
GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
222 Driving and Operating
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. SeeRemote Keyless Entry
(RKE) System Operation 030.
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) 0226.
If the vehicle is not in P (Park), 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 system 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, shift to P (Park), and turn the
ignition off.
4. Set the parking brake. See Electric Parking Brake 0233.{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.
If the vehicle cannot be pulled over,
and must be shut off while driving,
press and hold ENGINE START/
STOP for longer than two seconds,
or press twice in five seconds.
ACC/ACCESSORY (Amber
Indicator Light) : This mode allows
some electrical accessories to be
used when the engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to off after
five minutes to prevent battery
rundown.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Vehicle Care 281
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, 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.Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 090.
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner ’s manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see Service
Publications Ordering Information
0 393.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 089.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
OnStar 403
3. Say the entire number withoutpausing, including a “1”and the
area code. System responds:
“OK, calling.”
Calling 911 Emergency
1. Press=. System responds:
“OnStar ready.”
2. Say “Call.”System responds:
“Call. Please say the name or
number to call.”
3. Say “911”without pausing.
System responds: “911.”
4. Say “Call.”System responds:
“OK, dialing 911.”
Retrieve My Number
1. Press=. System responds:
“OnStar ready.”
2. Say “My number.” System
responds: “Your OnStar
Hands-Free Calling number is,”
then says the number.
End a Call
Press=. System responds: “Call
ended.”
Verify Minutes and Expiration
Press=and say “Minutes” then
“Verify” to check how many minutes
remain and their expiration date.
Diagnostics
By monitoring and reporting on the
vehicle’s key systems, OnStar
Advanced Diagnostics provides a
way to keep up on maintenance.
Capabilities vary by model. See
www.onstar.com for details and
system limitations. Message and
data rates may apply. Advanced
Diagnostics requires an active
OnStar paid service plan, e-mail
address on file, and enrollment in
Advanced Diagnostics.
Includes:
. Diagnostic Alerts: Set
preferences to receive real-time
e-mails, texts, or monthly reports
of the vehicle’s health. Or press
Qto have an Advisor initiate a
remote diagnostic report. .
Proactive Alerts: Receive a
real-time e-mail or text message
regarding potential issues with
key vehicle components, such
as the battery, fuel system,
or starter system. Alerts for
potential issues appear on the
infotainment display. Proactive
Alerts are designed to help
predict specific types of issues
based on information collected
from the vehicle. Other factors
may affect vehicle performance.
Not all issues will deliver alerts.
In some cases, a dealer service
check may be required to
confirm the accuracy of the
alerts.
. Dealer Maintenance Notification:
Have the vehicle notify your
preferred dealer when it is time
for maintenance. Your dealer will
then contact you to set up an
appointment.
To begin, pressQto speak to an
Advisor, or see www.onstar.com.

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Index 415
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . 72
HVAC . . . . . . . . . . . . . . . . . . . . . . 198, 201
I
Ignition Positions . . . . . . . . . . . . . . . 221
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 48
Indicator Pedestrian Ahead . . . . . . . . . . . . 141
Vehicle Ahead . . . . . . . . . . . . . . . . 141
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 93
Infotainment . . . . . . . . . . . . . . . . . . . . 173
Infotainment System . . . . . . . . . . . . 397
Instrument Cluster . . . . . . . . . . . . . . 127
Interior Rearview Mirrors . . . . . . . . . 51
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 351
K
Keyless EntryRemote (RKE) System . . . . . . . . . 30
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
L
Labeling, Tire Sidewall . . . . . . . . . . 316
Lamps
Courtesy . . . . . . . . . . . . . . . . . . . . . . 169
Daytime Running (DRL) . . . . . . 166
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 169
Exterior Controls . . . . . . . . . . . . . . 164
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 166
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 172
License Plate . . . . . . . . . . . . . . . . . 304
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 136
On Reminder . . . . . . . . . . . . . . . . . 145
Reading . . . . . . . . . . . . . . . . . . . . . . 170
Lane Change Alert (LCA) . . . . . . . 263
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 264
Lane Keep Assist (LKA) . . . . . . . . 265
Lane Keep Assist Light . . . . . . . . . 140
Lap-Shoulder Belt . . . . . . . . . . . . . . . 73
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 105
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 98
LED Lighting . . . . . . . . . . . . . . . . . . . . 304 Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 170
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Illumination Control . . . . . . . . . . . 169
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Lights
Airbag Readiness . . . . . . . . . . . . . 135
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 140
Brake System Warning . . . . . . . 138
Charging System . . . . . . . . . . . . . 136
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 136
Cruise Control . . . . . . . . . . . . . . . . 145
Door Ajar . . . . . . . . . . . . . . . . . . . . . 145
Electric Parking Brake . . . . . . . . 139
Engine Oil Pressure . . . . . . . . . . 143
Flash-to-Pass . . . . . . . . . . . . . . . . . 166
Front Fog Lamp . . . . . . . . . . . . . . 144
High-Beam On . . . . . . . . . . . . . . . . 144
High/Low Beam Changer . . . . . 166
Hill Descent Control . . . . . . . . . . 140
Lane Keep Assist . . . . . . . . . . . . . 140
Low Fuel Warning . . . . . . . 143, 144
Seat Belt Reminders . . . . . . . . . . 134
Security . . . . . . . . . . . . . . . . . . . . . . 144

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
Index 417
OperationFog Lamps . . . . . . . . . . . . . . . . . . . 168
Infotainment System . . . . . . . . . . 176
Ordering Service Publications . . . . . . . . . . 393
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 124
Overheating, Engine . . . . . . . . . . . . 295
Overview . . . . . . . . . . . . . . . . . . . . . . . 175
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 226
Shifting Out of . . . . . . . . . . . . . . . . 227
Parking Brake and P (Park)Mechanism Check . . . . . . . . . . 300
Extended . . . . . . . . . . . . . . . . . . . . . 228
Over Things That Burn . . . . . . . 228
Parking Assist . . . . . . . . . . . . . . . . . . 252
Parking or Backing Assistance Systems . . . . . . . . . . 252
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 135
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Passenger Sensing System . . . . . 85
Pedestrian Ahead Indicator . . . . . 141 Perchlorate Materials
Requirements, California . . . . . . 281
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 152
Phone Apple CarPlay andAndroid Auto . . . . . . . . . . . . . . . . 193
Bluetooth . . . . . . . . . . . . . . . . 188, 189
Hands-Free . . . . . . . . . . . . . . . . . . . 194
Port USB . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 40
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Outlets . . . . . . . . . . . . . . . . . . . . . . . 124
Protection, Battery . . . . . . . . . . . . 171
Retained Accessory (RAP) . . . 226
Seat Adjustment . . . . . . . . . . . . . . . . 60
Windows . . . . . . . . . . . . . . . . . . . . . . . 51
Pregnancy, Using Seat Belts . . . . 76
Privacy Vehicle Data Recording . . . . . . . 396
Program Courtesy Transportation . . . . . . 390
Proposition
65 Warning,
California . . . . . . . . . . . .280, 299, 351, Back Cover
R
Radio Frequency Statement . . . . 394
Radio Reception . . . . . . . . . . . . . . . . 180
RadiosAM-FM Radio . . . . . . . . . . . . . . . . . 178
Satellite . . . . . . . . . . . . . . . . . . . . . . . 179
Reading Lamps . . . . . . . . . . . . . . . . . 170
Rear Climate Control System . . . 201
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 66 Heated . . . . . . . . . . . . . . . . . . . . . . . . . 69
Rear Storage . . . . . . . . . . . . . . . . . . . 112
Rear Vision Camera (RVC) . . . . . 252
Rear Window Washer/Wiper . . . . 121
Rearview Mirrors . . . . . . . . . . . . . . . . 51 Automatic Dimming . . . . . . . . . . . . . 51
Reclining Seatbacks . . . . . . . . . . . . . 60
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 377
Records
Maintenance . . . . . . . . . . . . . . . . . . 379
Recreational Vehicle Towing . . . . 354
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . 388
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . . . 30
Remote Vehicle Start . . . . . . . . . . . . 36
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 91