2021 GMC SIERRA navigation

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-14632426) - 2021 - CRC - 11/5/20
174 Infotainment System
This system might not be available or
interference can occur if any of the
following are true:
.Signals are obstructed by tall buildings,
trees, large trucks, or a tunnel.
.Satellites are being repaired or improved.
For more information if the GPS is not
functioning properly, see Problems with
Route Guidance 0174 and
If the System Needs Service 0175.
Vehicle Positioning
At times, the position of the vehicle on the
map could be inaccurate due to one or more
of the following reasons:
.The road system has changed.
.The vehicle is driving on slippery road
surfaces such as sand, gravel, or snow.
.The vehicle is traveling on winding roads
or long, straight roads.
.The vehicle is approaching a tall building
or a large vehicle.
.The surface streets run parallel to a
freeway.
.The vehicle has been transferred by a
vehicle carrier or a ferry.
.The current position calibration is set
incorrectly.
.The vehicle is traveling at high speed.
.The vehicle changes directions more than
once, or the vehicle is turning on a turn
table in a parking lot.
.The vehicle is entering and/or exiting a
parking lot, garage, or a lot with a roof.
.The GPS signal is not received.
.A roof carrier is installed on the vehicle.
.Tire chains are installed on the vehicle.
.The tires are replaced or worn.
.The tire pressure for the tires is incorrect.
.This is the first navigation use after the
map data is updated.
.The 12-volt battery has been disconnected
for several days.
.The vehicle is driving in heavy traffic
where driving is at low speeds, and the
vehicle is stopped and started repeatedly.
Problems with Route Guidance
Inappropriate route guidance can occur
under one or more of the following
conditions:
.The turn was not made on the road
indicated.
.Route guidance might not be available
when using automatic rerouting for the
next right or left turn.
.The route might not be changed when
using automatic rerouting.
.There is no route guidance when turning
at an intersection.
.Plural names of places might be
announced occasionally.
.It could take a long time to operate
automatic rerouting during high-speed
driving.
.Automatic rerouting might display a route
returning to the set waypoint if heading
for a destination without passing through
a set waypoint.
.The route prohibits the entry of a vehicle
due to a regulation by time or season or
any other regulation which may be given.
.Some routes might not be searched.
.The route to the destination might not be
shown if there are new roads, if roads
have recently changed, or if certain roads
are not listed in the map data. See Maps
0 166.
To recalibrate the vehicle's position on the
map, park with the vehicle running for two
to five minutes, until the vehicle position
updates. Make sure the vehicle is parked in

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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Infotainment System 175
a location that is safe and has a clear view
of the sky and away from large
obstructions.
If the System Needs Service
If the navigation system needs service, see
your dealer.
Map Data Updates
The map data in the vehicle is the most
up-to-date information available when the
vehicle was produced. The map data is
updated periodically, provided that the map
information has changed and the vehicle has
a relevant service plan.
Over-the-Air-Vehicle Map Updates
If equipped, the infotainment system can
receive map updates over the air. Map
updates occur within a 161 km (100 mi)
radius around the home address on file. This
boundary will adjust over time based on
driving patterns. The vehicle uses a
Cloud-connected service to receive the date
and downloads it to the system’s onboard
SD card, if equipped. A data plan or
compatible mobile device hotspot is
required. The SD card is required for
navigation system function.When a map update is available, a prompt
will appear on the infotainment display.
Once the update is accepted, it will
download and run in the background
without interruption any infotainment
functions. The download will carry over
ignition cycles, stopping and starting where
it left off. The updates can be set to
download automatically.
See www.gmnavdisc.com for details on
ordering, purchasing, and installing a new or
replacement SD card. Features are subject to
change. For more information on this
feature, see my.gmc.com/learn.
Database Coverage Explanations
Coverage areas vary with respect to the
level of map detail available for any given
area. Some areas feature greater levels of
detail than others. If this happens, it does
not mean there is a problem with the
system. As the map data is updated, more
detail can become available for areas that
previously had limited detail. See
Map Data
Updates 0175.
Voice Recognition
If equipped, voice recognition allows for
hands-free operation within the navigation,
audio, phone, and weather applications. This
feature can be started by pressing
gon the
steering wheel or touching
gon the
infotainment display.
However, not all features within these areas
are supported by voice commands.
Generally, only complex tasks that require
multiple manual interactions to complete
are supported by voice commands.
For example, tasks that take more than one
or two touches, such as a song or artist to
play from a media device, would be
supported by voice commands. Other tasks,
like adjusting the volume or seeking up or
down, are audio features that are easily
performed by touching one or two options,
and are not supported by voice commands.
In general there are flexible ways to speak
commands for completing the tasks.
If your language supports it, try stating a
one-shot command, such as “Directions to
address province>.” Do not include the ZIP code
while stating the address during the

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Infotainment System 177
Natural Language Commands
Most languages do not support natural
language commands in sentence form. For
those languages, use direct commands like
the examples shown on the display.
Helpful Hints for Speaking Commands
Voice recognition can understand commands
that are naturally stated in sentence form or
direct commands that state the application
and the task.
For best results:
.Listen for the prompt before saying a
command or reply.
.Speak the command naturally, not too
fast, not too slow.
.Use direct commands without a lot of
extra words. For example,“Call
at work,” “Play” followed by the artist or
song name, or “Tune”followed by the
radio station number.
.Navigation destinations can be made in a
single command using keywords. A few
examples are: “I want directions to an
address,” “I need to find a place of
interest or (POI),” or“Find contact.” The system responds by requesting more
details. For other POIs, say the name of a
category like
“Restaurants,” “Shopping
Malls,” or“Hospitals.”
.Navigating to a destination outside of the
current country takes more than one
command. The first command is to tell
the system where the navigation will take
place, such as an Address, Intersection,
POI, or Contact. If Address or Intersection
is selected, the second command is to
say, “Change Country.” Once the system
responds, say the country before saying
the rest of the address and/or
intersection.
If POI is asked for, say “Change Location,”
then “Change Country.”
Direct commands might be more clearly
understood by the system. An example of a
direct command would be “Call .”
Examples of these direct commands are
displayed on most of the screens while a
voice session is active. If “Phone”or“Phone
Commands,” is spoken, the system
understands that a phone call is requested
and will respond with questions until
enough details are gathered to make a call. If a cell phone number has been saved with
a name and a place, the direct command
should include both, for example
“Call
at work.”Using Voice Recognition for List Options
When a list is displayed, a voice prompt will
ask to confirm or select an option from
that list.
When a display contains a list, there may be
options that are available but not displayed.
The list on a voice recognition screen
functions the same as a list on other
displays. Scrolling or flinging can be used to
help display other entries from the list.
Manually scrolling or paging the list on a
display during a voice recognition session
suspends the current voice recognition event
and plays the prompt “Please select
manually or touch the Back icon on the
infotainment display to try again.”
If manual selection takes more than
15 seconds, the session terminates and
prompts that it has timed out. The display
returns to the display where voice
recognition was initiated.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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Infotainment System 179
“Play Chapter ”:Begin
playback of a specific chapter.
“Play Audiobook” :Begin a dialog to enter
a specific audiobook.
“Play Audiobook ” :
Begin playback of a specific audiobook.
“Play Episode” :Begin a dialog to enter a
specific name.
“Play Episode ” :Begin
playback of a specific episode.
“Play Podcast” :Begin a dialog to enter a
specific podcast.
“Play Podcast ” :Begin
playback of a specific podcast.
“My Media” :Begin a dialog to enter the
desired media content.
Handling Large Amounts of Media Content
It is expected that large amounts of media
content will be brought into the vehicle.
It may be necessary to handle large
amounts of media content in a different
way than smaller amounts of media. The
system may limit the options of voice
recognition by not allowing selection of files
by voice at the highest level if the number
of files exceeds the maximum limit. Changes to voice commands due to media
content limits are:
.Files including other individual files of all
media types such as songs, audiobook
chapters, podcast episodes, and videos.
.Album type folders including types such
as albums and audiobooks.
There are no restrictions if the number of
files and albums is fewer than 12,000. When
the number of files connected to the system
is between 12,000 and 24,000, the content
cannot be accessed directly with one
command like “Play .”
The restriction is that the command “Play
Song” must be spoken first; the system will
then ask for the song name. The reply
command would be to say the name of the
song to play.
Similar limits exist for album content.
If there are more than 12,000 albums, but
fewer than 24,000, the content cannot be
accessed directly with one command like,
“Play .” The command“Play
Album” must first be spoken; the system
will then ask for the album name. The reply
would be to say the name of the album
to play. Once the number of files has exceeded
approximately 24,000, there is no support
for accessing the songs directly through
voice commands. There will still be access to
the media content by using commands for
playlists, artists, and genres.
The access commands for playlists, artists,
and genres are prohibited after the number
of this type of media exceeds 12,000.
The system will provide feedback the first
time voice recognition is initiated if it has
become apparent that any of these limits
are reached during a device initializing
process.
Voice recognition performance will degrade
to some extent based on many factors when
adding large amounts of data to recognize.
If this is the case, perhaps accessing songs
through playlists or artist name would work
better.
Voice Recognition for Navigation (If
Equipped)
“Navigation”
:Begin a dialog to enter
specific destination information.
“Navigation Commands” :Begin a dialog to
enter specific destination information.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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188 Infotainment System
recognition system. Touch Off to prevent
the sharing and possible recording of your
voice commands with this system. This
may limit the system’s ability to
understand your voice commands and
may disable some features.
.Types: This setting lists all
Android-defined as dangerous permissions
currently used by the infotainment
system, the number of applications that
have requested this permission, and the
number of applications that are allowed
to use this permission.
.Used By Applications: This setting lists all
applications that are requested or are
using Android-defined as dangerous
permissions. Only requested and active
permissions are shown.
Display
Touch and the following may display:
.Mode: This adjusts the appearance of the
navigation map view and any
downloaded apps optimized for day or
night time conditions. Set to Auto for the
display to automatically adjust based on
bright/dark conditions.
Touch Auto, Day, or Night to adjust the
display.
.Calibrate Touchscreen: Touch to calibrate
the infotainment display and follow the
prompts.
.Turn Display Off: Touch to turn the
display off. Touch anywhere on the
infotainment display or press any
infotainment control on the center stack
again to turn the display on.
Sounds
Touch and the following may display:
.Maximum Startup Volume: This feature
adjusts the maximum volume of the
infotainment system when you start your
vehicle. To set the maximum startup
volume, touch the controls on the
infotainment display to increase or
decrease.
.Audio Cues: This feature determines if
sounds play when the infotainment
system starts up and shuts down. This
feature can be turned off or on.
.Set Audio Cue Volume: This setting
controls the volume of Audio Cues played
on startup and shut down. Touch the
controls on the infotainment display to
increase or decrease.
.Audible Touch Feedback: This setting
determines if a sound plays when
touching the infotainment display or
radio controls. This feature can be turned
off or on.
Voice
Touch and the following may display:
.Confirm More/Less: This setting specifies
how often the voice recognition system
confirms commands. Touch Confirm More
to have the system check with you more
often before acting on your commands.
.Prompt Length: This setting specifies the
amount of detail the voice recognition
system provides when giving you
feedback. Touch Auto to have the system
automatically adjust to your speech
habits. Touch Informative, Short, or Auto.
.Audio Feedback Speed: Touch Slow,
Medium, or Fast to adjust how quickly
the voice recognition system speaks.
.Friendly Prompts: This setting adjusts the
formality of voice prompts. Touch Off for
shorter prompts. Touch On to hear
prompts with more personality. Touch
Auto to have the prompt match your
command style.

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Infotainment System 189
.Tutorial Mode: Touch Off or On to
provide tutorial feedback on the display.
.Allow Prompt Interruptions: This setting
controls whether voice commands can be
spoken before voice prompts finish. Turn
this on to speak commands without
hearing the full prompt. Speaking while
the prompt is still playing will
immediately stop playing the current
prompt and recognize your command.
Background noise may cause accidental
interruptions. Touch Off or On.
Favorites
Touch and the following may display:
.Manage Favorites: Touch to display a list
of Audio, Phone, and Navigation favorites.
Favorites can be moved, renamed,
or deleted.
To move, touch and hold the favorite, and
then drag up or down to rearrange the
position.
.Set Number of Audio Favorites: Touch to
select how many favorites pages can be
viewed from the audio application. The
Auto setting will automatically adjust this
number based on the number of favorites
you have saved. Touch Auto, 5, 10, 15, 20,
25, 30, 35, or 40. Updates
If equipped, the vehicle can download and
install select software updates over a
wireless connection. The system will prompt
for certain updates to be downloaded and
installed. There is also an option to check
for updates manually.
To manually check for updates, touch
Settings on the Home Page and select the
System tab. Go to the Vehicle Software
section and touch Updates. Follow the
on-screen prompts. The steps to check for,
download, and install updates may vary by
vehicle.
The vehicle can be used normally during the
software download. Once the download is
complete, there may be a prompt to accept
the installation of the update upon the next
ignition cycle or the next time the vehicle is
shifted into P (Park). For most updates, the
vehicle will be disabled and cannot be driven
during the installation. The system will
deliver messages indicating success or error
during and after the download and
installation processes.
Downloading Over-the-Air vehicle software
updates requires Internet connectivity, which
can be accessed through the vehicle’s
built-in 4G LTE connection, if equipped and active. If required, data plans are provided
by a third party. Optionally, a secure Wi-Fi
hotspot such as a compatible mobile device
hotspot, home hotspot, or public hotspot
can be used. Applicable data rates may
apply.
To connect the infotainment system to a
secured mobile device hotspot, home
hotspot, or public hotspot, touch Settings on
the Home Page, select the System tab,
followed by Wi-Fi Networks. Select the
appropriate Wi-Fi network, and follow the
on-screen prompts. Download speeds
may vary.
On most compatible mobile devices,
activation of the Wi-Fi hotspot is in the
Settings menu under Mobile Network
Sharing, Personal Hotspot, Mobile Hotspot,
or similar.
Availability of Over-the-Air software updates
varies by vehicle and country. Features are
subject to change. For more information on
this feature, see my.gmc.com/learn.
Preferences
Touch the controls on the infotainment
display to disable or enable the download of
new updates in the background.

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190 Infotainment System
About
Touch to view the infotainment system
software information.
Running Applications
Touch to see a complete list of applications
that are currently running on the
infotainment system.
Return to Factory Settings
Touch and the following may display:
.Reset Vehicle Settings: Resets all vehicle
settings for the current user.
Touch Reset or Cancel.
.Erase Settings and Personal Data: Erases
app data settings, user profiles, and
personal data including navigation and
mobile device data.
Touch Erase or Cancel.
.Clear Default Applications: Resets
preferred applications that have been set
to open when selecting a function. No
application data will be lost.
Touch Clear or Cancel.
Apps
The menu may contain the following:
Android Auto
This feature allows you to interact directly
with your mobile device on the infotainment
display. SeeApple CarPlay and Android Auto
0 185.
Touch the controls on the infotainment
display to disable or enable.
Apple CarPlay
This feature allows you to interact directly
with your mobile device on the infotainment
display. See Apple CarPlay and Android Auto
0 185.
Touch the controls on the infotainment
display to disable or enable.
Apps
Touch and the following may display:
.Update Apps Automatically: This allows
downloaded applications to be updated
automatically.
Touch the controls on the infotainment
display to disable or enable.
.About Apps: Touch to view the versions
of the shop software. Audio
Depending on the current audio source,
different options will be available.
Touch and the following may display:
.Tone Settings: Touch to adjust Equalizer,
Fade/Balance, or Sound Mode. See
“Infotainment System Sound Menu”
in
AM-FM Radio 0155.
.Auto Volume: This feature adjusts the
volume based on the vehicle speed.
Touch Off, Low, Medium-Low, Medium,
Medium-High, or High.
.Bose AudioPilot Noise Compensation
Technology (If Equipped): This feature
adjusts the volume based on the noise in
the vehicle and the speed.
Touch Off or On.
.Manage Favorites: Touch to display a list
of Audio, Mobile Devices, and Navigation
favorites.
Favorites can be moved, renamed,
or deleted.
To move, touch and hold the favorite, and
then drag up or down to rearrange the
position.

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Infotainment System 191
.Set Number of Audio Favorites: Touch to
select how many favorites pages can be
viewed from the audio application. The
Auto setting will automatically adjust this
number based on the number of favorites
you have saved. Touch Auto, 5, 10, 15, 20,
25, 30, 35, or 40.
.RDS: This allows the Radio Data System
(RDS) to be turned on or off.
Touch the controls on the infotainment
display to disable or enable.
.HD Radio: This allows HD Radio reception
to be turned on or off.
Touch the controls on the infotainment
display to disable or enable.
.Explicit Content Filter: This setting allows
access to explicit content SiriusXM
channels.
Touch Off or On.
.Manage Phones: Select to connect to a
different phone source, disconnect a
phone, or delete a phone.
.Reset Music Index: This allows the music
index to be reset if you are having
difficulty accessing all of the media
content on your device.
Touch Yes or No.Climate
Touch and the following may display:
.Auto Fan Speed: This setting specifies the
amount of airflow when the climate
control fan setting is Auto Fan.
Touch Low, Medium, or High.
.Air Quality Sensor: This setting switches
the system into Recirculation Mode based
on the quality of the outside air.
Touch Off, Low Sensitivity, or High
Sensitivity.
.Auto Cooled Seats: This setting
automatically turns on and regulates the
ventilated seats when the cabin
temperature is warm.
Touch the controls on the infotainment
display to disable or enable.
.Auto Heated Seats: This setting
automatically turns on and regulates the
heated seats when the cabin temperature
is cool. The auto heated seats can be
turned off by using the heated seat
controls on the center stack.
Touch the controls on the infotainment
display to disable or enable.
.Auto Defog: This setting automatically
turns the front defogger on when the
vehicle engine is started. Touch the controls on the infotainment
display to disable or enable.
.Auto Rear Defog: This setting
automatically turns the rear window
defogger on when the vehicle engine is
started.
Touch the controls on the infotainment
display to disable or enable.
Navigation
Touch and the following may display:
.Set Up My Places
.Map Preferences
.Route Preferences
.Navigation Voice Control
.Traffic Preferences
.Alert Preferences
.Manage History
.Predictive Navigation
.About
See Using the Navigation System 0163.
Phone
Touch and the following may display:
.My Number: Displays the cell phone
number of the Bluetooth connected
device.