2020 GMC ACADIA warning light

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Introduction 3
Danger, Warning, and
Caution
Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: Shown when the owner ’s
manual has additional instructions
or information.
*: Shown when the service
manual has additional instructions
or information.
0: Shown when there is more
information on another page —
“see page.”
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. See the
features in this manual for
information.
u: Air Conditioning System
G: Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!: Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
_: Flame/Fire Prohibited

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
6 Introduction
1.Air Vents 0171.
2. Exterior Lamp Controls 0155.
Turn Signal Lever. See Turn
and Lane-Change Signals
0 159.
3. Instrument Cluster (Base and
Midlevel) 0115 or
Instrument Cluster (Uplevel)
0 119.
4. Windshield Wiper/Washer
0107.
Rear Window Wiper/Washer
0 109.
5. Light Sensor. See Automatic
Headlamp System 0158.
6. Infotainment 0164.
7. Dual Automatic Climate Control
System 0165.
8. USB Port (If Equipped). Auxiliary Input Jack. See
Infotainment 0164.
9. Wireless Charging 0112 (If
Equipped).
10. Heated and Ventilated Front
Seats 049 (If Equipped). 11.|Hazard Warning Flashers
0 159.
gTraction Control/Electronic
Stability Control 0209.
XPark Assist Switch. See
Assistance Systems for
Parking or Backing 0227 (If
Equipped).
12. Driver Mode Control 0212.
13.
ALane Keep Assist (LKA)
0 240 (If Equipped).
5Hill Descent Control (HDC)
0 211 (If Equipped).
14.
hAuto Stop Disable Button.
See Stop/Start System 0193
(If Equipped).
15. Power Outlets 0110.
16. Shift Switches. See Automatic
Transmission 0201.
17. ENGINE START/STOP Button. SeeStarting the Engine 0192.
18. Steering Wheel Controls 0107
(If Equipped). Driver Information Center (DIC)
Buttons. See
Driver Information
Center (DIC) (Base) 0137 or
Driver Information Center (DIC)
(Midlevel and Uplevel) 0139.
19. Horn 0107.
20. Steering Wheel Adjustment
0106.
21. Cruise Control 0214.
Adaptive Cruise Control 0216
(If Equipped).
Forward Collision Alert (FCA)
System 0231 (If Equipped).
Heated Steering Wheel 0107
(If Equipped).
22. Hood Release. See Hood
0 262.
23. Instrument Panel Illumination
Control 0160 (Out of View).
Head-Up Display (HUD) 0142
(If Equipped).
24. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0127.
25. Electric Parking Brake 0207.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Keys, Doors, and Windows 31
If the ignition mode will not change
with the other transmitter or in the
transmitter pocket, your vehicle
needs service. If the ignition does
change modes, the first transmitter
may be faulty. See your dealer who
can service the theft-deterrent
system and have a new RKE
transmitter programmed to the
vehicle.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional
transmitters, see“Programming
Transmitters to the Vehicle” under
Remote Keyless Entry (RKE)
System Operation 08.
Do not leave the transmitter or
device that disarms or deactivates
the theft-deterrent system in the
vehicle.Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply 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.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Keys, Doors, and Windows 37
Power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. SeeRetained
Accessory Power (RAP) 0196.
Using the window switch, press to
open or pull to close the window.
The windows may be temporarily
disabled if they are used repeatedly
within a short time.
Window Lockout
This feature stops the rear
passenger windows from working.
Press
2to engage the rear
window lockout feature. The
indicator light is on when engaged.
Press
2again to disengage.
Window Express Movement
All windows can be opened without
holding the window switch. Press
the switch down fully and quickly
release to express open the
window. If equipped, pull the window switch
up fully and quickly release to
express close the window.
Briefly press or pull the window
switch in the same direction to stop
that window’s express movement.
Window Automatic Reversal
System
The express-close feature will
reverse window movement if it
comes in contact with an object.
Extreme cold or ice could cause the
window to auto-reverse. The
window will operate normally after
the object or condition is removed.
Automatic Reversal System
Override
{Warning
If automatic reversal system
override is active, the window will
not reverse automatically. You or
others could be injured and the
window could be damaged.
Before using automatic reversal
(Continued)

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Seats and Restraints 55
climate controls, an indicator on the
climate control display appears
when this feature is on.
Press the button again to turn this
feature off. The light on the button
will turn off. On vehicles with rear
climate controls, this feature turns
on at the highest setting. With each
press of the button, the heated seat
changes to the next lower setting,
and then the off setting. Three lights
indicate the highest setting, and one
light indicates the lowest. If the
heated seats are on high, the level
may automatically be lowered after
approximately 30 minutes.
Third Row Seats
{Warning
Using the third row seating
position while the second row is
folded, or pushed forward in the
entry position, could cause injury
in a sudden stop or crash. Be
sure to return the seat to the(Continued)
Warning (Continued)
passenger seating position. Push
and pull on the seat to make sure
it is locked into place.
Folding the Seatback
Caution
Folding a rear seat with the seat
belts still fastened may cause
damage to the seat or the seat
belts. Always unbuckle the seat
belts and return them to their
normal stowed position before
folding a rear seat.
To fold the third row seatback: 1. Remove objects on the floor in front of or on the second row
seat, or in the seat tracks on
the floor.
2. If the second row seat is in the full rear position, adjust it
forward to allow the third row
seat to fold fully flat. 3. Remove anything on or under
the seat.
4. Pull the strap on the seatback.
5. Push the seatback forward tolay flat.
6. Repeat for the other seatback, if necessary.
Returning the Seat to the
Seating Position
To return the seatback to the
seating position:
1. From the rear of the vehicle, raise the seatback to the
upright position using the strap

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
Seats and Restraints 63
A pregnant woman should wear a
lap-shoulder belt, and the lap
portion should be worn as low as
possible, below the rounding,
throughout the pregnancy.
The best way to protect the fetus is
to protect the mother. When a seat
belt is worn properly, it is more likely
that the fetus will not be hurt in a
crash. For pregnant women, as for
anyone, the key to making seat
belts effective is wearing them
properly.
Seat Belt Extender
If the vehicle's seat belt will fasten
around you, you should use it.
But if a seat belt is not long enough,
your dealer will order you an
extender. When you go in to order it,
take the heaviest coat you will wear,
so the extender will be long enough
for you. To help avoid personal
injury, do not let someone else use
it, and use it only for the seat it is
made to fit. The extender has been
designed for adults. Never use it for
securing child restraints. For more
information on the proper use and fitof seat belt extenders see the
instruction sheet that comes with
the extender.
Safety System Check
Periodically check the seat belt
reminder, seat belts, buckles, latch
plates, retractors, shoulder belt
height adjusters (if equipped), and
seat belt anchorages to make sure
they are all in working order. Look
for any other loose or damaged seat
belt system parts that might keep a
seat belt system from performing
properly. See your dealer to have it
repaired. Torn, frayed, or twisted
seat belts may not protect you in a
crash. Torn or frayed seat belts can
rip apart under impact forces. If a
belt is torn or frayed, have it
replaced immediately. If a belt is
twisted, it may be possible to
untwist by reversing the latch plate
on the webbing. If the twist cannot
be corrected, ask your dealer to
fix it.
Make sure the seat belt reminder
light is working. See
Seat Belt
Reminders 0125. Keep seat belts clean and dry. See
Seat Belt Care
063.
Seat Belt Care
Keep belts clean and dry.
Seat belts should be properly cared
for and maintained.
Seat belt hardware should be kept
dry and free of dust or debris. As
necessary, exterior hard surfaces
and seat belt webbing may be lightly
cleaned with mild soap and water.
Ensure there is not excessive dust
or debris in the mechanism. If dust
or debris exists in the system please
see the dealer. Parts may need to
be replaced to ensure proper
functionality of the system.
{Warning
Do not bleach or dye seat belt
webbing. It may severely weaken
the webbing. In a crash, they
might not be able to provide
adequate protection. Clean and
(Continued)

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
64 Seats and Restraints
Warning (Continued)
rinse seat belt webbing only with
mild soap and lukewarm water.
Allow the webbing to dry.
Replacing Seat Belt
System Parts after a
Crash
{Warning
A crash can damage the seat belt
system in the vehicle. A damaged
seat belt system may not properly
protect the person using it,
resulting in serious injury or even
death in a crash. To help make
sure the seat belt systems are
working properly after a crash,
have them inspected and any
necessary replacements made as
soon as possible.After a minor crash, replacement of
seat belts may not be necessary.
But the seat belt assemblies that
were used during any crash may
have been stressed or damaged.
See your dealer to have the seat
belt assemblies inspected or
replaced.
New parts and repairs may be
necessary even if the seat belt
system was not being used at the
time of the crash.
Have the seat belt pretensioners
checked if the vehicle has been in a
crash, or if the airbag readiness light
stays on after you start the vehicle
or while you are driving. See
Airbag
Readiness Light 0126.
Airbag System
The vehicle has the following
airbags:
.
A frontal airbag for the driver
. A frontal airbag for the front
outboard passenger
. A knee airbag for the driver
. A front center airbag for the
driver and front outboard
passenger
. A seat-mounted side impact
airbag for the driver
. A seat-mounted side impact
airbag for the front outboard
passenger
. A roof-rail airbag for the driver
and for the second and third row
passengers seated directly
behind the driver
. A roof-rail airbag for the front
outboard passenger and the
second and third row
passengers seated directly
behind the front outboard
passenger

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13687875) - 2020 - CRC - 10/28/19
66 Seats and Restraints
Warning (Continued)
Occupants should not lean on or
sleep against the front center
armrest or console in vehicles
with a front center airbag.
Occupants should not lean on or
sleep against the door or side
windows in seating positions with
seat-mounted side impact airbags
and/or roof-rail airbags.
{Warning
Children who are up against,
or very close to, any airbag when
it inflates can be seriously injured
or killed. Always secure children
properly in the vehicle. To read
how, seeOlder Children 077 or
Infants and Young Children 079.
There is an airbag readiness light
on the instrument cluster, which
shows the airbag symbol.
The system checks the airbag
electrical system for malfunctions.
The light tells you if there is an
electrical problem. See Airbag
Readiness Light 0126.
Where Are the Airbags?
The driver frontal airbag is in the
center of the steering wheel.
The front outboard passenger
frontal airbag is in the passenger
side instrument panel.
The driver knee airbag is below the
steering column.