2022 GMC SIERRA air conditioning

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
2 Introduction
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
Using this Manual
To quickly locate information about the
vehicle, use the Index in the back of the
manual. It is an alphabetical list of what is
in the manual and the page number where
it can be found.
Danger, Warning, and Caution
Warning messages found on vehicle labels
and in this manual describe hazards and
what to do to avoid or reduce them.
{Danger
Danger indicates a hazard with a high
level of risk which will result in serious
injury or death.
{Warning
Warning indicates a hazard that could
result in injury or death.
Caution
Caution indicates a hazard that could
result in property or vehicle damage.
A circle with a slash through it is a safety
symbol which means“Do not,” “Do not do
this,” or“Do not let this happen.”
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M:Shown when the owner’s manual has
additional instructions or information.
*: Shown when the service manual has
additional instructions or information.
0: Shown when there is more information
on another page — “see page.” Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features in this manual for
information.
u:
Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components Properly
P:Do Not Apply High Pressure Water
B:Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable
[:Forward Collision Alert
R:Fuse Block Cover Lock Location
+:Fuses
j:ISOFIX/LATCH System Child Restraints

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Infotainment System 173
Helpful Hints for Speaking Commands
Voice recognition identifies commands that
are naturally stated in sentence form,
or direct commands that state the
application and the task.
For best results:
.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.
Direct commands are more clearly
understood by the system. An example of a
direct command is “Dial .”
If a cell phone number was saved with a
name and a place, the direct command
should include both. For example “Call
at work.”
Voice Recognition for the Radio
If browsing the audio sources when voice is
touched, the voice recognition commands
for AM, FM, and SiriusXM (if equipped) are
available. “Play AM”
:Tune to the
radio station frequency identified in the
command (like “nine fifty”).
“Play FM” :Tune to the
radio station frequency identified in the
command (like “one oh one point one”).
“Play channel on
SiriusXM” :Tune to the SiriusXM radio
station channel number identified in the
command. This command may require an
online connection.
“Play on Sirius XM” :
Tune to the SiriusXM radio station channel
name identified in the command. This
command may require an online connection.
Voice Recognition for the Phone
Make sure the phone is paired using
Bluetooth to use the phone related voice
commands.
“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 < phone number>” :Initiate a call to a
phone number of seven digits or 10 digits.
“Redial” :Initiate a call to the last dialed
number.
Voice Recognition for Navigation
Navigation commands can be used to start,
cancel route, or add way points/POI.
“Navigate to ” :
Initiate navigation to the address in the
command.
“Add on my way” :Adds a
way-point to the current route.
“Take me home” :Starts navigation to
Home location set in Google maps.
Onboard Vehicle Commands
These commands can be used to adjust
vehicle temperature, control window
defrosters and obtain fuel information.
“Turn on the A/C” :Turns on the air
conditioning.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
196 Climate Controls
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . . . . . . . . . 196
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Maintenance
Passenger Compartment Air Filter . . . . . 202
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Climate Control Systems
The heating, cooling, and ventilation in the vehicle can be controlled with this system.
Work Truck/Custom
1. Fan Control/Power Button
2. MAX Defrost
3. Air Delivery Mode Controls
4. A/C (Air Conditioning) 5. TEMP (Temperature Control)
6. Recirculation
7. Rear Window Defogger (If Equipped) or
Heated Mirrors (If Equipped)

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Climate Controls 197
Other Models
1. Fan Control
2. Air Delivery Mode Controls
3. TEMP (Temperature Control)
4. Recirculation
5. A/C (Air Conditioning)
6. Power Button
7. MAX Defrost
8. Rear Window Defogger (If Equipped) or Heated Mirrors (If Equipped)
9:Turn clockwise or counterclockwise to
increase or decrease the fan speed. On some
models, press the fan control to turn the
climate control system on or off. TEMP :
Turn clockwise or counterclockwise
to increase or decrease the temperature
inside the vehicle.
Air Delivery Mode Controls : Press
z,Y,
or
[to change the direction of the
airflow. Any combination of the three
controls can be selected. An indicator light
comes on in the selected mode button.
To change the current mode, select one or
more of the following. An indicator light will
illuminate:
z: Air is directed to the windshield,
outboard a/c outlets, and side window
outlets.
Y: Air is directed to the a/c outlets.
[:Air is directed to the floor outlets,
with some air directed to the windshield,
outboard a/c outlets, and side window
outlets.
0MAX : Air is directed to the windshield
and the fan runs at a higher speed if not
already above a medium fan speed. This
mode overrides the previous mode selected
and clears fog or frost from the windshield
more quickly. When the control is pressed
again, the system returns to the previous
mode setting and fan speed.
For best results, clear all snow and ice from
the windshield before defrosting.
@: Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle.
It can also be used to help reduce outside
air and odors that enter the vehicle.
Avoid using recirculation for long periods of
time in cold or damp conditions. Using
recirculation in cold or damp conditions can
result in window fogging.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
198 Climate Controls
A/C :Press to turn the air conditioning on
or off. An indicator light comes on to show
that the air conditioning is enabled. If the
fan is turned off, the air conditioner will not
run. The A/C light will stay on even if the
outside temperatures are below freezing.
Rear Window Defogger
1REAR : If equipped, 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 rear window defogger only works when
the engine is running. The defogger turns
off if the vehicle is turned off or to ACC/
ACCESSORY.
If equipped with heated outside mirrors,
press
fto turn them on or off. See Heated
Mirrors 036.
Caution
Using a razor blade or sharp object to
clear the inside rear window can damage
the rear window defogger. Repairs would
not be covered by the vehicle warranty.
Do not clear the inside rear window with
sharp objects.
Dual Automatic Climate Control System
The heating, cooling, and ventilation in the vehicle can be controlled with this system.
1. Driver and Passenger Temperature
Controls
2. AUTO (Automatic Operation)
3. Air Delivery Mode Controls
4. SYNC (Synchronized Temperature)
5. Recirculation
6. A/C (Air Conditioning) 7. Fan Control
8. ON/OFF
9. MAX Defrost
10. Rear Window Defogger (If Equipped) or Heated Mirrors (If Equipped)

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Climate Controls 199
Front Climate Control Display
Uplevel Shown
1. Driver and Passenger Temperature Settings
2. Fan Control
3. Driver and Passenger Temperature Controls
4. Recirculation
5. A/C (Air Conditioning)
6. Sync (Synchronized Temperature)
7. Auto (Automatic Operation)
8. Air Delivery Mode Controls
9. Power (On/Off) The fan, air delivery mode, air conditioning,
driver and passenger temperatures, and Sync
settings can be controlled by touching
CLIMATE on the infotainment Home Page or
the climate button in the climate control
display application tray. A selection can then
be made on the front climate control page
displayed.
Climate Control Status Display
The climate control status display appears
briefly when the center stack climate
controls are adjusted.
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. Adjust the temperature
as needed for best comfort.
To improve fuel efficiency and to cool the
vehicle faster, recirculation may be
automatically selected in warm weather.
The recirculation light will not come on
when automatically controlled. See@
under “Manual Operation” for more details.
Manual Operation
9:Press to increase or decrease the fan
speed. Toggle all the way down to turn the
fan off. When OFF is selected, a small

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
200 Climate Controls
amount of air may still come out of the
outlets depending on vehicle speed. If any
buttons are pressed or knobs are turned, the
climate control system will turn on and
operate at the current setting.
Press AUTO to return to automatic
operation.
Driver and Passenger Temperature Control :
The temperature can be adjusted separately
for the driver and passenger.
Turn the knob clockwise or counterclockwise
to increase or decrease the driver or
passenger temperature setting. The driver
side or passenger side temperature display
shows the temperature setting increasing or
decreasing.
SYNC :Press to link the passenger
temperature setting to the driver setting.
The SYNC indicator light will turn on. When
the passenger setting is adjusted, the SYNC
indicator light will turn off.
Air Delivery Mode Control : Press
z,Y,
or
[to change the direction of the
airflow. Any combination of the three
controls can be selected. An indicator light
comes on in the selected mode button. Changing the mode cancels the automatic
operation and the system goes into manual
mode. Press AUTO to return to automatic
operation.
To change the current mode, select one or
more of the following:
z:
Air is directed to the windshield,
outboard A/C outlets, and side window
outlets.
Y: Air is directed to the A/C outlets.
[:Air is directed to the floor outlets,
with some air directed to the windshield,
outboard A/C outlets, and side window
outlets.
0MAX : Air is directed to the windshield
and the fan runs at a higher speed if not
already above a medium fan speed. This
mode overrides the previous mode selected
and clears fog or frost from the windshield
more quickly. When the control is pressed
again, the system returns to the previous
mode setting and fan speed.
For best results, clear all snow and ice from
the windshield before defrosting.
@: Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle.
It can also be used to help reduce outside
air and odors that enter the vehicle.
Avoid using recirculation for long periods of
time in cold or damp conditions. Using
recirculation in cold or damp conditions can
result in window fogging.
A/C : Press to turn the air conditioning on
or off. An indicator light comes on to show
that the air conditioning is enabled. If the
fan is turned off, the air conditioner will not
run. The A/C light will stay on even if the
outside temperatures are below freezing.
Rear Window Defogger
1REAR : If equipped, 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 rear window defogger only works when
the engine is running. The defogger turns
off if the vehicle is turned off or to ACC/
ACCESSORY.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Climate Controls 203
4. Pull lever on left side of the filter doorand slide left, then remove the door.
Remove the old filter.
5. Install the new air filter.
6. Reinstall the filter door.
7. Reverse the steps to reinstall the glove box.
See your dealer if additional assistance is
needed.
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
0 425.