2021 GMC ACADIA airbag

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Vehicle Care 269
Damage to suspension components caused
by modifying vehicle height outside of
factory settings will not be covered by the
vehicle warranty.
Damage to vehicle components resulting
from modifications or the installation or use
of non-GM certified parts, including control
module or software modifications, is not
covered under the terms of the vehicle
warranty and may affect remaining
warranty coverage for affected parts.
GM Accessories are designed to complement
and function with other systems on the
vehicle. See your dealer to accessorize the
vehicle using genuine GM Accessories
installed by a dealer technician.
Also, seeAdding Equipment to the
Airbag-Equipped Vehicle 063.Vehicle Checks
Doing Your Own Service Work
{Warning
It can be dangerous to work on your
vehicle if you do not have the proper
knowledge, service manual, tools,
or parts. Always follow owner’s manual
procedures and consult the service
manual for your vehicle before doing any
service work.
If doing some of your own service work, use
the proper service manual. It tells you much
more about how to service the vehicle than
this manual can. To order the proper service
manual, see Publication Ordering
Information 0371. This vehicle has an airbag system. Before
attempting to do your own service work,
see
Servicing the Airbag-Equipped Vehicle
0 63.
If equipped with remote vehicle start, open
the hood before performing any service
work to prevent remote starting the vehicle
accidentally. See Remote Vehicle Start 013.
Keep a record with all parts receipts and list
the mileage and the date of any service
work performed. See Maintenance Records
0 357.
Caution
Even small amounts of contamination can
cause damage to vehicle systems. Do not
allow contaminants to contact the fluids,
reservoir caps, or dipsticks.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Vehicle Care 297
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
F1 Body control module 6
F2 Diagnostic link/Central gateway module
F3 Electric steering column lock
F4 –
F5 Logistics
F6 Heating, ventilation, and air conditioning
F7 Body control module 3
F8 Park aid/Electronic range select hybrid
F9 Front passenger heated seat
F10 Airbag/Seat belt F11 –
F12 Amplifier
F13 Body control module 7
F14 Driver heated seat F15 Instrument panel switch bank
F16 Sunroof Fuses Usage
F17 Body control module 1
F18 Instrument cluster/Head up display
F19 –
F20 Rear seat entertainment F21 Body control module 4
F22 Infotainment USB data/ Aux jack
F23 Body control module 2
F24 USB charger/Wireless charging
F25 Park aid/Electronic transmission range
system
F26 CIM F27 Video/Night vision module
F28 Heating, ventilation, and air conditioning
display
F29 Radio
F30 Steering wheel adjustment controls

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
316 Vehicle Care
Warning (Continued)
death. Only your dealer or authorized
tire service center should mount or
dismount the tires.
{Warning
Mixing tires of different sizes (other
than those originally installed on the
vehicle), brands, tread patterns,
or types may cause loss of vehicle
control, resulting in a crash or other
vehicle damage. Use the correct size,
brand, and type of tire on all wheels.
{Warning
Using bias-ply tires on the vehicle
may cause the wheel rim flanges to
develop cracks after many miles of
driving. A tire and/or wheel could fail
suddenly and cause a crash. Use only
radial-ply tires with the wheels on
the vehicle. Winter tires with the same speed rating
as the original equipment tires may not
be available for H, V, W, Y and ZR
speed rated tires. Never exceed the
winter tires’
maximum speed capability
when using winter tires with a lower
speed rating.
If the vehicle tires must be replaced
with a tire that does not have a TPC
Spec number, make sure they are the
same size, load range, speed rating, and
construction (radial) as the original
tires.
The Tire and Loading Information label
indicates the original equipment tires
on the vehicle. See Vehicle Load Limits
0 209.
Different Size Tires and Wheels
If wheels or tires are installed that are a
different size than the original equipment
wheels and tires, vehicle performance,
including its braking, ride and handling
characteristics, stability, and resistance to
rollover may be affected. If the vehicle has
electronic systems such as antilock brakes,
rollover airbags, traction control, electronic stability control, or All-Wheel Drive, the
performance of these systems can also be
affected.
{Warning
If different sized wheels are used, there
may not be an acceptable level of
performance and safety if tires not
recommended for those wheels are
selected. This increases the chance of a
crash and serious injury. Only use GM
specific wheel and tire systems developed
for the vehicle, and have them properly
installed by a GM certified technician.
See Buying New Tires 0315 and
Accessories and Modifications 0268.
Uniform Tire Quality Grading
The following information relates to the
system developed by the United States
National Highway Traffic Safety
Administration (NHTSA), which grades
tires by treadwear, traction, and
temperature performance. This applies
only to vehicles sold in the United
States. The grades are molded on the
sidewalls of most passenger car tires.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
370 Customer Information
GM vehicle by limiting compensation for
damage repairs through the use of
aftermarket collision parts. Some insurance
companies will not specify aftermarket
collision parts. When purchasing insurance,
we recommend that you ensure that the
vehicle will be repaired with GM original
equipment collision parts. If such insurance
coverage is not available from your current
insurance carrier, consider switching to
another insurance carrier.
If the vehicle is leased, the leasing company
may require you to have insurance that
ensures repairs with Genuine GM Original
Equipment Manufacturer (OEM) parts or
Genuine Manufacturer replacement parts.
Read the lease carefully, as you may be
charged at the end of the lease for poor
quality repairs.
If a Crash Occurs
If there has been an injury, call emergency
services for help. Do not leave the scene of
a crash until all matters have been taken
care of. Move the vehicle only if its position
puts you in danger, or you are instructed to
move it by a police officer.Give only the necessary information to
police and other parties involved in the
crash.
For emergency towing see
Roadside
Assistance Program 0366.
Gather the following information:
.Driver name, address, and telephone
number
.Driver license number
.Owner name, address, and telephone
number
.Vehicle license plate number
.Vehicle make, model, and model year
.Vehicle Identification Number (VIN)
.Insurance company and policy number
.General description of the damage to the
other vehicle
Choose a reputable repair facility that uses
quality replacement parts. See “Collision
Parts” earlier in this section.
If the airbag has inflated, see What Will You
See after an Airbag Inflates? 058.
Managing the Vehicle Damage Repair
Process
In the event that the vehicle requires
damage repairs, GM recommends that you
take an active role in its repair. If you have
a pre-determined repair facility of choice,
take the vehicle there, or have it towed
there. Specify to the facility that any
required replacement collision parts be
original equipment parts, either new
Genuine GM parts or recycled original GM
parts. Remember, recycled parts will not be
covered by the GM vehicle warranty.
Insurance pays the bill for the repair, but
you must live with the repair. Depending on
your policy limits, your insurance company
may initially value the repair using
aftermarket parts. Discuss this with the
repair professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have the
vehicle repaired with Genuine GM parts,
even if your insurance coverage does not
pay the full cost.
If another party's insurance company is
paying for the repairs, you are not obligated
to accept a repair valuation based on that
insurance company's collision policy repair
limits, as you have no contractual limits

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
372 Customer Information
To contact NHTSA, you may call the
Vehicle Safety Hotline toll-free at
1-888-327-4236 (TTY: 1-800-424-9153); go
tohttp://www.safercar.gov; or
write to:
Administrator, NHTSA
1200 New Jersey Avenue, S.E.
Washington, D.C. 20590
You can also obtain other information
about motor vehicle safety from
http://www.safercar.gov
.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe
that the vehicle has a safety defect,
notify Transport Canada immediately,
and notify General Motors of Canada
Company. Call Transport Canada at
1-800-333-0510; go to:
www.tc.gc.ca/recalls (English)
www.tc.gc.ca/rappels (French) or write to:
Transport Canada
Motor Vehicle Safety Directorate
Defect Investigations and Recalls
Division
80 Noel Street
Gatineau
,QC J8Z 0A1
Reporting Safety Defects to
General Motors
In addition to notifying NHTSA (or Transport
Canada) in a situation like this, notify
General Motors.
In the U.S., call 1-800-462-8782, or write:
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada, call 1-800-263-3777 (English) or
1-800-263-7854 (French), or write:
General Motors of Canada Company
Customer Care Centre, Mail Code:
CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7In Mexico, call 800-466-0812 or
800-466-0801.
In other Central America and Caribbean
Countries, call 52-555-901-2369.
Vehicle Data Recording and
Privacy
The vehicle has a number of computers that
record information about the vehicle’s
performance and how it is driven or used.
For example, the vehicle uses computer
modules to monitor and control engine and
transmission performance, to monitor the
conditions for airbag deployment and
deploy them in a crash, and, if equipped, to
provide antilock braking to help the driver
control the vehicle. These modules may
store data to help the dealer technician
service the vehicle or to help GM improve
safety or features. Some modules may also
store data about how the vehicle is
operated, such as rate of fuel consumption
or average speed. These modules may retain
personal preferences, such as radio presets,
seat positions, and temperature settings.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
Index 383
IndexA
Accessories and Modifications . . . . . . . . . . . 268
Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Active Fuel Management . . . . . . . . . . . . . . . . 219
Adaptive Cruise Control . . . . . . . . . . . . . . . . . . 232
Add-On Electrical Equipment . . . . . . . . . . . . . 266
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Additional Maintenance and Care . . . . . . . . . 351
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . . . . . 38
Agreements Trademarks and License . . . . . . . . . . . . . . . 183
Air Cleaner/Filter, Engine . . . . . . . . . . . . . . . . 279
Air Conditioning . . . . . . . . . . . . . . . . . . . . .192, 196
Air Filter
Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Air Filter, Passenger Compartment . . . . . . . 197
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
How Does an Airbag Restrain? . . . . . . . . . . 58
Passenger Sensing System . . . . . . . . . . . . . . 59
What Makes an Airbag Inflate? . . . . . . . . . 58
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
When Should an Airbag Inflate? . . . . . . . . 57
Where Are the Airbags? . . . . . . . . . . . . . . . . 55 Airbags
Adding Equipment to the Vehicle . . . . . . . 63
Passenger Status Indicator . . . . . . . . . . . . . 106
Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . 105
Servicing Airbag-Equipped Vehicles . . . . . . 63
System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Alarm
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 25
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Side Blind Zone (SBZA) . . . . . . . . . . . . . . . . . 250
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 301
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 302
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . 224, 289
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Antilock Brake System (ABS) . . . . . . . . . . . . . 224 Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 110
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Apple CarPlay and Android Auto . . . . . . . . . . 173
Armrest Storage . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Assistance Program, Roadside . . . . . . . . . . . . 366
Assistance Systems for Driving . . . . . . . . . . 245
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .241

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
388 Index
Infants and Young Children, Restraints . . . . 66
InformationPublication Ordering . . . . . . . . . . . . . . . . . . . . 371
Infotainment System . . . . . . . . . . . . . . . . . . . . 374
Instrument Cluster . . . . . . . . . . . . . . . . . . . 97, 100
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . 28
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 138
J
Jump Starting - North America . . . . . . . . . . . 332
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . . . . . . 7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 302
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Daytime Running (DRL) . . . . . . . . . . . . . . . . 133
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . . 131
Exterior Lamps Off Reminder . . . . . . . . . . 132
Exterior Lighting Battery Saver . . . . . . . . . 137
Malfunction Indicator (CheckEngine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Lamps (cont'd)
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . 250
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . . . 252
Lane Keep Assist Light . . . . . . . . . . . . . . . . . . . .110
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 50
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 78
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Illumination Control . . . . . . . . . . . . . . . . . . . 135
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . 105
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Brake System Warning . . . . . . . . . . . . . . . . 108
Charging System . . . . . . . . . . . . . . . . . . . . . . 107
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Electric Parking Brake . . . . . . . . . . . . . . . . . . 109 Lights (cont'd)
Engine Coolant Temperature
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 113
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 114
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . 110
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 114
High/Low Beam Changer . . . . . . . . . . . . . . 132
Hill Descent Control . . . . . . . . . . . . . . . . . . . 110
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . 110
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . 114
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 105
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Service Electric Parking Brake . . . . . . . . . . 109
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 110
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . . 112
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . 17
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-14608671) - 2021 - CRC - 10/26/20
390 Index
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 218
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .241
Parking
Brake and P (Park) MechanismCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Over Things That Burn . . . . . . . . . . . . . . . . . 219
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . . . . . . 241
Passenger Airbag Status Indicator . . . . . . . . 106
Passenger Compartment Air Filter . . . . . . . 197
Passenger Sensing System . . . . . . . . . . . . . . . . 59
Pedestrian Ahead Indicator . . . . . . . . . . . . . . . 111
Perchlorate Materials Requirements, California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Phone Apple CarPlay and Android Auto . . . . . . . . 173
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . 168, 169
Port
USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Positioning Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Power
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Protection, Battery . . . . . . . . . . . . . . . . . . . . . . 137
Retained Accessory (RAP) . . . . . . . . . . . . . . . 217
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 37
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pregnancy, Using Seat Belts . . . . . . . . . . . . . . .52
Privacy Vehicle Data Recording . . . . . . . . . . . . . . . . 372
Problems with Route Guidance . . . . . . . . . . 162
Program Courtesy Transportation . . . . . . . . . . . . . . . 368
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . . 254
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . 268, 288, 332, Back Cover
Publication Ordering Information . . . . . . . . . 371
R
Radio HD Radio Technology . . . . . . . . . . . . . . . . . . 145
Radio Data System (RDS) . . . . . . . . . . . . . . . . 146
Radio Frequency Statement . . . . . . . . . . . . . . . 371
Radio Reception . . . . . . . . . . . . . . . . . . . . . . . . . .147 Radios
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Rear Camera Mirror . . . . . . . . . . . . . . . . . . . . . . . 28
Rear Climate Control System . . . . . . . . . . . . 196
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Rear Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Rear Vision Camera (RVC) . . . . . . . . . . . . . . . . .241
Rear Window Washer/Wiper . . . . . . . . . . . . . 92
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 28 Automatic Dimming . . . . . . . . . . . . . . . . . . . . 28
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . . . 38
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Recommended Fluids and Lubricants . . . . . 354
Records Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Recreational Vehicle Towing . . . . . . . . . . . . . 335
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Remote Keyless Entry (RKE) System . . . . . . . .7
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . . . . 13