
GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
2017 - crc - 3/30/16
318 OnStar
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . . 318
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . . 319
Security . . . . . . . . . . . . . . . . . . . . . . 319
Navigation . . . . . . . . . . . . . . . . . . . . 320
Connections . . . . . . . . . . . . . . . . . . 320
Diagnostics . . . . . . . . . . . . . . . . . . . 322
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . . 323
OnStar Overview
=Voice Command Button
QBlue OnStar Button
>Red Emergency Button
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to an OnStar
Advisor for Emergency, Security,
Navigation, Connections, and
Diagnostics Services. OnStar
services may require a paid
subscription and data plan. OnStar
requires the vehicle battery and
electrical system, cellular service,
and GPS satellite signals to be
available and operating. OnStar acts
as a link to existing emergency
service providers. OnStar may
collect information about you and
your vehicle, including location
information. See OnStar User Terms, Privacy Statement, and
Software Terms for more details
including system limitations at
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
The OnStar system status light is
next to the OnStar buttons. If the
status light is:
.
Solid Green: System is ready.
. Flashing Green: On a call.
. Red: Indicates a problem.
. Off: System is active. Press
Q
twice to speak with an OnStar
Advisor.
Press
Qor call 1-888-4ONSTAR
(1-888-466-7827) to speak to an
Advisor.
Press
=to:
. Make a call, end a call,
or answer an incoming call.
. Give OnStar Hands-Free Calling
voice commands.
. Give OnStar Turn-by-Turn
Navigation voice commands.

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OnStar 321
from each other and use a
combination of letters, numbers,
and symbols to increase the
security.
. Change the default name of the
SSID (Service Set Identifier).
This is your network’s name that
is visible to other wireless
devices. Choose a unique name
and avoid family names or
vehicle descriptions.
OnStar Wi-Fi
®Hotspot
(If Equipped)
The vehicle may have a built-in
Wi-Fi hotspot that provides access
to the Internet and web content at
4G LTE speed. Up to seven mobile
devices can be connected. A data
plan is required. Use the in-vehicle
controls only when it is safe to
do so.
1. To retrieve Wi-Fi hotspot information, press
=, wait for
the prompt, then say “Wi-Fi
settings.” On some vehicles,
touch Wi-Fi Settings on the
screen. 2. The Wi-Fi settings will display
the Wi-Fi hotspot name (SSID),
password, and on some
vehicles, the connection type
(no Internet connection, 3G,
4G, 4G LTE), and signal quality
(poor, good, excellent).
3. To change the SSID or password, press
Qor call
1-888-4ONSTAR to connect
with an Advisor.
After initial set-up, your vehicle’s
Wi-Fi hotspot will connect
automatically to your mobile
devices. Manage data usage by
turning Wi-Fi on or off on your
mobile device, using the
RemoteLink mobile app, or by
contacting an OnStar Advisor.
OnStar RemoteLink
®Mobile App
(If Equipped)
Download the OnStar RemoteLink
mobile app to select Apple
®iOS,
Android™, BlackBerry®,
or Windows®mobile devices.
OnStar Subscribers can access the
following services from a mobile
device: .
Remotely start/stop the vehicle,
if factory-equipped.
. Lock/unlock doors, if equipped
with automatic locks.
. Activate the horn and lamps.
. Check the vehicle’s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
. Send directions to the vehicle.
. Locate the vehicle on a map
(U.S. market only).
. Turn the vehicle's Wi-Fi hotspot
on/off, manage settings, and
monitor data consumption,
if equipped.
For OnStar RemoteLink information
and compatibility, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Remote Services
Contact an OnStar Advisor to
unlock the doors or sound the horn
and flash the lamps.

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OnStar 323
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase.
Press
Qto set up an account.
. With the OnStar Basic Plan,
every 60 days.
. After change in ownership and
at 90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can cancel or change account
information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately to
terminate your OnStar services if
the vehicle is disposed of, sold,
transferred, or if the lease ends.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance,
Advanced Vehicle Diagnostics,
Remote Services, Roadside
Assistance, Turn-by-Turn
Navigation, and Hands-Free Calling
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar User Terms,
Privacy Statement, and Software
Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada). .
Call TTY 1-877-248-2080.
. Press
Qto speak with an
Advisor.
OnStar services cannot work unless
the vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area. The wireless service
provider must also have coverage,
network capacity, reception, and
technology compatible with OnStar
services. Service involving location
information about the vehicle cannot
work unless GPS signals are
available, unobstructed, and
compatible with the OnStar
hardware. OnStar services may not
work if the OnStar equipment is not
properly installed or it has not been
properly maintained. If equipment or
software is added, connected,
or modified, OnStar services may
not work. Other problems beyond
the control of OnStar —such as
hills, tall buildings, tunnels, weather,
electrical system design and
architecture of the vehicle, damage

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324 OnStar
to the vehicle in a crash, or wireless
phone network congestion or
jamming—may prevent service.
See Radio Frequency
Statement 0314.
Services for People with
Disabilities
Advisors provide services to help
Subscribers with physical disabilities
and medical conditions.
Press
Qto help:
. Locate a gas station with an
attendant to pump gas.
. Find a hotel, restaurant, etc.,
that meets accessibility needs.
. Provide directions to the closest
hospital or pharmacy in urgent
situations.
TTY Users
OnStar has the ability to
communicate to deaf,
hard-of-hearing, or speech-impaired
customers while in the vehicle. The
available dealer-installed TTY
system can provide in-vehicle access to all OnStar services,
except Virtual Advisor and OnStar
Turn-by-Turn Navigation.
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some
OnStar services. The PIN will need
to be changed the first time when
speaking with an Advisor. To
change the OnStar PIN, contact an
OnStar Advisor by pressing
Qor
calling 1-888-4ONSTAR.
Warranty
OnStar equipment may be
warranted as part of the vehicle
warranty.
Languages
The vehicle can be programmed to
respond in multiple languages.
Press
Qand ask for an Advisor.
Advisors are available in English,
Spanish, and French. Available
languages may vary by country.
Potential Issues
OnStar cannot perform Remote
Door Unlock or Stolen Vehicle
Assistance after the vehicle has
been off continuously for 10 days
without an ignition cycle. If the
vehicle has not been started for
five days, OnStar can contact
Roadside Assistance or a locksmith
to help gain access to the vehicle.
Global Positioning
System (GPS)
. Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels and
underpasses; or in an area with
very dense trees. If GPS signals
are not available, the OnStar
system should still operate to
call OnStar. However, OnStar
could have difficulty identifying
the exact location.
. In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.

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OnStar 325
A temporary loss of GPS can cause
loss of the ability to send a
Turn-by-Turn Navigation route. The
Advisor may give a verbal route or
may ask for a call back after the
vehicle is driven into an open area.
Cellular and GPS Antennas
Cellular reception is required for
OnStar to send remote signals to
the vehicle. Do not place items over
or near the antenna to prevent
blocking cellular and GPS signal
reception.
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Press
Qto try the
call again or try again after driving a
few miles into another cellular area.
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features to function properly. These systems
may not operate if the battery is
discharged or disconnected.
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See
Add-On Electrical
Equipment 0207. Added electrical
equipment may interfere with the
operation of the OnStar system and
cause it to not operate.
Vehicle Software Updates
OnStar or GM may remotely deliver
software updates or changes to the
vehicle without further notice or
consent. These updates or changes
may enhance or maintain safety,
security, or the operation of the
vehicle or the vehicle systems.
Software updates or changes may
affect or erase data or settings that
are stored in the vehicle, such as
OnStar Hands-Free Calling name
tags, saved navigation destinations,
or pre-set radio stations. Neither
OnStar nor GM is responsible for
any affected or erased data or settings. These updates or changes
may also collect personal
information. Such collection is
described in the OnStar privacy
statement or separately disclosed at
the time of installation. These
updates or changes may also cause
a system to automatically
communicate with GM servers to
collect information about vehicle
system status, identify whether
updates or changes are available,
or deliver updates or changes. An
active OnStar agreement constitutes
consent to these software updates
or changes and agreement that
either OnStar or GM may remotely
deliver them to the vehicle.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada). We
recommend that you review it. If you
have any questions, call
1-888-4ONSTAR (1-888-466-7827)
or press
Qto speak with an
Advisor. Users of wireless
communications are cautioned that

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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336 Index
Safety Defects ReportingCanadian Government . . . . . . . . 315
General Motors . . . . . . . . . . . . . . . 315
U.S. Government . . . . . . . . . . . . . 315
Safety Locks . . . . . . . . . . . . . . . . . . . . . 30
Safety System Check . . . . . . . . . . . . 60
Scheduling Appointments . . . . . . . 310
Seats Head Restraints . . . . . . . . . . . . . . . . 44
Lumbar Adjustment, Front . . . . . . 45
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 47
Power Adjustment, Front . . . . . . . 45
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Reclining Seatbacks . . . . . . . . . . . . 46
Third Row Seat . . . . . . . . . . . . . . . . . 51
Securing Child Restraints . . . . 87, 89
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Messages . . . . . . . . . . . . . . . . . . . . 129
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 319
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 34
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 34
Service Accessories andModifications . . . . . . . . . . . . . . . . 209
Doing Your Own Work . . . . . . . . 210
Engine Soon Light . . . . . . . . . . . . 109
Maintenance Records . . . . . . . . 300 Service (cont'd)
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 288
Parts Identification Label . . . . . 301
Publications Ordering
Information . . . . . . . . . . . . . . . . . . 313
Scheduling Appointments . . . . . 310
Vehicle Messages . . . . . . . . . . . . 130
Services
Special Application . . . . . . . . . . . 295
Servicing the Airbag . . . . . . . . . . . . . 72
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 228
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 176
Out of Park . . . . . . . . . . . . . . . . . . . 177
Side Blind Zone Alert (SBZA) . . . 193
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 145
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 270
Special Application Services . . . . 295
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . . 302
Speedometer . . . . . . . . . . . . . . . . . . . 105
StabiliTrak Indicator Light . . . . . . . . . . . . . . . . .113 Start Assist, Hill . . . . . . . . . . . . . . . . . 184
Start Vehicle, Remote . . . . . . . . . . . 27
Starter Switch Check . . . . . . . . . . . 228
Starting the Engine . . . . . . . . . . . . . 173
Steering . . . . . . . . . . . . . . . . . . . . . . . . 162
Fluid, Power . . . . . . . . . . . . . . . . . . 224
Wheel Adjustment . . . . . . . . . . . . . . 98
Wheel Controls . . . . . . . . . . . . . . . . . 98
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cargo Cover . . . . . . . . . . . . . . . . . . . . 94
Cargo Management System . . . . 94
Center Console . . . . . . . . . . . . . . . . . 93
Convenience Net . . . . . . . . . . . . . . . 95
Glove Box . . . . . . . . . . . . . . . . . . . . . . 92
Instrument Panel . . . . . . . . . . . . . . . 92
Roof Rack System . . . . . . . . . . . . . . 95
Storage Compartments . . . . . . . . . . 92
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 167
Summer Tires . . . . . . . . . . . . . . . . . . 243
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 40
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 192
Infotainment . . . . . . . . . . . . . 150, 317
Roof Rack . . . . . . . . . . . . . . . . . . . . . . 95

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Index 337
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 105
Text Telephone (TTY) Users . . . . 307
Theft-Deterrent Systems . . . . . . . . . 35Immobilizer . . . . . . . . . . . . . . . . . . . . . 35
Third-Row Seats . . . . . . . . . . . . . . . . . 51
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 All-Season . . . . . . . . . . . . . . . . . . . . 243
Buying New Tires . . . . . . . . . . . . . 256
Chains . . . . . . . . . . . . . . . . . . . . . . . . 261
Changing . . . . . . . . . . . . . . . . . . . . . 262
Compact Spare . . . . . . . . . . . . . . . 270
Designations . . . . . . . . . . . . . . . . . 246
Different Size . . . . . . . . . . . . . . . . . 258
If a Tire Goes Flat . . . . . . . . . . . . 261
Inspection . . . . . . . . . . . . . . . . . . . . 254
Messages . . . . . . . . . . . . . . . . . . . . 130
Pressure Light . . . . . . . . . . . . . . . . .114
Pressure Monitor Operation . . 251
Pressure Monitor System . . . . . 250
Rotation . . . . . . . . . . . . . . . . . . . . . . 255
Sidewall Labeling . . . . . . . . . . . . . 244
Terminology and Definitions . . 247
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 258
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 260 Tires (cont'd)
Wheel Replacement . . . . . . . . . . 260
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 256
Winter . . . . . . . . . . . . . . . . . . . . . . . . 243
Tow/Haul Mode . . . . . . . . . . . . . . . . . 181
Tow/Haul Mode Light . . . . . . . . . . . 112
Towing Driving Characteristics . . . . . . . . 200
Equipment . . . . . . . . . . . . . . . . . . . . 205
General Information . . . . . . . . . . 200
Recreational Vehicle . . . . . . . . . . 275
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 203
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 274
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 184
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 203
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 179
Fluid, Automatic . . . . . . . . . . . . . . 216
Messages . . . . . . . . . . . . . . . . . . . . 131
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 310
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 145
U
Uniform Tire Quality Grading . . . 258
Universal Remote System . . . . . . 139Operation . . . . . . . . . . . . . . . . . . . . . 141
Programming . . . . . . . . . . . . . . . . . 139
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 34
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 162
Identification Number (VIN) . . . 301
Load Limits . . . . . . . . . . . . . . . . . . . 167
Messages . . . . . . . . . . . . . . . . . . . . 123
Personalization . . . . . . . . . . . . . . . 132
Reminder Messages . . . . . . . . . . 132
Remote Start . . . . . . . . . . . . . . . . . . . 27
Security . . . . . . . . . . . . . . . . . . . . . . . . 34
Speed Messages . . . . . . . . . . . . . 132
Towing . . . . . . . . . . . . . . . . . . . . . . . . 274
Vehicle Ahead Indicator . . . . . . . . 113
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 249
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 316
Ventilation, Air . . . . . . . . . . . . . . . . . . 158
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 40