2023 GMC YUKON XL brake

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
244 Driving and Operating
Other Vehicles Entering Your Lane
Super Cruise may not detect a vehicle that
enters your lane, or may not brake fast
enough to avoid a crash. You must manually
brake and steer the vehicle.
Intersections; Vehicles Crossing the Road
Ahead
Super Cruise will not brake the vehicle when
approaching an intersection that is
controlled by a traffic light or stop sign.
Super Cruise will not detect vehicles crossing
the road ahead, including at intersections,
and will not automatically steer or brake to
prevent a collision. You must manually
brake and steer the vehicle.Towing a Trailer
Super Cruise may be used when towing a
trailer when Trailer attached is within size
and weight limits designated in the Trailer
Towing section, see Trailer Towing.
When Super Cruise is used with vehicles
equipped with aftermarket trailer brake
controller, Super Cruise may not disengage
when manual trailer brake is applied.
Do not use Super Cruise Lane Change when
towing a trailer.
For additional information on towing a
trailer, see
Trailer Towing 0281.
Super Cruise on Hills
Do not use Super Cruise while driving on
steep hills.
Super Cruise on Non-Divided Roads
Super Cruise may be available on
non-divided roads that are mapped, outside
of urbanized areas and have a road speed
limit above 45 MPH. Super Cruise Indicator Light SummaryThe steering wheel light bar and instrument
cluster light provide the following important
information about Super Cruise operation:

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
Driving and Operating 245
Steering Wheel Light Bar Instrument Cluster LightSuper Cruise Description
Off OffSuper Cruise is off. There is no automatic steering. Operate the vehicle
manually.
Off WhiteSuper Cruise is available and can be engaged.
Solid Green Solid GreenSuper Cruise is steering. Pay attention to the road and vehicle
operation.
Flashing Blue Solid BlueSuper Cruise is not steering. Operate the vehicle manually. See
“Steering Manually and Changing Lanes”
previously in this section.
Flashing Green Solid GreenSuper Cruise has detected you are not paying sufficiently close
attention to the road. Pay attention to the road. See
“Attention to the
Road” previously in this section.
Flashing Red Solid RedTake over steering immediately. Super Cruise will disengage. See
“Take
Over Alert” previously in this section.
Disengaging Super Cruise
There are two ways to disengage Super
Cruise:
.Press]while your hands are on the
steering wheel. The Super Cruise steering
will disengage.
.Press the brake pedal while your hands
are on the steering wheel. Both Super
Cruise steering and Adaptive Cruise
Control will disengage. Super Cruise Messages
If
^does not appear,]can be pressed
to display a DIC message as to why the
system is unavailable.
Immediately after a disengagement,
pressing the
]within 10 seconds will
display a DIC message with the reason for
Super Cruise disengagement.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
248 Driving and Operating
Super Cruise Message Summary (cont'd)
Unavailable GPS Signal Lost.There is poor reception in isolated areas.
.Reception is being blocked by buildings or other large structures.
Unavailable You Have Taken Vehicle Control
.The brake pedal is being pressed.
.The Adaptive Cruise Control has been canceled or turned off.
Unavailable Sensor Blocked Clear snow, ice, dirt, or other contaminants from the front and rear
areas of the vehicle.
Unavailable Sharp Curve Some curves are too sharp to be navigated by the Super Cruise
system. Super Cruise will be available after the curve is traveled.
Unavailable Over Weight Limit Super Cruise has detected trailer is over allowable weight limit.
Unavailable Trailer Too Unstable Super Cruise has detected that trailer attached is causing unstable
condition. Check trailer and/or load.
Unavailable Trailer Too Large Trailer size (length/width) is larger than supported for Super Cruise
operation.
Unavailable Lane Too Narrow Super Cruise has detected lane width ahead is too narrow for Super
Cruise operation while towing a trailer.
Super Cruise Unavailable Super Cruise is unavailable for reasons not described in other
messages.
Super Cruise Locked Out See Owner’s Manual The driver did not take control of the vehicle when prompted by the
Super Cruise system. The Super Cruise system will be disabled until
the ignition is turned off and back on.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
250 Driving and Operating
Warning (Continued)
.Detect vehicles or objects outside the
area monitored by the system.
.Work at all driving speeds.
.Warn you or provide you with enough
time to avoid a crash.
.Work under poor visibility or bad
weather conditions.
.Work if the detection sensor is not
cleaned or is covered by ice, snow,
mud, or dirt.
.Work if the detection sensor is
covered up, such as with a sticker,
magnet, or metal plate.
.Work if the area surrounding the
detection sensor is damaged or not
properly repaired.
Complete attention is always required
while driving, and you should be ready to
take action and apply the brakes and/or
steer the vehicle to avoid crashes. Audible or Safety Alert Seat
Some driver assistance features alert the
driver of obstacles by beeping. To view
available settings for this feature, touch the
Settings icon on the infotainment home
page. Select
“Vehicle”to display the list of
available options and select “Comfort and
Convenience”.
If equipped with the Safety Alert Seat, the
driver seat cushion may provide a vibrating
pulse alert instead of beeping. To view
available settings for this feature, touch the
Settings icon on the infotainment home
page. Select “Vehicle”to display the list of
available options and select “Collision/
Detection Systems”.
Cleaning
Depending on vehicle options, keep these
areas of the vehicle clean to ensure the best
driver assistance feature performance. Driver
Information Center (DIC) messages may
display when the systems are unavailable or
blocked.
.Front and rear bumpers and the area
below the bumpers
.Front grille and headlamps
.Front camera lens in the front grille or
near the front emblem

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
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Driving and Operating 253
Touch the camera view buttons along the
bottom of the infotainment display to
access each view (if equipped):
1. Front/Rear Standard View
Displays an image of the area in front
or behind the vehicle. To select, touch
Front/Rear Standard View on the
infotainment display when a camera
view is active.
When the hitch guidance is selected,
Rear Standard View will remain visible
across gear changes, otherwise the
view will toggle between Front and
Rear Standard View based on gear
position.
If equipped, the front view camera
also displays when the Park Assist
system detects an object within
30 cm (12 in).
To access this view when in a forward
gear above 12 km/h (8 mph), select
CAMERA on the infotainment display
and select Rear Standard View. The
view will close after 8 seconds and
can be closed early by selecting X,
Home or Back.
2. Front/Rear Top-Down View
Displays a front or rear overhead
view of the vehicle. To view, select
Front/Rear Top-Down View on the
infotainment display when the camera
app is active.
3. Front/Rear side View
Displays a view that shows objects
next to the front or rear sides of the
vehicle. To select, touch Front/Rear
Side View on the infotainment display
when a camera view is active. Touch
the button to toggle between front
and rear camera views. Park Assist and
RCTA overlays are not available when
Front/Rear Side View is active.
4. Hitch View
Displays a zoomed-in view of the hitch
area to assist with aligning the
vehicle’s hitch ball with the trailer
coupler and monitoring the trailer
connection. To view, select Hitch View
on the infotainment display when the
Camera App is active. To access this
view when in a forward gear above
12 km/h (8 mph), select CAMERA on
the infotainment display and select
Hitch View. The view will close after
eight seconds and can be closed earlyby selecting X, Home or Back. Shifting
into P (Park) while in this view will
automatically engage the Electric
Parking Brake (EPB).
5. Surround View
Displays an image of the area
surrounding the vehicle. Surround
View is displayed alongside the
currently selected view when below
12 kph (8 mph). Surround View is
disabled when above 12 kph (8 mph).
6. Camera App Guidance Lines
The Camera App supports three
possible guidance modes: No
Guidance, Vehicle Guidance and
Trailering Guidance. To change
guidance mode, select the appropriate
guidance icon. Depending on the
guidance mode and view selected,
different guidance lines may appear.
A grayed-out icon indicates that
guidance lines are not available.
Certain views do not support Guidance
lines.
.Standard Guidance Lines are
available in Front/Rear Standard
Views, Front/Rear Top-Down Views
and Surround View when the

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
260 Driving and Operating
APA cannot park in all empty parking spots.
The parking spot must:
.Be sufficiently large to fit the vehicle
comfortably.
.Have an adjacent vehicle, wall, or pillar
for the system to align to.
After completely passing an eligible parking
spot, a beep sounds and a red stop symbol
is displayed in the driver information center.
Generally, APA selects the nearest empty
parking spot behind the vehicle, but under
some conditions may select a space that is
further back. Slow down and bring the
vehicle to a complete stop to begin.
Follow the displayed instructions. When
instructed to drive in reverse, shift to
R (Reverse) while holding the brakes. The
steering wheel will vibrate briefly as a
reminder to remove hands from the steering
wheel. Release the brakes slowly when thevibration stops to begin automatic parking.
As the vehicle automatically steers, brakes,
accelerates, and shifts gears into the parking
spot, check surroundings. Be prepared to
stop to avoid vehicles, pedestrians,
or objects.
A progress arrow displays the status of the
parking maneuver. Once automatic parking
is finished and the vehicle has come to a full
stop, FINAL POSITION - PRESS BRAKES
message will be displayed. Press and hold
the brakes, and APA will beep and display a
PARKING COMPLETE message. Shift the
vehicle to P (Park) and apply the parking
brake.
How to Activate Automatic Parallel Spot
Unparking Assist
To activate parallel spot unparking assist,
press the soft-touch button or hard switch
Oafter turning on the vehicle while
leaving it in P (Park) and the parking brake
is off. If the system is able to determine a
path out of the parking spot, a screen will
be displayed for unparking options. Similar
to automatic parking, follow the displayed
instructions and check surroundings as the
vehicle unparks.
Once automatic unparking is finished and
the vehicle has come to a full stop, FINAL
POSITION - PRESS BRAKES message will be
displayed. Press and hold the brakes, and
APA will beep and display a TAKE CONTROL
message. The vehicle is now positioned such
that the path to exit the parking spot is free
of obstructions. Shift into D (Drive) to start
driving away.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
Driving and Operating 261
How to Cancel Automatic Parking or
Automatic Unparking
To cancel automatic parking or automatic
unparking at any time, press
Oor "X" on
the infotainment display and be prepared to
resume control of the vehicle. APA holds the
vehicle until the parking brake or brake is
applied, or the vehicle is shifted into
P (Park). To start driving away, press the
brakes and shift into D (Drive).
Certain vehicle conditions and driver
interferences may also cancel automatic
parking:
.The driver manually steers the vehicle.
.The maximum allowed speed is exceeded.
.There is a failure with the APA system.
.Electronic stability control or antilock
brakes are activated.
.The parking brake is applied or vehicle is
shifted into Park (P).
.Driver unbuckles seat belt and
opens door.
System Limitations
Automatic Parking Assist has certain
limitations. The system cannot:
.Maneuver the vehicle at speeds exceeding
5 km/h (3 mph).
.Maneuver the vehicle on a steep hill.
.Detect whether a parking space is legal or
restricted.
.Detect pavement markings or lines
.Park the vehicle closely lined up with the
vehicle next to it, particularly if the spot
is approached at an angle or if the
parking space is angled.
.Park exactly centered in a very large spot.
.Always detect short curbs.
.Operate while towing any trailer.
.Function the vehicle is raised or lowered
by air suspension (if equipped).
.Detect or automatically react to
approaching traffic when exiting a
parallel spot When the System Does Not Seem to Work
Properly
If the vehicle does not reverse into the
expected parking space, the system could be
maneuvering the vehicle into a previously
detected space.
Reverse Automatic Braking (RAB)
Backing Warning and Reverse Automatic
Braking (RAB)
If equipped, vehicles with Adaptive Cruise
Control (ACC) have the Backing Warning
System and Reverse Automatic Braking (RAB)
system. When in R (Reverse), Backing
Warning alerts of rear objects at vehicle
speeds greater than 8 km/h (5 mph), and
RAB may automatically brake hard at speeds
between 1–32 km/h (0.5–20 mph).
The Backing Warning System will beep once
from the rear when an object is first
detected, or pulse twice on both sides of the
Safety Alert Seat. When the system detects
a potential crash, beeps will be heard from
the rear, or five pulses will be felt on both
sides of the Safety Alert Seat. There may
also be a brief, sharp application of the
brakes.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 5/16/22
262 Driving and Operating
{Warning
The Backing Warning System only
operates at speeds greater than 8 km/h
(5 mph). It does not detect children,
pedestrians, bicyclists, animals, or objects
below the bumper or that are too close
or too far from the vehicle. In some
situations, such as at higher backing
speeds, there may not be enough time
for the short, sharp application of the
vehicle brake system to occur. To prevent
injury, death, or vehicle damage, even
with the Backing Warning System, always
check the area around the vehicle and
check all mirrors before backing.
When the vehicle is in R (Reverse), if the
system detects the vehicle is backing too
fast to avoid a crash with a detected object
behind your vehicle in your path, it may
automatically brake hard to a stop to help
avoid or reduce the harm caused by a
backing crash.
{Warning
RAB may not avoid many types of
backing crashes. Do not wait for the
automatic braking to apply. This system
is not designed to replace driver braking
and only works in R (Reverse) when an
object is detected directly behind the
vehicle. It may not brake or stop in time
to avoid a crash. It will not brake for
objects when the vehicle is moving at
very low speeds. It does not detect
children, pedestrians, bicyclists, animals,
or objects below the bumper or that are
too close or too far from the vehicle. To
prevent injury, death, or vehicle damage,
even with RAB, always check the area
around the vehicle before and while
backing.
Pressing the brake pedal after the vehicle
comes to a stop will release RAB. If the
brake pedal is not pressed soon after the
stop, the Electric Parking Brake (EPB) may be
set. When it is safe, press the accelerator
pedal firmly at any time to override RAB.
{Warning
There may be instances where
unexpected or undesired automatic
braking occurs. If this happens, either
press the brake pedal or firmly press the
accelerator pedal to release the brakes
from the RAB system. Before releasing
the brakes, check the RVC and check the
area around the vehicle to make sure it is
safe to proceed.
Unexpected braking events are possible with
a static installed accessory, such as a bike
rack or hitch-mounted cargo carrier.
Rear Pedestrian Alert
If equipped, and under certain conditions,
this feature can provide alerts for a
pedestrian within the system’s range
directly behind the vehicle. This feature only
works in R (Reverse) below 12 km/h (8 mph),
and detects pedestrians up to 8 m (26 ft)
away during daytime driving. During
nighttime driving, feature performance is
very limited.