GMC SIERRA DENALI 2024 Owners Manual

2024 Sierra/Sierra Denali 2500 HD/3500 HD
Sierra/Sierra Denali
2500 HD/3500 HD
Owner’s Manual
United States
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Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-16908339) - 2024 - Insert - 1/24/23
This information is in addition to the
information under“Seat Belt Reminders”
found in the Instruments and Controls
Section of the owner's manual.
Second Row Passenger Seat Belt
Reminder Lights
The vehicle may have second row passenger
seat belt reminder lights.
Base Level Instrument Cluster
When the vehicle is started, these lights
come on solid to remind rear passengers to
fasten their seat belts. Then each light may
stay on solid or flash, and a chime may come on if the rear passenger remains
unbuckled, or becomes unbuckled, when the
vehicle is moving. A shaded or green light
indicates the seat belt is buckled.
If all rear seat positions are buckled, neither
the chime nor the lights will come on.
Litho in U.S.A.
Part No. 86557029©2023 General Motors LLC. All Rights Reserved.
Insert to the 2024 Chevrolet Silverado 2500 HD/3500 HD and the
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner's Manuals

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Keys, Doors, and Windows . . . . . . . . . . . . . . 14
Seats and Restraints . . . . . . . . . . . . . . . . . . . . 46
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Instruments and Controls . . . . . . . . . . . . . . 104
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Infotainment System . . . . . . . . . . . . . . . . . . . 153
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 191
Driving and Operating . . . . . . . . . . . . . . . . . . 198
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Service and Maintenance . . . . . . . . . . . . . . . 393
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . 401
Customer Information . . . . . . . . . . . . . . . . . . 405
Reporting Safety Defects . . . . . . . . . . . . . . . 414
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Connected Services . . . . . . . . . . . . . . . . . . . . . 422
Index . . . . . . . . . . . . . . . . . . . . . . . . . . 425
Introduction
California Proposition 65 Warning
Litho in U.S.A.
Part No. 84989061 A First Printing©2022 General Motors LLC. All Rights Reserved.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
2 Introduction
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, SIERRA, and DENALI are
trademarks and/or service marks of General
Motors LLC, its subsidiaries, affiliates,
or licensors.
For vehicles first sold in Canada, substitute
the name“General Motors of Canada
Company” for GMC Division wherever it
appears in this manual.
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 printing of this owner’s
manual, including changes in standard or
optional content. If the vehicle has the Duramax diesel
engine, see the Duramax diesel supplement
for additional and specific information on
this engine.
Refer to the purchase documentation
relating to your specific vehicle to confirm
the features.
Keep this manual in the vehicle for quick
reference.
Canadian Vehicle Owners
A French language manual can be obtained
from your dealer, at www.helminc.com,
or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide
en français auprès du concessionnaire ou à
l'adresse suivante:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
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.
{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.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Introduction 3
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 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
h:Risk of Electrical Fire
>:Seat Belt Reminders
I:Side Blind Zone Alert

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
4 Introduction
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak/Electronic
Stability Control (ESC)
a: Under Pressure
k: Vehicle Ahead Indicator

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Introduction 5
Instrument Panel Overview

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
6 Introduction
1. Tow/Haul Mode (On Some Models). SeeDriver Mode Control 0238.
Automatic Transfer Case Control (If
Equipped). See Four-Wheel Drive 0228.
Driver Mode Control 0238 (If Equipped).
2. Air Vents 0196.
3. Turn Signal Lever. See Turn and
Lane-Change Signals 0147.
Windshield Wiper/Washer 0106.
4. Head-Up Display (HUD) 0135 (If
Equipped).
5. Instrument Cluster (Base Level) 0112 or
Instrument Cluster (Uplevel) 0113.
6. Shift Lever. See Automatic Transmission
0 223.
Range Selection Mode. See Manual Mode
0 226.
7. Light Sensor. See Automatic Headlamp
System 0145.
8. Infotainment Controls. See Overview
(Uplevel Radio) 0155 or
Overview (Base Radio) 0154.
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).
12.
XPark Assist Switch (If Equipped). See
Assistance Systems for Parking or Backing
0 253.
5Power Release Tailgate (If
Equipped). See Tailgate024.
|Hazard Warning Flashers 0146.
gTraction Control/Electronic Stability
Control 0236.
-DC/AC Switch. See Power Outlets
0 107.
@Lane Departure Warning (LDW) 0270
(If Equipped).
5Hill Descent Control Switch (If
Equipped). See Hill Descent Control (HDC)
0 237.
jPower Assist Steps 031 (If
Equipped).
LExpress 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. Power Outlet (Alternating Current) (If Equipped). See Power Outlets0107.
14. Power Outlets 0107.
15. USB Port 0163.
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 (If
Equipped).
Driver Information Center (DIC) Controls.
See Driver Information Center (DIC) (Base
Level) 0131 or
Driver Information Center (DIC) (Uplevel)
0 133.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Introduction 7
19.Horn 0106.
20. Hood Release. See Hood0312.
21. Steering Wheel Adjustment 0105 (Out
of View).
22. Cruise Control 0239.
Forward Collision Alert (FCA) System
0 263 (If Equipped).
Heated Steering Wheel 0105 (If
Equipped).
23. Data Link Connector (DLC) (Out of View). SeeMalfunction Indicator Lamp (Check
Engine Light) 0122.
24. Electric Parking Brake 0234.
25. Fog Lamps 0148 (If Equipped).
Instrument Panel Illumination Control
0 150.
Exterior Cargo Lamps 0149.
Exterior Lamp Controls 0143.
Task Lighting 0148 (If Equipped).

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
8 Introduction
Base Level Shown, Uplevel Similar