2021 GMC ACADIA Owner's Manual

C
M
Y
CM
MY
CY
CMY
K
21_GMC_Acadia_AcadiaDenali_COV_en_US_84581325B_2020NOV4.pdf 1 10/13/\
2020 1:43:29 PM

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Keys, Doors, and Windows . . . . . . . . . . . . . . . 6
Seats and Restraints . . . . . . . . . . . . . . . . . . . . . 35
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Instruments and Controls . . . . . . . . . . . . . . . 89
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Infotainment System . . . . . . . . . . . . . . . . . . . 138
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 192
Driving and Operating . . . . . . . . . . . . . . . . . . 199
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Service and Maintenance . . . . . . . . . . . . . . . 345
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . 358
Customer Information . . . . . . . . . . . . . . . . . . 363
Reporting Safety Defects . . . . . . . . . . . . . . . 371
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
Connected Services . . . . . . . . . . . . . . . . . . . . . 380
Index . . . . . . . . . . . . . . . . . . . . . . . . . . 383
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, ACADIA, 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 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.
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
Litho in U.S.A.
Part No. 84581325 B Second Printing©2020 General Motors LLC. All Rights Reserved.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
2 Introduction
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.
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

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Introduction 3
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
d:Traction Control/StabiliTrak/Electronic
Stability Control (ESC)
a: Under Pressure
V: Vehicle Ahead Indicator

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
4 Introduction
Instrument Panel Overview

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Introduction 5
1.Air Vents 0197.
2. Exterior Lamp Controls 0131.
Turn Signal Lever. See Turn and
Lane-Change Signals 0134.
3. Instrument Cluster (Base and Midlevel)
097 or
Instrument Cluster (Uplevel) 0100.
4. Windshield Wiper/Washer 091.
Rear Window Wiper/Washer 092.
5. Light Sensor. See Automatic Headlamp
System 0133.
6. Infotainment. See Overview0139.
7. Dual Automatic Climate Control System
0192.
8. USB Port 0147 (If Equipped).
9. Wireless Charging 094 (If Equipped).
10. Heated and Ventilated Front Seats 041
(If Equipped).
11.
|Hazard Warning Flashers 0134.
gTraction Control/Electronic Stability
Control 0226.
XPark Assist Switch. See Assistance
Systems for Parking or Backing 0241 (If
Equipped). 12.
Driver Mode Control 0228.
13.
ALane Keep Assist (LKA) 0252 (If
Equipped).
5Hill Descent Control (HDC) 0228 (If
Equipped).
14.
hAuto Stop Disable Button. See Stop/
Start System 0215 (If Equipped).
15. Power Outlets 093.
16. Shift Switches. See Automatic
Transmission 0220.
17. ENGINE START/STOP Button. See Starting
the Engine 0214.
18. Steering Wheel Controls 090 (If
Equipped).
Driver Information Center (DIC) Buttons.
See Driver Information Center (DIC) (Base)
0 115 or
Driver Information Center (DIC) (Midlevel
and Uplevel) 0117.
19. Horn 091.
20. Steering Wheel Adjustment 090. 21.
Cruise Control 0230.
Adaptive Cruise Control (Advanced) 0232
(If Equipped).
Forward Collision Alert (FCA) System
0 245 (If Equipped).
Heated Steering Wheel 090 (If
Equipped).
22. Hood Release. See Hood0270.
23. Instrument Panel Illumination Control
0135 (Out of View).
Head-Up Display (HUD) 0119 (If
Equipped).
24. Data Link Connector (DLC) (Out of View). SeeMalfunction Indicator Lamp (Check
Engine Light) 0107.
25. Electric Parking Brake 0224.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
6 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Keyless Entry (RKE) System . . . . . 7
Remote Keyless Entry (RKE) SystemOperation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 13
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 17
Automatic Door Locks . . . . . . . . . . . . . . . . . . . 17
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 17
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 25
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 25
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Immobilizer Operation . . . . . . . . . . . . . . . . . . 26
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 26
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 27
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 28
Automatic Dimming Mirror . . . . . . . . . . . . . 28
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . 28
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 28
Manual Rearview Mirror . . . . . . . . . . . . . . . . 28
Automatic Dimming Rearview Mirror . . . 28
Rear Camera Mirror . . . . . . . . . . . . . . . . . . . . 28
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 31
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
Remote Keyless Entry (RKE) transmitter is
dangerous and children or others could
be seriously injured or killed. They could
operate the power windows or other
controls or make the vehicle move. The
windows will function with the RKE
transmitter in the vehicle, and children or
others could be caught in the path of a
closing window. Do not leave children in
a vehicle with an RKE transmitter.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Keys, Doors, and Windows 7
The key, inside the Remote Keyless Entry
(RKE) transmitter, can be used for all locks.
To remove the key, press the button near
the bottom of the transmitter, and pull the
key out. Never pull the key out without
pressing the button.
If it becomes difficult to turn the key,
inspect the key blade for debris. Periodically,
clean with a brush or a pick.
See your dealer if a new key is needed.
Contact Roadside Assistance if locked out of
the vehicle. SeeRoadside Assistance Program
0 366.
With an active OnStar or connected service
plan, an OnStar Advisor may remotely
unlock the vehicle. See OnStar Overview
0 375.
Remote Keyless Entry (RKE)
System
See Radio Frequency Statement 0371.
If there is a decrease in the Remote Keyless
Entry (RKE) operating range:
.Check the distance. The transmitter may
be too far from the vehicle.
.Check the location. Other vehicles or
objects may be blocking the signal.
.Check the transmitter's battery. See
“Battery Replacement” later in this
section.
.If the transmitter is still not working
correctly, see your dealer or a qualified
technician for service.
Remote Keyless Entry (RKE)
System Operation
The Keyless Access system allows for vehicle
entry when the Remote Keyless Entry (RKE)
transmitter is within 1 m (3 ft). See “Keyless
Access Operation” following.
The RKE transmitter functions may work up
to 60 m (197 ft) away from the vehicle.
Other conditions can impact the
performance of the transmitter. See Remote
Keyless Entry (RKE) System 07.