
Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
Keys, Doors, and Windows 15
The engine will turn off during a remote
vehicle start if:
.The coolant temperature gets too high.
.The oil pressure gets low.
The remote key range may be reduced
while the vehicle is running.
Other conditions can affect the performance
of the remote key. See Remote Keyless Entry
(RKE) System 08or
Vehicle Personalization 0124.
Starting the Engine Using Remote Start
1. Press
Stwice on the remote key. The
turn signal lamps will flash. The lamps
flash to confirm the request to remote
start the vehicle has been received.
During the remote start, the doors will
be locked and the parking lamps will
remain on as long as the engine is
running.
2. The engine will shut off after 15 minutes or after the remainder of the 30 minute
total running time is used, unless you
stop the remote start before engine
running has completed or the vehicle is
turned on.
3. Press the brake pedal and turn the ignition on to drive the vehicle. Extending Engine Run Time
Remote start can be used for up to
30 minutes of total engine run time.
After two remote starts of 15 minutes,
or multiple shorter time starts totaling
30 minutes have been used, the vehicle
must be started and then turned off before
the remote start can be used again.
Canceling a Remote Start
To cancel a remote start, do one of the
following:.Press and holdSuntil the parking
lamps turn off.
.Turn on the hazard warning flashers.
.Turn the ignition on and then off.
Door Locks
{Warning
Unlocked doors can be dangerous.
.Passengers, especially children, can
easily open the doors and fall out of a
moving vehicle. The doors can be
unlocked and opened while the vehicle
is moving. The chance of being thrown
out of the vehicle in a crash is (Continued)
Warning (Continued)
increased if the doors are not locked.
So, all passengers should wear seat
belts properly and the doors should be
locked whenever the vehicle is driven.
.Young children who get into unlocked
vehicles may be unable to get out.
A child can be overcome by extreme
heat and can suffer permanent injuries
or even death from heat stroke.
Always lock the vehicle whenever
leaving it.
.Outsiders can easily enter through an
unlocked door when you slow down
or stop the vehicle. Locking the doors
can help prevent this from happening.
To lock or unlock the doors from outside the
vehicle:
.PressQorKon the remote key. See
Remote Keyless Entry (RKE) System
Operation 08.
.Use the mechanical key in the
driver door.
To lock or unlock the doors from inside the
vehicle:

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
18 Keys, Doors, and Windows
To open a rear door when the safety lock
is on:1. Unlock the door by activating the inside handle, by pressing the power door
unlock switch, or by using the
remote key.
2. Open the door from the outside.
When the safety lock is enabled, adults and
older children will not be able to open the
rear door from the inside. Cancel the safety
locks to enable the doors to open from the
inside.
To cancel the safety lock: 1. Unlock the door and open it from the outside.
2. Move the lever up to unlock. Do the same for the other door.
Doors
Liftgate
{Warning
Exhaust gases can enter the vehicle if it
is driven with the liftgate or trunk/hatch
open, or with any objects that pass
(Continued)
Warning (Continued)
through the seal between the body and
the trunk/hatch or liftgate. Engine
exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can
cause unconsciousness and even death.
If the vehicle must be driven with the
liftgate or trunk/hatch open:
.Close all of the windows.
.Fully open the air outlets on or under
the instrument panel.
.Adjust the climate control system to a
setting that brings in only outside air
and set the fan speed to the highest
setting. See“Climate Control Systems”
in the Index.
.If the vehicle is equipped with a
power liftgate, disable the power
liftgate function.
See Engine Exhaust 0231.
Caution
To avoid damage to the liftgate or
liftgate glass, make sure the area above
and behind the liftgate is clear before
opening it.
Manual Liftgate
To open the liftgate, pressKon the power
door lock switch or press
Kon the remote
key twice to unlock all doors. Press the
touch pad (1) on the underside of the
liftgate handle and lift up.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
44 Seats and Restraints
unoccupied, the auto heated or ventilated
seats feature will not activate that seat. The
auto heated or ventilated seats feature can
be programmed to always be enabled when
the vehicle is on.
SeeVehicle Personalization 0124.
Remote Start Heated and Ventilated Seats
During a remote start, the heated or
ventilated seats, if equipped, can be turned
on automatically. When it is cold outside,
the heated seats turn on, and when it is hot
outside the ventilated seats turn on. If the
auto heated or ventilated seats feature,
if equipped, is not turned on, the heated or
ventilated seats may be canceled when the
ignition is turned on. If necessary, press the
heated or ventilated seat button to use the
heated or ventilated seats after the vehicle
is started.
The heated or ventilated seat indicator lights
may turn on during a remote start.
The temperature performance of an
unoccupied seat may be reduced. This is
normal. The remote start heated or ventilated seats
may be enabled or disabled in the vehicle
personalization menu. See
Remote Vehicle
Start 014 and
Vehicle Personalization 0124.
Rear Seats
Rear Seat Reminder
If equipped, the message REAR SEAT
REMINDER LOOK IN REAR SEAT displays
under certain conditions indicating there
may be an item or passenger in the rear
seat. Check before exiting the vehicle.
This feature will activate when a second row
door is opened while the vehicle is on or up
to 10 minutes before the vehicle is turned
on. There will be an alert when the vehicle
is turned off. The alert does not directly
detect objects in the rear seat; instead,
under certain conditions, it detects when a
rear door is opened and closed, indicating
that there may be something in the
rear seat.
The feature is active only once each time
the vehicle is turned on and off, and will
require reactivation by opening and closing
the second row doors. There may be an
alert even when there is nothing in the rear seat; for example, if a child entered the
vehicle through the rear door and left the
vehicle without the vehicle being shut off.
The feature can be turned on or off. See
Vehicle Personalization
0124.
Heated Rear Seats
{Warning
If temperature change or pain to the skin
cannot be felt, the seat heater may cause
burns. See the Warning under Heated
and Ventilated Front Seats 043.
The buttons are on the rear of the center
console.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
104 Instruments and Controls
.Info App. This is where the selected Driver
Information Center (DIC) displays can be
viewed. See“Driver Information Center
(DIC) (Uplevel)” in the Index.
.Audio
.Navigation
.Phone
.Options
Home
Information displayed here can be
customized from the Options menu.
Speedometer : Displays how fast the vehicle
is moving in either kilometers per hour
(km/h) or miles per hour (mph).
Speed Sign : If equipped, shows sign
information, which comes from a roadway
database in the onboard navigation,
if equipped.
Temperature : Displays the outside air
temperature.
Time : Displays the current time.
Fuel Range : Displays the approximate
distance the vehicle can be driven without
refueling. The fuel range estimate is based
on an average of the vehicle’s fuel economy over recent driving history and the amount
of fuel remaining in the fuel tank. Fuel
range cannot be reset.
Audio
In the Audio menu, use the thumbwheel to
scroll through options, browse for music,
select from favorites, or change the audio
source. In the main view, scroll to change
the station or go to the next or previous
track.
Navigation
In the Navigation menu, if there is no active
route, a compass will be displayed. If there
is an active route, press the thumbwheel to
cancel or resume route guidance, mute or
unmute voice guidance, or access Recents or
Favorites.
Phone
In the Phone menu, if there is no active
phone call, view recent calls, scroll through
contacts, select from the favorites, or change
the phone source. If there is an active call,
mute the phone or switch to handset
operation.
Options
Use the thumbwheel to scroll through items
in the Options menu.Head-up Display (HUD) :
If equipped, this
feature allows for adjusting the angle of the
HUD image and changing or turning off the
Speed Limit Sign.
HUD Rotation: Press the thumbwheel while
Adjust Rotation is highlighted to enter
Adjust Mode. Scroll to adjust the angle of
the HUD display. Press the thumbwheel to
confirm and save the setting. This feature
may only be available in P (Park).
Speed Limit Style: Press the thumbwheel
while Speed Limit Style is highlighted to
change the speed sign style or to turn it off.
Units : Press the thumbwheel while Units is
displayed to enter the Units menu. Choose
US or metric units by pressing the
thumbwheel while the desired item is
highlighted. A selected mark will be
displayed next to the selected item.
Info Page Options : Press the thumbwheel
while Info Page Options is displayed to
enter and select the items to be displayed
in the Info app. A selected mark will be
displayed next to the selected item.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
142 Infotainment System
.Set up the audio by presetting favorite
stations, setting the tone, and adjusting
the speakers.
.Set up phone numbers in advance so they
can be called easily by pressing a single
control or by using a single voice
command.
See Distracted Driving 0213.
Active Noise Cancellation (ANC)
If equipped, ANC reduces engine noise in the
vehicle’s interior. ANC requires the
factory-installed audio system, radio,
speakers, amplifier (if equipped), induction
system, and exhaust system to work
properly. Deactivation is required by your
dealer if related aftermarket equipment is
installed.
Overview
Infotainment System
The infotainment system is controlled by
using the infotainment display, controls on
the center stack, steering wheel controls,
and voice recognition.
Uplevel Radio
1.O(Power)
.Press to turn the power on.
.Press and hold to turn the
power off.
.Press to mute/unmute the system
when on.
.When the power is on and the
system is not muted, a quick
status pane will display when
Ois
pressed. Pressing
Owill mute the
system and trigger this pane to
show a long press is required to
actually power down the system.
.Turn to decrease or increase the
volume.
2.7
.Radio: Press and release to go to
the previous station or channel.
Press and hold to fast seek the
next strongest previous station or
channel. See AM-FM Radio 0148.
.USB/Bluetooth: Press to seek to
the beginning of the current or
previous track. Press and hold to
quickly reverse through a track.
Release to return to playing speed.
See USB Port 0152 or
Bluetooth Audio 0154.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
Infotainment System 167
.Ask Before Rerouting (Default)–If the
system detects there is a traffic issue
ahead, it will display a pop-up with
details about the issue. Choose to reroute
or cancel the alert.
.Never Search for Better Route –The
system will not check for a better route
until one of the above options is selected.
Alert Preferences
Set alerts on or off during both inactive and
active guidance views. The following alerts
may be available:
.Road Safety Alerts –Touch to display
upcoming School Zones.
.Traffic Camera Alerts
Manage History
Touch Manage History to access the History
options:
.Clear Recent Destinations –Touch\to
clear the recent destinations.
.Clear Search History –Touch\to clear
the search history.
About
Touch to display software information,
such as:
.Telenav Terms and Conditions
.Telenav Privacy Statement
.Navigation Version
Maps
The Nav application requires a map database
to run. It is stored on an SD card that is
connected to the infotainment system. If the
map database is not available, a missing SD
card error message will be displayed.
SD Card Error Messages
The SD card only works for one unique
vehicle. The SD card must pass
authentication verification to be used for
that specific vehicle. Potential error scenarios
and messages include:
.The SD card has initialized for the first
time: “Once initialized, this SD card can
only be used for navigation in this
vehicle.”
.The SD card is not working properly: “SD
card is not functioning properly.
(Error Code).”
.The SD card is not paired with the
existing system: “This SD card is not valid
in this vehicle for navigation. See Owner’s
Manual for more detail or visit your
dealer. (Error Code).”
.The SD card has been removed from the
slot: “SD card has been removed.
(Error Code).”
Touch Continue to resume after the
initialization error message. For the other
messages, touch OK to return to the
Home Page.
Navigation Symbols
Following are the most common symbols
that may appear in the Nav application.
This indicates the vehicle’s current location
and direction on the map.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
172 Infotainment System
Incident Reports (If Equipped)
Incident report icons, along with traffic flow
data, display on the map during both active
and inactive guidance.
End Route
Touch Cancel at the top right corner to end
active guidance and return to inactive
guidance. If active guidance is canceled
before the destination has been reached, a
pop-up option to Resume Trip will appear.
Resume Trip
The trip can be resumed if it was canceled
by touching the Resume Trip pop-up option.
If the system has determined that the
destination has been reached, either because
the arrival view displayed or the destination
has been passed, the Resume Trip option
will not appear.
Favorites
The navigation favorites can have contacts,
addresses, or POIs that have been saved
through the favorite icon on the
details view.Accessing Favorites
In the Nav application, view the Favorites
list by touching
Hin the search bar along
the top of the Nav map view. If the search
bar is closed, touch
}and selectH.
Saving Favorites
Favorites can be added from a number of
the system’s applications. Touch the
favorites icon to save content as a favorite.
Renaming Navigation Favorites 1. Touch the Settings icon on the Home Page and touch the System tab.
2. Touch Favorites to access the Manage Favorites option.
3. Touch a saved Navigation favorite to access the edit icon. Touch the edit icon
to rename the favorite.
4. Touch Save to store the renamed favorite.
Recents
TouchHto access a list of recent
destinations. Recenter Position Icon
Touch the Recenter Position arrow in the
middle of the map view to reset the map to
the current location.
Last Parked Location
The Last Parked Location is the last location
the vehicle engine was turned off. That
location is displayed in the first row of the
Recents list. Touching the last Parked
Location shows the Address Details view to
either save the address or drive to it. The
Last Parked Location can be deleted by
entering the Edit display. Once the Last
Parked Location is deleted, it no longer
appears in the Recents list, unless the
vehicle is started at that location again.
Show POI Icons
To see the POI categories, touch Options,
then touch Show on Map. Up to eight
categories of icons can be selected.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-13690484) - 2021 - crc - 8/17/20
174 Infotainment System
OnStar System
With a connected plan, an OnStar Advisor
can download a destination to the vehicle or
into the built-in navigation system.
Touch OnStar Services on the Home Page to
access the OnStar menu. Touch Turn-by-Turn
Directions icon while on the Services tab of
the OnStar menu.
Turn-by-Turn Navigation
If equipped, after touching the Turn-by-Turn
Directions icon, select destinations from
Recents or Favorites. Recents or Favorites
will be empty if this is the first use. To find
new locations, touch OnStar Advisor, Home
Directions, Place Voice Search, or Address
Voice Search.
Lane Guidance
When available, the system will show the
best lane(s) to be in for the next maneuver.
Cancel a Route
If a route is in progress using either the
vehicle navigation system or the
Turn-by-Turn route, and a new route is
requested, the current route in progress will
be canceled.
Global Positioning System (GPS)
If equipped, the position of the vehicle is
determined by using satellite signals, various
vehicle signals, and map data.
At times, other interference such as the
satellite condition, road configuration,
condition of the vehicle, and/or other
circumstances can affect the navigation
system's ability to determine the accurate
position of the vehicle.
The GPS shows the current position of the
vehicle using signals sent by GPS satellites.
When the vehicle is not receiving signals
from the satellites, a symbol appears in the
status bar.
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 0175 and
If the System Needs Service 0175.