GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Introduction 9
1.Head-Up Display (HUD) 0135 (If
Equipped).
2. Air Vents 0196.
3. Turn Signal Lever. See Turn and
Lane-Change Signals 0147.
Windshield Wiper/Washer 0106.
4. Instrument Cluster (Base Level) 0112 or
Instrument Cluster (Uplevel) 0113.
5. Shift Lever. See Automatic Transmission
0 223.
Range Selection Mode. See Manual Mode
0 226.
6. Infotainment System. See Overview
(Uplevel Radio) 0155 or
Overview (Base Radio) 0154.
7. Light Sensor. See Automatic Headlamp
System 0145.
Vehicle Alarm System. See Vehicle
Security 032.
8. Upper Glove Box. See Glove Box099.
9. Lower Glove Box. See Glove Box099.
10. Upper Glove Box Button. See Glove Box
0 99. 11. Power Release Tailgate (If Equipped). See
Tailgate 024.
Hazard Warning Flashers 0146.
Traction Control/Electronic Stability
Control 0236.
Hill Descent Control Switch (If Equipped).
See Hill Descent Control (HDC) 0237.
Power Assist Steps 031 (If Equipped).
Express Window Down Button (If
Equipped). See Power Windows 042.
Tow/Haul Mode 0227 (On Some
Models).
Exhaust Brake (If Equipped). See Duramax
Diesel Supplement.
Power Take-Off (PTO) (If Equipped). See
Duramax Diesel Supplement.
12. USB Port 0163.
13. Climate Control Systems 0191 (If
Equipped).
Dual Automatic Climate Control System
0 193 (If Equipped).
Heated and Ventilated Front Seats 054
(If Equipped).
Heated Steering Wheel 0105 (If
Equipped). 14. Front Center Console Storage.
15.
Cupholders 0100.
16. Trailer Brake Control Panel (If Equipped). See“Integrated Trailer Brake Control
System” underTowing Equipment 0284.
17. ENGINE START/STOP. See Ignition
Positions 0216.
18. Steering Wheel Controls 0156.
Driver Information Center (DIC) Controls.
See Driver Information Center (DIC) (Base
Level) 0131 or
Driver Information Center (DIC) (Uplevel)
0 133.
19. Horn 0106.
20. Steering Wheel Adjustment 0105 (Out
of View).
21. Hood Release. See Hood0312.
22. Cruise Control 0239.
Adaptive Cruise Control (Camera) 0241
(If Equipped).
Forward Collision Alert (FCA) System
0 263 (If Equipped).
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
12 Introduction
1.Air Vents 0196.
2. Head-Up Display (HUD) 0135 (If
Equipped).
3. Turn Signal Lever. See Turn and
Lane-Change Signals 0147.
Windshield Wiper/Washer 0106.
4. Instrument Cluster (Base Level) 0112 or
Instrument Cluster (Uplevel) 0113.
5. Shift Lever. See Automatic Transmission
0 223.
Range Selection Mode. See Manual Mode
0 226.
6. Infotainment System. See Overview
(Uplevel Radio) 0155 or
Overview (Base Radio) 0154.
7. Light Sensor. See Automatic Headlamp
System 0145.
Vehicle Alarm System. See Vehicle
Security 032.
8. Upper Glove Box Button. See Glove Box
0 99.
9. Upper Glove Box. See Glove Box099.
10. Lower Glove Box. See Glove Box099. 11.
Climate Control Systems 0191 (If
Equipped).
Dual Automatic Climate Control System
0 193 (If Equipped).
Heated and Ventilated Front Seats 054
(If Equipped).
Heated Steering Wheel 0105 (If
Equipped).
12. Power Release Tailgate (If Equipped). See Tailgate 024.
Hazard Warning Flashers 0146.
Traction Control/Electronic Stability
Control 0236.
Hill Descent Control Switch (If Equipped).
See Hill Descent Control (HDC) 0237.
Power Assist Steps 031 (If Equipped).
Express Window Down Button (If
Equipped). See Power Windows 042.
Tow/Haul Mode 0227 (On Some
Models).
Exhaust Brake (If Equipped). See Duramax
Diesel Supplement.
Power Take-Off (PTO) (If Equipped). See
Duramax Diesel Supplement. 13. Front Center Console Storage.
14.
USB Port 0163.
15. Cupholders 0100.
16. Trailer Brake Control Panel (If Equipped). See“Integrated Trailer Brake Control
System” underTowing Equipment 0284.
17. ENGINE START/STOP. See Ignition
Positions 0216.
18. Steering Wheel Controls 0156.
Driver Information Center (DIC) Controls.
See Driver Information Center (DIC) (Base
Level) 0131 or
Driver Information Center (DIC) (Uplevel)
0 133.
19. Horn 0106.
20. Hood Release. See Hood0312.
21. Steering Wheel Adjustment 0105 (Out
of View).
22. Cruise Control 0239.
Adaptive Cruise Control (Camera) 0241
(If Equipped).
Forward Collision Alert (FCA) System
0 263 (If Equipped).
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
34 Keys, Doors, and Windows
The security light, in the instrument cluster,
comes on if there is a problem with arming
or disarming the theft-deterrent system.
The system has one or more remote keys
matched to an immobilizer control unit in
your vehicle. Only a correctly matched
remote key will start the vehicle. If the
remote key is ever damaged, you may not
be able to start your vehicle.
When trying to start the vehicle, the
security light may come on briefly when the
ignition is turned on. If the engine does not
start and the security light stays on, there is
a problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition modes
(accessory mode, on, off), and the remote
key appears to be undamaged, try another
remote key. Or, you may try placing the
remote key in the remote key pocket
located in the center console. SeeRemote
Key Operation 015.
If the ignition mode will not change with
the other remote key or with the remote
key in the remote key pocket, your vehicle
needs service. If the ignition does change
modes, the first remote key may be faulty. See your dealer who can service the
theft-deterrent system and have a new
remote key programmed to the vehicle.
It is possible for the immobilizer system to
learn new or replacement remote keys. Up
to eight remote keys can be programmed
for the vehicle. To program additional
remote keys, see "Programming Remote
Keys to the Vehicle" under
Remote Key
Operation 015.
Do not leave the remote key or device that
disarms or deactivates the vehicle theft
system in the vehicle.
Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things, like
other vehicles, look farther away than
they really are. If you cut too sharply
into the right lane, you could hit a
vehicle on the right. Check the inside
mirror or glance over your shoulder
before changing lanes. Standard Mirrors
If equipped, the passenger side mirror is
convex shaped. A convex mirror surface is
curved so more can be seen from the
driver seat.
Trailer-Tow Mirrors
The upper portion of both the driver and
passenger mirrors is flat.
The lower portion of both the driver and
passenger mirrors is convex. A convex mirror
surface is curved so more can be seen from
the driver seat. The lower portion is
adjusted manually.
Manual Mirrors
If equipped, adjust manual mirrors by
moving the mirror up and down or left to
right to see a little of the side of the vehicle
and to have a clear view behind the vehicle.
Using hood-mounted air deflectors and
add-on convex mirror attachments could
decrease mirror performance.
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
56 Seats and Restraints
The feature can be turned on or off. Select
Settings > Vehicle > Rear Seat Reminder >
ON or OFF.
Folding the Rear Seat Cushion
Either side of the rear seat cushion can be
folded up for added cargo space.
Caution
Folding a rear seat with the seat belts
still fastened may cause damage to the
seat or the seat belts. Always unbuckle
the seat belts and return them to their
normal stowed position before folding a
rear seat.
Make sure that nothing is on the seat
cushion.
To fold the seat, slowly pull the seat
cushion up.
To return the seat to the normal seating
position, slowly pull the seat cushion down.
{Warning
A seat belt that is improperly routed, not
properly attached, or twisted will not
provide the protection needed in a crash.
The person wearing the belt could be
seriously injured. After restoring the seat
to the normal seating position, always
check to be sure that the seat belts are
properly routed and attached, and are
not twisted.
Heated Rear Seats
{Warning
If you cannot feel temperature change or
pain to the skin, the seat heater may
cause burns. See the Warning under
Heated and Ventilated Front Seats 054.
If available, the buttons are on the rear of
the center console. To operate, the engine
must be running.
Press
MorLto heat the left or right
outboard seat cushion. An indicator on the
climate control display appears when this
feature is on.
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
100 Storage
Cupholders
Front
There may be cupholders on the center
front seat console armrest.
Rear
If equipped, pull the rear seat armrest down
to access the cupholders.
Underseat Storage
There may be storage under the rear
passenger seat. Lift up on the seat bench to
access. Push the seat bench toward the floor
to close.
Rear Storage
There may be storage in the rear seat. Pull
the tab to access.
Push the storage door to close. The storage
door must be closed before installing child
restraints.
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 107
on the windshield and controls the
frequency of the windshield wiper based on
the current sensitivity setting.
Keep this area of the windshield clear of
debris to allow for best system performance.
To turn the Rain Sense feature on or off, see
“Rain Sense Wipers”under Settings >
Vehicle > Comfort and Convenience > Rain
Sense > Enable/Disable.
If Rain Sense is enabled in Settings, turning
the wiper lever to INT will activate Rain
Sense.
Front Surround Vision Camera Wash
If equipped, pressLon the windshield
wiper lever to spray washer fluid on the
front surround vision camera lens. See
Surround Vision System 0254.
Compass
The vehicle may have a compass display on
the Driver Information Center (DIC). The
compass receives its heading and other
information from the Global Positioning
System (GPS) antenna, Electronic Stability
Control (ESC), and vehicle speed information.
The compass system is designed to operate
for a certain number of miles or degrees of
turn before needing a signal from the GPS
satellites. When the compass display shows
CAL, drive the vehicle for a short distance in
an open area where it can receive a GPS
signal. The compass system will
automatically determine when a GPS signal
is restored and provide a heading again.
Clock
Set the time and date using the
infotainment system. See "Time/Date" under
Settings (Uplevel Radio) 0183 or
Settings (Base Radio) 0181.
Power Outlets
Accessory power outlets can be used to plug
in electrical equipment, such as a cell phone
or MP3 player.
Rear of Front Center Console
The vehicle has one accessory power outlet
under the climate control system and one
accessory power outlet on the rear of the
center console, if equipped, or on the rear of
the bench seat, if equipped.
Lift the cover to access and replace when
not in use.
{Warning
Power is always supplied to the outlets.
Do not leave electrical equipment
plugged in when the vehicle is not in use
because the vehicle could catch fire and
cause injury or death.