2021 GMC ACADIA seats

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
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
8 Keys, Doors, and Windows
With Remote Start Shown, Without Similar
Q:Press to lock all doors. The turn signal
indicators may flash and/or the horn may
sound on the second press to indicate
locking. See Vehicle Personalization 0123.
If the driver door is open when
Qis pressed
and Open Door Anti Lockout is enabled, all
doors will lock and then the driver door will
immediately unlock. See Vehicle
Personalization 0123. If the passenger door
is open when
Qis pressed, all doors lock.
Pressing
Qmay also arm the theft-deterrent
system. See Vehicle Alarm System 025.
K:Press to unlock the driver door. Press
again within five seconds to unlock all
doors. The RKE transmitter can be
programmed to unlock all doors on the first
button press. See Vehicle Personalization
0 123. When remotely unlocking the vehicle
at night the fog lamps and back-up lamps
will come on for about 30 seconds to light
your approach to the vehicle. The turn
signal indicators may flash to indicate
unlocking. See Vehicle Personalization 0123.
Pressing
Kwill disarm the theft-deterrent
system. See Vehicle Alarm System 025.
If equipped, pressing and holding
Kwill
open the windows, if enabled. See Vehicle
Personalization 0123.
/:If equipped, press and releaseQand
then immediately press and hold
/for at
least four seconds to start the engine from
outside the vehicle using the RKE
transmitter. See Remote Vehicle Start 013.
7:Press and release one time to initiate
vehicle locator. The exterior lamps flash and
the horn chirps three times. Press and hold
7for three seconds to sound the panic alarm. The horn sounds and the turn signal
lamps flash for 30 seconds, or until
7is
pressed again or the vehicle is started.
b: Press twice quickly to open or close
the liftgate.
Press once to stop the liftgate from moving.
Keyless Access Operation
With the Keyless Access system, you can
lock and unlock the doors and access the
liftgate without removing the RKE
transmitter from your pocket, purse,
briefcase, etc. The RKE transmitter should be
within 1 m (3 ft) of the liftgate or door being
opened.
Keyless Access can be programmed to
unlock all doors on the first lock/unlock
press from the driver door. Keyless Access
can also be turned off. See Vehicle
Personalization 0123.
If equipped with memory seats, RKE
transmitters 1 and 2 are linked to seating
positions of memory 1 or 2. See Memory
Seats 039.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
14 Keys, Doors, and Windows
The climate control system will use the
previous settings during a remote start. The
rear defog may come on during a remote
start based on cold ambient conditions. The
rear fog indicator light does not come on
during a remote start.
If the vehicle has heated or ventilated seats,
they may come on during a remote start.
SeeHeated and Ventilated Front Seats 041.
If equipped with a remote start heated
steering wheel, the heated wheel will turn
on automatically in remote start along with
the heated seats when it is cold outside. See
Heated Steering Wheel 090.
Laws in some local communities may restrict
the use of remote starters. For example,
some laws may require a person using
remote start to have the vehicle in view.
Check local regulations for any
requirements.
Do not use remote start if the vehicle is low
on fuel as it may run out of fuel.
Other conditions can affect the performance
of the transmitter. See Remote Keyless Entry
(RKE) System 07. Starting the Engine Using Remote Start
1. Press and release
Qon the RKE
transmitter.
2. Immediately press and hold
/for at
least four seconds or until the turn
signal lamps flash. The turn signal lamps
flashing confirms the request to remote
start the vehicle has been received.
During the remote start the doors will be
locked and the parking lamps will remain
on as long as the engine is running.
The engine will shut off after 15 minutes
unless a time extension is done or the
vehicle is started.
3. With the RKE transmitter in the vehicle, press the brake pedal and start the
vehicle to drive.
Extending Engine Run Time
The engine run time can also be extended
by another 15 minutes, if during the first
15 minutes Steps 1 and 2 are repeated while
the engine is still running. An extension can
be requested 30 seconds after starting. This
provides a total of 30 minutes.
The remote start can only be extended once. When the remote start is extended, the
second 15-minute period is added on to the
first 15 minutes for a total of 30 minutes.
A maximum of two remote starts, or a
remote start with an extension, are allowed
between ignition cycles.
The vehicle must be started and then turned
off before the remote start procedure can be
used again.
Canceling a Remote Start
To cancel a remote start, do any of the
following:
.Press and hold/until the parking lamps
turn off.
.Turn on the hazard warning flashers.
.Turn the vehicle on and then off.
Conditions in Which Remote Start Will
Not Work
The remote start will not operate if any of
the following occur:
.A transmitter is in the vehicle.
.The ignition is on.
.The hood is not closed.
.The hazard warning flashers are on.
.There is an emission control system
malfunction.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Keys, Doors, and Windows 27
Warning (Continued)
into the right lane, you could hit a
vehicle on the right. Check the inside
mirror or glance over your shoulder
before changing lanes.
The passenger side mirror is convex shaped.
A convex mirror's surface is curved so more
can be seen from the driver seat.
Power Mirrors
To adjust a mirror: 1. Press
jor|to select the driver or
passenger side mirror. The indicator light
will illuminate. 2. Press the arrows on the control pad to
move the mirror in the desired direction.
3. Adjust each outside mirror so that a little of the vehicle and the area behind it can
be seen.
4. Press
jor|again to deselect the
mirror.
Memory Mirrors
The vehicle may have memory mirrors. See
Memory Seats 039.
Side Blind Zone Alert (SBZA)
The vehicle may have SBZA. See Side Blind
Zone Alert (SBZA) 0250.
Lane Change Alert (LCA)
The vehicle may have LCA. Lane Change
Alert (LCA) 0250.
Folding Mirrors
Manual Folding Mirrors
The mirrors can be folded inward toward
the vehicle to prevent damage when going
through an automatic car wash. Push the
mirror outward to return it to the original
position.
Power Folding Mirrors
If equipped, pressgto power fold the
mirrors. Press again to unfold.
Resetting the Power Folding Mirrors
Reset the power folding mirrors if the
mirrors:
.Are accidentally obstructed while folding.
.Are accidentally manually folded/
unfolded.
.Do not stay in the unfolded position.
.Vibrate at normal driving speeds.
Fold and unfold the mirrors one time using
the mirror controls to reset them to their
normal position. A noise may be heard

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
28 Keys, Doors, and Windows
during the resetting of the power folding
mirrors. This sound is normal after a manual
folding operation.
Remote Mirror Folding
If equipped, press and hold
Qon the RKE
transmitter for approximately one second to
automatically fold the exterior mirrors. Press
and hold
Kon the RKE transmitter for
approximately one second to unfold. See
Remote Keyless Entry (RKE) System
Operation 07.
This feature is turned on or off through
vehicle personalization. See Vehicle
Personalization 0123.
Heated Mirrors
K:Press to heat the mirrors.
See “Rear Window Defogger” underDual
Automatic Climate Control System 0192.
Automatic Dimming Mirror
If the vehicle has the automatic dimming
mirror, the driver outside mirror
automatically adjusts for the glare of
headlamps behind you.
Reverse Tilt Mirrors
If equipped with reverse tilt mirrors and
memory seats, the passenger and/or driver
mirror tilts to a preselected position when
the vehicle is in R (Reverse). This allows the
curb to be seen when parallel parking.
The mirror(s) may move from their tilted
position when:
.The vehicle is shifted out of R (Reverse),
or remains in R (Reverse) for about
30 seconds.
.The vehicle is turned off.
.The vehicle is driven in R (Reverse) above
a set speed.
To turn this feature on or off, see Vehicle
Personalization 0123.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear view
of the area behind the vehicle.
Do not spray glass cleaner directly on the
mirror. Use a soft towel dampened with
water.
Manual Rearview Mirror
If equipped, push the tab forward for
daytime use and pull it rearward for
nighttime use to avoid glare of the
headlamps from behind.
Automatic Dimming Rearview
Mirror
If equipped, automatic dimming reduces the
glare of headlamps from behind. The
dimming feature comes on when the vehicle
is started.
Rear Camera Mirror
If equipped, this automatic dimming mirror
provides a wide angle camera view of the
area behind the vehicle.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Seats and Restraints 35
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 35
Front Seats
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Seat Adjustment . . . . . . . . . . . . . . . . . 37
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . 38
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 38
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Heated and Ventilated Front Seats . . . . . 41
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . . 45
Third Row Seats . . . . . . . . . . . . . . . . . . . . . . . . 46
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
How to Wear Seat Belts Properly . . . . . . 48
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 50
Seat Belt Use During Pregnancy . . . . . . . . 52
Seat Belt Extender . . . . . . . . . . . . . . . . . . . . . . 53
Safety System Check . . . . . . . . . . . . . . . . . . . 53
Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Replacing Seat Belt System Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Airbag System
Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Where Are the Airbags? . . . . . . . . . . . . . . . . 55
When Should an Airbag Inflate? . . . . . . . . 57
What Makes an Airbag Inflate? . . . . . . . . . 58
How Does an Airbag Restrain? . . . . . . . . . 58
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Passenger Sensing System . . . . . . . . . . . . . 59
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Adding Equipment to the Airbag-Equipped Vehicle . . . . . . . . . . . . . . 63
Airbag System Check . . . . . . . . . . . . . . . . . . . 64
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Child Restraints
Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Infants and Young Children . . . . . . . . . . . . 66
Child Restraint Systems . . . . . . . . . . . . . . . . 68
Where to Put the Restraint . . . . . . . . . . . . 69
Lower Anchors and Tethers for Children(LATCH System) . . . . . . . . . . . . . . . . . . . . . . . 71
Replacing LATCH System Parts After a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Securing Child Restraints (With the Seat Belt in the Rear Seat) . . . . . . . . . . . . . . . . . 78
Securing Child Restraints (With the Seat Belt in the Front Seat) . . . . . . . . . . . . . . . 80
Head Restraints
Front Seats
{Warning
With head restraints that are not
installed and adjusted properly, there is a
greater chance that occupants will suffer
a neck/spinal injury in a crash. Do not
drive until the head restraints for all
occupants are installed and adjusted
properly.
The vehicle's front seats have adjustable
head restraints in the outboard seating
positions.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
36 Seats and Restraints
Adjust the head restraint so that the top of
the restraint is at the same height as the
top of the occupant's head. This position
reduces the chance of a neck injury in a
crash.
The height of the head restraint can be
adjusted.
To raise or lower the head restraint, press
the button located on the side of the head
restraint, and pull up or push the head
restraint down, and release the button. Pull
and push on the head restraint after the
button is released to make sure that it is
locked in place.
The front seat outboard head restraints are
not removable.
Rear Seats
Second Row Seats
The vehicle’s rear second row seats have
adjustable head restraints in the outboard
seating positions.
The height of the head restraint can be
adjusted. Pull the head restraint up to raise
it. Try to move the head restraint to make
sure that it is locked in place.
To lower the head restraint, press the
button, located on the top of the seatback,
and push the head restraint down. Try to
move the head restraint after the button is
released to make sure that it is locked in
place.The second row head restraints are not
removable.
Third Row Seats
The vehicle’s rear third row seats have head
restraints in the outboard seating positions
that cannot be adjusted up or down.
The rear third row outboard head restraints
are not removable.
The rear third row outboard head restraints
are designed to be folded.
The head restraint can be folded to allow for
better visibility when the rear seat is
unoccupied.
When folding the seatback down, the head
restraint will automatically fold out of the
way as the seat is folded down.
Return the lowered head restraint to the
upright position until it locks into place.
Push and pull on the head restraint to make
sure it is locked.