2021 GMC ACADIA fuel

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 103
English Uplevel
When the ignition is on, the fuel gauge
indicates about how much fuel is left in
the tank.
An arrow on the fuel gauge indicates the
side of the vehicle the fuel door is on.
When the indicator nears empty, the low
fuel light comes on. There is a small amount
of fuel left, but the fuel tank should be
filled soon.
Here are three things that some owners ask
about. None of these show a problem with
the fuel gauge:
.It takes a little more, or less fuel to fill up
than the gauge indicated. For example,
the gauge may have indicated the tank was half full, but it actually took a little
more, or less than half the tank's capacity
to fill the tank.
.The gauge moves a little while turning a
corner, speeding up or braking.
.The gauge takes a few seconds to
stabilize after the ignition is turned on
and goes back to empty when the
ignition is turned off.
Engine Oil Temperature Gauge
Metric
English
This gauge shows the engine oil
temperature.
If the gauge pointer moves into the high
end, it means that the engine oil has
overheated. If the vehicle has been operated
under normal driving conditions, pull off the
road, stop the vehicle, and turn off the
engine as soon as possible.
See Engine Oil 0276.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 107
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. SeeIgnition
Positions 0213.
Malfunctions are often indicated by the
system before any problem is noticeable.
Being aware of the light and seeking service
promptly when it comes on may prevent
damage.
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
(Continued)
Caution (Continued)
run smoothly. This could lead to costly
repairs that might not be covered by the
vehicle warranty.
Caution
Modifications to the engine, transmission,
exhaust, intake, or fuel system, or the
use of replacement tires that do not
meet the original tire specifications, can
cause this light to come on. This could
lead to costly repairs not covered by the
vehicle warranty. This could also affect
the vehicle’s ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications 0268.
If the light is flashing : A malfunction has
been detected that could damage the
emission control system and increase vehicle
emissions. Diagnosis and service may be
required.
To help prevent damage, reduce vehicle
speed and avoid hard accelerations and
uphill grades. If towing a trailer, reduce the
amount of cargo being hauled as soon as
possible.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
108 Instruments and Controls
If the light continues to flash, find a safe
place to park. Turn the vehicle off and wait
at least 10 seconds before restarting the
engine. If the light is still flashing, follow
the previous guidelines and see your dealer
for service as soon as possible.
If the light is on steady :A malfunction has
been detected. Diagnosis and service may be
required.
Check the following:
.If fuel has been added to the vehicle
using the capless fuel funnel adapter,
make sure that it has been removed. See
“Filling the Tank with a Portable Gas Can”
under Filling the Tank 0254. The
diagnostic system can detect if the
adapter has been left installed in the
vehicle, allowing fuel to evaporate into
the atmosphere. A few driving trips with
the adapter removed may turn off the
light.
.Poor fuel quality can cause inefficient
engine operation and poor driveability,
which may go away once the engine is
warmed up. If this occurs, change the fuel
brand. It may require at least one full
tank of the proper fuel to turn the light
off. See Recommended Fuel 0253.
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
0 266. 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.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
114 Instruments and Controls
Low Fuel Warning Light
A Low Fuel Warning Light near the fuel
gauge comes on briefly when the ignition is
turned on as a check to show it is working.
It also comes on when the fuel gauge
indicator nears empty. The light turns off
when fuel is added. If it does not, have the
vehicle serviced.
Security Light
The security light should come on briefly as
the engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. See
Immobilizer
Operation 026.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use. See Headlamp High/
Low-Beam Changer 0132.
IntelliBeam Light
This light comes on when the IntelliBeam
system, if equipped, is enabled. See Exterior
Lamp Controls 0131.
Front Fog Lamp Light
The fog lamp light comes on when the fog
lamps are in use.
The light goes out when the fog lamps are
turned off. See Fog Lamps0134 for more
information.
Lamps On Reminder
This light comes on when the exterior lamps
are in use, except when only the Daytime
Running Lamps (DRL) are active. See Exterior
Lamp Controls 0131.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
116 Instruments and Controls
3. PressVto enter the Options menu.
4. Scroll to Info Pages and press
p.
5. Press
worxto move through the list
of possible information displays.
6. Press
Vwhile an item is highlighted to
select or deselect that item. When an
item is selected, a checkmark will appear
next to it.
DIC Info Pages
The following is the list of all possible DIC
info page displays. Some may not be
available for your particular vehicle. Some
items may not be turned on by default but
can be turned on through the Options app.
See “DIC Info Page Options” earlier in this
section.
Speed : Shows the vehicle speed in either
kilometers per hour (km/h) or miles per
hour (mph). A speed limit sign can also be
shown, if equipped.
Trip A or Trip B : Shows the current distance
traveled, in either kilometers (km) or
miles (mi), since the trip odometer was last
reset. This also shows the approximate average
liters per 100 kilometers (L/100 km) or miles
per gallon (mpg). This number is calculated
based on the number of L/100 km (mpg)
recorded since the last time this menu item
was reset. This number reflects only the
approximate average fuel economy that the
vehicle has right now, and will change as
driving conditions change.
Press and hold
Vwhile this display is active
to reset the trip odometer and the average
fuel economy. Trip A and Trip B can also be
reset by pressing
pand choosing reset.
Fuel Range : Shows the approximate
distance the vehicle can be driven without
refueling. LOW will be displayed when the
vehicle is low on fuel. The fuel range
estimate is based on an average of the
vehicle's fuel economy over recent driving
history and the amount of fuel remaining in
the fuel tank.
Remaining Oil Life : Shows an estimate of
the oil's remaining useful life. If REMAINING
OIL LIFE 99% is displayed, that means 99%
of the current oil life remains.
When the remaining oil life is low, the
CHANGE ENGINE OIL SOON message will
appear on the display. The oil should be changed as soon as possible. See
Engine Oil
0 276. In addition to the engine oil life
system monitoring the oil life, additional
maintenance is recommended in the
Maintenance Schedule. See Maintenance
Schedule 0346.
The Oil Life display must be reset after each
oil change. It will not reset itself. Do not to
reset the Oil Life display at any time other
than when the oil has just been changed.
It cannot be reset accurately until the next
oil change. To reset, see Engine Oil Life
System 0278.
Tire Pressure : Shows the approximate
pressures of all four tires. Tire pressure is
displayed in either kilopascal (kPa) or in
pounds per square inch (psi). If the pressure
is low, the value for that tire is shown in
amber. See Tire Pressure Monitor System
0 309 and
Tire Pressure Monitor Operation 0310.
Average Vehicle Speed : Displays the
average vehicle speed of the vehicle in
kilometers per hour (km/h) or miles per
hour (mph). This average is based on the
various vehicle speeds recorded since the
last reset. Reset the average speed by
pressing
Vwhen it is displayed.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 117
Fuel Economy :The center displays the
approximate instantaneous fuel economy as
a number and bar graph. Displayed above
the bar graph is a running average of fuel
economy for the most recently traveled
selected distance. Displayed below the bar
graph is the best average fuel economy that
has been achieved for the selected distance.
The selected distance is displayed at the top
of the page as “last xxx mi/km.”
Press
Vto select the distance or reset best
value. Use
wandxto choose the
distance and press
V. Presswandxto
select “Reset Best Score.” Press
Vto reset
the best average fuel economy. After reset,
the best value displays “-,-”until the
selected distance has been traveled.
The display provides information on how
current driving behavior affects the running
average and how well recent driving
compares to the best that has been
achieved for the selected distance.
Economy Trend : Shows history of the
Average Fuel Economy from the last 50 km
(30 mi). Each bar represents about 5 km
(3 mi) of driving. During driving the bars will
shift to always reflect the most recent distance on the right side. Press and hold
V
to clear the graph or to reset through
the menu.
ECO Index :
Provides feedback on the
efficiency of current driving behavior. The
bar graph shows a value that is based on
current fuel consumption compared to what
is expected from the vehicle with good and
bad driving habits.
Timer : This display can be used as a timer.
To start the timer, press
Vwhile this
display is active. The display will show the
amount of time that has passed since the
timer was last reset. To stop the timer,
press
Vbriefly while this display is active
and the timer is running. To reset the timer
to zero, press and hold
Vwhile this display
is active, or press
pand select reset.
Battery Voltage : Displays the current
battery voltage, if equipped. Battery voltage
changes are normal while driving. See
Charging System Light 0107. If there is a
problem with the battery charging system,
the DIC will display a message. Transmission Fluid Temperature :
Shows the
temperature of the automatic transmission
fluid in either degrees Celsius (°C) or degrees
Fahrenheit (°F).
Blank Page : Shows no information.
Driver Information Center (DIC)
(Midlevel and Uplevel)
The DIC displays are shown in the center of
the instrument cluster in the Info app. See
Instrument Cluster (Base and Midlevel) 097
or
Instrument Cluster (Uplevel) 0100. The
displays show the status of many vehicle
systems. The controls for the DIC are on the
right steering wheel control.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
118 Instruments and Controls
worx:Press to move up or down in
a list.
oorp: Press to move between the
interactive display zones in the cluster.
V: Press to open a menu or select a menu
item. Press and hold to reset values on
certain screens.
DIC Info Page Options
The info pages on the DIC can be turned on
or off through the Options menu.
1. Press
pto go to the Options
application.
2. Press
Vto enter the Options menu.
3. Press
worxto move through the list
of possible information displays.
4. Press
Vwhile an item is highlighted to
select or deselect that item. When an
item is selected, a checkmark will appear
next to it.
DIC Info Pages
The following is the list of all possible DIC
info page displays. Some may not be
available for your particular vehicle. Some
items may not be turned on by default but can be turned on through the Options app.
See
“DIC Info Page Options” earlier in this
section.
Speed : Shows the vehicle speed in either
kilometers per hour (km/h) or miles per
hour (mph). The vehicle odometer is also
shown on this page.
Trip A or Trip B, Average Fuel Economy, and
Average Speed : Shows the current distance
traveled, in either kilometers (km) or
miles (mi), since the trip odometer was last
reset.
The Average Fuel Economy display shows
the approximate average liters per
100 kilometers (L/100 km) or miles per
gallon (mpg). This number is calculated
based on the number of L/100 km (mpg)
recorded since the last time this menu item
was reset. This number reflects only the
approximate average fuel economy that the
vehicle has right now, and will change as
driving conditions change.
The Average Speed display shows the
average speed of the vehicle in kilometers
per hour (km/h) or miles per hour (mph).
This average is calculated based on the
various vehicle speeds recorded since the
last reset of this value. Press and hold
Vwhile this display is active
to reset the trip odometer, the average fuel
economy, and the average speed. Or press
pand select reset in the menu.
Fuel Range and Instantaneous Fuel
Economy : Shows the approximate distance
the vehicle can be driven without refueling.
LOW will be displayed when the vehicle is
low on fuel. The fuel range estimate is
based on an average of the vehicle's fuel
economy over recent driving history and the
amount of fuel remaining in the fuel tank.
The Instantaneous Fuel Economy display
shows the current fuel economy in either
liters per 100 kilometers (L/100 km) or miles
per gallon (mpg). This number reflects only
the approximate fuel economy that the
vehicle has right now and changes
frequently as driving conditions change.
Timer : Can be used as a timer. To start the
timer, press
Vwhile this display is active.
The display will show the amount of time
that has passed since the timer was last
reset. To stop the timer, press
Vbriefly
while this display is active and the timer is
running. To reset the timer to zero, press
and hold
Vwhile this display is active.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-14608671) - 2021 - CRC - 10/26/20
Instruments and Controls 119
Oil Life :Shows an estimate of the oil's
remaining useful life. If REMAINING OIL
LIFE 99% is displayed, that means 99% of
the current oil life remains.
When the remaining oil life is low, the
CHANGE ENGINE OIL SOON message will
appear on the display. The oil should be
changed as soon as possible. See Engine Oil
0 276. In addition to the engine oil life
system monitoring the oil life, additional
maintenance is recommended in the
Maintenance Schedule. See Maintenance
Schedule 0346.
The Oil Life display must be reset after each
oil change. It will not reset itself. Do not to
reset the Oil Life display at any time other
than when the oil has just been changed.
It cannot be reset accurately until the next
oil change. To reset, see Engine Oil Life
System 0278.
Tire Pressure : Shows the approximate
pressures of all four tires. Tire pressure is
displayed in either kilopascal (kPa) or in
pounds per square inch (psi). If the pressure
is low, the value for that tire is shown in
amber. See Tire Pressure Monitor System
0 309 and
Tire Pressure Monitor Operation 0310. Best Fuel Economy :
Displays average fuel
economy, the best fuel economy over the
selected distance, and a bar graph showing
instantaneous fuel economy.
Press
pto change the selected distance.
Press and hold
Vwhile this display is active
to reset the best fuel economy and average
fuel economy. This display can also be reset
by selecting reset in the menu.
Top Consumers : Shows a list of the features
that are currently impacting the fuel
economy, in order from highest to lowest.
If a feature is turned off, it will be removed
from the list.
Economy Trend : Shows history of the
Average Fuel Economy from the last 50 km
(30 mi). Each bar represents about 5 km
(3 mi) of driving. During driving the bars will
shift to always reflect the most recent
distance on the right side. Press and hold
V
to clear the graph or presspto reset
through the menu.
ECO Index : Provides feedback on the
efficiency of current driving behavior. The
bar graph shows a value that is based on
current fuel consumption compared to what
is expected from the vehicle with good and
bad driving habits. Speed Signs :
Shows sign information, which
comes from a roadway database in the
onboard navigation.
Off Road : Displays vehicle pitch and roll
information, road wheel angle, and
four-wheel drive (4WD) status.
Following Distance : The following distance
to a moving vehicle ahead in your path is
indicated in following time in seconds. See
Forward Collision Alert (FCA) System 0245.
Blank Page : Shows no information.
Transmission Fluid Temperature Gauge :
Shows the temperature of the automatic
transmission fluid in either degrees
Celsius (°C) or degrees Fahrenheit (°F).
Head-Up Display (HUD)
{Warning
If the HUD image is too bright or too
high in your field of view, it may take
you more time to see things you need to
see when it is dark outside. Be sure to
keep the HUD image dim and placed low
in your field of view.