2023 CHEVROLET TRAILBLAZER climate control

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
122 Infotainment System
Audio
Touch the Audio icon to display the active
audio source page. Examples of available
sources are AM, FM, SXM (if equipped), USB,
AUX, and Bluetooth.
Phone
Phone icon to display the Phone main page.
SeeBluetooth (Pairing and Using a Phone)
0 148 or
Bluetooth (Overview) 0147.
Nav
If equipped, touch the Nav icon to display
the embedded navigation map. See Using
the Navigation System 0131.
Wi-Fi
If equipped, touch the Wi–Fi icon to display
the Wi-Fi Hotspot menu.
Settings
Touch the Settings icon to display the
Settings menu. See Settings0153.
Apple CarPlay
Touch the Apple CarPlay icon to activate
Apple CarPlay if equipped, after a supported
device is connected. See Apple CarPlay and
Android Auto 0151.
Android Auto
Touch the Android Auto icon to activate
Android Auto if equipped, after a supported
device is connected. See Apple CarPlay and
Android Auto 0151.
OnStar Services
If equipped, touch the OnStar icon to display
the OnStar Services and Account pages.
Climate
If equipped, touch the Climate icon to
display the Climate main page.
Camera
If equipped, touch the Camera icon to access
the camera application.
SiriusXM
If equipped, touch the SiriusXM icon to
display the SiriusXM radio service.
Shortcut Tray
The shortcut tray is near the bottom of the
display. It shows up to four applications.
Infotainment Display Features
Infotainment display features show on the
display when available. When a feature is
unavailable, it may gray out. When a
feature is touched, it may highlight.
Infotainment Gestures
Use the following finger gestures to control
the infotainment system.
Touch/Tap
Touch/Tap is used to select an icon or
option, activate an application, or change
the location inside a map.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Infotainment System 155
Return to Factory Settings
Allows resetting the infotainment system
settings in the vehicle.
Apps
The menu may contain the following:
Android Auto
Allows interacting directly with a mobile
device on the infotainment display. See
Apple CarPlay and Android Auto0151.
Apple CarPlay
This feature allows you to interact directly
with your mobile device on the infotainment
display. See Apple CarPlay and Android Auto
0 151.
Apps
Shows app settings and information.
Audio
Adjusts different audio settings.
Climate
Adjusts different climate settings.
Navigation
Adjusts different navigation settings.
See Using the Navigation System 0131. Phone
Adjusts different phone settings.
Vehicle
The menu may contain the following:
Rear Seat Reminder
Allows for a chime and a message when the
rear door has been opened before or during
operation of the vehicle.
Climate and Air Quality
Adjusts different climate settings.
Collision/Detection Systems
Adjusts different driver assistance system
settings.
Comfort and Convenience
Adjusts different comfort and convenience
settings.
Lighting
Adjusts different lighting settings.
Power Door Locks
Adjusts different door lock settings.
Remote Lock, Unlock, and Start
Adjusts different remote lock settings.
Seating Position
Adjusts different seat settings.
Teen Driver
See
Teen Driver 0156.
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. Select 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.
Personal
If equipped, this menu allows adjustment of
different user profile settings. See “Users”in
Using the System 0121 for information on
setting up user profiles.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Climate Controls 167
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . . . . . . . . . . 167
Automatic Climate Control System . . . . 169
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Maintenance
Passenger Compartment Air Filter . . . . . 172
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Climate Control Systems

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
168 Climate Controls
The heating, cooling, and ventilation for the
vehicle can be controlled with this system.1. Temperature Control
2. Air Delivery Mode Controls
3. MAX Defrost
4. Rear Window Defogger
5. Fan Control
6. Driver and Passenger Heated Seats (If Equipped)
7. Recirculation
8. A/C (Air Conditioning)
]: Turn the knob clockwise or
counterclockwise to increase or decrease the
fan speed or turn the fan off.
Temperature Control : Turn the knob
clockwise or counterclockwise to increase or
decrease the temperature. Air Delivery Mode Controls :
Press
z,Y,
or
6to change the direction of the airflow.
The indicator light in the button will turn
on. Any combination of the three buttons
can be selected. The indicator light in the
button will turn on.
To change the current mode, select one or
more of the following:
z: Clears the windows of fog or moisture.
Air is directed to the windshield.
Y: Air is directed to the instrument panel
outlets.
6: Air is directed to the floor outlets.
0MAX : Air is directed to the windshield
and the fan runs at a higher speed. Fog or
frost is cleared from the windshield more
quickly. When the button is pressed again,
the system returns to the previous mode
setting.
For best results, clear all snow and ice from
the windshield before defrosting. A/C :
Press to turn the air conditioning
system on or off. If the climate control
system is turned off or the outside
temperature falls below freezing, the air
conditioner will not run.
@: Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle or
to reduce the entry of outside air and odors.
Rear Window Defogger
K: Press to turn the rear window defogger
on or off. An indicator light on the button
comes on to show that the rear window
defogger is on.
The defogger can be turned off by turning
the vehicle off or to accessory mode.
If the vehicle is equipped with heated
outside mirrors, they turn on when the rear
window defogger button is on and help to
clear fog or frost from the surface of the
mirror.
See Heated Mirrors 032.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Climate Controls 169
Caution
Do not try to clear frost or other material
from the inside of the front windshield
and rear window with a razor blade or
anything else that is sharp. This may
damage the rear window defogger grid
and affect the radio's ability to pick up
stations clearly. The repairs would not be
covered by the vehicle warranty.
MorL:If equipped, pressMorLto
heat the driver or passenger seat. See
Heated Front Seats 041.
Afterblow Feature
If equipped, under certain conditions, the
fan may stay on or may turn on and off
several times after you turn off and lock the
vehicle. This is normal.
Automatic Climate Control System
The heating, cooling, and ventilation for the
vehicle can be controlled with this system. 1. AUTO (Automatic Operation)
2. ON/OFF (Power)
3. MAX Defrost
4. Rear Window Defogger
5. Recirculation 6. Fan Controls
7. Driver and Passenger Heated Seats (If
Equipped)
8. Air Delivery Mode Controls
9. A/C (Air Conditioning)
10. Temperature Controls

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
170 Climate Controls
Automatic Operation
The system automatically controls the fan
speed, air delivery, air conditioning, and
recirculation in order to heat or cool the
vehicle to the desired temperature.
When AUTO is lit, all four functions operate
automatically. Each function can also be
manually set and the selected setting is
displayed.
Functions not manually set will continue to
be automatically controlled, even if the
AUTO indicator is not lit.
For automatic operation:1. Press AUTO.
2. Set the temperature, allow the system time to stabilize, and adjust the
temperature as needed.
Manual Operation
In addition to the controls on the center
stack; the fan, air delivery mode,
temperature, and other climate settings can
be controlled by touching CLIMATE on the
infotainment Home Page or the climate
button in the application tray. ON/OFF :
Press to turn the fan off or on.
When off, no air will flow into the vehicle.
Turning the fan on, pressing any other
button, or turning a knob will turn the
system back on using the current setting.
9: Turn the knob clockwise or
counterclockwise to increase or decrease the
fan speed. The fan speed setting appears on
the main display. Pressing either button
cancels automatic fan control and the fan is
controlled manually. Press AUTO to return
to automatic operation.
Air Delivery Mode Controls : Press any
combination of
z,Y, or6to change the
direction of the airflow. The indicator light
in the button will turn on. The current mode
appears in the display screen.
Pressing any of the three buttons cancels
automatic air delivery control and the
direction of the airflow is controlled
manually. Press AUTO to return to
automatic operation.
To change the current mode, select one or
more of the following:
z: Clears the windows of fog or moisture.
Air is directed to the windshield.
Y: Air is directed to the instrument panel
outlets.
6: Air is directed to the floor outlets.
0MAX : Air is directed to the windshield
and the fan runs at a higher speed. Fog or
frost is cleared from the windshield more
quickly. When the button is pressed again,
the system returns to the previous mode
setting.
For best results, clear all snow and ice from
the windshield before defrosting.
A/C : Press to turn the air conditioning
system on or off. If the climate control
system is turned off or the outside
temperature falls below freezing, the air
conditioner will not run.
Pressing A/C cancels automatic air
conditioning and turns off the air
conditioner. Press AUTO to return to
automatic operation and the air conditioner
runs automatically as needed. When the
indicator light is on, the air conditioner runs
automatically to cool the air inside the
vehicle or to dry the air needed to defog
the windshield faster.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Climate Controls 171
@:Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle or
to reduce the entry of outside air and odors.
Auto Defog : The climate control system
may have a sensor to automatically detect
high humidity inside the vehicle. When high
humidity is detected, the climate control
system may adjust to outside air supply and
turn on the air conditioner. The fan speed
may slightly increase to help prevent
fogging. If the climate control system does
not detect possible window fogging, it
returns to normal operation.
To turn Auto Defog off or on, select
Settings > Climate and Air Quality > Auto
Defog > Select ON or OFF.
Rear Window Defogger
K: Press to turn the rear window defogger
on or off. An indicator light on the button
comes on to show that the rear window
defogger is on. The defogger only works
when the vehicle is on.
The defogger can be turned off by turning
the vehicle off or to accessory mode. To turn Auto Rear Defog off or on, select
Settings > Climate and Air Quality > Auto
Rear Defog > Select ON or OFF.
When auto rear defog is selected, the rear
window defogger turns on automatically
when the interior temperature is cold and
the outside temperature is about 5 °C (41 °F)
and below. The Auto Rear Defogger turns off
automatically.
If the vehicle is equipped with heated
outside mirrors, they turn on when the rear
window defogger button is on and help to
clear fog or frost from the surface of the
mirror. See
Heated Mirrors 032
Caution
Do not try to clear frost or other material
from the inside of the front windshield
and rear window with a razor blade or
anything else that is sharp. This may
damage the rear window defogger grid
and affect the radio's ability to pick up
stations clearly. The repairs would not be
covered by the vehicle warranty.
MorL:If equipped, pressMorLto
heat the driver or passenger seat. See
Heated Front Seats 041. Remote Start Climate Control Operation (If
Equipped) :
If the vehicle is equipped with
the remote start feature, the climate control
system may run when the vehicle is started
remotely. The system uses the driver’s
previous settings to heat or cool the inside
of the vehicle. The rear defog may come on
during remote start based on cold ambient
conditions. If the vehicle has heated seats,
they may come on during a remote start.
See Remote Vehicle Start 019 and
Heated Front Seats 041.
Sensors
The solar sensor on top of the instrument
panel near the windshield monitors the solar
heat. The climate control system uses the
sensor information to adjust the
temperature, fan speed, recirculation, and air
delivery mode for best comfort.
Do not cover the sensor; otherwise the
automatic climate control system may not
work properly.
Afterblow Feature
If equipped, under certain conditions, the
fan may stay on or may turn on and off
several times after you turn off and lock the
vehicle. This is normal.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
172 Climate Controls
Air Vents
Use the louvers located on the air vents to
change the direction of the airflow.
To open or close off the airflow:
.Move slider knobs away from the
occupant for shut off closing.
Operation Tips
.Clear away any ice, snow, or leaves from
air inlets at the base of the windshield
that could block the flow of air into the
vehicle.
.Clear snow off the hood to improve
visibility and help decrease moisture
drawn into the vehicle, which may
improve long term system performance.
.Keep the path under the front seats clear
of objects to help circulate the air inside
of the vehicle more effectively.
.Use of non-GM approved hood deflectors
can adversely affect the performance of
the system. Check with your dealer
before adding equipment to the outside
of the vehicle.
.Do not attach any devices to the air vent
slats. This restricts airflow and may cause
damage to the air vents.
Caution
Use of air fresheners may cause
permanent damage to plastics and
painted surfaces. If an air freshener
comes in contact with any plastic or
painted surface in the vehicle, blot
immediately and clean with a soft cloth
dampened with a mild soap solution.
Damage caused by air fresheners would
not be covered by the vehicle warranty.
Maintenance
Passenger Compartment Air Filter
The filter reduces dust, pollen, and other
airborne irritants from outside air that is
pulled into the vehicle. The filter should be
replaced as part of routine scheduled
maintenance.
SeeMaintenance Schedule 0315.
See your dealer regarding replacement of
the filter.
Service
All vehicles have a label underhood that
identifies the refrigerant used in the vehicle.
The refrigerant system should only be serviced by trained and certified technicians.
The air conditioning evaporator should never
be repaired or replaced by one from a
salvage vehicle. It should only be replaced
by a new evaporator to ensure proper and
safe operation.
During service, all refrigerants should be
reclaimed with proper equipment. Venting
refrigerants directly to the atmosphere is
harmful to the environment and may also
create unsafe conditions based on
inhalation, combustion, frostbite, or other
health-based concerns.
The air conditioning system requires periodic
maintenance. See
Maintenance Schedule
0 315.
Caution
Damage caused by improper refrigerant
usage could lead to costly repairs and
may not be covered by the vehicle
warranty. Refrigerant systems should
only be serviced by qualified personnel.
Always use the correct refrigerant.