back CHEVROLET TRAILBLAZER 2021 Service Manual

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Instruments and Controls 111
Auto Rear Defog
When on, this feature turns on the rear
defogger at vehicle start when the interior
temperature is cold and fog is likely. See
“Rear Window Defogger”underAutomatic
Climate Control System 0176.
Touch Off or On.
Collision / Detection Systems
Touch and the following may display:
.Forward Collision System
.Front Pedestrian Detection
.Adaptive Cruise Go Notifier
.Lane Change Alert
.Rear Camera Park Assist Symbols
.Rear Cross Traffic Alert
.Rear Park Assist
Forward Collision System
This setting controls the vehicle response
when detecting a vehicle ahead of you. The
Off setting disables all FCA and AEB
functions. With the Alert and Brake setting,
both FCA and AEB are available. The Alert
setting disables AEB. See Automatic
Emergency Braking (AEB) 0224.
Touch Off, Alert, or Alert and Brake. Front Pedestrian Detection
This feature may help avoid or reduce the
harm caused by front-end crashes with
nearby pedestrians. See
Front Pedestrian
Braking (FPB) System 0226.
Touch Off, Alert, or Alert and Brake.
Adaptive Cruise Go Notifier
This setting determines if an alert will
appear when Adaptive Cruise Control brings
the vehicle to a complete stop and the
vehicle ahead of you starts moving again.
See Adaptive Cruise Control (Camera) 0211.
Touch Off or On.
Lane Change Alert
This allows the feature to be turned on or
off. See Lane Change Alert (LCA) 0228.
When Lane Change Alert is disabled, Side
Blind Zone Alert is also disabled.
Touch Off or On.
Rear Camera Park Assist Symbols
This setting enables the Rear Camera Park
Assist Symbols. See Assistance Systems for
Parking or Backing 0221.
Touch Off or On. Rear Cross Traffic Alert
This setting specifies if you see alerts when
the vehicle detects approaching rear cross
traffic when in R (Reverse). See
Assistance
Systems for Parking or Backing 0221.
Touch Off or On.
Rear Park Assist
This setting specifies if you have alerts
when a object is detected at parking or
backing when in R (Reverse). See Assistance
Systems for Parking or Backing 0221.
Touch Off or On.
Comfort and Convenience
Touch and the following may display:
.Chime Volume
.Handsfree Liftgate/Trunk Control
.Auto Wipe in Reverse Gear
.Extended Hill Start Assist
Chime Volume
This allows the selection of the chime
volume level.
Touch + or −to adjust the volume

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
112 Instruments and Controls
Hands Free Liftgate Control
The liftgate may be operated with a kicking
motion under the left side of the rear
bumper. SeeLiftgate022
Touch Off, On-Open and Close,
or On-Open Only.
Auto Wipe in Reverse Gear
This setting automatically turns on the rear
window wiper when the vehicle is in
R (Reverse) and the front wipers are on.
Touch Off or On.
Extended Hill Start Assist
This allows the duration of the Hill Start
Assist to be changed.
Touch Extended Hold or Standard Hold.
Lighting
Touch and the following may display:
.Vehicle Locator Lights
.Exit Lighting
Vehicle Locator Lights
This feature will flash the exterior lamps
when
Kon the Remote Keyless Entry (RKE)
transmitter is pressed to locate the vehicle.
Touch Off or On. Exit Lighting
This allows the selection of how long the
exterior lamps stay on when leaving the
vehicle when it is dark outside.
Touch Off, 30 Seconds, 60 Seconds, or 120
Seconds.
Power Door Locks
Touch and the following may display:
.Open Door Anti Lock Out
.Auto Door Unlock
.Delayed Door Lock
Open Door Anti Lock Out
This setting prevents the driver door from
locking when the door is open. If this
setting is on, the Delayed Door Lock menu
will not be available.
Touch Off or On.
Auto Door Unlock
This setting allows you to select which
doors will automatically unlock when the
vehicle is shifted into P (Park).
Touch Off, All Doors, or Driver Door. Delayed Door Lock
This setting delays the locking of the doors.
To override the delay, press the power door
lock switch on the door.
Touch Off or On.
Remote Lock, Unlock, Start
Touch and the following may display:
.Remote Unlock Light Feedback
.Remote Lock Feedback
.Remote Door Unlock
.Remote Start Auto Heat Seats
.Passive Door Unlock
.Passive Door Lock
.Remote Left in Vehicle Alert
Remote Unlock Light Feedback
This setting flashes the exterior lamps when
you remotely unlock the vehicle.
Touch Off or Flash Lights.
Remote Lock Feedback
This setting specifies how the vehicle
responds when you remotely lock the
vehicle.
Touch Off, Lights and Horn, Lights Only,
or Horn Only.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Instruments and Controls 113
Remote Door Unlock
This setting specifies whether all doors,
or just the driver door, unlock when pressing
Kon the RKE transmitter.
Touch All Doors or Driver Door.
Remote Start Auto Heat Seats
This setting automatically turns on the
heated seats when using the remote start
function on cold days.
Touch Off or On.
Passive Door Unlock
This setting specifies which doors unlock
when using the button on the driver door
handle to unlock the vehicle.
Touch All Doors or Driver Door Only.
Passive Door Lock
This setting specifies whether the vehicle
will automatically lock, or lock and alert you
after all the doors are closed, and you walk
away from the vehicle with the RKE
transmitter. See Remote Keyless Entry (RKE)
System Operation (Key Access) 09or
Remote Keyless Entry (RKE) System
Operation (Keyless Access) 011.
Touch Off, On with Horn Chirp, or On. Remote Left in Vehicle Alert
This feature sounds an alert when the RKE
transmitter is left in the vehicle. This menu
also enables Remote No Longer in Vehicle
Alert.
Touch Off or On.
Teen Driver
See
Teen Driver 0162.
Valet Mode
This will lock the infotainment system and
steering wheel controls. It may also limit
access to vehicle storage locations,
if equipped.
To enable valet mode:
1. Enter a four-digit code on the keypad.
2. Touch Enter to go to the confirmation screen.
3. Re-enter the four-digit code.
Touch Lock or Unlock to lock or unlock the
system. Touch Back to go back to the
previous menu.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
120 Lighting
When the battery's state of charge is low,
the voltage is raised slightly to quickly bring
the charge back up. When the state of
charge is high, the voltage is lowered
slightly to prevent overcharging. If the
vehicle has a voltmeter gauge or a voltage
display on the Driver Information Center
(DIC), you may see the voltage move up or
down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for
all vehicles. This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the power
needed for very high electrical loads.
A high electrical load occurs when several of
the following are on, such as: headlamps,
high beams, rear window defogger, climate
control fan at high speed, heated seats,
engine cooling fans, trailer loads, and loads
plugged into accessory power outlets.
EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator's output and the vehicle's
electrical needs. It can increase engine idle
speed to generate more power whenever
needed. It can temporarily reduce the power
demands of some accessories.Normally, these actions occur in steps or
levels, without being noticeable. In rare
cases at the highest levels of corrective
action, this action may be noticeable to the
driver. If so, a DIC message might be
displayed and it is recommended that the
driver reduce the electrical loads as much as
possible.
Battery Power Protection
This feature shuts off the interior lamps if
they are left on for more than 10 minutes
when the ignition is off. This helps to
prevent the battery from running down.
Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes
after the ignition is turned off, if the parking
lamps or headlamps have been manually
left on. This protects against draining the
battery. To restart the 10-minute timer, turn
the exterior lamp control to the off position
and then back to the parking lamp or
headlamp position.
To keep the lamps on for more than
10 minutes, the ignition must be on or
in ACC/ACCESSORY.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Infotainment System 123
.Turn to decrease or increase the
volume.
4.
d:
.Radio: Press and release to fast seek
the next strongest station or channel.
Press and hold to go to the next
station or channel.
.USB/Bluetooth: Press to seek the next
track. Press and hold to fast forward
through a track. Release to return to
playing speed.
5. BACK:
.Press to return to the previous screen
in a menu.
Steering Wheel Controls

If equipped, some audio controls can be
adjusted at the steering wheel.
g: Press to answer an incoming call or
start voice recognition. See Bluetooth
(Overview) 0151 or
Bluetooth (Pairing and Using a Phone) 0152.
c:Press to reject an incoming call or end
a current call. Press to mute or unmute the
infotainment system when not on a call.
The favorite and volume switches are on the
back of the steering wheel.
1. Favorite: When on a radio source, press to select the next or previous favorite.
When on a media source, press to select
the next or previous track.
2. Volume: Press to increase or decrease the volume.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Infotainment System 127
Touch the station or channel you want to
listen to. Touch
Hto save the station or
channel as a favorite.
If equipped, touch Update Station List to
update the active stations in your area.
Direct Tune
Access Direct Tune by touching the Tune
icon on the infotainment display to bring up
the keypad. Navigate through all frequencies
using the arrows on the right side of the
Direct Tune display. Directly enter a station
or channel using the keypad. When a new
station or channel is entered, the
information about that station or channel
displays on the right side. This information
will update with each new valid frequency.
Touch
Hto save the station or channel as
a favorite. The keypad will gray out entries that do not
contribute to a valid frequency and will
automatically place a decimal point within
the frequency number.
Touch (X) to delete one number at a time.
Touch and hold (X) to delete all numbers.
A valid AM or FM station will automatically
tune to the new frequency but not close the
Direct Tune display. When listening to SXM
(if equipped), touch Go after entering the
channel. Touch the Back icon on the
infotainment display or touch
zto exit out
of Direct Tune.
The tune arrows on the right side of the
Direct Tune display will tune through the
complete station or channel list one station
step at a time per touch. A touch and hold
advances through stations or channels
quickly.
If equipped, HD Radio multicast stations
cannot be tuned directly through the Direct
Tune feature. Only the analog or
HD1 station can use that feature. Use the
display arrows to adjust to the multicast
stations.
AM, FM, and SXM Categories
From the AM stations, if equipped with HD
Radio, FM, or SXM (if equipped) display,
touch Categories at the top of the Browse
menu to access the categories list. The list
contains names associated with the AM or
FM stations, or SXM channels. Touch a
category name to display a list of stations
or channels for that category. Touching a
station or channel from the list will tune the
radio to that station or channel.
Storing Radio Station Favorites
Favorites show in the area at the top of the
display.
AM, FM, SXM (if equipped) Radio Stations :
Touch and hold a preset to store the current
station or channel as a favorite. Touch a
saved favorite to recall a favorite station.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
130 Infotainment System
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
Audio stored on a USB device may be
listened to.
This vehicle is equipped with two USB ports
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.
Caution
To avoid vehicle damage, unplug all
accessories and disconnect all accessory
cables from the vehicle when not in use.
Accessory cables left plugged into the
vehicle, unconnected to a device, could be
damaged or cause an electrical short if
(Continued)
Caution (Continued)
the unconnected end comes in contact
with liquids or another power source such
as the accessory power outlet.
Playing from a USB
A USB mass storage device can be connected
to the USB port.
Audio extensions supported by the USB are:
.MP3
.AAC
.OGG
.3GP
Gracenote
When plugging in a USB device, Gracenote
service builds voice tags for music. Voice
tags allow artists, albums with hard to
pronounce names, and nicknames to be used
to play music through voice recognition,
if equipped. While indexing, infotainment features may
be available
My Media Library
MyMedia is only available when more than
one indexed device is connected. It allows
access to content from all indexed media
sources. MyMedia will show as an available
source in the Source page.
USB MP3 Player and USB Devices
The USB MP3 players and USB devices
connected must comply with the USB Mass
Storage Class specification (USB MSC).
To play a USB device:
1. Connect the USB.
2. Touch Audio from the Home Page.
3. Touch More and then touch the USB device.
Use the following when playing an active
USB source:
p: Touch to play the current media
source.
j: Touch to pause playback of the current
media source.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Infotainment System 131
7:
.Touch to seek to the beginning of the
current or previous track.
.Touch and hold to reverse quickly
through playback. Release to return to
playing speed. Elapsed time displays.
6:
.Touch to seek to the next track.
.Touch and hold to advance quickly
through playback. Release to return to
playing speed. Elapsed time displays.
Shuffle : Touch the shuffle icon to play
music in random order.
USB Sound Menu
See “Infotainment System Sound Menu”
under AM-FM Radio 0126.
USB Browse Menu
When a list of songs, albums, artists,
or other types of media displays, the up and
down arrows and A-Z appear on the left
side. Select A-Z to view a display that will
show all letters of the alphabet and select
the letter to go to.
Touch the up and down arrows to move the
list up and down. Touch Browse and the following may
display:
Playlists:
1. Touch to view the playlists stored on the USB.
2. Touch a playlist to view the list of all Songs in that playlist.
3. Touch a song from the list to begin playback.
Supported Playlist extensions are m3u, pls.
Artists: 1. Touch to view the list of artists stored on the USB.
2. Touch an artist name to view a list of all albums by the artist.
3. To select a song, touch All Songs or touch an album and then touch a song
from the list.
Songs: 1. Touch to display a list of All Songs on the USB.
2. To begin playback, touch a song from the list.
Albums: 1. Touch to view the albums on the USB. 2. Touch the album to view a list of All
Songs on the album.
3. Touch a song from the list to begin playback.
Genres: 1. Touch to view the genres on the USB.
2. Touch a genre to view a list of artists.
3. Touch an artist to view albums by that artist.
4. Touch an album to view songs on the album.
5. Touch a song to start playback.
Composers: 1. Touch to view the composers on the USB.
2. Touch a Composer to view a list of albums by that composer.
3. Touch an album or All Songs to view a list of songs.
4. Touch a song from the list to begin playback.
Folders: 1. Touch to view the directories on the USB.
2. Touch a folder to view a list of all files.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
132 Infotainment System
3. Touch a file from the list to beginplayback.
Podcasts : Touch to view the podcasts on
the USB and get a list of podcast episodes.
Audiobooks:
1. Touch to view the audiobooks stored on the USB.
2. Touch an audiobook to get a list of chapters.
3. Touch the chapter from the list to begin playback.
File System and Naming
File systems supported by the USB are:
.FAT32
.NTFS
.HFS+
The songs, artists, albums, and genres are
taken from the file’s song information and
are only displayed if present. The radio
displays the file name as the track name if
the song information is not available.
Supported Apple Devices
To view supported devices, see
my.chevrolet.com/learn.
Storing and Recalling Media Favorites
To store media favorites, touch Browse to
display a list of media types.
Select from one of the following Browse
options to save a favorite:
Playlists : Touch
Hnext to any playlist to
store the playlist as a favorite. Touch a
saved favorite to recall a favorite playlist.
The first song in the playlist begins to play.
Artists : Touch
Hnext to any artist to
store the artist as a favorite. Touch a saved
favorite to recall a favorite artist. The first
song in the artist list begins to play.
Songs : Touch
Hnext to any song to store
the song as a favorite. Touch a saved
favorite to recall a favorite song.
Albums : Touch
Hnext to any album to
store the album as a favorite. Touch a saved
favorite to recall a favorite album. The first
song in the album list begins to play.
Genres : Touch
Hnext to any genre to
store the genre as a favorite. Touch a saved
favorite to recall a favorite genre. The first
song of the genre begins to play. Podcasts :
Touch
Hnext to any podcast to
store the podcast as a favorite. Touch a
saved favorite to recall a favorite podcast.
The podcast begins to play.
Audiobooks : Touch
Hnext to any
audiobook to store the audiobook as a
favorite. Touch a saved favorite to recall a
favorite audiobook. The first chapter in the
audiobook begins to play.
Media Playback and Mute
USB playback will be paused if the system is
muted. If the steering wheel mute control is
pressed again, playback will resume.
If the source is changed while in mute,
playback resumes and audio will unmute.
Auxiliary Jack
This vehicle has an auxiliary input jack in
the center stack. Possible auxiliary audio
sources include:
.Laptop computer
.Audio music player
This jack is not an audio output. Do not
plug headphones into the auxiliary input
jack. Set up an auxiliary device while the
vehicle is in P (Park).

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Infotainment System 133
Connect a 3.5 mm (1/8 in) cable from the
auxiliary device to the auxiliary input jack.
When a device is connected, the system can
play audio from the device over the vehicle
speakers.
If an auxiliary device has already been
connected, but a different source is currently
active, touch More and then touch AUX to
make the source active.
Shuffle and Browse are not available in the
AUX source menu.
Bluetooth Audio
Music may be played from a paired
Bluetooth device. SeeBluetooth (Overview)
0 151 or
Bluetooth (Pairing and Using a Phone) 0152
for help pairing a device.
Volume and song selection may be
controlled by using the infotainment
controls or the mobile device. If Bluetooth is
selected and no sound is present, check the
volume setting on both your mobile device
and the infotainment system.
Launch music by touching Bluetooth from
the recent sources list on the left of the
display or by touching More and then
touching the Bluetooth device. To play music via Bluetooth:
1. Power on the device, and pair to connect the device.
2. Once paired, touch Audio from the Home Page, then touch Bluetooth from the
recent sources list on the left of the
display.
Bluetooth Sound Menu
See “Infotainment System Sound Menu”
under AM-FM Radio 0126.
Manage Bluetooth Devices
From the Home Page: 1. Touch the Audio icon.
2. Touch More.
3. Touch Bluetooth.
4. Touch Devices to add or delete devices.
When touching Bluetooth, the system may
not be able to launch the audio player on
the connected device to start playing. When
the vehicle is not moving, use the mobile
device to begin playback.
All devices launch audio differently. When
selecting Bluetooth as a source, the system
may show as paused on the display. Press
play on the device or touch
pon the
display to begin playback. Browse functionality will be provided where
supported by the Bluetooth device. This
media content will not be part of the
MyMedia source mode.
Some smartphones support sending
Bluetooth music information to display on
the system. When the system receives this
information, it will check to see if any is
available and display it. For more
information about supported Bluetooth
features, see my.chevrolet.com/learn.
OnStar System
4G LTE
If equipped with 4G LTE, up to seven
devices, such as smartphones, tablets, and
laptops, can be connected to high-speed
Internet through the vehicle’s built-in Wi-Fi
hotspot.
Call 1-888-4ONSTAR (1-888-466-7827) to
connect to an OnStar Advisor for assistance.
See www.onstar.com for vehicle availability,
details, and system limitations. Service and
connectivity may vary by make, model,
year, carrier, availability, and conditions. 4G
LTE service is available in select markets. 4G