2021 CHEVROLET SILVERADO 2500HD ECO mode

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
Infotainment System 153
by model and require a complete working
electrical system, cell reception, and GPS
signal. An active connected plan is required.
Reference the SiriusXM user guide for use
and subscription information.
Radio Reception
Unplug electronic devices from the accessory
power outlets if there is interference or
static in the radio.
FM
FM signals only reach about 16 to 65 km (10
to 40 mi). Although the radio has a built-in
electronic circuit that automatically works to
reduce interference, some static can occur,
especially around tall buildings or hills,
causing the sound to fade in and out.
AM
The range for most AM stations is greater
than for FM, especially at night. The longer
range can cause station frequencies to
interfere with each other. Static can also
occur when things like storms and power
lines interfere with radio reception. When
this happens, try reducing the treble on the
radio.
SiriusXM Satellite Radio Service
If equipped, SiriusXM Satellite Radio Service
provides digital radio reception. Tall
buildings or hills can interfere with satellite
radio signals, causing the sound to fade in
and out. In addition, traveling or standing
under heavy foliage, bridges, garages,
or tunnels may cause loss of the SiriusXM
signal for a period of time. Some cellular
services may interfere with SXM reception
causing loss of signal.
Mobile Device Usage
Mobile device usage, such as making or
receiving calls, charging, or just having the
mobile device on may cause static
interference in the radio. Unplug the mobile
device or turn it off if this happens.
Fixed Mast Antenna
The fixed mast antenna will go through
most car washes as long as it is securely
attached. If the antenna becomes slightly
bent, straighten it out by hand. If it is badly
bent, replace it.
Occasionally check that the antenna is tight
at the base. If tightening is required, protect
the paint from damage.
Multi-Band Antenna
The roof antenna is for SiriusXM Satellite
Radio, OnStar, and GPS (Global Positioning
System), depending on the equipped
options. Keep clear of obstructions for clear
reception. If the vehicle has a sunroof, and it
is open, reception can also be affected.
Audio Players
Avoiding Untrusted Media Devices
When using media devices such as SD cards,
USB devices, and mobile devices, consider
the source. Untrusted media devices could
contain files that affect system operation or
performance. Avoid use if the content or
origin cannot be trusted.
USB Port
This vehicle is equipped with two USB ports
in the center console under the armrest and
another two in the center stack. These ports
are for data and charging.
There may also be two USB ports for
charging only at the rear of the center
console.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
160 Infotainment System
.About
To exit a list, touch
zin the top right
corner to return to the main map view.
Make sure to set up preferences before
setting a destination and starting active
guidance.
Map Preferences
Touch to choose between basic map feature
configurations:
Map Colors
.Auto –Touch to automatically change
modes based on lighting conditions.
.Day (Light)
.Night (Dark)
3D Landmark (Default is On) : Touch On or
Off. When turned on, the system will
display all 3D Landmarks on the map
depending on the zoom level.
3D Building (Default is Off) : Touch On or
Off. When turned on, the system will
display all of the possible 3D building shapes
on the map depending on the zoom level.
Show Terrain in 3D (Default is Off) :
If equipped, touch On or Off. When turned
on, the system will display terrain
information on the map in 3D view. Auto-Zoom (Default is On) :
Touch On or
Off. When turned on, the system will
automatically adjust the zoom level when
the vehicle is approaching a turn. After the
turn is completed, the system automatically
brings the zoom back to the originally set
level. If the vehicle is approaching a turn
with the next turn occurring shortly after,
the Auto-Zoom will remain on until both
turns are completed.
Route Preferences
Touch to access the Route Preferences. The
choices are:
.Preferred Route –Choose from two
different route options: Fastest or
Eco-Friendly.
‐ Fastest would be the route with the
shortest drive time.
‐ Eco-Friendly would be the most
fuel-efficient route.
.Avoid on Current Route –Choose any of
the road features to avoid while on route:
‐ Highways
‐ Unpaved Roads
‐ Ferries
‐ Carpool Lanes
‐ Toll Roads ‐
Tunnels
‐ Country Borders
Navigation Voice Control
Touch to access the voice control setting
display.
.Navigation Volume –To adjust the
volume level, touch the up and down
arrows. If the voice guidance prompt is
being heard, volume can also be adjusted
using the knob on the center stack or the
volume switch on the steering wheel.
.Navigation Voice Prompt Level during a
Call. Options available are:
‐ Full Prompt (Selected by default)
‐ Tone Only
‐ None
Traffic Events (If Equipped)
This feature provides a list of events that
are on the route or nearby. Touch
Aand
then select Traffic Events. An OnStar
connected Navigation service plan is
required.
Traffic Preferences (If Equipped)
While in Map View, touch
A, then Settings
and then Map and Navigation Settings to
access Traffic Preferences. When Show

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
Infotainment System 171
Using Voice Recognition
Voice recognition becomes available once
the system has been initialized. This begins
when the ignition is turned on. Initialization
may take a few moments.1. Press
gon the steering wheel controls
to activate voice recognition.
2. The audio system mutes and the system plays a prompt.
3. Clearly speak one of the commands described in this section.
A voice recognition system prompt can
be interrupted while it is playing by
pressing
gagain.
Once voice recognition is started, both the
infotainment display and instrument cluster
show the selections and visual dialog
content. These displays can be turned on or
off in the Tutorial Mode under Settings
0 181.
There are three voice prompt modes
supported:
.Informative verbal prompts: This type of
prompt will provide more information
regarding the supported actions.
.Short prompts: This type of prompt will
provide simple instructions about what
can be stated.
.Auto informative prompts: This type of
prompt plays during the first few speech
sessions, then automatically switches to
the short prompt after some experience
has been gained through using the
system.
If a command is not spoken, the voice
recognition system says a help prompt.
Prompts and Infotainment Displays
While a voice recognition session is active,
there may be corresponding options
showing on the displays. A selection can be
made by manually touching the option,
or by speaking the number for the option to
select. Manual interaction in the voice
recognition session is permitted. Interaction
during a voice session may be completed
entirely using voice commands while some
manual commands may expedite a task. If a
selection is made using a manual control,
the voice recognition dialog will progress in
the same way as if the selection were made
using a voice command. Once the system
completes the task, or the session is
terminated, the voice recognition dialog
stops. An example of this type of manual
intervention is touching an entry of a
displayed number list instead of speaking
the number associated with the entry
desired.
Canceling Voice Recognition
.Touch or say
“Cancel”or“Exit” to
terminate the voice recognition session
and show the display where voice
recognition was initiated.
.Pression the steering wheel controls
to terminate the voice recognition session
and show the display where voice
recognition was initiated.
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.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
Infotainment System 175
The name must be precisely spoken.
Nicknames or short names for the
businesses will not likely be found. Lesser
known businesses might have to be located
by category, such as fast food, hotels,
or banks.
“Navigate to Contact”:Begin a dialog to
enter a specific destination contact name.
“Cancel Route” :End route guidance.
“Take Me Home” :Create a route to a
stored home location.
Voice Recognition for the Phone
“Call ” :Initiate a call to a
stored contact. The command may include
location if the contact has location numbers
stored.
“Call At Home,” “At Work,” “On
Mobile,” or“On Other” :Initiate a call to a
stored contact and location at home, at
work, on mobile device, or on another
phone.
“Call ” :Initiate a call
to a cell phone number of seven digits, 10
digits, or three digit emergency numbers.
“Pair Phone” :Begin the Bluetooth pairing
process. Follow the instructions on the
infotainment display. “Redial”
:Initiate a call to the last dialed
number.
“Switch Phone” :Select a different
connected cell phone for outgoing calls.
“Voice Keypad” :Begin a dialog to enter
special numbers like international numbers.
The numbers can be entered in groups of
digits with each group of digits being
repeated back by the system. If the group
of digits is not correct, the command
“Delete” will remove the last group of digits
and allow them to be re-entered. Once the
entire number has been entered, the
command “Call”will start dialing the
number.
Phone Assistant Voice Recognition
Press and holdgon the steering wheel
controls to pass through and launch Google
phone assistant or Siri.
For the low radio, whether connected by
Bluetooth or phone projection, the only
available voice recognition is either Siri
(iPhone) or the Google Assistant (Android).
Phone
Bluetooth (Overview)
The Bluetooth-capable system can interact
with many mobile devices, allowing:
.Placement and receipt of calls in a
hands-free mode.
.Sharing of the device’s address book or
contact list with the vehicle.
To minimize driver distraction, before
driving, and with the vehicle parked:
.Become familiar with the features of the
mobile device. Organize the phone book
and contact lists clearly and delete
duplicate or rarely used entries.
If possible, program speed dial or other
shortcuts.
.Review the controls and operation of the
infotainment system.
.Pair mobile device(s) to the vehicle. The
system may not work with all mobile
devices. See “Pairing”later in this section.
Vehicles with a Bluetooth system can use a
Bluetooth-capable mobile device with a
Hands-Free Profile to make and receive
phone calls. The infotainment system and
voice recognition are used to control the
system. The system can be used while the

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
178 Infotainment System
If needed, touch the Secondary Phone while
in the Phones list to swap it into the
Outgoing and Incoming role. This role makes
it possible to place outgoing calls from the
Contacts and Recents list.
Listing All Paired and Connected Phones1. Touch the Phone icon on the Home Page or the phone icon on the shortcut tray
near the bottom of the display.
2. Touch Phones.
Disconnecting a Connected Phone 1. Touch the Phone icon on the Home Page.
2. Touch Phones.
3. Touch the information icon next to the connected cell phone or mobile device to
show the cell phone’s or mobile device’s
information display.
4. Touch Disconnect.
Deleting a Paired Phone 1. Touch the Phone icon on the Home Page or the phone icon on the shortcut tray
near the bottom of the display.
2. Touch Phones. 3. Touch the information icon next to the
connected cell phone to display the cell
phone’s or mobile device’s information
display.
4. Touch Forget Device.
Linking to a Different Phone
To link to a different cell phone, the new
cell phone must be in the vehicle and paired
to the Bluetooth system. 1. Touch the Phone icon on the Home Page or the phone icon on the shortcut tray
near the bottom of the display.
2. Touch Phones.
3. Touch the new cell phone to link to from the not connected phone list. See “First
to Connect Paired Phones” and
“Secondary Phone” previously in this
section.
Switching to Handset or
Handsfree Mode
To switch between handset or
handsfree mode:
.While the active call is hands-free, touch
the Handset option to switch to the
handset mode.
The mute icon will not be available or
functional while Handset mode is active.
.While the active call is on the handset,
touch the Handset option to switch to the
hands-free mode.
Making a Call Using Contacts and Recent
Calls
Calls can be made through the Bluetooth
system using personal cell phone contact
information for all cell phones that support
the Phone Book feature. Become familiar
with the cell phone settings and operation.
Verify the cell phone supports this feature.
The Contacts menu accesses the phone book
stored in the cell phone.
The Recents menu accesses the recents call
list from your cell phone.
To make a call using the Contacts menu:
1. Touch the Phone icon on the Home Page.
2. Touch Contacts.
3. The Contacts list can be searched by using the first character. Touch A-Z on
the infotainment display to scroll
through the list of names.
Touch the name to call.
4. Touch the desired contact number to call.
To make a call using the Recents menu: 1. Touch Phone on the Home Page.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
Infotainment System 183
.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.
.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

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
Infotainment System 187
.Re-sync Device Contacts:
This allows the device contacts to re-sync
if you are having difficulty accessing all of
the contacts on your cell phone.
.Delete All Vehicle Contacts: Touch to
delete all vehicle stored contacts.
.OnStar Phone TTY Mode: This enables
OnStar cell phone TTY mode.
Touch Disable or Enable.
Vehicle
This menu allows adjustment of different
vehicle features. SeeVehicle Personalization
0 126.
Personal
If equipped, this menu allows adjustment of
different user profile settings. See “Users”in
Using the System 0147 for information on
setting up user profiles.
The menu may contain the following:
Name
Touch to edit your user name that will be
displayed in the vehicle. Vehicle Account Information
Touch to view the vehicle account
information and to change the account
password.
An
“unverified user account” pop-up will
display until the account information
verification process has been completed on
the Internet. Check your registered e-mail
account for an activation e-mail to complete
the verification process.
Profile Picture
Touch to choose or change your profile
picture.
Profile Identifiers
Touch to have the vehicle recognize the
identifier you choose.
Touch Vehicle Key 1 and/or Vehicle Key 2.
If the Remote Keyless Entry (RKE)
transmitter is lost or stolen, see your dealer.
Security
Touch to have your profile secured with
a PIN.
Touch No or Yes.
Vehicle Name
Touch to edit your vehicle name. Vehicle Account
Touch to view the vehicle account
information and to change the account
password.
Delete Profile
Touch to remove the profile from the
vehicle.
Touch Remove or Cancel.
Teen Driver
If equipped, this allows multiple keys to be
registered for beginner drivers to encourage
safe driving habits. When the vehicle is
started with a Teen Driver key, it will
automatically activate certain safety
systems, allow setting of some features, and
limit the use of others. The Report Card will
record vehicle data about driving behavior
that can be viewed later. When the vehicle
is started with a registered key, the Driver
Information Center (DIC) displays a message
that Teen Driver is active.
To access:
1. Touch Settings on the Home Page, then touch Vehicle, and then Teen Driver.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-14632154) - 2021 - CRC - 11/20/20
Climate Controls 201
Dual Automatic Climate Control System
The heating, cooling, and ventilation in the vehicle can be controlled with this system.
1. Driver and Passenger TemperatureControls
2. MAX Defrost
3. Air Delivery Mode Controls
4. A/C (Air Conditioning)
5. SYNC (Synchronized Temperature)
6. Recirculation 7. Power Button
8. Fan Control
9. Rear Window Defogger (If Equipped) or
Heated Mirrors (If Equipped)
10. AUTO (Automatic Operation)
Climate Control Display
1. Driver and Passenger Temperature Settings
2. Fan Control
3. Driver and Passenger Temperature Controls
4. Sync (Synchronized Temperature)
5. Recirculation
6. Air Delivery Mode Controls
7. Auto (Automatic Operation)
8. A/C (Air Conditioning)
9. On/Off (Power)