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
Litho in U.S.A.
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.
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.
A French language manual can be obtained from your dealer, at www.helminc.com, or from:
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
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.
Warning messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them.
Part No. 23400205 C Third Printing © 2019 General Motors LLC. All Rights Reserved.
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.”
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
> : Seat Belt Reminders I : Side Blind Zone Alert h : Stop/Start
7 : Tire Pressure Monitor
d : Traction Control/StabiliTrak/ Electronic Stability Control (ESC)
a : Under Pressure
V : Vehicle Ahead Indicator
Instrument Panel 6
Initial Drive Information 8
Stop/Start System 8
Remote Keyless Entry (RKE) System 9
Remote Vehicle Start 9
Door Locks 10
Windows 10
Seat Adjustment 11
Memory Features 13
Heated and Ventilated Seats 13
Head Restraint Adjustment 14
Seat Belts 14
Passenger Sensing System 14
Mirror Adjustment 15
Steering Wheel Adjustment 16
Interior Lighting 17
Exterior Lighting 18
Windshield Wiper/Washer 19
Climate Controls 20
Transmission 21
Four-Wheel Drive 22
Infotainment System 23
Steering Wheel Controls 23
Cruise Control 23
Driver Information
Center (DIC) 23
Forward Collision Alert (FCA) System 24
Forward Automatic
Braking (FAB) 24
Front Pedestrian Braking (FPB) System 24
Lane Keep Assist (LKA) 25
Lane Change Alert (LCA) 25
Surround Vision 25
Rear Vision Camera (RVC) 25
Rear Cross Traffic Alert (RCTA) System 25
Park Assist 25
Power Outlets 26
Universal Remote System 26
Sunroof 26
Traction Control/Electronic
Stability Control 27
Tire Pressure Monitor 28
Fuel (Gasoline - Except
L87 6.2L Engine) 28
Fuel (Gasoline - L87 6.2L
Engine) 29
Fuel (Diesel) 29
E85 or FlexFuel 29
Engine Oil Life System 29
Driving for Better Fuel
Economy 30
Roadside Assistance
Program 30