2021 GMC ACADIA airbag

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 89
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 90
Steering Wheel Controls . . . . . . . . . . . . . . . 90
Heated Steering Wheel . . . . . . . . . . . . . . . . 90
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Windshield Wiper/Washer . . . . . . . . . . . . . . 91
Rear Window Wiper/Washer . . . . . . . . . . . 92
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 94
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Instrument Cluster (Base and Midlevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Instrument Cluster (Uplevel) . . . . . . . . . . . 100
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 102
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Engine Oil Temperature Gauge . . . . . . . . 103
Engine Coolant Temperature Gauge . . . 104
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . 104
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 105
Airbag Readiness Light . . . . . . . . . . . . . . . . 105 Passenger Airbag Status Indicator . . . . . 106
Charging System Light . . . . . . . . . . . . . . . . . 107
Malfunction Indicator Lamp (Check
Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . 107
Brake System Warning Light . . . . . . . . . . 108
Electric Parking Brake Light . . . . . . . . . . . . 109
Service Electric Parking Brake Light
(Uplevel and Midlevel
Cluster Only) . . . . . . . . . . . . . . . . . . . . . . . . 109
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Gear Shifting Light . . . . . . . . . . . . . . . . . . . . . 110
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . 110
Hill Descent Control Light . . . . . . . . . . . . . . 110
Lane Keep Assist (LKA) Light . . . . . . . . . . . 110
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . 111
Pedestrian Ahead Indicator . . . . . . . . . . . . . 111
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . 111
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . 112
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . . 112
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . 113
Engine Oil Pressure Light . . . . . . . . . . . . . . . 113
Low Fuel Warning Light . . . . . . . . . . . . . . . . 114
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 114
High-Beam On Light . . . . . . . . . . . . . . . . . . . 114
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . 114
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 114 Cruise Control Light . . . . . . . . . . . . . . . . . . . . 115
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 115
Information Displays
Driver Information Center
(DIC) (Base) . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Driver Information Center (DIC) (Midlevel and Uplevel) . . . . . . . . . . . . . . . 117
Head-Up Display (HUD) . . . . . . . . . . . . . . . . 119
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . 122
Engine Power Messages . . . . . . . . . . . . . . . 123
Vehicle Speed Messages . . . . . . . . . . . . . . . 123
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 123
Universal Remote System
Universal Remote System . . . . . . . . . . . . . . 127
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . . . . . . 127
Universal Remote System Operation . . . 129

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 105
normal. If the vehicle is operating outside
the normal operating range, the charging
system light comes on. SeeCharging System
Light 0107.
Readings outside the normal operating
range can also occur when a large number
of electrical accessories are operating in the
vehicle and the engine is left idling for an
extended period. This condition is normal
since the charging system is not able to
provide full power at engine idle. As engine
speeds are increased, this condition should
correct itself as higher engine speeds allow
the charging system to create maximum
power.
The vehicle can only be driven for a short
time with the readings outside the normal
operating range. If the vehicle must be
driven, turn off all accessories, such as the
radio and air conditioner, and unplug all
chargers and accessories.
Readings outside the normal operating
range indicate a possible problem in the
electrical system. Have the vehicle serviced
as soon as possible.Seat Belt Reminders
Driver Seat Belt Reminder Light
There is a driver seat belt reminder light on
the instrument cluster.
When the vehicle is started, this light
flashes and a chime may come on to remind
the driver to fasten their seat belt.
Then the light stays on solid until the belt is
buckled. This cycle may continue several
times if the driver remains or becomes
unbuckled while the vehicle is moving.
If the driver seat belt is buckled, neither the
light nor the chime comes on.
Front Passenger Seat Belt Reminder
Light
The vehicle may have a front passenger seat
belt reminder light near the passenger
airbag status indicator. See Passenger
Sensing System 059.
When the vehicle is started, this light
flashes and a chime may come on to remind
passengers to fasten their seat belt.
Then the light stays on solid until the belt is
buckled. This cycle continues several times if
the front passenger remains or becomes
unbuckled while the vehicle is moving.
If the front passenger seat belt is buckled,
neither the chime nor the light comes on.
The front passenger seat belt reminder light
and chime may come on if an object is put
on the seat such as a briefcase, handbag,
grocery bag, laptop, or other electronic
device. To turn off the reminder light and/or
chime, remove the object from the seat or
buckle the seat belt.
Airbag Readiness Light
This light shows if there is an electrical
problem with the airbag system. The system
check includes the airbag sensor(s), the
passenger sensing system, the pretensioners,

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
106 Instruments and Controls
the airbag modules, the wiring, and the
crash sensing and diagnostic module. For
more information on the airbag system, see
Airbag System054.
The airbag readiness light comes on for
several seconds when the vehicle is started.
If the light does not come on then, have it
fixed immediately.
{Warning
If the airbag readiness light stays on
after the vehicle is started or comes on
while driving, it means the airbag system
might not be working properly. The
airbags in the vehicle might not inflate in
a crash, or they could even inflate
without a crash. To help avoid injury,
have the vehicle serviced right away.
If there is a problem with the airbag
system, a Driver Information Center (DIC)
message may also come on.
Passenger Airbag Status Indicator
The vehicle has a passenger sensing system.
See Passenger Sensing System 059 for
important safety information. The overhead
console has a passenger airbag status
indicator.
When the vehicle is started, the passenger
airbag status indicator will light ON and OFF,
or the symbol for on and off, for several
seconds as a system check. Then, after
several more seconds, the status indicator
will light either ON or OFF, or either the on
or off symbol, to let you know the status of
the front outboard passenger frontal airbag.
If the word ON, or the on symbol, is lit on
the passenger airbag status indicator, it
means that the front outboard passenger
frontal airbag is allowed to inflate. If the word OFF, or the off symbol, is lit on
the passenger airbag status indicator, it
means that the passenger sensing system
has turned off the front outboard passenger
frontal airbag.
If, after several seconds, both status
indicator lights remain on, or if there are no
lights at all, there may be a problem with
the lights or the passenger sensing system.
See your dealer for service.
{Warning
If the airbag readiness light ever comes
on and stays on, it means that
something may be wrong with the airbag
system. To help avoid injury to yourself
or others, have the vehicle serviced right
away. See
Airbag Readiness Light 0105
for more information, including important
safety information.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
122 Instruments and Controls
Navigation Turn-by-Turn Alerts shown in the
instrument cluster may also be displayed in
any HUD view.
Metric
English
Performance View : This displays digital
speed, indicators from speed view along
with rpm reading, transmission positions,
and gear shift indicator (if equipped).
Care of the HUD
Clean the inside of the windshield as needed
to remove any dirt or film that could reduce
the sharpness or clarity of the HUD image. Clean the HUD lens with a soft cloth
sprayed with glass cleaner. Wipe the lens
gently, then dry it.
HUD Troubleshooting
If you cannot see the HUD image when the
ignition is on, check that:
.Nothing is covering the HUD lens.
.The HUD brightness setting is not too
dim or too bright.
.The HUD is adjusted to the proper height.
.Polarized sunglasses are not worn.
.The windshield and HUD lens are clean.
If the HUD image is not correct, contact
your dealer.
The windshield is part of the HUD system.
See Windshield Replacement 0290.
Vehicle Messages
Messages displayed on the DIC indicate the
status of the vehicle or some action that
may be needed to correct a condition.
Multiple messages may appear one after
another. The messages that do not require
immediate action can be acknowledged and
cleared by pressing
V. The messages that
require immediate action cannot be cleared
until that action is performed.
All messages should be taken seriously;
clearing the message does not correct the
problem.
If a SERVICE message appears, see your
dealer.
Follow the instructions given in the
messages. The system displays messages
regarding the following topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Steering
.Ride Control Systems
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
134 Lighting
Hazard Warning Flashers
|:Press this button to make the front
and rear turn signal lamps flash on and off.
This warns others that you are having
trouble. Press again to turn the flashers off.
The turn signals do not work while the
hazard warning flashers are on.
The hazard warning flashers turn on
automatically if the airbags deploy.
Turn and Lane-Change Signals
Move the lever all the way up or down to
signal a turn.
An arrow on the instrument cluster will
flash in the direction of the turn or lane
change.
Raise or lower the lever until the arrow
starts to flash to signal a lane change. Hold
it there until the lane change is complete.
If the lever is moved momentarily to the
lane change position, the arrow will flash
three times. It will flash six times if Tow/
Haul Mode is active.
The lever returns to its starting position
when it is released.
If after signaling a turn or lane change, the
arrow flashes rapidly or does not come on, a
signal bulb may be burned out.
Have any burned out bulbs replaced. If a
bulb is not burned out, check the fuse. See
Instrument Panel Fuse Block 0296.
Fog Lamps
Use the fog lamps for better vision in foggy
or misty conditions.
To turn on the fog lamps, the ignition and
the headlamps or parking lamps must be on.
#:Turn the band down and release to
turn the fog lamps on or off. A light comes
on in the instrument cluster when the fog
lamps are in use. The ignition must be on
for the fog lamps to work.
When the headlamps are changed to high
beam, the fog lamps turn off. The fog lamps
come back on again when the high-beam
headlamps are turned off.
Some localities have laws that require the
headlamps to be on along with the fog
lamps.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Driving and Operating 213
Caution (Continued)
.Avoid making hard stops for the first
300 km (200 mi) or so. During this
time the new brake linings are not yet
broken in. Hard stops with new linings
can mean premature wear and earlier
replacement. Follow this breaking-in
guideline every time you get new
brake linings.
Following break-in, engine speed and load
can be gradually increased.
Ignition Positions
The vehicle has an electronic keyless ignition
with pushbutton start. The Remote Keyless Entry (RKE) transmitter
must be in the vehicle for the system to
operate. If the pushbutton start is not
working, the vehicle may be near a strong
radio antenna signal causing interference to
the Remote Keyless Entry (RKE) system. See
Remote Keyless Entry (RKE) System
Operation
07.
To shift out of P (Park), the vehicle must be
on and the brake pedal must be applied.
Stopping the Engine/LOCK/OFF (No Indicator
Lights) : When the vehicle is stopped, press
ENGINE START/STOP once to turn the
engine off.
If the vehicle is in P (Park), the ignition will
turn off, and Retained Accessory Power (RAP)
will remain active. See Retained Accessory
Power (RAP) 0217.
If the vehicle is in R (Reverse), D (Drive) or
L (Low), the vehicle will shift to P (Park), the
ignition will turn off, and Retained Accessory
Power (RAP) will remain active. If the vehicle
is in N (Neutral), the ignition will return to
ACC/ACCESSORY and display the message
SHIFT TO PARK in the Driver Information
Center (DIC). When the vehicle is shifted
into P (Park), the ignition will turn off. Do not turn the engine off when the vehicle
is moving. This will cause a loss of power
assist in the brake and steering systems and
disable the airbags.
If the vehicle must be shut off in an
emergency:
1. Brake using a firm and steady pressure. Do not pump the brakes repeatedly. This
may deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the vehicle is moving.
After shifting to N (Neutral), firmly apply
the brakes and steer the vehicle to a
safe location.
3. Come to a complete stop and shift to P (Park).
4. Set the parking brake. See Electric
Parking Brake 0224. And press ENGINE
START/STOP to turn the vehicle off.
{Warning
Turning off the vehicle while moving may
cause loss of power assist in the brake
and steering systems and disable the
airbags. While driving, only shut the
vehicle off in an emergency.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
266 Driving and Operating
Trailer Tires
Special Trailer (ST) tires differ from vehicle
tires. Trailer tires are designed with stiff
sidewalls to help prevent sway and to
support heavy loads. These features can
make it difficult to determine if the trailer
tire pressures are low only based on a visual
inspection.
Always check all trailer tire pressures before
each trip when the tires are cool. Low trailer
tire pressure is a leading cause of trailer tire
blow-outs.
Trailer tires deteriorate over time. The trailer
tire sidewall will show the week and year
the tire was manufactured. Many trailer tire
manufacturers recommend replacing tires
more than six years old.
Overloading is another leading cause of
trailer tire blow-outs. Never load your trailer
with more weight than the tires are
designed to support. The load rating is
located on the trailer tire sidewall.
Always know the maximum speed rating for
the trailer tires before driving. This may be
significantly lower than the vehicle tire
speed rating. The speed rating may be onthe trailer tire sidewall. If the speed rating is
not shown, the default trailer tire speed
rating is 105 km/h (65 mph).
Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. See
Malfunction
Indicator Lamp (Check Engine Light) 0107
. A device connected to the DLC —such
as an aftermarket fleet or driver-behavior
tracking device —may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment.
Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating.
The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see Servicing the Airbag-Equipped
Vehicle 063 and
Adding Equipment to the Airbag-Equipped
Vehicle 063.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
268 Vehicle Care
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM parts
and GM-trained and supported service
people.
Genuine GM parts have one of these marks:
California Proposition 65 Warning
{Warning
Most motor vehicles, including this one,
as well as many of its service parts and
fluids, contain and/or emit chemicals
known to the State of California to cause
cancer and birth defects or other
reproductive harm. Engine exhaust, many
parts and systems, many fluids, and
some component wear by-products
contain and/or emit these chemicals. For
more information go to
www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0288 and
Jump Starting - North America 0332 and the
back cover.
California Perchlorate Materials
Requirements
Certain types of automotive applications,
such as airbag initiators, seat belt
pretensioners, and lithium batteries
contained in electronic keys, may contain
perchlorate materials. Perchlorate Material –
special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and Modifications
Adding non-dealer accessories or making
modifications to the vehicle can affect
vehicle performance and safety, including
such things as airbags, braking, stability,
ride and handling, emissions systems,
aerodynamics, durability, and electronic
systems like antilock brakes, traction control,
and stability control. These accessories or
modifications could even cause malfunction
or damage not covered by the vehicle
warranty.