GMC Sierra Denali 1500 2023 User manual

2023 Sierra/Sierra Denali 1500
Scan to Access
United States
United States and Canada
Connected Services
1-888-4-ONSTAR
Customer Assistance
1-800-263-3777
Canada
• Owner’s Manuals
• Warranty Information
• Connected Services
• My GMC Rewards
• myGMC Mobile App
• How-To Videos
• Vehicle Diagnostics
• Scheduled Maintenance
• Vehicle Features
• Many Additional Resources
United States
Customer Assistance
1-800-462-8782
Roadside Assistance
1-888-881-3302
84883874 A
Sierra/Sierra Denali 1500
Owner’s Manual
Roadside Assistance
1-800-268-6800
Canada
C
M
Y
CM
MY
CY
CMY
K
ai165573357347_23_GMC_Sierra_Denali_COV_en_US_84883874 A_2022JUN30.pdf 1 6/20/2022 9:59:34 AM

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
Contents
Introduction .............................. 1
Keys, Doors, and Windows . . . . . . . . . . . . . . 14
Seats and Restraints . . . . . . . . . . . . . . . . . . . . . 45
Storage .................................. 97
Instruments and Controls . . . . . . . . . . . . . . . 101
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Infotainment System . . . . . . . . . . . . . . . . . . . 151
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 188
Driving and Operating . . . . . . . . . . . . . . . . . . 196
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Service and Maintenance . . . . . . . . . . . . . . . 417
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . 426
Customer Information . . . . . . . . . . . . . . . . . . 431
Reporting Safety Defects . . . . . . . . . . . . . . . 439
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
Connected Services . . . . . . . . . . . . . . . . . . . . . 447
Index. . . . . . . . . . . . . . . . . . . . . . . . . . 450
Introduction
California Proposition 65 Warning
Litho in U.S.A.
Part No. 84883874 A First Printing ©2022 General Motors LLC. All Rights Reserved.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
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 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
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
h:Stop/Start
7:Tire Pressure Monitor

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
4 Introduction
d:Traction Control/StabiliTrak/Electronic
Stability Control (ESC)
a:Under Pressure
k:Vehicle Ahead Indicator

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
Introduction 5
Instrument Panel Overview
Work Truck

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
6 Introduction
1. Tow/Haul Mode (On Some Models). See
Driver Mode Control 0242.
Automatic Transfer Case Control (If
Equipped). See Four-Wheel Drive 0233.
Driver Mode Control 0242 (If Equipped).
2. Air Vents 0193.
3. Head-Up Display (HUD) 0133 (If
Equipped).
4. Turn Signal Lever. See Turn and
Lane-Change Signals 0145.
Windshield Wiper/Washer 0103.
5. Instrument Cluster (Base Level) 0110 or
Instrument Cluster (Uplevel) 0111.
6. Shift Lever. See Automatic Transmission
(Electronic Shifter) 0226 or
Automatic Transmission (Mechanical
Shifter) 0223.
Range Selection Mode. See Manual Mode
(Mechanical Shifter) 0230 or
Manual Mode (Electronic Shifter) 0232.
7. Infotainment System. See Overview
(Uplevel Radio) 0153 or
Overview (Base Radio) 0152.
8. Light Sensor. See Automatic Headlamp
System 0143.
Vehicle Alarm System. See Vehicle
Security 032.
9. Infotainment Controls. See Overview
(Uplevel Radio) 0153 or
Overview (Base Radio) 0152.
10. Climate Control Systems 0188 (If
Equipped).
Dual Automatic Climate Control System
0190 (If Equipped).
11. Heated and Ventilated Front Seats 053
(If Equipped).
12. Lane Keep Assist (LKA) 0295 (If
Equipped).
Park Assist Switch (If Equipped). See
Assistance Systems for Parking or Backing
0276.
Auto Stop Disable Switch (If Equipped).
See Stop/Start System 0216.
Power Release Tailgate (If Equipped). See
Tailgate 024.
Hazard Warning Flashers 0144.
Traction Control/Electronic Stability
Control 0240.
Hill Descent Control Switch (If Equipped).
See Hill Descent Control (HDC) 0241.
Power Assist Steps 031 (If Equipped).
Express Window Down Button (If
Equipped). See Power Windows 041.
Tow/Haul Mode 0232 (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 Outlets 0104.
14. Power Outlet (Direct Current) Power
Outlets 0104.
15. USB Port 0161.
16. Wireless Charging 0107 (If Equipped).
17. Trailer Brake Control Panel (If Equipped).
See “Integrated Trailer Brake Control
System”under Towing Equipment 0309.
18. ENGINE START/STOP. See Ignition
Positions 0214.
19. Steering Wheel Controls 0154 (If
Equipped).
Driver Information Center (DIC) Controls.
See Driver Information Center (DIC) (Base
Level) 0130 or
Driver Information Center (DIC) (Uplevel)
0131.
20. Horn 0103.
21. Hood Release. See Hood 0337.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
Introduction 7
22. Steering Wheel Adjustment 0102 (Out
of View).
23. Cruise Control 0247.
Adaptive Cruise Control (Camera) 0249
(If Equipped).
Forward Collision Alert (FCA) System
0286 (If Equipped).
Heated Steering Wheel 0103 (If
Equipped).
24. Data Link Connector (DLC) (Out of View).
See Malfunction Indicator Lamp (Check
Engine Light) 0120.
25. Electric Parking Brake 0238.
26. Fog Lamps 0146 (If Equipped).
Instrument Panel Illumination Control
0148.
Exterior Cargo Lamps 0147.
Exterior Lamp Controls 0141.
Task Lighting 0146 (If Equipped).

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
8 Introduction
Uplevel Shown, Base Level Similar

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16515120) - 2023 - CRC - 6/16/22
Introduction 9
1. Head-Up Display (HUD) 0133 (If
Equipped).
2. Air Vents 0193.
3. Turn Signal Lever. See Turn and
Lane-Change Signals 0145.
Windshield Wiper/Washer 0103.
4. Range Selection Mode. See Manual Mode
(Mechanical Shifter) 0230 or
Manual Mode (Electronic Shifter) 0232.
5. Instrument Cluster (Base Level) 0110 or
Instrument Cluster (Uplevel) 0111.
6. Infotainment Controls. See Overview
(Uplevel Radio) 0153 or
Overview (Base Radio) 0152.
7. Infotainment System. See Overview
(Uplevel Radio) 0153 or
Overview (Base Radio) 0152.
8. Light Sensor. See Automatic Headlamp
System 0143.
Vehicle Alarm System. See Vehicle
Security 032.
9. Upper Glove Box. See Glove Box 097.
10. Lower Glove Box. See Glove Box 097.
11. Upper Glove Box Button. See Glove Box
097.
12. Lane Keep Assist (LKA) 0295.
Auto Stop Disable Switch (If Equipped).
See Stop/Start System 0216.
Power Release Tailgate (If Equipped). See
Tailgate 024.
Hazard Warning Flashers 0144.
Traction Control/Electronic Stability
Control 0240.
Hill Descent Control Switch (If Equipped).
See Hill Descent Control (HDC) 0241.
Power Assist Steps 031 (If Equipped).
Express Window Down Button (If
Equipped). See Power Windows 041.
Tow/Haul Mode 0232 (On Some
Models).
Exhaust Brake (If Equipped). See Duramax
Diesel Supplement.
Power Take-Off (PTO) (If Equipped). See
Duramax Diesel Supplement.
13. USB Port 0161.
14. Climate Control Systems 0188 (If
Equipped).
Dual Automatic Climate Control System
0190 (If Equipped).
Heated and Ventilated Front Seats 053
(If Equipped).
Heated Steering Wheel 0103 (If
Equipped).
15. Front Center Console Storage.
16. Cupholders 097.
17. Shift Lever. See Automatic Transmission
(Electronic Shifter) 0226 or
Automatic Transmission (Mechanical
Shifter) 0223.
18. Trailer Brake Control Panel (If Equipped).
See “Integrated Trailer Brake Control
System”under Towing Equipment 0309.
19. ENGINE START/STOP. See Ignition
Positions 0214.
20. Steering Wheel Controls 0154.
Driver Information Center (DIC) Controls.
See Driver Information Center (DIC) (Base
Level) 0130 or
Driver Information Center (DIC) (Uplevel)
0131.
21. Horn 0103.
22. Steering Wheel Adjustment 0102 (Out
of View).
23. Hood Release. See Hood 0337.
24. Cruise Control 0247.
Adaptive Cruise Control (Camera) 0249
(If Equipped).
Super Cruise 0260 (If Equipped).