power steering GMC YUKON 2018 User Guide

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Instruments and Controls 125
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 126
Steering Wheel Controls . . . . . . 126
Heated Steering Wheel (IfEquipped) . . . . . . . . . . . . . . . . . . . 126
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Windshield Wiper/Washer . . . . 126
Rear Window Wiper/ Washer . . . . . . . . . . . . . . . . . . . . . 128
Compass . . . . . . . . . . . . . . . . . . . . . 129
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 129
Power Outlets . . . . . . . . . . . . . . . . 130
Wireless Charging . . . . . . . . . . . . 132
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 135
Instrument Cluster . . . . . . . . . . . . 136
Speedometer . . . . . . . . . . . . . . . . . 139
Odometer . . . . . . . . . . . . . . . . . . . . . 139
Trip Odometer . . . . . . . . . . . . . . . . 139
Tachometer . . . . . . . . . . . . . . . . . . . 139
Fuel Gauge . . . . . . . . . . . . . . . . . . . 140 Engine Oil Pressure
Gauge . . . . . . . . . . . . . . . . . . . . . . 140
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 141
Transmission Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 142
Voltmeter Gauge . . . . . . . . . . . . . 143
Seat Belt Reminders . . . . . . . . . 143
Airbag Readiness Light . . . . . . . 144
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 145
Charging System Light . . . . . . . 145
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 146
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 148
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 148
Four-Wheel-Drive Light . . . . . . . 149
Tow/Haul Mode Light . . . . . . . . . 149
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 149
Vehicle Ahead Indicator . . . . . . 150
Traction Off Light . . . . . . . . . . . . . 150
StabiliTrak OFF Light . . . . . . . . . 150
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 151
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 151
Tire Pressure Light . . . . . . . . . . . 151 Engine Oil Pressure Light . . . . 152
Low Fuel Warning Light . . . . . . 152
Security Light . . . . . . . . . . . . . . . . . 153
High-Beam On Light . . . . . . . . . . 153
Front Fog Lamp Light . . . . . . . . . 153
Lamps On Reminder . . . . . . . . . 153
Cruise Control Light . . . . . . . . . . 154
Door Ajar Light . . . . . . . . . . . . . . . 154
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . 154
Head-Up Display (HUD) . . . . . . 157
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 161
Engine Power Messages . . . . . 161
Vehicle Speed Messages . . . . . 162
Vehicle Personalization
Vehicle Personalization . . . . . . . 162
Universal Remote System
Universal Remote System . . . . 170
Universal Remote System Programming . . . . . . . . . . . . . . . 170
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 173

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
126 Instruments and Controls
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 (If
Equipped)
(: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, pressaon 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
zFRONT on it.
1: Fast wipes.
w:Slow wipes.
3INT : If Rainsense is turned off,
turn the
zFRONT band up for
more frequent wipes or down for

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
174 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . 174
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 176
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . 176
Flash-to-Pass . . . . . . . . . . . . . . . . 176
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 177
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 177
Hazard Warning Flashers . . . . . 178
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 178
Fog Lamps . . . . . . . . . . . . . . . . . . . 179
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 180
Dome Lamps . . . . . . . . . . . . . . . . . 180
Reading Lamps . . . . . . . . . . . . . . 180
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . 181
Exit Lighting . . . . . . . . . . . . . . . . . . 181
Battery Load Management . . . 181
Battery Power Protection . . . . . 182
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 182Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
There are four positions:
O: Turns off the automatic
headlamps and Daytime Running
Lamps (DRL). Turn the headlamp
control to
Oagain to turn the
automatic headlamps or DRL
back on.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
192 Driving and Operating
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 193
Defensive Driving . . . . . . . . . . . . . 194
Drunk Driving . . . . . . . . . . . . . . . . . 194
Control of a Vehicle . . . . . . . . . . . 194
Braking . . . . . . . . . . . . . . . . . . . . . . . 194
Steering . . . . . . . . . . . . . . . . . . . . . . 195
Off-Road Recovery . . . . . . . . . . . 195
Loss of Control . . . . . . . . . . . . . . . 196
Off-Road Driving . . . . . . . . . . . . . 196
Driving on Wet Roads . . . . . . . . 201
Hill and Mountain Roads . . . . . 202
Winter Driving . . . . . . . . . . . . . . . . 202
If the Vehicle Is Stuck . . . . . . . . 203
Vehicle Load Limits . . . . . . . . . . . 204
Starting and Operating
New Vehicle Break-In . . . . . . . . . 209
Adjustable Throttle and BrakePedal . . . . . . . . . . . . . . . . . . . . . . . 209
Ignition Positions (Keyless Access) . . . . . . . . . . . . . . . . . . . . . 210
Ignition Positions (Key Access) . . . . . . . . . . . . . . . . . . . . . 212
Starting the Engine . . . . . . . . . . . 213 Engine Heater . . . . . . . . . . . . . . . . 215
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 216
Shifting Into Park . . . . . . . . . . . . . 217
Shifting out of Park . . . . . . . . . . . 218
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 218
Active Fuel Management . . . . . 218
Extended Parking . . . . . . . . . . . . 219
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 219
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 220
Automatic Transmission
Automatic Transmission . . . . . . 220
Manual Mode . . . . . . . . . . . . . . . . . 223
Tow/Haul Mode . . . . . . . . . . . . . . . 225
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . 226
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 231
Parking Brake . . . . . . . . . . . . . . . . 232
Brake Assist . . . . . . . . . . . . . . . . . . 233
Hill Start Assist (HSA) . . . . . . . . 233
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 234
Hill Descent Control (HDC) . . . 236
Magnetic Ride Control . . . . . . . . 236
Locking Rear Axle . . . . . . . . . . . . 237
Automatic Level Control . . . . . . 237
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 237
Adaptive Cruise Control . . . . . . 240
Driver Assistance Systems
Driver Assistance Systems . . . 247
Assistance Systems for Parking or Backing . . . . . . . . . . 248
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 250
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 250
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 253
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 254
Lane Change Alert (LCA) . . . . . 255
Lane Departure Warning (LDW) . . . . . . . . . . . . . 256
Lane Keep Assist (LKA) . . . . . . 257

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
194 Driving and Operating
{Warning
Taking your eyes off the road too
long or too often could cause a
crash resulting in injury or death.
Focus your attention on driving.
Refer to the infotainment section for
more information on using that
system and the navigation system,
if equipped, including pairing and
using a cell phone.
Defensive Driving
Defensive driving means “always
expect the unexpected.” The first
step in driving defensively is to wear
the seat belt. See Seat Belts078.
. Assume that other road users
(pedestrians, bicyclists, and
other drivers) are going to be
careless and make mistakes.
Anticipate what they might do
and be ready.
. Allow enough following distance
between you and the driver in
front of you. .
Focus on the task of driving.
Drunk Driving
Death and injury associated with
drinking and driving is a global
tragedy.
{Warning
Drinking and then driving is very
dangerous. Your reflexes,
perceptions, attentiveness, and
judgment can be affected by even
a small amount of alcohol. You
can have a serious —or even
fatal —collision if you drive after
drinking.
Do not drink and drive or ride with
a driver who has been drinking.
Ride home in a cab; or if you are
with a group, designate a driver
who will not drink.
Control of a Vehicle
Braking, steering, and accelerating
are important factors in helping to
control a vehicle while driving.
Braking
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average driver reaction time is
about three-quarters of a second. In
that time, a vehicle moving at
100 km/h (60 mph) travels 20 m
(66 ft), which could be a lot of
distance in an emergency.
Helpful braking tips to keep in mind
include:
. Keep enough distance between
you and the vehicle in front
of you.
. Avoid needless heavy braking.
. Keep pace with traffic.
If the engine ever stops while the
vehicle is being driven, brake
normally but do not pump the
brakes. Doing so could make the
pedal harder to push down. If the
engine stops, there will be some
power brake assist but it will be
used when the brake is applied.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Driving and Operating 195
Once the power assist is used up, it
can take longer to stop and the
brake pedal will be harder to push.
Steering
Electric Power Steering
This vehicle has electric power
steering. It does not have power
steering fluid. Regular maintenance
is not required.
If power steering assist is lost due
to a system malfunction, the vehicle
can be steered, but may require
increased effort.
See your dealer if there is a
problem.
If the steering assist is used for an
extended period of time while the
vehicle is not moving, power assist
may be reduced.
If the steering wheel is turned until it
reaches the end of its travel, and is
held in that position for an extended
period of time, power steering assist
may be reduced.Normal use of the power steering
assist should return when the
system cools down.
See your dealer if there is a
problem.
Curve Tips
.
Take curves at a reasonable
speed.
. Reduce speed before entering a
curve.
. Maintain a reasonable steady
speed through the curve.
. Wait until the vehicle is out of
the curve before accelerating
gently into the straightaway.
Steering in Emergencies
.There are some situations when
steering around a problem may
be more effective than braking.
. Holding both sides of the
steering wheel allows you to turn
180 degrees without removing
a hand.
. Antilock Brake System (ABS)
allows steering while braking.
Off-Road Recovery
The vehicle's right wheels can drop
off the edge of a road onto the
shoulder while driving. Follow
these tips:
1. Ease off the accelerator and then, if there is nothing in the
way, steer the vehicle so that it
straddles the edge of the
pavement.
2. Turn the steering wheel about one-eighth of a turn, until the
right front tire contacts the
pavement edge.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
210 Driving and Operating
Ignition Positions
(Keyless Access)
Vehicles equipped with Keyless
Access have pushbutton starting.The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference
to the Keyless Access system.
See
Remote Keyless Entry (RKE)
System Operation (Key Access)
0 33 orRemote Keyless Entry
(RKE) System Operation (Keyless
Access) 035.
To shift out of P (Park), the ignition
must be on or in ACC/
ACCESSORY, and the brake pedal
must be applied.
Stopping the Engine/LOCK/
OFF (No Indicator Lights) : When
the vehicle is stopped, press
ENGINE START/STOP once to turn
the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP) 0216. If the vehicle is not in P (Park), the
ignition will return to ACC/
ACCESSORY and display the
message SHIFT TO PARK in the
Driver Information Center (DIC).
When the vehicle is shifted into
P (Park), the ignition system will
turn off.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.
The vehicle may have an electric
steering column lock. The lock is
activated when the ignition is turned
off and either front door is opened.
A sound may be heard as the lock
actuates or releases. The steering
column lock may not release with
the wheels turned off center. If this
happens, the vehicle may not start.
Move the steering wheel from left to
right while attempting to start the
vehicle. If this does not work, the
vehicle needs service.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
Driving and Operating 211
If the vehicle must be shut off in an
emergency:1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to
a safe location.
3. Come to a complete stop, shift to P (Park), and turn the
ignition off. On vehicles with an
automatic transmission, the
shift lever must be in P (Park)
to turn the ignition off.
4. Set the parking brake. See Parking Brake 0232.{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
press and hold ENGINE START/
STOP for longer than two seconds,
or press twice in five seconds.
ACC/ACCESSORY (Amber
Indicator Light) : This mode allows
some electrical accessories to be
used when the engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to off after
five minutes to prevent battery
rundown. ON/RUN/START (Green Indicator
Light) :
This mode is for driving and
starting. With the ignition off, and
the brake pedal applied, pressing
the button once will turn the ignition
on. Once engine cranking begins,
release the button. Engine cranking
will continue until the engine starts.
See Starting the Engine 0213.
Service Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off, and
the brake pedal not applied,
pressing and holding the button for
more than five seconds will place
the vehicle in Service Mode. The
instruments and audio systems will
operate as they do when the ignition
is on, but the vehicle will not be able
to be driven. The engine will not
start in Service Mode. Press the
button again to turn the ignition off.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
212 Driving and Operating
Ignition Positions (Key
Access)
Vehicles with Key Access have an
ignition switch with four different
positions.
To shift out of P (Park), the ignition
must be on or in ACC/ACCESSORY
and the regular brake pedal must be
applied.
0 (STOPPING THE ENGINE/LOCK/
OFF) :When the vehicle is stopped,
turn the ignition switch to LOCK/
OFF to turn the engine off. Retained Accessory Power (RAP) will remain
active. See
Retained Accessory
Power (RAP) 0216.
This position locks the ignition and
steering wheel. It also locks the
transmission on automatic
transmission vehicles. The key can
be removed in LOCK/OFF.
The steering can bind with the
wheels turned off center. If this
happens, move the steering wheel
from right to left while turning the
key to ACC/ACCESSORY. If this
does not work, then the vehicle
needs service.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.
If the vehicle must be shut off in an
emergency: 1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force. 2. Shift the vehicle to N (Neutral).
This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to
a safe location.
3. Come to a complete stop, shift to P (Park), and turn the
ignition to LOCK/OFF. On
vehicles with an automatic
transmission, the shift lever
must be in P (Park) to turn the
ignition switch to the LOCK/
OFF position.
4. Set the parking brake. See Parking Brake 0232.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - CRC - 11/3/17
226 Driving and Operating
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.
SeeTow/Haul Mode Light 0149 and
Hill and Mountain Roads 0202.
Also see “Tow/Haul Mode” under
Towing Equipment 0271.
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 Mode0223. 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 0271.
For other forms of grade braking,
see Automatic Transmission 0220
and Cruise Control 0237.
Drive Systems
Four-Wheel Drive
If equipped, four-wheel drive
engages the front axle for extra
traction.
Caution
Do not drive on clean, dry
pavement in 4
mand 4n(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
mor 4nmay:
. 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.