Page 397 of 423

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
396 Customer Information
Vehicle Data
Recording and
Privacy
The vehicle has a number of
computers that record information
about the vehicle’s performance and
how it is driven. For example, the
vehicle uses computer modules to
monitor and control engine and
transmission performance, to
monitor the conditions for airbag
deployment and deploy them in a
crash, and, if equipped, to provide
antilock braking to help the driver
control the vehicle. These modules
may store data to help the dealer
technician service the vehicle.
Some modules may also store data
about how the vehicle is operated,
such as rate of fuel consumption or
average speed. These modules may
retain personal preferences, such as
radio presets, seat positions, and
temperature settings.
Event Data Recorders
This vehicle is equipped with an
event data recorder (EDR). The
main purpose of an EDR is to
record, in certain crash or near
crash-like situations, such as an air
bag deployment or hitting a road
obstacle, data that will assist in
understanding how a vehicle’s
systems performed. The EDR is
designed to record data related to
vehicle dynamics and safety
systems for a short period of time,
typically 30 seconds or less. The
EDR in this vehicle is designed to
record such data as:
.How various systems in your
vehicle were operating;
. Whether or not the driver and
passenger safety belts were
buckled/fastened;
. How far (if at all) the driver was
depressing the accelerator and/
or brake pedal; and,
. How fast the vehicle was
traveling. These data can help provide a
better understanding of the
circumstances in which crashes and
injuries occur.
Note
EDR data are recorded by your
vehicle only if a non-trivial crash
situation occurs; no data are
recorded by the EDR under normal
driving conditions and no personal
data (e.g., name, gender, age, and
crash location) are recorded.
However, other parties, such as law
enforcement, could combine the
EDR data with the type of
personally identifying data routinely
acquired during a crash
investigation.
To read data recorded by an EDR,
special equipment is required, and
access to the vehicle or the EDR is
needed. In addition to the vehicle
manufacturer, other parties, such as
law enforcement, that have the
special equipment, can read the
information if they have access to
the vehicle or the EDR.
Page 406 of 423

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
OnStar 405
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
to the vehicle in a crash, or wireless
phone network congestion or
jamming —may prevent service.
See Radio Frequency Statement
0 394.
Services for People with
Disabilities
Advisors provide services to help
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
10 days, OnStar can contact
Roadside Assistance or a locksmith
to help gain access to the vehicle.
Page 411 of 423

GMC Acadia/Acadia Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349114) - 2018 - crc - 9/21/17
410 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 281
Accessory Power . . . . . . . . . . . . . . . 226
Adaptive Cruise Control . . . . . . . . 242
Add-On Electrical Equipment . . . 278
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 404
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 374
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 60
Agreements Trademarks and License . . . . . 196
Air Cleaner/Filter, Engine . . . . . . . 290
Air Conditioning . . . . . . . . . . . 198, 201
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 204
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 203
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 90
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 83
Passenger Sensing System . . . . 85
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 83
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 84 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 82
Where Are the Airbags? . . . . . . . . 80
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 90
Passenger Status Indicator . . . 135
Readiness Light . . . . . . . . . . . . . . 135
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 89
System Check . . . . . . . . . . . . . . . . . . 78
Alarm Vehicle Security . . . . . . . . . . . . . . . . 47
Alert Lane Change . . . . . . . . . . . . . . . . . 263
Side Blind Zone (SBZA) . . . . . . 262
All-Season Tires . . . . . . . . . . . . . . . . 315
All-Wheel Drive . . . . . . . . . . . . 232, 300
AM-FM Radio . . . . . . . . . . . . . . . . . . . 178
Antenna
Multi-band . . . . . . . . . . . . . . . . . . . . 181
Antilock Brake System (ABS) . . . 233
Warning Light . . . . . . . . . . . . . . . . . 140
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 358
Interior . . . . . . . . . . . . . . . . . . . . . . . . 362