GMC GMC Hummer EV 2024 User manual

GMC Hummer EV Owner Manual (GMNA-Localizing-MidEast-16639039) -
2024 - CRC - 3/20/23
Contents
Introduction .............................. 1
Keys, Doors, and Windows . . . . . . . . . . . . . . . 6
Seats and Restraints . . . . . . . . . . . . . . . . . . . . . 38
Storage ................................. 86
Instruments and Controls . . . . . . . . . . . . . . . 94
Lighting ................................ 129
Infotainment System . . . . . . . . . . . . . . . . . . . 136
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 162
Driving and Operating . . . . . . . . . . . . . . . . . . 167
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Service and Maintenance . . . . . . . . . . . . . . . 343
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . 348
Customer Information . . . . . . . . . . . . . . . . . . 351
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
eCall ................................... 363
Connected Services . . . . . . . . . . . . . . . . . . . . . 365
Index. . . . . . . . . . . . . . . . . . . . . . . . . . 368
Introduction
The names, logos, emblems, slogans, vehicle
model names, and vehicle body designs
appearing in this manual including, but not
limited to, GM, the GM logo, GMC, the GMC
Truck Emblem, and HUMMER are trademarks
and/or service marks of General Motors LLC,
its subsidiaries, affiliates, or licensors.
This manual describes features that may or
may not be on the vehicle because of
optional equipment that was not purchased
on the vehicle, model variants, country
specifications, features/applications that may
not be available in your region, or changes
subsequent to the writing of this owner’s
manual, including changes in standard or
optional content.
Refer to the purchase documentation
relating to your specific vehicle to confirm
the features.
Keep this manual in the vehicle for quick
reference.
Using this Manual
To quickly locate information about the
vehicle, use the Index in the back of the
manual. It is an alphabetical list of what is
in the manual and the page number where
it can be found.
Danger, Warning, and Caution
Warning messages found on vehicle labels
and in this manual describe hazards and
what to do to avoid or reduce them.
{Danger
Danger indicates a hazard with a high
level of risk which will result in serious
injury or death.
Litho in U.S.A.
Part No. 85143624 ©2023 General Motors LLC. All Rights Reserved.

GMC Hummer EV Owner Manual (GMNA-Localizing-MidEast-16639039) -
2024 - CRC - 3/20/23
2 Introduction
{Warning
Warning indicates a hazard that could
result in injury or death.
Caution
Caution indicates a hazard that could
result in property or vehicle damage.
A circle with a slash through it is a safety
symbol which means “Do not,” “Do not do
this,”or “Do not let this happen.”
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M:Shown when the owner’s manual has
additional instructions or information.
*:Shown when the service manual has
additional instructions or information.
0:Shown when there is more information
on another page — “see page.”
Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features throughout the
owner’s manual for more 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
[:Energy Usage and Charge Mode
Selection
_:Flame/Fire Prohibited
H:Flammable
g:First Responder
[:Forward Collision Alert
R:Fuse Block Cover Lock Location
+:Fuses
_:High Voltage
j:ISOFIX/LATCH System Child Restraints
Q:Keep Fuse Block Covers Properly
Installed
|:Lane Change Alert
@:Lane Departure Warning
A:Lane Keep Assist
X:Park Assist
~:Pedestrian Ahead Indicator
O:Power
7:Rear Cross Traffic Alert
I:Registered Technician
/:Remote Vehicle Start
h:Risk of Electrical Fire
>:Seat Belt Reminders

GMC Hummer EV Owner Manual (GMNA-Localizing-MidEast-16639039) -
2024 - CRC - 3/20/23
Introduction 3
Z:Service Vehicle Soon
I:Side Blind Zone Alert
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak/Electronic
Stability Control (ESC)
a:Under Pressure
k:Vehicle Ahead Indicator
]:Vehicle Ready

GMC Hummer EV Owner Manual (GMNA-Localizing-MidEast-16639039) -
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4 Introduction
Instrument Panel Overview

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Introduction 5
1. Air Vents 0165.
2. Electric Parking Brake 0195.
3. Underhood Storage (eTrunk™)087.
Power Release Tailgate (If Equipped). See
Tailgate 019.
Power Swing Gate (If Equipped). See
Swing Gate 022.
Lane Keep Assist (LKA) 0243 (If
Equipped).
Express Window Down Button (If
Equipped). See Power Windows 030.
Exterior Cargo Lamps (Pickup) 0132 (If
Equipped).
110V Power Outlet Enable (If Equipped).
See Power Outlets 097.
4. Turn Signal Lever. See Turn and
Lane-Change Signals 0132.
Exterior Lamp Controls 0129.
5. Regenerative Braking 0197.
6. Instrument Cluster 0102.
7. Windshield Wiper/Washer 096.
8. Infotainment. See Introduction 0136.
9. Light Sensor. See Automatic Headlamp
System 0131.
10. Dual Automatic Climate Control System
0162.
Heated and Ventilated Front Seats 044
(If Equipped).
11. Heated Steering Wheel 095.
Locking Rear Axle 0205.
Locking Front Axle 0206.
Hazard Warning Flashers 0132.
Traction Control/Electronic Stability
Control 0198.
Park Assist 0229.
Automatic Parking Assist (APA) 0230.
12. USB Port 0143.
13. Wireless Charging 099.
14. Driver Mode Control 0200.
15. Shift Lever. See Electric Drive Unit 0190.
16. Trailer Brake Control Panel. See Towing
Equipment 0265.
17. Power Button 0186.
18. Steering Wheel Controls 0137.
19. Horn 095.
20. Steering Wheel Adjustment 095.
21. Dimmer Switch. See Instrument Panel
Illumination Control 0133.
22. Adaptive Cruise Control 0210 (If
Equipped).
Forward Collision Alert (FCA) System
0235 (If Equipped).
23. Hood Release. See Hood 0278.
24. Instrument Panel Fuse Block (Right)
0298 or
Instrument Panel Fuse Block (Left) 0296.

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6 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Key ............................. 7
Remote Key Operation . . . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 12
Door Locks .............................. 13
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 14
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 14
Automatic Door Locks . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 15
Safety Locks ............................ 15
Digital Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Doors
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Swing Gate ............................. 22
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 24
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 24
Steering Column Lock . . . . . . . . . . . . . . . . . . . 25
Immobilizer Operation . . . . . . . . . . . . . . . . . . 25
Exterior Mirrors
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 26
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 27
Automatic Dimming Mirror . . . . . . . . . . . . . 27
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . 27
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 28
Automatic Dimming Rearview Mirror . . . 28
Rear Camera Mirror . . . . . . . . . . . . . . . . . . . . 28
Windows
Windows ............................... 30
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 30
Rear Windows . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Roof
Roof Panel .............................. 32
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
remote key is dangerous and children or
others could be seriously injured or killed.
They could operate the power windows
or other controls or make the vehicle
move. The windows will function with
the remote key in the vehicle, and
children or others could be caught in the
path of a closing window. Do not leave
children in a vehicle with a remote key.

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Keys, Doors, and Windows 7
The mechanical key inside the remote key
is used for the driver door and glove box.
To remove the mechanical key, press the
button on the side of the remote key near
the bottom, and pull the mechanical key
out. Never pull the mechanical key out
without pressing the button.
The mechanical key may have a bar-coded
key tag that the dealer or qualified
locksmith can use to make new keys. store
this information in a safe place, not in the
vehicle.
See your dealer if a replacement key or
additional key is needed.
If it becomes difficult to turn a key, inspect
the key blade for debris. Periodically clean
with a brush or pick.
With an active OnStar or connected service
plan, an OnStar Advisor may remotely
unlock the vehicle. See OnStar Overview
0358.
If equipped with memory seats, remote keys
1 and 2 are linked to seating positions of
memory 1 or 2. See Memory Seats 042.
Remote Key
If there is a decrease in the remote key
operating range:
.Check the distance. The remote key may
be too far from the vehicle.
.Check the location. Other vehicles or
objects may be blocking the signal.
.Check the remote key’s battery. See
“Battery Replacement”under Remote Key
Operation 07.
.If the remote key is still not working
correctly, see your dealer or a qualified
technician for service.
Remote Key Operation
The Keyless Access system allows for vehicle
entry when the remote key is within 1 m
(3 ft). See “Keyless Access Operation”later
in this section.
The remote key functions may work up to
60 m (197 ft) away from the vehicle.
Other conditions can affect the performance
of the remote key. See Remote Key 07.
Pickup Shown, SUV Similar
Q:Press to lock all doors.
If enabled, the turn signal lamps flash once
on the second press to indicate locking has
occurred. If enabled, the horn chirps when

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8 Keys, Doors, and Windows
Qis pressed again within three seconds. To
view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
Pressing Qarms the alarm system. See
Vehicle Alarm System 024.
With power folding mirrors, double pressing
and holding Qfor one second will fold the
mirrors, if enabled. Double press and hold
Kfor one second to unfold the mirrors. To
view available settings from the
infotainment screen, touch Settings >
Vehicle > Comfort and Convenience.
K:Press once to unlock only the driver
door. If Kis pressed again within
three seconds, all remaining doors unlock.
The interior lamps may come on and stay
on for 20 seconds or until the vehicle is
started.
If enabled, the turn signal lamps flash twice
to indicate unlocking has occurred.
If enabled, the exterior lamps may turn on.
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
Pressing Kon the remote key disarms the
alarm system. See Vehicle Alarm System
024.
Double press and hold Kuntil the windows
fully open, if remote window operation is
enabled. To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
x/{:Press twice to open the tailgate/
swing gate. The vehicle must be in P (park).
m:Press twice to open the hood. Press
twice and hold to close the hood. In order
to open or close remote key must be within
30m (100ft). The vehicle must be in P (park).
W:Press to stop charging the vehicle.
S:Press Stwice from outside the
vehicle to remote start the vehicle. The
vehicle cannot be started if a remote key is
left inside the vehicle. See Remote Vehicle
Start 012.
Keyless Access Operation
The Keyless Access system allows for doors,
tailgate/swing gate, and hood to be
accessed without removing the remote key
or digital key from your pocket, purse,
briefcase, etc. The remote key or digital key
must be within 1 m (3 ft) of the tailgate/
swing gate, hood, or door being opened.
If the vehicle has this feature, there will be
a button on the outside door handles.
Keyless Access can be programmed to
unlock all doors on the first lock/unlock
press from the driver door. To view available
settings from the infotainment screen, touch
Settings > Vehicle > Remote Lock, Unlock,
Start.
Remote keys 1 and 2 are linked to seating
positions of memory 1 or 2. See Memory
Seats 042.
Keyless Unlocking/Locking from the
Driver Door
When the doors are locked and the remote
key or digital key is within 1 m (3 ft) of the
door handle, pressing the lock/unlock button
on the driver door handle will unlock the
driver door. If the lock/unlock button is
pressed again within five seconds, the doors,
tailgate/swing gate, and hood will unlock.

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Keys, Doors, and Windows 9
Driver Side Shown, Passenger Side Similar
Pressing the lock/unlock button will cause
all doors to lock if any of the following
occur:
.It has been more than five seconds since
the first lock/unlock button press.
.Two lock/unlock button presses were
used to unlock all doors.
.Any vehicle door has been opened and all
doors are now closed.
Keyless Unlocking/Locking from the
Passenger Doors
When the doors are locked and the remote
key or digital key is within 1 m (3 ft) of the
door handle, pressing the lock/unlock button
on a passenger door handle will unlock all
doors. Pressing the lock/unlock button will
cause all doors to lock if any of the
following occur:
.The lock/unlock button was used to
unlock all doors.
.Any vehicle door has been opened and all
doors are now closed.
Disable/Enable Keyless Unlocking of Exterior
Door Handles, Tailgate/Swing Gate,
and Hood
Keyless unlocking of the exterior door
handles, tailgate/swing gate, and hood can
be disabled and enabled.
Disabling Keyless Unlocking:
With the vehicle off, press and hold Qand
Kon the remote key at the same time for
approximately three seconds. The turn signal
lamps will flash four times quickly to
indicate access is disabled. Using any
exterior handle to unlock the doors, open
the tailgate/swing gate, or open the hood
will cause the turn signal lamps to flash four
times quickly, indicating access is disabled.
If disabled, disarm the alarm system before
starting the vehicle.
Enabling Keyless Unlocking:
With the vehicle off, press and hold Qand
Kon the remote key at the same time for
approximately three seconds. The turn signal
lamps will flash twice quickly to indicate
access is enabled.
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
Passive Locking
The Keyless Access system will lock the
vehicle several seconds after all doors are
closed, if the vehicle is off and at least one
remote key or digital key has been removed
from the interior, or none remain in the
interior.
If other electronic devices interfere with the
remote key or digital key signal, the vehicle
may not detect the remote key or digital
key inside the vehicle. If passive locking is
enabled, the doors may lock with the
remote key or digital key inside the vehicle.
Do not leave the remote key or digital key
in an unattended vehicle.
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.

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10 Keys, Doors, and Windows
Temporary Disable of Passive Locking
Temporarily disable passive locking by
pressing and holding Kon the interior door
switch with a door open for at least
four seconds, or until three chimes are
heard. Passive locking will then remain
disabled until Qon the interior door is
pressed, or until the vehicle is turned on.
Remote Left In Vehicle Alert
When the vehicle is turned off and a remote
key or digital key is left in the vehicle, the
horn will chirp three times after all doors
are closed. To view available settings from
the infotainment screen, touch Settings >
Vehicle > Remote Lock, Unlock, Start.
Remote Removed From Vehicle Alert
If the vehicle is on with a door open, and
then all doors are closed, the vehicle will
check for remote keys and digital keys
inside. If a remote key or digital key is not
detected, the Driver Information Center (DIC)
will display NO KEY FOUND and the horn
will chirp three times. This occurs only once
each time the vehicle is driven. To view
available settings from the infotainment
screen, touch Settings > Vehicle > Remote
Lock, Unlock, Start.
Keyless Tailgate/Swing Gate Opening
Press the touchpad on the tailgate/swing
gate to open the tailgate/swing gate when
all doors are unlocked, or when the remote
key or digital key is within 1m (3 ft).
See Tailgate 019.
Keyless Hood Opening
Press the touchpad in the center of the front
fascia once to open the hood when all doors
are unlocked, or when the remote key or
digital key is within 1m (3 ft).
See Hood 016.
Key Access
To access a vehicle with a weak remote key
battery, see Door Locks 013.
Programming Remote Keys to the
Vehicle
Only remote keys programmed to the
vehicle will work. If a remote key is lost or
stolen, a replacement can be purchased and
programmed through your dealer. The
vehicle can be reprogrammed so that lost or
stolen remote keys no longer work. Each
vehicle can have up to eight remote keys
programmed to it.
Starting the Vehicle with a Low Remote
Key Battery
For improved vehicle security, the remote
key is equipped with a motion sensor. When
starting the vehicle, if the remote key has
been idle for an extended period of time,
the DIC may display KEY IN SLEEP MODE,
MOVE KEY, THEN START. Move the remote
key slightly and try starting the vehicle.
If the remote key battery is weak or if there
is interference with the signal, the DIC may
display NO KEY FOUND, REPLACE BATTERY IN
KEY or NO REMOTE KEY WAS DETECTED
PLACE KEY IN KEY POCKET THEN START YOUR
VEHICLE when starting the vehicle.

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Keys, Doors, and Windows 11
To start the vehicle:
1. Place the remote key in the rear
cupholder.
2. With the vehicle in P (Park) or N (Neutral)
press the brake pedal and POWER.
Replace the remote key battery and
charge the digital key battery as soon as
possible.
Battery Replacement
{Warning
Never allow children to play with the
remote key. The remote key contains a
small battery, which can be a choking
(Continued)
Warning (Continued)
hazard. If swallowed, internal burns can
occur, resulting in severe injury or death.
Seek medical attention immediately if a
battery is swallowed.
{Warning
To avoid personal injury, do not touch
metal surfaces on the remote key when
it has been exposed to extreme heat.
These surfaces can be hot to the touch at
temperatures above 59 °C (138 °F).
Caution
When replacing the battery, do not touch
any of the circuitry on the remote key.
Static from your body could damage the
remote key.
Caution
Always replace the battery with the
correct type. Replacing the battery with
an incorrect type could potentially create
(Continued)
Caution (Continued)
a risk of battery explosion. Dispose of
used batteries according to instructions
and local laws. Do not attempt to burn,
crush, or cut the used battery, and avoid
exposing the battery to environments
with extremely low air pressures or high
temperatures.
Caution
If the remote key is not reassembled
properly, liquids could enter the housing
and damage the circuitry, resulting in a
remote key malfunction and/or failure. To
prevent damage, always follow the steps
for remote key reassembly in this manual
to ensure the remote key is sealed
properly whenever the remote key is
opened.
Replace the battery in the remote key soon
if the DIC displays REPLACE BATTERY IN
REMOTE KEY.

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12 Keys, Doors, and Windows
To replace the battery:
1. Press the button on the side of the
remote key near the bottom and pull the
mechanical key out. Never pull the
mechanical key out without pressing the
button.
2. Use the mechanical key blade in the slot
to remove the battery cover by hand.
3. Remove the battery cover.
4. Pull the seal by pulling on the tab to
access the battery.
5. Remove the old battery. Do not use a
metal object.
6. Insert the new battery, positive side
facing up. Replace with a CR2450 Lithium
or equivalent battery.
7. Place the seal back into the groove
around the battery compartment.
8. Replace the battery cover by snapping it
back into the remote key.
9. Reinsert the mechanical key.
Remote Vehicle Start
This feature starts the heating or air
conditioning systems and the rear window
defogger from outside the vehicle.
Use remote start to heat or cool the interior
when the vehicle is plugged in to maximize
electric range by utilizing electricity from
the electrical outlet. Normal system
operation will return after the vehicle has
been turned on.
S:This button is on the remote key.
The climate control system will use the
previous settings during a remote start. The
rear defog may come on during a remote

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Keys, Doors, and Windows 13
start based on cold ambient conditions. The
rear defog indicator light will not come on
during a remote start.
Laws in some local communities may restrict
the use of remote starters. For example,
some laws require a person using remote
start to have the vehicle in view. Check local
regulations for any requirements.
The vehicle cannot be remote started if:
.The remote key is in the vehicle.
.The hood is open.
.The vehicle has been running for
60 minutes after a remote start.
.The hazard flashers are on.
.The vehicle is not in P (Park).
.The vehicle is already started.
If the battery level is low, do not use the
remote start feature. The battery may fully
deplete.
The remote key range may be less while the
vehicle is running.
Other conditions may affect the range and
performance of the remote key. See Remote
Key 07.
Starting the Vehicle Using Remote Start
Press Stwice on the remote key. The turn
signal lamps will flash to confirm the
remote start request was received. During
the remote start, the parking lamps will
remain on as long as the vehicle is on.
The vehicle will turn off after 60 minutes,
unless you stop the remote start before
remote start cycle has completed or the
vehicle is turned on.
Press the brake pedal and press POWER O
to drive the vehicle.
Extending Remote Start Time
Remote start can be used for up to
60 minutes of total remote start time.
After a remote start of 60 minutes,
or multiple shorter time starts totaling
60 minutes have been used, the vehicle
must be started and then turned off before
the remote start can be used again.
Canceling a Remote Start
To cancel a remote start, do one of the
following:
.Press S. The parking lamps will turn off.
.Turn on the hazard warning flashers.
.Turn the vehicle on and then off.
Door Locks
{Warning
Unlocked doors can be dangerous.
.Passengers, especially children, can
easily open the doors and fall out of a
moving vehicle. The doors can be
unlocked and opened while the vehicle
is moving. The chance of being thrown
out of the vehicle in a crash is
increased if the doors are not locked.
So, all passengers should wear seat
belts properly and the doors should be
locked whenever the vehicle is driven.
.Young children who get into unlocked
vehicles may be unable to get out.
A child can be overcome by extreme
heat and can suffer permanent injuries
or even death from heat stroke.
Always lock the vehicle whenever
leaving it.
.Outsiders can easily enter through an
unlocked door when you slow down
or stop the vehicle. Locking the doors
can help prevent this from happening.

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14 Keys, Doors, and Windows
To lock or unlock the doors from outside the
vehicle:
.Press Qor Kon the remote key. See
Remote Key Operation 07.
.Use the mechanical key in the
driver door.
To lock or unlock the doors from inside the
vehicle:
.Press Qor Kon the power door lock
switch.
.Pulling an interior door handle will unlock
the door. Pulling the door handle again
unlatches it.
Keyless Access
The remote key must be within 1 m (3 ft) of
the eTrunk™or door being opened or
locked. Press the button on the door handle
to open. See “Keyless Access Operation”in
Remote Key Operation 07.
Free-Turning Locks
The door key lock cylinder turns freely when
either the wrong key is used, or the correct
key is not fully inserted. The free-turning
door lock feature prevents the lock cylinder
from being forced open. To reset the lock
cylinder, ensure the correct key is fully
inserted into the lock cylinder. Rotate the
key until you feel the lock cylinder click
back into place. Remove the key and
reinsert fully, rotate the key to unlock the
vehicle.
Power Door Locks
Press Qor Kon the Remote Key. See
Remote Key Operation 07.
Q:Press to lock the doors. The indicator
light in the switch will illuminate when
locked.
K:Press to unlock the doors.
Delayed Locking
This feature delays the locking of the doors
until five seconds after all doors are closed.
When Qis pressed on the power door lock
switch while the door is open, a chime will
sound three times indicating delayed locking
is active.

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Keys, Doors, and Windows 15
The doors will lock automatically
five seconds after all doors are closed. If a
door is reopened before that time, the
five-second timer will reset when all doors
are closed again.
Press Qon the door lock switch again or
press Qon the remote key to lock the
doors immediately.
This feature can be programmed. To view
available settings from the infotainment
screen, touch Settings > Vehicle > Power
Door Locks.
Automatic Door Locks
The vehicle is programmed to lock the doors
automatically when all doors are closed, the
vehicle is on, and the vehicle is shifted out
of P (Park).
If a vehicle door is unlocked, and then
opened and closed, the doors will lock either
when your foot is removed from the brake
or the vehicle speed becomes faster than
13 km/h (8 mph).
To unlock the doors:
.Press Kon the power door lock switch.
.Shift the vehicle into P (Park).
Automatic door locking can be programmed.
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Power Door Locks.
Lockout Protection
This feature protects you from locking
remote keys in the vehicle.
When driver door is open, the lock button is
pressed, and the vehicle is on, all of the
doors will lock and then the driver door will
unlock.
If the vehicle is off and locking is requested
while a door is open, when all doors are
closed the vehicle will check for remote keys
inside. If a remote key is detected and the
number of remote keys inside has not
reduced, the driver door will unlock and the
horn will sound three times.
This can be manually overridden by pressing
and holding Qon the power door lock
switch.
Safety Locks
The rear door safety locks prevent
passengers from opening the rear doors
from inside the vehicle.
Press {vto activate the safety locks on
the rear doors. The indicator light in the
switch will illuminate when activated.
The rear door power windows are also
disabled. See Power Windows 030.
Press {vagain to deactivate the safety
locks.
If an inside rear door handle is being pulled
at the same time the safety lock is
deactivated, only that door will remain

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16 Keys, Doors, and Windows
locked and the indicator light may flash.
Release the handle, then press the safety
lock twice to deactivate the safety locks.
Digital Key
If equipped and enabled, the Digital Key
feature allows you to access and operate
the vehicle using a smartphone or other
compatible device.
Only certain smartphones and devices
support Digital Key. Please see the myGMC
mobile app to determine if your device is
compatible.
If the smartphone battery is low, or your
phone is not detected while trying to start
the vehicle, the Driver Information Center
(DIC) may display NO KEY FOUND. Charge
the smartphone battery as soon as possible.
You can use the myGMC mobile app to pair,
manage, or delete your Digital Key.
Setting up Digital Key
Digital Key is only available with an OnStar
account associated with the vehicle.
1. Log in to your Digital Key account in the
myGMC mobile app. See Connections
0365.
2. Select the Digital Key menu option.
3. Follow the steps on your screen to pair
your phone.
Using Your Digital Key
Digital Key allows you to:
.Passively lock and unlock the vehicle
doors, and access the front or rear
compartments, without a remote key.
.Start the vehicle with your phone present
inside the vehicle.
.Perform remote key functions such as
lock, unlock, and remote start.
Doors
Hood
Clear any snow from the hood before
opening.
{Warning
You or others could be injured if caught
in the path of the power hood. Make
sure there is no one in the way of the
hood as it is opening and closing.
Power Hood Operation
The vehicle must be in P (Park), doors
unlocked, or the remote key in range of the
vehicle to operate the power hood.
To open or close the power hood, do one of
the following:
.To open the hood, press don the
instrument panel to the left of the
steering wheel once.
To close the hood, press and hold d
until the hood is closed.

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Keys, Doors, and Windows 17
.To open or close the hood, press the
touchpad in the center of the front fascia
once, when the remote key is within
1 m (3 ft).
.To open the hood with the remote key,
press monce, and then immediately
press again and hold for at least
one second.
To close the hood with the remote key,
press monce, and then immediately
press again and hold until the hood is
closed. See Remote Key Operation 07.
Open Settings
Maximum
The hood opens to the full open position.
Use caution in this mode to avoid hitting
overhead obstructions.
Custom
The hood opens to a pre-programmed height
below maximum position. To adjust the
hood open angle between the preset height
and full open, manually move the hood to a
desired position. Press duntil the exterior
lights flash and a chime sounds. The hood
cannot be set below the preset minimum
programmable height. If no exterior lights
flash or sound, then the height adjustment
may be too low.
The hood is restricted to only open to a
default height when the vehicle is on a
steep downhill grade.
Off (Manual Operation)
Press and release the touch pad on the front
fascia. Lift the hood to open to a desired
height.
To close the hood, pull the hood down until
it is secured in the latch. When the hood is
in the latch, the hood will automatically
close.
Obstacle Detection Features
If the hood encounters an obstacle during a
power open or close cycle, the hood will
automatically reverse direction and move a
short distance away from the obstacle. After
removing the obstruction, the power hood
operation can be used again.
If the vehicle is locked while the hood is
closing and an obstacle is encountered that
prevents the hood from completely closing,
the horn will sound an alert that the hood
did not close.
Falling Hood Detection
If the power hood encounters excess weight
or a possible mechanical failure, a repetitive
chime will sound and the hood will close
automatically after a power opening cycle.
Interfering with the power hood motion or
manually closing the hood too quickly may
activate the falling hood detection feature.
Allow the hood to complete its operation
and wait a few seconds before manually
closing the hood.
If the hood continues to automatically close
after opening, see your dealer for service
before using the power hood.

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18 Keys, Doors, and Windows
Operating the Hood when there is no
Electrical Power
The manual release cable should only be
used for service and/or emergency use, such
as loss of vehicle electrical power. Do not
store any cargo in the area near the hood
release cable.
To open the hood:
1. Firmly pull the hood release cable twice
to release the hood. It is on the lower
left side of the instrument panel.
3. Go to the front of the vehicle and lift
the hood to the desired height.
To close the hood:
1. Before closing the hood, make sure all
cargo is properly stowed and does not
go above or across the hood seal.
2. Pull the hood down until it is secured in
the latch.
3. Check to make sure the hood is latched
completely. Push down on the hood to
latch if it does not latch completely.
Repeat this step with additional force if
necessary.
When the hood is not latched, a message
will display on the Driver Information Center
(DIC) and the vehicle will not be able to
shift out of park. To override this function,
press and hold the shift button and brake
pedal until the DIC message shifter unlock
complete is displayed. The vehicle’s speed
will be limited to 42 km/h (26 mph) when
the hood is not completely closed.
If the vehicle has lost power, and the hood
is open when the power is restored, the
power hood and power closing latch will not
operate. To allow powered hood operation
again, the hood must be manually closed
and fully latched.
{Warning
Do not drive the vehicle if the hood is
not latched completely. The hood could
open fully, block your vision, and cause a
crash. You or others could be injured.
Always close the hood completely before
driving.
Emergency Hood Release Button
The underhood compartment is equipped
with a glow-in-the-dark emergency hood
release button. This button will glow
following exposure to light. Press the button
to open the hood from inside the underhood
compartment.

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Keys, Doors, and Windows 19
{Warning
The emergency hood release button
inside the underhood compartment will
not function when the battery is
disconnected or depleted. To avoid
personal injury or death, always keep the
hood fully closed and latched when
storing the vehicle. If the hood is not
latched, a person could climb into the
underhood compartment and
inadvertently close the hood. People
should never climb inside the underhood
compartment. Never shut the hood when
a person is inside.
Tailgate
{Warning
Make sure there is no one in the way of
the power tailgate as it is opening and
closing, and keep hands away from the
tailgate hinges when in use. You or
others could be injured if caught in the
path of the power tailgate or tailgate
hinges.
Caution
To avoid damage to the tailgate, make
sure the area behind the tailgate is clear
before opening it.
In the case of a dead battery, the tailgate
can be opened manually. Contact your
dealer or Roadside Assistance.
To lock or unlock the tailgate, use the
remote key or the key. See Remote Key
Operation 07.
The vehicle must be in P (Park).
Switches in the inner tailgate prevent the
primary tailgate from being opened when
the inner tailgate is not fully closed. When
the primary or inner tailgate are open, a
message may display on the Driver
Information Center (DIC).
To open the primary tailgate, use one of the
following methods:

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20 Keys, Doors, and Windows
.Press xtwice quickly on the remote
key until the tailgate moves. See Remote
Key Operation 07. The tailgate can be
opened if the remote key is within
1 m (3 ft).
.Press 5on the instrument panel to
the left of the steering wheel.
.Press Button 2 to open the primary
tailgate. Use the top of the tailgate to
pull against if assistance is required.
A locked tailgate can be opened if the
remote key is within 1 m (3 ft).
To close the primary tailgate, firmly push it
upward until it latches. Pull it back to be
sure it is latched securely.
To open the inner tailgate:
Press Button 1 on the tailgate handle after
unlocking all doors. Pull the top of the
tailgate to open.
The inner tailgate may be equipped with an
enable/disable feature to prevent the inner
tailgate from being opened when a hitch or
other equipment is installed that could
damage the inner tailgate. To disable the
inner tailgate from opening, ensure that the
remote key is within 1 m (3 ft) of the rear
bumper and then hold Button 1 on the
tailgate handle for seven seconds. The tail
lamps will flash to alert you that the inner
gate has been disabled. The inner and outer
tailgate can still be operated like a manual
tailgate, but the inner gate will not be able