2017 GMC SIERRA 1500 ECU

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
OnStar 471
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . . 471
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . . 472
Security . . . . . . . . . . . . . . . . . . . . . . 472
Navigation . . . . . . . . . . . . . . . . . . . . 472
Connections . . . . . . . . . . . . . . . . . . 473
Diagnostics . . . . . . . . . . . . . . . . . . . 475
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . . 476
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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
472 OnStar
.Obtain and customize the Wi-Fi®
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an
Advisor to:
. Verify account information or
update contact information.
. Get driving directions.
. Receive a Diagnostic check of
the vehicle's key operating
systems.
. Receive Roadside Assistance.
. Manage Wi-Fi Settings,
if equipped.
Press
>to get a priority connection
to an OnStar Advisor available
24/7 to:
. Get help for an emergency.
. Be a Good Samaritan or
respond to an AMBER Alert.
. Get assistance in severe
weather or other crisis situations
and find evacuation routes.
OnStar Services
Emergency
Emergency Services require an
active, OnStar service plan
(excludes Basic Plan). With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor
who is immediately connected in to
the vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Assistance, Advisors
can locate a nearby service provider
to help with a flat tire, a battery
jump, or an empty gas tank.
Security
If equipped, OnStar provides these
services:
. With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block™,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown
®,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
Navigation
OnStar navigation requires a
specific OnStar service plan.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
OnStar 473
PressQto receive Turn-by-Turn
directions or have them sent to the
vehicle’s navigation screen,
if equipped.
Turn-by-Turn Navigation
1. PressQto connect to an
Advisor.
2. Request directions to be downloaded to the vehicle.
3. Follow the voice-guided commands.
Using Voice Commands
During a Planned Route
Cancel Route
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Cancel route.” System
responds: “Do you want to
cancel directions?”
3. Say “Yes.”System responds:
“OK, request completed, thank
you, goodbye.” Route Preview
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Route preview.” System
responds with the next three
maneuvers.
Repeat
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Repeat.” System
responds with the last direction
given, then responds with
“OnStar ready,” then a tone.
Get My Destination
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Get my destination.”
System responds with the
address and distance to the
destination, then responds with
“OnStar ready,” then a tone.
Send Destination to Vehicle
Subscribers can have directions
sent to the vehicle’ s navigation
screen, if equipped. Press
Q, then ask the Advisor to
download directions to the vehicle’s
navigation system, if equipped. After
the call ends, the navigation screen
will provide prompts to begin driving
directions. Routes that are sent to
the navigation screen can only be
canceled through the navigation
system.
See www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Connections
The following OnStar services help
with staying connected.
For coverage maps, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Ensuring Security
. Change the default passwords
for the Wi-Fi hotspot and
RemoteLink mobile application.
Make these passwords different
from each other and use a
combination of letters, numbers,
and symbols to increase the
security.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
478 OnStar
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 0334. 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 Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
480 OnStar
Christian Spieler, Cosmin Truta,
Antoine Verheijen, Paul von Behren,
Rich Wales, Mike White.
This software is provided“as is,”
without warranty of any kind,
express or implied. In no event shall
Info-ZIP or its contributors be held
liable for any direct, indirect,
incidental, special or consequential
damages arising out of the use of or
inability to use this software.
Permission is granted to anyone to
use this software for any purpose,
including commercial applications,
and to alter it and redistribute it
freely, subject to the following
restrictions:
1. Redistributions of source code must retain the above copyright
notice, definition, disclaimer,
and this list of conditions.
2. Redistributions in binary form (compiled executables) must
reproduce the above copyright
notice, definition, disclaimer,
and this list of conditions in
documentation and/or other
materials provided with the
distribution. The sole exception to this condition is redistribution
of a standard UnZipSFX binary
(including SFXWiz) as part of a
self-extracting archive; that is
permitted without inclusion of
this license, as long as the
normal SFX banner has not
been removed from the binary
or disabled.
3. Altered versions–including, but not limited to, ports to new
operating systems, existing
ports with new graphical
interfaces, and dynamic,
shared, or static library
versions–must be plainly
marked as such and must not
be misrepresented as being
the original source. Such
altered versions also must not
be misrepresented as being
Info-ZIP releases–including,
but not limited to, labeling of
the altered versions with the
names “Info-ZIP” (or any
variation thereof, including, but
not limited to, different
capitalizations), “Pocket
UnZip,” “WiZ” or“MacZip”
without the explicit permission of Info-ZIP. Such altered
versions are further prohibited
from misrepresentative use of
the Zip-Bugs or Info-ZIP e-mail
addresses or of the
Info-ZIP URL(s).
4. Info-ZIP retains the right to use the names “Info-ZIP,” “Zip,”
“UnZip,” “UnZipSFX,” “WiZ,”
“Pocket UnZip,” “Pocket Zip,”
and “MacZip” for its own
source and binary releases.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
Index 481
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 341
Accessory Power . . . . . . . . . . . . . . . 262
Active Fuel Management
®. . . . . . 266
Add-On Electrical Equipment . . . 334
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . 334
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 476
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 444
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . 258
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 52
Agreements Trademarks and License . . . . . 225
Air Cleaner/Filter, Engine . . . . . . . 355
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 235
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 234
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 80
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 71
Passenger Sensing System . . . . 75 Airbag System (cont'd)
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 71
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 71
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 69
Where Are the Airbags? . . . . . . . . 68
Airbags
Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 79
Light On-Off . . . . . . . . . . . . . . . . . . 130
On-Off Light . . . . . . . . . . . . . . . . . . 130
On-Off Switch . . . . . . . . . . . . . . . . . . 73
Passenger Status Indicator . . . 132
Readiness Light . . . . . . . . . . . . . . 130
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 79
System Check . . . . . . . . . . . . . . . . . . 66
Alarm Vehicle Security . . . . . . . . . . . . . . . . 38
All-Season Tires . . . . . . . . . . . . . . . . 384
All-Terrain Tires . . . . . . . . . . . . . . . . . 385
AM-FM Radio . . . . . . . . . . . . . . 184, 186
Antenna Fixed Mast . . . . . . . . . . . . . . . . . . . 190
Multi-band . . . . . . . . . . . . . . . . . . . . 190
Antilock Brake System (ABS) . . . 281

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
Index 483
California (cont'd)Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 341
California
Proposition
65 Warning . . . . . . . . . .340, 366, 418
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 453
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 266
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 36
Winter Driving . . . . . . . . . . . . . . . . 248
Cargo
Tie-Downs . . . . . . . . . . . . . . . . . . . . .110
Cargo Lamp . . . . . . . . . . . . . . . . . . . . 172
Caution, Danger, and Warning . . . . 3
CD Player . . . . . . . . . . . . . . . . . . . . . . 191
Center Console Storage . . . . . . . . 109
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 375
Chains, Tire . . . . . . . . . . . . . . . . . . . . 405
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . .118
Charging System Light . . . . . . . . . 132
Check Ignition Transmission Lock . . . 371 Check (cont'd)
Malfunction Indicator
Engine Light . . . . . . . . . . . . . . . . 133
Child Restraints
Infants and Young Children . . . . . 83
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 88
Older Children . . . . . . . . . . . . . . . . . . 81
Securing . . . . . . . . . . . . . . . . . . . . 95, 98
Systems . . . . . . . . . . . . . . . . . . . . . . . . 85
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 427
Interior Care . . . . . . . . . . . . . . . . . . 432
Climate Control Systems
Dual Automatic . . . . . . . . . . . . . . . 231
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Cluster, Instrument . . . . . . . . . . . . . 121
Collision Damage Repair . . . . . . . 464
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 108
Compass . . . . . . . . . . . . . . . . . . . . . . . 115 Messages . . . . . . . . . . . . . . . . . . . . 146
Connections
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 473
Control . . . . . . . . . . . . . . . . . . . . . . . . . 286 Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 284 Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 136
Control of a Vehicle . . . . . . . . . . . . . 239
Convex Mirrors . . . . . . . . . . . . . . . . . . 41
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . . . 357
Engine Temperature Gauge . . 127
Engine TemperatureWarning Light . . . . . . . . . . . . . . . 138
Cooling System . . . . . . . . . . . . . . . . . 356 Engine Messages . . . . . . . . . . . . 146
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 463
Cruise Control . . . . . . . . . . . . . . . . . . 287 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Cupholders . . . . . . . . . . . . . . . . . . . . . 108
Customer Assistance . . . . . . . . . . . 460
Offices . . . . . . . . . . . . . . . . . . . . . . . . 459
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 460
Customer Information
Service PublicationsOrdering Information . . . . . . . . 466
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 457

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 5/3/16
Index 487
Lamps (cont'd)Messages . . . . . . . . . . . . . . . . . . . . 148
On Reminder . . . . . . . . . . . . . . . . . 140
Reading . . . . . . . . . . . . . . . . . . . . . . 173
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 296
Lane Departure Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Lane Keep Assist (LKA) . . . . . . . . 298
Lane Keep Assist Light . . . . . . . . . 136
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 64
Lap-Shoulder Belt . . . . . . . . . . . . . . . 61
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . 94
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 88
LED Lighting . . . . . . . . . . . . . . . . . . . . 373
Light
Hill Decent Control . . . . . . . . . . . 136
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 174
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Illumination Control . . . . . . . . . . . 172
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Airbag On-Off . . . . . . . . . . . . . . . . . 130
Airbag Readiness . . . . . . . . . . . . . 130 Lights (cont'd)
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 135
Brake System Warning . . . . . . . 134
Charging System . . . . . . . . . . . . . 132
Cruise Control . . . . . . . . . . . . . . . . 140
Door Ajar . . . . . . . . . . . . . . . . . . . . . 141
Engine Coolant Temperature Warning . . . . . . . 138
Engine Oil Pressure . . . . . . . . . . 139
Flash-to-Pass . . . . . . . . . . . . . . . . . 169
Four-Wheel-Drive . . . . . . . . . . . . . 136
Front Fog Lamp . . . . . . . . . . . . . . 140
High-Beam On . . . . . . . . . . . . . . . . 140
High/Low Beam Changer . . . . . 168
Lane Departure Warning . . . . . . 136
Low Fuel Warning . . . . . . . . . . . . 139
Safety Belt Reminders . . . . . . . . 129
Security . . . . . . . . . . . . . . . . . . . . . . 140
StabiliTrak
®OFF . . . . . . . . . . . . . 137
Tire Pressure . . . . . . . . . . . . . . . . . 138
Tow/Haul Mode . . . . . . . . . . . . . . . 136
Traction Control System (TCS)/StabiliTrak
®. . . . . . . . . . 138
Traction Off . . . . . . . . . . . . . . . . . . . 137
Locking Rear Axle . . . . . . . . . . . . . . 286
Locks Automatic Door . . . . . . . . . . . . . . . . . 35 Locks (cont'd)
Delayed Locking . . . . . . . . . . . . . . . . 35
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Lockout Protection . . . . . . . . . . . . . . 36
Power Door . . . . . . . . . . . . . . . . . . . . . 35
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Loss of Control . . . . . . . . . . . . . . . . . 241
Low Fuel Warning Light . . . . . . . . . 139
Low-Profile Tires . . . . . . . . . . . . . . . . 385
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 88
Lumbar Adjustment . . . . . . . . . . . . . . 52 Front Seats . . . . . . . . . . . . . . . . . . . . . 52
M
Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 451
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 444
Maintenance Schedule . . . . . . . . . 438 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 447
Transfer Case . . . . . . . . . . . . . . . . 274
Malfunction Indicator Lamp . . . . . 133
Manual Mirrors . . . . . . . . . . . . . . . . . . 41
Manual Mode . . . . . . . . . . . . . . . . . . . 270
Manual Windows . . . . . . . . . . . . . . . . 46
Memory Features . . . . . . . . . . . . . . . . 11