GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Keys, Doors, and Windows 45
Slide Switch
Express-Open/Express-Close :To
express-open the sunroof, fully press and
release
I(1). Press and releaseI(1) again
to stop the movement. To express-close the
sunroof, fully press and release
K(1).
Press and release
K(1) again to stop the
movement.
Open/Close (Manual Mode) : To open the
sunroof, press and hold
I(1). ReleaseI(1)
to stop the movement. Press and hold
K(1) to close the sunroof. ReleaseK(1) to stop the movement.
Tilt Switch
Vent : From the closed position, press
J(2)
to vent the sunroof. Press
K(2) to close
the vent.
When the sunroof is opened, an air deflector
will automatically raise. The air deflector will
retract when the sunroof is closed.
The sunroof also has a sunshade, which can
be pulled forward to block sun rays. The
sunshade must be opened and closed
manually.
Automatic Reversal System
The sunroof has an automatic reversal
system that is only active when the sunroof
is operated in express-close mode.
If an object is in the path while
express-closing, the reversal system will
detect an object, stop, and open the sunroof
slightly.
If frost or other conditions prevent closing,
override the feature by closing the sunroof
in manual mode. To stop movement, release
K(1).
Dirt and debris may collect on the sunroof
seal or in the track. This could cause an
issue with sunroof operation or noise. It could also plug the water drainage
system. Periodically open the sunroof and
remove any obstacles or loose debris. Wipe
the sunroof seal and roof sealing area using
a clean cloth, mild soap, and water. Do not
remove grease from the sunroof tracks.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
52 Seats and Restraints
Overview
If equipped, the memory seat feature allows
drivers to save their unique driving positions
and a shared exit position. See“Saving
Seating Positions” later in this section. The
saved positions can be recalled manually by
all drivers, see “Manually Recalling Seating
Positions” later in this section, and drivers
with remote key 1 and 2 can also recall
them automatically. See “Auto Seat Entry
Memory Recall” or“Auto Seat Exit Memory
Recall” later in this section. To enable
automatic recalls, turn on Seat Entry
Memory and/or Seat Exit Memory. See
“Enabling Automatic Recalls” later in this
section. The memory recalls may be
canceled at any time during the recall. See
“Cancel Memory Seating Recalls” later in this
section.
Identifying Driver Number
The vehicle identifies the current driver by
their remote key number 1–8. The current
remote key number may be identified by
Driver Information Center (DIC) welcome
message, “You are driver x for memory recalls.”
This message is displayed the first
few times the vehicle is turned on when a
different remote key is used. For Seat Entry
Memory to work properly, save positions to
the 1 or 2 memory button matching the
driver number of this welcome message. To
aid in identifying remote key IDs, it is
recommended to only carry one remote key
when entering the vehicle. Perform the
following if the welcome message is not
displayed:
1. Move all keys and remote keys away from the vehicle.
2. Start the vehicle with another remote key. A DIC welcome message should
display indicating the driver number of
the other remote key. Turn the vehicle
off and remove the other key or remote
key from the vehicle.
3. Start the vehicle with the initial key or remote key. The DIC welcome message
should display the driver number of the
initial remote key. Saving Seating Positions
Read these instructions completely before
saving memory positions.
To save preferred driving positions to
1 and 2:
1. Turn the vehicle on or to accessory mode. A DIC welcome message may
indicate the driver number of the current
remote key. See “Identifying Driver
Number” previously in this section.
2. Adjust all available memory features to the desired driving position.
3. Press and release SET; a beep will sound.
4. Immediately upon releasing SET, press and hold memory button 1 or 2 matching
the current remote key number until two
beeps sound. If too much time passes
between releasing SET and pressing 1 or
2, the two beeps will not sound
indicating memory position were not
saved. Repeat Steps 3 and 4 to try again.
5. Repeat Steps 1–4 for the other remote key 1 or 2 using the other 1 or 2 memory
button.
It is recommended to save the preferred
driving positions to both 1 and 2 if you are
the only driver.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Seats and Restraints 53
To save the common exit seating position to
Bthat is used by all drivers for Manually
Recalling Seating Positions and Auto Seat
Exit Memory Recall features, repeat
Steps 1–4 using
B, the exit button.
Manually Recalling Seating Positions
Press and hold 1, 2, or
Bbutton until the
recall is complete, to recall the positions
previously saved to that button.
Manual Memory recall movement for 1, 2 or
Bbuttons may be initiated and will
complete to the saved memory position if
the vehicle is in or out of P (Park).
Enabling Automatic Recalls
.Seat Entry Memory moves the driver
seat to the selected 1 or 2 position when
the vehicle is started. Select Settings >
Vehicle > Seating Position > Seat Entry
Memory > ON or OFF. See “Auto Seat
Entry Memory Recall” later in this section.
.Seat Exit Memory moves the driver seat
to the preferred exit position of the
B
button when the vehicle is turned off and
the door is opened. Select Settings >
Vehicle > Seating Position > Seat Exit Memory > Select ON or OFF. See
“Auto
Seat Exit Memory Recall” later in this
section.
Auto Seat Entry Memory Recall
Seat Entry Memory will automatically begin
movement to the seating positions of the 1
or 2 button corresponding to remote key
number 1 or 2 detected by the vehicle when:
.The vehicle is turned ON.
.Seating positions have been previously
saved to the same 1 or 2 button. See
“Saving Seating Positions” previously in
this section.
.Seat Entry Memory is enabled. See
“Enabling Automatic Recalls” previously in
this section.
.The vehicle is in P (Park).
Seat Entry Memory Recall will continue if
the vehicle is shifted out of P (Park) prior to
reaching the saved memory position.
If the saved memory seat position does not
automatically recall, verify the recall is
enabled. See “Enabling Automatic Recalls”
previously in this section.
If the memory seat recalls to the wrong
position, remote key number 1 or 2 may not
match the memory button number positions they were saved to. Try the other remote
key or try saving the positions to the other
1 or 2 memory button. See
“Saving Seating
Positions” previously in this section.
Automatic Seat Entry Memory recalls are
only available for remote key numbers 1 and
2. Remote keys 3–8 will not provide Seat
Entry Memory recalls.
Auto Seat Exit Memory Recall
Seat Exit Memory will begin movement to
the seating position of the
B
button when:
.The vehicle is turned off and the driver
door is open or opened within a
short time.
.A seating position has been previously
been saved to the
Bmemory button.
See “Saving Seating Positions” previously
in this section.
.Seat Exit Memory is enabled. See
“Enabling Automatic Recalls” previously in
this section.
.The vehicle is in P (Park).
Seat Exit Memory is not linked to the
remote key. The seating position saved to
Bis used for all drivers.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Seats and Restraints 63
met. Seat belt pretensioners can also help
tighten the seat belts in a side crash or
rollover event.
Pretensioners work only once. If the
pretensioners activate in a crash, the
pretensioners and probably other parts of
the vehicle seat belt system will need to be
replaced. SeeReplacing Seat Belt System
Parts after a Crash 064.
Do not sit on the outboard seat belt while
entering or exiting the vehicle or at any
time while sitting in the seat. Sitting on the
seat belt can damage the webbing and
hardware.
Rear Seat Belt Comfort Guides
Rear seat belt comfort guides may provide
added seat belt comfort for older children
who have outgrown booster seats and for
some adults. When installed on a shoulder
belt, the comfort guide positions the
shoulder belt away from the neck and head.
Comfort guides are available through your
dealer for the rear outboard seating
positions. Instructions are included with the
comfort guides.
Seat Belt Use During Pregnancy
Seat belts work for everyone, including
pregnant women. Like all occupants, they
are more likely to be seriously injured if
they do not wear seat belts.
A pregnant woman should wear a
lap-shoulder belt, and the lap portion should
be worn as low as possible, below the
rounding, throughout the pregnancy.
The best way to protect the fetus is to
protect the mother. When a seat belt is
worn properly, it is more likely that the
fetus will not be hurt in a crash. For
pregnant women, as for anyone, the key to
making seat belts effective is wearing them
properly.
Seat Belt Extender
If the vehicle seat belt will fasten around
you, you should use it.
But if a seat belt is not long enough, your
dealer will order you an extender. Only a
GM dealer issued extender should be used.
When you go in to order it, take the
heaviest coat you will wear, so the extender
will be long enough for you. To help avoid
personal injury, do not let someone else use
it, and use it only for the seat it is made to
fit. The extender has been designed for
adults. Never use it for securing child
restraints. For more information on the
proper use and fit of seat belt extenders see
the instruction sheet that comes with the
extender.
Safety System Check
Periodically check the seat belt reminder,
seat belts, buckles, latch plates, retractors,
shoulder belt height adjusters (if equipped),
and seat belt anchorages to make sure they
are all in working order. Look for any other
loose or damaged seat belt system parts
that might keep a seat belt system from
performing properly. See your dealer to
have it repaired. Torn, frayed, or twisted
seat belts may not protect you in a crash.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Storage 99
Storage
Storage Compartments
Storage Compartments . . . . . . . . . . . . . . . . . 99
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Underseat Storage . . . . . . . . . . . . . . . . . . . . 100
Rear Storage . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Center Console Storage . . . . . . . . . . . . . . . . 101
Floor Console Storage . . . . . . . . . . . . . . . . . . 101
Additional Storage Features
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . 102
Storage Compartments{
Warning
Do not store heavy or sharp objects in
storage compartments. In a crash, these
objects may cause the cover to open and
could result in injury.
Glove Box
To access the upper glove box, pull up on
the handle. To access the lower glove box, pull up on
the handle. Use the mechanical key in the
remote key to lock or unlock. See
Keys014.
To access the upper glove box, press the
button to the left.
To access the lower glove box, pull the
handle from the side. To close, push the
glove box up until it latches. Use the
mechanical key in the remote key to lock or
unlock.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Storage 101
Center Console Storage
Bench Seat
Pull the strap on the side of the center
seatback to access the storage area and
cupholders. Do not use the center seatback
as a seating position when the seatback is
folded down.
To raise the seatback, push the seatback
rearward until it locks in the upright
position. Push and pull on the seatback to
make sure it is locked.
Bench Seat
If equipped with storage, press the latch and
lift to open.
Bucket Seat Press the latch and lift to open.
Floor Console Storage
If equipped with front center seat storage,
unlock with the mechanical key in the
remote key, press the latch, and lift to open.
See
Keys 014.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/15/22
Instruments and Controls 109
An indicator light on the outlet illuminates
when power is provided to the outlet and
no system fault is detected. The outlets will
not operate when the ignition is off, the
DC/AC switch is not pressed, or the plug is
not fully seated into the outlet.
If equipment is connected using more than
400 watts or a system fault is detected, a
protection circuit shuts off the power supply
and the indicator light turns off.
Do not use a power outlet with a missing or
damaged cover.
The power outlet is not designed for the
following, and may not work properly if
they are plugged in:
.Equipment with high initial peak wattage,
such as compressor-driven refrigerators
and electric power tools
.Other equipment requiring an extremely
stable power supply, such as
microcomputer-controlled electric blankets
and touch sensor lamps
.Medical equipment
Wireless Charging
If equipped and enabled, the vehicle has
wireless charging on the center console in
front of the cupholders. The system
operates at 145 kHz and wirelessly charges
one Qi compatible smartphone. The power
output of the system is capable of charging
at a rate up to 3 amp (15 W), as requested
by the compatible smartphone. SeeRadio
Frequency Statement 0413.
{Warning
Wireless charging may affect the
operation of an implanted pacemaker or
other medical devices. If you have one, it
is recommended to consult with your
doctor before using the wireless charging
system.
The vehicle must be on, in ACC/ACCESSORY,
or Retained Accessory Power (RAP) must be
active. The wireless charging feature may
not correctly indicate charging when the
vehicle is in RAP, during a Bluetooth phone
call, or when phone projection (e.g. Apple
CarPlay / Android Auto) is active. See
Retained Accessory Power (RAP) 0220. The operating temperature is
−40 °C (−40 °F)
to 85 °C (185 °F) for the charging system and
0 °C (32 °F) to 35 °C (95 °F) for the phone.
A charging stopped alert may be displayed
on the infotainment screen, if the wireless
charger or smartphone are outside of
normal operating temperature. Charging will
automatically resume when a normal
operating temperature is reached.
{Warning
Remove all objects from the charger
before charging your compatible
smartphone. Objects, such as coins, keys,
rings, paper clips, or cards, between the
smartphone and charger may become
very hot.
On the rare occasion that the charging
system does not detect an object, and
the object gets wedged between the
smartphone and charger, remove the
smartphone and allow the object to cool
before removing it from the charger, to
prevent burns.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
150 Lighting
Become familiar with and follow all state
and local laws that apply to cargo lamp
operation.
Interior Lighting
Instrument Panel Illumination
Control
Work Truck and Custom
Base Level Shown, Uplevel Similar
This feature adjusts the brightness of all
illuminated controls. The instrument panel
illumination control is next to the exterior
lamp control.
D: PressD− to dim or +Dto brighten
the lights.
This feature is functional at night, or when
the headlamps or parking lamps are on.
Dome Lamps
The dome lamp controls are in the overhead
console.
The dome lamps come on when any door is
opened,
Kon the remote key is pressed,
or when the vehicle is turned off.
To operate, press the following buttons:
jOFF : Press to turn off the dome
lamps. An indicator light on the button will
turn on when the dome lamp override is
activated. Press
jOFF again to
deactivate this feature and the indicator
light will turn off.