Lane change alert GMC YUKON 2020 Owner's Manual

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
4 Introduction
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. See the
features in this manual for
information.
u:Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
_: Flame/Fire Prohibited
H:Flammable
[:Forward Collision Alert
R: Fuse Block Cover Lock
Location
+: Fuses
j:ISOFIX/LATCH System Child
Restraints
Q: Keep Fuse Block Covers
Properly Installed
|: Lane Change Alert
@:Lane Departure Warning
A:Lane Keep Assist
*:Malfunction Indicator Lamp
::Oil Pressure
X:Park Assist
~:Pedestrian Ahead Indicator
O:Power
7: Rear Cross Traffic Alert
I:Registered Technician
/:Remote Vehicle Start
>: Seat Belt Reminders
I:Side Blind Zone Alert
h:Stop/Start
7: Tire Pressure Monitor
d:Traction Control/StabiliTrak/
Electronic Stability Control (ESC)
a: Under Pressure
V:Vehicle Ahead Indicator

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
6 Introduction
1.Air Vents 0180.
2. Head-Up Display (HUD) 0147
(If Equipped).
3.
gTraction Control/Electronic
Stability Control 0226.
jPower Assist Steps 032 (If
Equipped).
XPark Assist Button (If
Equipped). See Assistance
Systems for Parking or Backing
0 242.
ALane Keep Assist (LKA)
0 251 (If Equipped).
0Pedal Adjust Switch (If
Equipped). See Adjustable
Throttle and Brake Pedal
0 201.
4. Turn Signal Lever. See Turn
and Lane-Change Signals
0 169.
Windshield Wiper/Washer
0 116. 5. Favorite Switches (Out of
View). See “Steering Wheel
Controls” in the infotainment
manual.
Volume Switches (Out of View).
See “Steering Wheel Controls”
in the infotainment manual.
6. Hazard Warning Flashers
0168.
7. Instrument Cluster 0126.
8. Shift Lever. See Automatic
Transmission 0213.
Tow/Haul Selector Button. See
Tow/Haul Mode 0218.
Range Selection Mode (If
Equipped). See Manual Mode
0 216.
9. Light Sensor. See Automatic
Headlamp System 0167.
10. Infotainment 0174.
11. Dual Automatic Climate Control
System 0175.
12. Heated and Ventilated Front
Seats 054 (If Equipped). 13. Rear Climate Control Buttons.
SeeRear Climate Control
System 0179.
14. Ignition Positions (Keyless
Access) 0202 or
Ignition Positions (Key Access)
0 204.
15. Steering Wheel Controls. See the infotainment manual.
16. Horn 0116.
17. Steering Wheel Adjustment
0115.
18. Hood Release. See Hood
0 284.
19. Cruise Control 0230.
Adaptive Cruise Control 0232
(If Equipped).
Forward Collision Alert (FCA)
System 0245 (If Equipped).
Heated Steering Wheel 0116
(If Equipped).
20. Trailer Brake Control Panel (If Equipped). See Towing
Equipment 0270.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
148 Instruments and Controls
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 0152 and "Options"
under Instrument Cluster 0126.
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
0 151.
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-13566587) - 2020 - CRC - 4/15/19
Instruments and Controls 149
!:Press to select the display
view. Each press will change the
display view.
D: Lift and hold to brighten the
display. Press and hold to dim the
display. Continue to hold to turn the
display off.
The HUD image will automatically
dim and brighten to compensate for
outside lighting. The HUD
brightness control can also be
adjusted as needed.
The HUD image can temporarily
light up depending on the angle and
position of sunlight on the HUD
display. This is normal.
Polarized sunglasses could make
the HUD image harder to see.
Head-Up Display (HUD) Rotation
Option
This feature allows for adjusting the
angle of the HUD image.
If equipped, this feature allows for
adjusting the angle of the HUD
image. Press
pon the steering
wheel controls while Head-up Display Rotation is highlighted to
enter Adjust Mode. Press
worx
to adjust the angle of the HUD
display. Press
Vto confirm and
save the setting. To cancel the
setting, press
o. The vehicle must
be in P (Park). See Instrument
Cluster 0126.
HUD Views
There are four views in the HUD.
Some vehicle information and
vehicle messages or alerts may be
displayed in any view.
Metric
English
Speed View : This displays digital
speed in English or metric units,
speed limit, vehicle ahead indicator,
Lane Departure Warning/Lane Keep
Assist, and Adaptive Cruise Control
and set speed. Some information
only appears on vehicles that have
these features, and when they are
active.
Metric

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
154 Instruments and Controls
Select Off or On.
Auto Volume
This feature adjusts the volume
based on vehicle speed and
ambient noise.
Select Off, Low, Medium-Low,
Medium, Medium-High, or High.
Maximum Startup Volume
This feature sets the maximum
startup volume. If the vehicle is
started and the volume is greater
than this level, the volume is
adjusted to this level. To set the
maximum startup volume, touch +
or−to increase or decrease.
Audio Cue Volume
This feature sets the volume of
audio files played at system startup
and shutdown.
Select On, then touch + or −to
increase or decrease the volume.
Vehicle
Select and the following may
display:
. Climate and Air Quality .
Collision/Detection Systems
. Comfort and Convenience
. Lighting
. Power Door Locks
. Remote Lock, Unlock, Start
Climate and Air Quality
Select and the following may
display:
.Auto Fan Speed
. Auto Defog
. Auto Rear Defog
Auto Fan Speed
This feature will set the auto fan
speed.
Select Low, Medium, or High.
Auto Defog
When set to On, the auto defog
comes on when the climate control
sensor detects high interior
humidity. Air will be directed to the
windshield.
Select Off or On. Auto Rear Defog
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
. Rear Cross Traffic Alert
. Lane Change 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.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Instruments and Controls 155
Forward Collision System
This setting controls the vehicle
response when detecting a vehicle
ahead of you. The Off setting
disables all FCA and AEB functions.
With the Alert and Brake setting,
both FCA and AEB are available.
The Alert setting disables AEB. See
Automatic Emergency Braking
(AEB)0248.
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 0242.
Select Off, On, or On with Towbar
Attached. Rear Cross Traffic Alert
This allows the feature to be turned
on or off. See
Assistance Systems
for Parking or Backing 0242.
Select Off or On.
Lane Change Alert
This allows the feature to be turned
on or off. See Lane Change Alert
(LCA) 0250.
Select Off or On.
Comfort and Convenience
Select and the following may
display:
. Auto Power Assist Steps
. Auto Memory Recall
. Easy Exit Options
. Chime Volume
. Hands Free Liftgate Control
. Reverse Tilt Mirror
. Auto Mirror Folding
. Auto Wipe in Reverse Gear Auto Power Assist Steps
This allows the feature to be turned
on or off. See
Power Assist Steps
0 32.
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 051.
Select Off or On.
Easy Exit Options
This feature automatically recalls
the previously stored Exit button
position when exiting the vehicle.
See Memory Seats 051.
Select Off or On.
Chime Volume
This allows the selection of the
chime volume level.
Touch + or −to adjust the volume.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Driving and Operating 183
Driving and
Operating
Driving Information
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . 184
Distracted Driving . . . . . . . . . . . . 184
Defensive Driving . . . . . . . . . . . . . 185
Drunk Driving . . . . . . . . . . . . . . . . . 185
Control of a Vehicle . . . . . . . . . . . 186
Braking . . . . . . . . . . . . . . . . . . . . . . . 186
Steering . . . . . . . . . . . . . . . . . . . . . . 186
Off-Road Recovery . . . . . . . . . . . 187
Loss of Control . . . . . . . . . . . . . . . 187
Off-Road Driving . . . . . . . . . . . . . 188
Driving on Wet Roads . . . . . . . . 193
Hill and Mountain Roads . . . . . 193
Winter Driving . . . . . . . . . . . . . . . . 194
If the Vehicle Is Stuck . . . . . . . . 195
Vehicle Load Limits . . . . . . . . . . . 196
Starting and Operating
New Vehicle Break-In . . . . . . . . . 201
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . . . . . 201
Ignition Positions (Keyless Access) . . . . . . . . . . . . . . . . . . . . . 202 Ignition Positions (Key
Access) . . . . . . . . . . . . . . . . . . . . . 204
Starting the Engine . . . . . . . . . . . 206
Engine Heater . . . . . . . . . . . . . . . . 207
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . 209
Shifting Into Park . . . . . . . . . . . . . 209
Shifting out of Park . . . . . . . . . . . 210
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 211
Active Fuel Management . . . . . 211
Extended Parking . . . . . . . . . . . . . 211
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 212
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 212
Automatic Transmission
Automatic Transmission . . . . . . 213
Manual Mode . . . . . . . . . . . . . . . . . 216
Tow/Haul Mode . . . . . . . . . . . . . . . 218
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . 219
Brakes
Antilock Brake
System (ABS) . . . . . . . . . . . . . . . 224
Parking Brake . . . . . . . . . . . . . . . . 225
Brake Assist . . . . . . . . . . . . . . . . . . 225
Hill Start Assist (HSA) . . . . . . . . 225
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 226
Hill Descent Control (HDC) . . . 228
Magnetic Ride Control . . . . . . . . 229
Locking Rear Axle . . . . . . . . . . . . 229
Automatic Level Control . . . . . . 229
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 230
Adaptive Cruise Control . . . . . . 232
Driver Assistance Systems
Driver Assistance Systems . . . 240
Assistance Systems for Parking or Backing . . . . . . . . . . 242
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 245
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 245
Automatic Emergency Braking (AEB) . . . . . . . . . . . . . . . 248
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 249
Lane Change Alert (LCA) . . . . . 250
Lane Keep Assist (LKA) . . . . . . 251
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 254
Recommended Fuel (L83 5.3L V8 Engine) . . . . . . . . . . . . . . . . . . 254

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Driving and Operating 239
Warning (Continued)
to use the brakes if necessary.
Select an appropriate speed while
driving in curves.
ACC may operate differently in a
sharp curve. It may reduce the
vehicle speed if the curve is too
sharp.
When following a vehicle and
entering a curve, ACC may not
detect the vehicle ahead and
accelerate to the set speed. When
this happens, the vehicle ahead
indicator will not appear.
ACC may detect a vehicle that is
not in your lane and apply the
brakes.
ACC may occasionally provide an
alert and/or braking that is
considered unnecessary. It could
respond to vehicles in different
lanes, signs, guardrails, and other
stationary objects when entering or
exiting a curve. This is normal
operation. The vehicle does not
need service. Other Vehicle Lane Changes
ACC will not detect a vehicle ahead
until it is completely in the lane. The
brakes may need to be manually
applied.
Do Not Use ACC on Hills and
When Towing a Trailer

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Driving and Operating 245
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 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 Park 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 Park Assist can be
set to Off, On, or On with Towbar
through vehicle personalization. See
“Park Assist” underVehicle
Personalization 0152. If Park Assist
is turned off through vehicle
personalization, the Park Assist
button will be disabled. To turn the
Park Assist on again, select On in
vehicle personalization. The On with
Towbar setting allows for Park
Assist to work properly with an
attached trailer hitch. Turn off Park
Assist when towing a trailer.
To turn the RPA symbols, guidance
lines, or Rear Cross Traffic Alert on
or off, see “Rear Camera” and
“Collision/Detection Systems” under
Vehicle Personalization 0152. On some models, select the guidance
lines button on the infotainment
display to turn them on or off.
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 Automatic Emergency
Braking (AEB) can help to avoid a
crash or reduce crash damage.
Forward Collision Alert
(FCA) System
If equipped, the FCA system may
help to avoid or reduce the harm
caused by front-end crashes. When
approaching a vehicle ahead too
quickly, FCA provides a red flashing
alert on the windshield and rapidly
beeps or pulses the driver seat.
FCA also lights an amber visual
alert if following another vehicle
much too closely.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
Driving and Operating 247
Without Head-Up Display
When your vehicle approaches
another detected vehicle too rapidly,
the red FCA display will flash on the
windshield. Also, eight rapid
high-pitched beeps will sound from
the front, or both sides of the Safety
Alert Seat will pulse five times.
When this Collision Alert occurs, the
brake system may prepare for driver
braking to occur more rapidly which
can cause a brief, mild deceleration.
Continue to apply the brake pedal
as needed. Cruise control may be
disengaged when the Collision Alert
occurs. Tailgating Alert
The vehicle-ahead indicator will
display amber when you are
following a vehicle ahead much too
closely.
Selecting the Alert Timing
The Collision Alert control is on the
steering wheel. Press
[/3to
set the FCA timing to Far, Medium,
Near, or on some vehicles, Off. The
first button press shows the current
setting on the DIC. Additional button
presses will change this setting. The
chosen setting will remain until it is
changed and will affect the timing of
both the Collision Alert and the
Tailgating Alert features. The timing
of both alerts will vary based on
vehicle speed. The faster the
vehicle speed, the farther away the
alert will occur. Consider traffic and
weather conditions when selecting the alert timing. The range of
selectable alert timing may not be
appropriate for all drivers and
driving conditions.
If your vehicle is equipped with
Adaptive Cruise Control (ACC),
changing the FCA timing setting
automatically changes the ACC
following gap setting (Far, Medium,
or Near).
Unnecessary Alerts
FCA may provide unnecessary
alerts for turning vehicles, vehicles
in other lanes, objects that are not
vehicles, or shadows. These alerts
are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to
operate properly, this may correct
the issue:
.
Clean the outside of the
windshield in front of the
rearview mirror.
. Clean the entire front of the
vehicle.