2019 GMC ACADIA check engine light

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146149) - 2019 - crc - 7/30/18
In Brief 7
1.Air Vents 0203.
2. Exterior Lamp Controls 0164.
Turn Signal Lever. See Turn
and Lane-Change Signals
0 168.
3. Instrument Cluster 0127.
4. Windshield Wiper/Washer
0120.
Rear Window Wiper/Washer
0 121.
5. Light Sensor. See Automatic
Headlamp System 0167.
6. Infotainment 0173.
7. Dual Automatic Climate Control
System 0198.
8. Heated and Ventilated Front
Seats 064 (If Equipped).
9. USB Port 0181 (If Equipped).
Auxiliary Input Jack. See
Auxiliary Devices 0187.
10. Hazard Warning Flashers
0168.
Traction Control/Electronic
Stability Control 0236. 11.
Power Outlets 0124.
12. Driver Mode Control 0239.
Assistance Systems for
Parking or Backing 0253 (If
Equipped).
Lane Keep Assist (LKA) 0266
(If Equipped).
13. Shift Lever. See Automatic
Transmission 0230.
14. ENGINE START/STOP Button. SeeStarting the Engine 0223.
15. Steering Wheel Controls 0119
(If Equipped).
Driver Information Center (DIC)
Buttons.
See Driver Information Center
(DIC) (Base and Midlevel)
0 145 orDriver Information
Center (DIC) (Uplevel) 0148.
16. Horn 0120.
17. Steering Wheel Adjustment
0119.
18. Cruise Control 0240.
Adaptive Cruise Control 0243
(If Equipped). Forward Collision Alert (FCA)
System
0257 (If Equipped).
Heated Steering Wheel 0120
(If Equipped).
19. Hood Release. See Hood
0 287.
20. Instrument Panel Illumination
Control 0169 (Out of View).
21. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0136.
22. Electric Parking Brake 0234.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146149) - 2019 - crc - 7/30/18
Seats and Restraints 85
Warning (Continued)
concealed damage that could
make it difficult to safely operate
the vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation.
Additional windshield breakage may
also occur from the front outboard
passenger airbag.
. Airbags are designed to inflate
only once. After an airbag
inflates, you will need some new
parts for the airbag system.
If you do not get them, the
airbag system will not be there
to help protect you in another
crash. A new system will include
airbag modules and possibly
other parts. The service manual
for the vehicle covers the need
to replace other parts. .
The vehicle has a crash sensing
and diagnostic module which
records information after a
crash.
See Vehicle Data Recording and
Privacy 0402 andEvent Data
Recorders 0402.
. Let only qualified technicians
work on the airbag systems.
Improper service can mean that
an airbag system will not work
properly. See your dealer for
service.
Passenger Sensing
System
The vehicle has a passenger
sensing system for the front
outboard passenger position. The
passenger airbag status indicator
will light on the overhead console
when the vehicle is started.
United States and Canada
Mexico
The words ON and OFF, or the
symbols for on and off, will be
visible during the system check.
When the system check is
complete, either the word ON or
OFF, or the symbol for on or off, will
be visible. See Passenger Airbag
Status Indicator 0135.
The passenger sensing system
turns off the front outboard
passenger frontal airbag under
certain conditions. No other airbag
is affected by the passenger
sensing system.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146149) - 2019 - crc - 7/30/18
118 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 119
Steering Wheel Controls . . . . . . 119
Heated Steering Wheel . . . . . . . 120
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Windshield Wiper/Washer . . . . 120
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 121
Compass . . . . . . . . . . . . . . . . . . . . . 122
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 123
Power Outlets . . . . . . . . . . . . . . . . 124
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 126
Instrument Cluster . . . . . . . . . . . . 127
Speedometer . . . . . . . . . . . . . . . . . 131
Odometer . . . . . . . . . . . . . . . . . . . . . 131
Trip Odometer . . . . . . . . . . . . . . . . 131
Tachometer . . . . . . . . . . . . . . . . . . . 131
Fuel Gauge . . . . . . . . . . . . . . . . . . . 132
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 133
Seat Belt Reminders . . . . . . . . . 134 Airbag Readiness Light . . . . . . . 135
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 135
Charging System Light . . . . . . . 136
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 136
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 138
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 139
Service Electric Parking Brake Light (Uplevel and Midlevel
Cluster Only) . . . . . . . . . . . . . . . . 139
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 139
Tow/Haul Mode Light . . . . . . . . . 140
Hill Descent Control Light . . . . 140
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 140
Vehicle Ahead Indicator . . . . . . 140
Pedestrian Ahead Indicator . . . 141
Traction Off Light . . . . . . . . . . . . . 141
StabiliTrak OFF Light . . . . . . . . . 141
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 141
Tire Pressure Light . . . . . . . . . . . 142
Engine Oil Pressure Light . . . . 142
Low Fuel Warning Light (Base Level) . . . . . . . . . . . . . . . . . . . . . . . 143 Low Fuel Warning Light
(Midlevel and Uplevel) . . . . . . 143
Security Light . . . . . . . . . . . . . . . . . 144
High-Beam On Light . . . . . . . . . . 144
Front Fog Lamp Light . . . . . . . . . 144
Lamps On Reminder . . . . . . . . . 144
Cruise Control Light . . . . . . . . . . 144
Door Ajar Light . . . . . . . . . . . . . . . 145
Information Displays
Driver Information Center (DIC) (Base and Midlevel) . . . . . . . . . 145
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . 148
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 151
Engine Power Messages . . . . . 151
Vehicle Speed Messages . . . . . 151
Vehicle Personalization
Vehicle Personalization . . . . . . . 152
Universal Remote System
Universal Remote System . . . . 160
Universal Remote SystemProgramming . . . . . . . . . . . . . . . 160
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 163

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146149) - 2019 - crc - 7/30/18
126 Instruments and Controls
indicator light turns off. To reset the
circuit, unplug the item and plug it
back in or turn the Retained
Accessory Power (RAP) off and
then back on. SeeRetained
Accessory Power (RAP) 0226. The
power restarts when equipment
using 150 watts or less is plugged
into the outlet and a system fault is
not detected.
The power outlet is not designed for
and may not work properly, if the
following are plugged in:
. Equipment with high initial peak
wattage, such as
compressor-driven refrigerators
and electric power tools
. Other equipment requiring an
extremely stable power supply,
such as
microcomputer-controlled
electric blankets and touch
sensor lamps
. Medical equipmentWarning 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-12146149) - 2019 - crc - 7/30/18
Instruments and Controls 131
desired item is highlighted.
A checkmark will be displayed next
to the selected item.
Display Themes (Uplevel) :There
are two instrument cluster display
configurations to choose from: Sport
and Touring.
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.
See Driver Information Center (DIC)
(Base and Midlevel) 0145 orDriver
Information Center (DIC) (Uplevel)
0 148.
Speed Warning : The Speed
Warning display allows the driver to
set a speed that they do not want to
exceed. To set the Speed Warning
press
pwhen Speed Warning is
displayed.
For the Base and Midlevel Cluster,
press
worxto adjust the value.
Press
Vto set the speed. For the Uplevel Cluster, scroll to set
speed and press
p. Pressworx
to adjust the value. PressVto 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.
Software Information : Displays
open source software information.
Speedometer
The speedometer shows the
vehicle's speed in either kilometers
per hour (km/h) or miles per
hour (mph).
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
Trip Odometer
The trip odometer shows how far
the vehicle has been driven since
the trip odometer was last reset.
The trip odometer is accessed and
reset through the Driver Information
Center (DIC).
See Driver Information Center (DIC)
(Base and Midlevel) 0145 orDriver
Information Center (DIC) (Uplevel)
0 148.
Tachometer
The tachometer displays the engine
speed in revolutions per
minute (rpm).
For vehicles with the Stop/Start
system, when the ignition is on, the
tachometer indicates the vehicle
status. When pointing to AUTO
STOP, the engine is off but the
vehicle is on and can move. The
engine could auto start at any time.
When the indicator points to OFF,
the vehicle is off.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146149) - 2019 - crc - 7/30/18
136 Instruments and Controls
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. SeeAirbag Readiness
(Continued)
Warning (Continued)
Light0135 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 0221.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146149) - 2019 - crc - 7/30/18
Instruments and Controls 137
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
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(Continued)
Caution (Continued)
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
0286.
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.
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
0 269. 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

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146149) - 2019 - crc - 7/30/18
142 Instruments and Controls
This light comes on briefly when the
engine is started.
If the light 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 is on and not flashing, the
TCS and potentially the StabiliTrak/
ESC system have been disabled.
A Driver Information Center (DIC)
message may display. Check the
DIC messages to determine which
feature(s) is no longer functioning
and whether the vehicle requires
service.
If the light is on and flashing, the
TCS and/or the StabiliTrak/ESC
system is actively working.
SeeTraction Control/Electronic
Stability Control 0236.Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. Stop as soon as possible,
and inflate the tires to the pressure
value shown on the Tire and
Loading Information label. See Tire
Pressure 0326. When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See
Tire Pressure Monitor
Operation 0329.
Engine Oil Pressure Light
Oil pressure can vary with engine
speed, outside temperature, and oil
viscosity.
On some models, the oil pump will
vary engine oil pressure according
to engine needs. Oil pressure may
change quickly as the engine speed
or load varies. This is normal. If the
oil pressure warning light or Driver
Information Center (DIC) message
indicates oil pressure outside the
normal operating range, check the
vehicle's oil as soon as possible.