warning light GMC ACADIA 2020 User Guide

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Seats and Restraints 73
The passenger sensing system is
designed to turn on the front
outboard passenger frontal airbag
anytime the system senses that a
person of adult size is sitting
properly in the front outboard
passenger seat.
When the passenger sensing
system has allowed the airbag to be
enabled, the ON indicator will light
and stay lit as a reminder that the
airbag is active.
For some children, including
children in child restraints, and for
very small adults, the passenger
sensing system may or may not turn
off the front outboard passenger
frontal airbag, depending upon the
person's seating posture and body
build. Everyone in the vehicle who
has outgrown child restraints should
wear a seat belt properly—whether
or not there is an airbag for that
person.
{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 0126 for more information,
including important safety
information.
If the On Indicator Is Lit for a
Child Restraint
The passenger sensing system is
designed to turn off the front
outboard passenger frontal airbag if
the system determines that an infant
is present in a child restraint. If a
child restraint has been installed
and the ON indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle. 3. Remove any additional items
from the seat such as blankets,
cushions, seat covers, seat
heaters, or seat massagers.
4. Reinstall the child restraint following the directions
provided by the child restraint
manufacturer and refer to
Securing Child Restraints (With
the Seat Belt in the Rear Seat)
093 or
Securing Child Restraints (With
the Seat Belt in the Front Seat)
0 95.
Make sure the seat belt
retractor is locked by pulling
the shoulder belt all the way
out of the retractor when
installing the child restraint,
even if the child restraint is
equipped with a seat belt lock
off. When the retractor lock is
set, the belt can be tightened
but not pulled out of the
retractor.
5. If, after reinstalling the child restraint and restarting the
vehicle, the ON indicator is still
lit, turn the vehicle off. Then

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Seats and Restraints 77
Airbag System Check
The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See
Airbag Readiness Light0126.
Caution
If an airbag covering is damaged,
opened, or broken, the airbag
may not work properly. Do not
open or break the airbag
coverings. If there are any
opened or broken airbag
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, see Where Are the
Airbags? 066. See your dealer
for service.
Replacing Airbag System
Parts after a Crash
{Warning
A crash can damage the airbag
systems in the vehicle.
A damaged airbag system may
not properly protect you and your
passenger(s) in a crash, resulting
in serious injury or even death. To
help make sure the airbag
systems are working properly
after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See
your dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light 0126.
Child Restraints
Older Children
Older children who have outgrown
booster seats should wear the
vehicle’s seat belts.
The manufacturer instructions that
come with the booster seat state the
weight and height limitations for that
booster. Use a booster seat with a
lap-shoulder belt until the child
passes the fit test below:

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Instruments and Controls 105
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 106
Steering Wheel Controls . . . . . . 107
Heated Steering Wheel . . . . . . . 107
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Windshield Wiper/Washer . . . . 107
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 109
Compass . . . . . . . . . . . . . . . . . . . . . 110
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 110
Power Outlets . . . . . . . . . . . . . . . . 110
Wireless Charging . . . . . . . . . . . . 112
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 114
Instrument Cluster (Base and
Midlevel) . . . . . . . . . . . . . . . . . . . . 115
Instrument Cluster (Uplevel) . . . . . . . . . . . . . . . . . . . . 119
Speedometer . . . . . . . . . . . . . . . . . 121
Odometer . . . . . . . . . . . . . . . . . . . . . 121
Trip Odometer . . . . . . . . . . . . . . . . 121
Tachometer . . . . . . . . . . . . . . . . . . . 121 Fuel Gauge . . . . . . . . . . . . . . . . . . . 122
Engine Oil Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 123
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 123
Voltmeter Gauge . . . . . . . . . . . . . 124
Seat Belt Reminders . . . . . . . . . 125
Airbag Readiness Light . . . . . . . 126
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 126
Charging System Light . . . . . . . 127
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 127
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 129
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 130
Service Electric Parking Brake Light (Uplevel and Midlevel
Cluster Only) . . . . . . . . . . . . . . . . 130
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 130
Gear Shifting Light . . . . . . . . . . . 131
Tow/Haul Mode Light . . . . . . . . . 131
Hill Descent Control Light . . . . 131
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 131
Vehicle Ahead Indicator . . . . . . 132
Pedestrian Ahead Indicator . . . 132
Traction Off Light . . . . . . . . . . . . . 132 StabiliTrak OFF Light . . . . . . . . . 133
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 133
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 133
Tire Pressure Light . . . . . . . . . . . 134
Engine Oil Pressure Light . . . . 134
Low Fuel Warning Light . . . . . . 135
Security Light . . . . . . . . . . . . . . . . . 135
High-Beam On Light . . . . . . . . . . 135
Front Fog Lamp Light . . . . . . . . . 136
Lamps On Reminder . . . . . . . . . 136
Cruise Control Light . . . . . . . . . . 136
Door Ajar Light . . . . . . . . . . . . . . . 136
Information Displays
Driver Information Center (DIC) (Base) . . . . . . . . . . . . . . . . 137
Driver Information Center (DIC) (Midlevel and Uplevel) . . . . . . 139
Head-Up Display (HUD) . . . . . . 142
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 145
Engine Power Messages . . . . . 146
Vehicle Speed Messages . . . . . 146
Vehicle Personalization
Vehicle Personalization . . . . . . . 146

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
114 Instruments and Controls
THIS SOFTWARE IS PROVIDED
BY THE COPYRIGHT HOLDERS
AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT
NOT LIMITED TO, THE IMPLIED
WARRANTIES OF
MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT
SHALL THE COPYRIGHT HOLDER
OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL,
EXEMPLARY, OR
CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITEDTO, PROCUREMENT OF
SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.Warning Lights,
Gauges, and
Indicators
Warning lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.
Some warning lights come on briefly
when the engine is started to
indicate they are working. When
one of the warning lights comes on
and stays on while driving, or when
one of the gauges shows there may
be a problem, check the section that
explains what to do. Waiting to do
repairs can be costly and even
dangerous.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
116 Instruments and Controls
Base Cluster Menu
There is an interactive display area
in the center of the instrument
cluster.
Use the right steering wheel control
to open and scroll through the
different items and displays.
Press
oto access the cluster
applications. Use
worxthrough
the list of available applications. Not
all applications will be available on
all vehicles.
. Info App. This is where the
selected Driver Information
Center (DIC) displays can be viewed. See
“Driver Information
Center (DIC) (Base and
Midlevel)” in the Index.
. Options
Options
Press
Vto select the Options app,
then press
pto enter the Options
menu. Use
worxto scroll through
items in the Options menu.
Units : Press
pwhile Units is
displayed to enter the Units menu.
Choose English or Metric units by
pressing
Vwhile the desired item is
highlighted.
Info Pages : Press
pwhile Info
Pages is displayed to enter the Info
Pages menu and select the items to
be displayed in the Info app.
Speed Warning : The Speed
Warning display allows you to set a
speed not to be exceeded. To set,
press
pwhen Speed Warning is
displayed.
Scroll
worxto adjust the value.
Press
Vto set the speed. Once the speed is set, this feature
can be turned off by pressing
V
while viewing this page. If the
selected speed limit is exceeded, a
pop-up warning is displayed with a
chime.
Midlevel Cluster Menu
There is an interactive display area
in the center of the instrument
cluster.
Use the right steering wheel control
to open and scroll through the
different items and displays.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
124 Instruments and Controls
English Base and Midlevel
Metric Uplevel
English Uplevel
This gauge shows the engine
coolant temperature.
If the pointer moves toward the
warning area at the high end of the
gauge, the engine is too hot.
If the engine coolant has
overheated and the vehicle has
been operating under normal driving
conditions, pull off the road, stop the
vehicle, and turn off the engine as
soon as possible. See Engine
Overheating 0279.
Voltmeter Gauge
When the ignition is on, this gauge
indicates the battery voltage.
When the engine is running, this
gauge shows the condition of the
charging system. The gauge can
transition from a higher to lower or a
lower to higher reading. This is
normal. If the vehicle is operating
outside the normal operating range,
the charging system light comes on.
See Charging System Light 0127.
Readings outside the normal
operating range can also occur
when a large number of electrical

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
126 Instruments and Controls
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,
the airbag modules, the wiring, and
the crash sensing and diagnostic
module. For more information on the
airbag system, seeAirbag System
0 64.
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 071 for important safety information. The overhead
console has a passenger airbag
status indicator.
United States and Canada
Mexico
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.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Instruments and Controls 127
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(Continued)
Warning (Continued)
away. SeeAirbag Readiness
Light 0126 for more information,
including important safety
information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
If the light stays on, or comes on
while driving, there may be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the battery. When this light comes on, the Driver
Information Center (DIC) also
displays a message.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction Indicator
Lamp (Check Engine
Light)
This light is part of the vehicle’s
emission control on-board
diagnostic system. If this light is on
while the engine is running, a
malfunction has been detected and
the vehicle may require service. The
light should come on to show that it
is working when the ignition is in
Service Mode. See
Ignition
Positions 0190.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Instruments and Controls 129
least one full tank of the proper
fuel to turn the light off. See
Recommended Fuel0242.
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the
test equipment will likely connect to
the vehicle's Data Link
Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. Connecting devices that are
not used to perform an Emissions
Inspection/Maintenance test or to
service the vehicle may affect
vehicle operation. See Add-On
Electrical Equipment 0258. See
your dealer if assistance is needed. The vehicle may not pass
inspection if:
.
The light is on when the engine
is running.
. The light does not come on
when the ignition is in
Service Mode.
. Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if
the 12-volt battery has recently
been replaced or run down, or if
the vehicle has been recently
serviced.
See your dealer if the vehicle will
not pass or cannot be made ready
for the test.
Brake System Warning
Light
MetricEnglish
This light should come on briefly
when the vehicle is turned on. If it
does not come on then, have it fixed
so it will be ready to warn you if
there is a problem.
If the light comes on and stays on at
start up, there is a brake problem.
Have the brake system inspected
right away.
If the light comes on while driving,
pull off the road and stop carefully.
The brake pedal might be harder to
push, or the brake pedal may go
closer to the floor. It could take
longer to stop. If the light is still on,
have the vehicle towed for service.
See Towing the Vehicle 0338.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
130 Instruments and Controls
{Warning
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Electric Parking Brake
Light
MetricEnglish
This light comes on when the
parking brake is applied. If the light
continues flashing after the parking
brake is released, or while driving,
there is a problem with the Electric Parking Brake system. A message
may also display in the Driver
Information Center (DIC).
If the light does not come on,
or remains flashing, see your dealer.
Service Electric Parking
Brake Light (Uplevel and
Midlevel Cluster Only)
On some vehicles the service
electric parking brake light should
come on briefly when the vehicle is
started. If it does not come on, have
it fixed so it will be ready to warn if
there is a problem. For vehicles with
the reconfigurable cluster, this light
may not come on when the vehicle
is started.
If this light stays on, the vehicle
should be taken to a dealer as soon
as possible. See
Electric Parking
Brake 0207. A message may also
display in the Driver Information
Center (DIC).
Antilock Brake System
(ABS) Warning Light
This warning light should come on
briefly when the vehicle is turned
on. If the light does not come on,
have it fixed so it will be ready to
warn if there is a problem.
If the light comes on while driving,
safely stop as soon as it is possible
and turn off the vehicle. Then turn
on the vehicle again to reset the
system.