air conditioning BUICK ENVISION 2022 Owners Manual

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
2 Introduction
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.
About Driving the Vehicle
As with other vehicles of this type, failure to
operate this vehicle correctly may result in
loss of control or a crash. Be sure to read
the driving guidelines in this manual in the
section called“Driving and Operating” and
specifically Driver Behavior 0189, Driving
Environment 0189, and Vehicle Design
0 189.
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

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
180 Climate Controls
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . . . . . . . . . 180
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Maintenance
Passenger Compartment Air Filter . . . . . 187
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Climate Control Systems
The heating, cooling, and ventilation for the vehicle can be controlled with this system.
1. Fan Control
2. Recirculation
3. A/C (Air Conditioning)
4. ON/OFF 5. Defrost
6. Rear Window Defogger
7. TEMP (Temperature Control)
8. Air Delivery Mode Controls

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
Climate Controls 181
Manual Operation
ON/OFF :Press to turn the system off or
on. When off is selected, the system will
prevent outside air from entering the
vehicle. Pressing most climate control
buttons will turn the system on.
]: Turn the knob clockwise or
counterclockwise to increase or decrease the
fan speed.
TEMP : Turn the knob clockwise or
counterclockwise to increase or decrease the
temperature.
Air Delivery Mode Controls : Press
z,Y,
or
[to 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 current mode
appears in the display.
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.
[: Air is directed to the floor outlets.
0FRONT : Clears the windshield of fog or
frost more quickly. Air is directed to the
windshield.
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
prevent outside air and odors from entering.
Climate Control Status Display
The climate control status display appears
briefly when the center stack climate
controls are adjusted.
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 ignition to off or ACC/ACCESSORY.
If 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 026.
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.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
182 Climate Controls
Remote Start Climate Control Operation
If equipped with remote start, the climate
control system may run when the vehicle is
started remotely. If equipped with heated or
ventilated seats or a heated steering wheel,
these features may come on during a
remote start. SeeRemote Vehicle Start 012,
Heated and Ventilated Front Seats 039, and
Heated Steering Wheel 083.
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.Dual Automatic Climate Control System
The heating, cooling, and ventilation for the vehicle can be controlled with this system.
1. Recirculation
2. AUTO (Automatic Operation)
3. ON/OFF
4. CLIMATE
5. Defrost
6. Rear Window Defogger
7. A/C (Air Conditioning) 8. Driver and Passenger Heated and
Ventilated Seats (If Equipped)
9. Passenger Temperature Controls
10. Fan Control
11. Driver Temperature Controls
12. SYNC (Synchronized Temperature)

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
Climate Controls 183
Climate Control Display
1. Driver and Passenger TemperatureDisplays
2. Fan Control
3. Driver and Passenger Temperature Controls
4. Sync (Synchronized Temperature)
5. Recirculation
6. Air Delivery Mode Control
7. Auto (Automatic Operation)
8. A/C (Air Conditioning)
9. On/Off (Power) 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 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 pressed, 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.
During hands free calling the blower level
may automatically reduce. The blower level
can be manually adjusted if desired.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
184 Climate Controls
Manual Operation
ON/OFF :Press to turn the system off or
on. When off is selected, the system will
prevent outside air from entering the
vehicle. If any climate control buttons are
pressed, the system will turn on and
operate at the current setting.
Q^or^ R:Lift or press to increase or
decrease the fan speed. The fan speed
setting appears on the main display. Lifting
or pressing either button cancels automatic
fan control and the fan is controlled
manually. Press AUTO to return to
automatic operation.
Q/R: The temperature can be adjusted
separately for the driver and the passenger.
Lift or press to increase or decrease the
temperature.
SYNC : Press to link the passenger
temperature settings to the driver setting.
The SYNC indicator light will turn on. When
the passenger settings are adjusted, the
SYNC indicator light turns off.
Air Delivery Mode Controls : In the climate
control display, press
z,Y, or[to
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 current mode appears in
the display. 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.
[: 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 this button 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.
@:
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.
xory: Liftxoryfor the highest
heated seat setting. Lifting the heated seat
button again will keep the heated seat at
the highest setting. Press the heated seat
button down to lower the heat level or turn
the heated seat off.
Press
xory, if available, for the highest
ventilated seat setting. Pressing the
ventilated seat button again will keep the
ventilated seat at the highest setting. Lift
the ventilated seat button to lower the vent
level or turn the ventilated seat off. See
Heated and Ventilated Front Seats 039.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
Climate Controls 187
.Use of non-GM approved hood deflectors
can adversely affect the performance of
the system.
Maintenance
Passenger Compartment Air Filter
The filter removes 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. To find out
what type of filter to use, seeMaintenance
Replacement Parts 0330.
1. Open the glove box.
2. Squeeze both sides of the glove box bin inward to lower beyond the stops.
3. Release the latches on either side of theservice door. Open the service door and
remove the old filter.
4. Install the new air filter. Ensure air filter orientation is correct.
5. Close the service door completely.
6. 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 your dealer for service.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
Vehicle Care 269
3. If topping off the level in the coolantsurge tank, add the proper mixture until
the level reaches the mark on the front
of the tank and replace the cap. Operate
the vehicle. Repeat steps 1–3, as
necessary.
If filling the system (such as after
servicing), follow the Automatic Coolant
Service Fill Instructions.
Caution
If the pressure cap is not tightly installed,
coolant loss and engine damage may
occur. Be sure the cap is properly and
tightly secured.
Automatic Coolant Service Fill
Instructions
This feature assists in filling and removing
air from the cooling system after service of
components or when coolant is added after
being too low. To activate the fill and air removal process:
1. With a cold system, add coolant to the
indicated mark on the surge tank.
2. Replace the cap on the surge tank.
3. Connect the vehicle to a battery charger.
4. Press and hold the Engine Start/Stop button for more than five seconds.
5. Turn off the air conditioning.
6. Set the parking brake.
7. At the same time, press the accelerator and the brake for automatic transmission
vehicles for two seconds, then release.
At the end of the cycle, check the coolant
level in the surge tank and add coolant if it
is low. Turn off the vehicle, allow the Electronic Control Module (ECM) to go to
sleep, about two minutes, and repeat
Steps 3-7.
Listen for pump activation and movement of
the control valves while watching the level
of the coolant in the surge tank. If the tank
empties, turn the ignition off, carefully
remove the surge tank cap, refill to the
indicated mark, and repeat Steps 3-6. The fill
and air removal process will run for
approximately 10 minutes.
Engine Overheating
The vehicle has several indicators to warn of
the engine overheating.
There is an engine coolant temperature
gauge and an engine coolant temperature
warning light on the instrument cluster. See
Engine Coolant Temperature Gauge
094.
The vehicle may also display a message on
the Driver Information Center (DIC).
If the decision is made not to lift the hood
when this warning appears, get service help
right away.
If the decision is made to lift the hood,
make sure the vehicle is parked on a level
surface. Then check to see if the engine
cooling fan is running. If the engine is

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
270 Vehicle Care
overheating, the fan should be running. If it
is not, do not continue to run the engine.
Have the vehicle serviced.
Caution
Do not run the engine if there is a leak
in the engine cooling system. This can
cause a loss of all coolant and can
damage the system and vehicle. Have
any leaks fixed right away.
If Steam Is Coming from the Engine
Compartment
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to cool.
If No Steam Is Coming from the Engine
Compartment
If an engine overheat warning is displayed
but no steam can be seen or heard, the
problem may not be too serious. Sometimes
the engine can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.
If the overheat warning is displayed with no
sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest fan
speed. Open the windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or N (Neutral), and
let the engine idle.
If the engine coolant temperature gauge is
no longer in the overheated area or the
engine coolant temperature warning light no
longer displays, the vehicle can be driven.
Continue to drive the vehicle slowly for
about 10 minutes. Keep a safe distance from
the vehicle in front. If the warning does not come back on, continue to drive normally
and have the cooling system checked for
proper fill and function.
If the warning continues, pull over, stop, and
park the vehicle right away.
If there is no sign of steam, idle the engine
for three minutes while parked. If the
warning is still displayed, turn off the
engine until it cools down.Washer Fluid
What to Use
When windshield washer fluid is needed, be
sure to read the manufacturer's instructions
before use. If operating the vehicle in an
area where the temperature may fall below
freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
The appropriate message will appear in the
Driver Information Center (DIC) when the
fluid level is low.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15218978) - 2022 - CRC - 5/12/21
280 Vehicle Care
FusesUsage
F23 ELM 6 –Exterior Lighting
Module 6
F24 –
F26 TCM –Transmission
Control Module
F27 RFA –Remote Function
Actuator
F28 –
F29 ELM 4 –Exterior Lighting
Module 4
F30 MSM DRVR –Driver
Memory Seat Module
F32 HDLP RT –Right
Headlamp
F33 FRT HTD/SEAT –Front
Heated Seats
F34 REAR HTD/SEAT –Rear
Heated Seats
F35 DR SW/ST POS DRVR/ PASS SW–Door Switch
Panel/Seat Position Driver
and Passenger Switch
F36 FTZM –Fuel Tank Zone
Module Fuses
Usage
F39 HANDSFREE CLOSURE MDL –Handsfree Closure
Module
F40 HDLP LT –Left Headlamp
F41 SPARE
F44 REAR/WPR –Rear Wiper
F48 BLWR MTR –Blower
Motor
F49 –
F50 SPARE F51 SPARE
F52 –
F54 SPARE F55 SPARE
F56 STRTR MTR –Starter
Motor
F57 DRVR PWR SEAT/MSM –
Driver Power Seat/
Memory Seat Module
F58 RDCM –Rear Drive
Control Module
F59 – Fuses
Usage
F60 –
F61 SPARE
F62 SPARE
F63 SPARE
F65 A/C CNTRL –Air
Conditioning Control
F67 SPARE
F68 SPARE
F69 –
F70 –
F72 STRTR PINION –Starter
Pinion
F74 –
F75 ECM IGN 1 –Engine
Control Module Ignition 1
F76 ECM IGN 2 –Engine
Control Module Ignition 2
F78 Horn
F79 WASH PUMP –
Washer Pump
F81 –