear snow from the base of
the vehicle, especially any
blocking the exhaust pipe.
.
Open a window about 5 cm
(2 in) on the vehicle side
that is away from the wind,
to bring in fresh air.
.
Fully open the air outlets on
or under the instrument
panel.
.
Adjust the climate control
system to circulate the air
inside the vehicle and set
(Continued) Warning (Continued) the fan speed to the highest
setting. See “ Climate
Control Systems. ”
For more information about CO,
see Engine Exhaust 0 215 .
To save fuel, run the engine for
short periods to warm the vehicle
and then shut the engine off and
partially close the window. Moving
about to keep warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle
speed. This keeps the battery
charged to restart the vehicle and to
signal for help with the headlamps.
Do this as little as possible, to
save fuel.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
218 Driving and Operating temperature changes. During this
adaptive shift control process,
shifting might feel different as the
transmission determines the best
settings.
When temperatures are very cold,
the transmission's gear shifting
could be delayed providing more
stable shifts until the engine warms
up. Shifts could be more noticeable
with a cold transmission. This
difference in shifting is normal.
L : This position allows selection of
a range of gears appropriate for
current driving conditions.
If equipped, see “ Range Selection
Mode ” under Manual Mode 0 218 .
Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If the vehicle
is stuck, do not spin the tires.
(Continued) Caution (Continued) When stopping on a hill, use the
brakes to hold the vehicle in
place.
Normal Mode Grade Braking This mode is enabled when the
vehicle is started, but is not enabled
in Range Selection Mode. It assists
in maintaining desired vehicle
speeds when driving on downhill
grades by using the engine and
transmission to slow the vehicle.
The first time the system engages
for each ignition cycle, a DIC
message will be displayed.
To disable or enable Normal Mode
Grade Braking within the current
ignition cycle, press and hold the
Tow/Haul button for five seconds.
When the button is released, the
requested mode change is made.
A DIC message displays.
For other forms of grade braking,
see Tow/Haul Mode 0 222 and
Cruise Control 0 233 . Kickdown Mode The accelerator pedal provides an
additional downshift after pressing
through the kickdown feature.
It requires extra pedal pressure near
the end of its travel to engage.
Manual Mode Range Selection Mode
If equipped, Range Selection Mode
helps control the vehicle's
transmission and vehicle speed
while driving downhill or towing a
trailer by letting you select a desired
range of gears.
To use this feature:
1. Move the shift lever to
L (Manual Mode).

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
Driving and Operating 22110 Speed Transmission Gear before shifting from
D (Drive) to L (Manual Mode) 10th 9th 8th 7th 6th 5th 4th 3rd 2nd 1st
Range after shifting from
D (Drive) to L (Manual
Mode) - Tow/Haul not engaged L7 L7 L7 L6 L5 L4 L3 L3 L2 L1
Range after shifting from
D (Drive) to L (Manual
Mode) - Tow/Haul engaged L7 L7 L6 L5 L4 L3 L3 L3 L2 L1
Grade Braking is not available when
Range Selection Mode is active.
See Tow/Haul Mode 0 222 .
While using Range Selection Mode,
cruise control and the Tow/Haul
Mode can be used.
Caution
Spinning the tires or holding the
vehicle in one place on a hill
using only the accelerator pedal
may damage the transmission.
The repair will not be covered by
the vehicle warranty. If the vehicle
(Continued) Caution (Continued) is stuck, do not spin the tires.
When stopping on a hill, use the
brakes to hold the vehicle in
place.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
222 Driving and Operating
Tow/Haul Mode
The Tow/Haul Mode adjusts the
transmission shift pattern to reduce
shift cycling. This provides
increased performance, vehicle
control, and enhanced transmission
and engine cooling when driving
down steep hills or mountain
grades, towing, or hauling heavy
loads.
The selector button is on the end of
the shift lever. Turn the Tow/Haul
Mode on and off by pressing the
button. When the Tow/Haul Mode is
enabled, a light on the instrument
cluster will come on. See Tow/Haul Mode Light 0 146 and
Hill and Mountain Roads 0 198 .
Also see “ Tow/Haul Mode ” under
Towing Equipment 0 267 .
Tow/Haul Mode Grade Braking Tow/Haul Mode Grade Braking is
only enabled while the Tow/Haul
Mode is selected and the vehicle is
not in the Range Selection Mode.
See “ Tow/Haul Mode ” listed
previously and Manual Mode 0 218 .
Tow/Haul Mode Grade Braking
assists in maintaining desired
vehicle speeds when driving on
downhill grades by using the engine
and transmission to slow the
vehicle.
To disable or enable Tow/Haul
Grade Braking within the current
ignition cycle, press and hold the
Tow/Haul button for five seconds.
When the button is released, the
requested mode change is made.
A DIC message is displayed.
See Towing Equipment 0 267 .
For other forms of grade braking,
see Automatic Transmission 0 216
and Cruise Control 0 233 .Drive Systems Four-Wheel Drive If equipped, four-wheel drive
engages the front axle for extra
traction.
CautionDo not drive on clean, dry
pavement in 4
m and 4
n (if
equipped) for an extended period
of time. These conditions may
cause premature wear on the
vehicle ’ s powertrain.
Driving on clean, dry pavement in 4
m or 4
n may:
.
Cause a vibration to be felt in
the steering system.
.
Cause tires to wear faster.
.
Make the transfer case harder to
shift, and cause it to run noisier.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
230 Driving and Operating intended path. Trailer Sway Control
(TSC) is also on automatically when
the vehicle is started. See Trailer
Sway Control (TSC) 0 273 .
If cruise control is being used and
traction control or StabiliTrak begins
to limit wheel spin, cruise control will
disengage. Cruise control may be
turned back on when road
conditions allow.
Both systems come on
automatically when the vehicle is
started and begins to move. The
systems may be heard or felt while
they are operating or while
performing diagnostic checks. This
is normal and does not mean there
is a problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but it may be necessary
to turn TCS off if the vehicle gets
stuck in sand, mud, ice, or snow.
See If the Vehicle Is Stuck 0 200
and “ Turning the Systems Off and
On ” later in this section.
When the transfer case is in
Four-Wheel Drive Low, the stability
system is automatically disabled,
g comes on, and the appropriate
message will appear on the DIC.
Both traction control and StabiliTrak
are automatically disabled in this
condition.
The indicator light for both systems
is in the instrument cluster. This
light will:
.
Flash when TCS is limiting
wheel spin.
.
Flash when StabiliTrak is
activated.
.
Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message displays in the
Driver Information Center (DIC), and
d comes on and stays on to
indicate that the system is inactive
and is not assisting the driver in maintaining control. The vehicle is
safe to drive, but driving should be
adjusted accordingly.
If
d comes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait
15 seconds.
3. Start the engine.
Drive the vehicle. If
d comes on
and stays on, the vehicle may need
more time to diagnose the problem.
If the condition persists, see your
dealer.
Turning the Systems Off
and On
The button for TCS and StabiliTrak
is on the instrument panel to the left
of the steering wheel.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/21/17
Driving and Operating 233proper vehicle height. The system is
activated when the ignition key is
turned on and will automatically
adjust vehicle height thereafter. The
system may exhaust (lower vehicle
height) for up to 10 minutes after the
ignition key has been turned off.
You may hear the air compressor
operating when the height is being
adjusted.
If a weight-distributing hitch is being
used, it is recommended to allow
the shocks to inflate, thereby
leveling the vehicle prior to adjusting
the hitch. Cruise Control
{ WarningCruise control can be dangerous
where you cannot drive safely at
a steady speed. Do not use
cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous
on slippery roads. On such roads,
fast changes in tire traction can
cause excessive wheel slip, and
you could lose control. Do not use
cruise control on slippery roads.
With cruise control a speed of about
40 km/h (25 mph) or more can be
maintained without keeping your
foot on the accelerator. Cruise
control does not work at speeds
below about 40 km/h (25 mph).
If the brakes are applied, the cruise
control disengages.
For an explanation of how cruise
control interacts with the Range
Selection Mode, Tow/Haul Mode, and Grade Braking systems. See
“ Grade Braking ” under Tow/Haul
Mode 0 222 .
This vehicle has StabiliTrak and
when the system begins to limit
wheel spin, the cruise control will
automatically disengage. See
Traction Control/Electronic Stability
Control 0 229 . If a collision alert
occurs when cruise control is
activated, cruise control is
disengaged. See Forward Collision
Alert (FCA) System 0 246 . When
road conditions allow the cruise
control to be safely used again, it
can be turned back on.