2020 BUICK ENCLAVE air conditioning

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Introduction 3
{ DangerDanger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{ WarningWarning indicates a hazard that
could result in injury or death.
CautionCaution 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

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Climate Controls 1578. Rear Window Defogger and
Heated Outside Mirrors (If
Equipped)
9. ON/OFF (Power)
10. AUTO (Automatic Operation)
Climate Control Display
1. Driver and Passenger
Temperature Controls
2. Fan Control
3. Sync (Synchronized
Temperature)
4. Outside Temperature Display
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
display Home Page or the climate
button in the application tray display.
A selection can then be made on
the front climate control page
displayed. See the infotainment
manual. Climate Control Status Display
The climate control status display
appears briefly when the climate
controls on the center stack are
adjusted. The air delivery mode can
be adjusted on the climate control
display.
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.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Climate Controls 159
1 MAX : Air is directed to the
windshield, the fan runs at a higher
speed, and the temperature of the
air is increased if not already at
maximum. This mode overrides the
previous mode selected and clears
fog or frost from the windshield
more quickly. When
1 MAX 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.
A/C : Touch A/C on the display to
turn the air conditioning on or off.
If the fan is turned off, the air
conditioner will not run and A/C OFF
will show on the climate control
display.
Touch AUTO to return to automatic
operation and the air conditioner
runs automatically as needed. @ : 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.
If selected during cool or cold
weather, the windshield and
windows may fog. Turn off
recirculation to help clear the
windshield and windows.
Auto Defog : The climate control
system has 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, see
“ Climate and Air Quality ” under
Vehicle Personalization 0 137 . Ionizer : If equipped with an ionizer,
this feature helps to clean the air
inside the vehicle and remove
contaminants such as pollen, odors,
and dust. If the climate control
system is on and the ionizer is
enabled, Ionizer On will be
displayed. To turn the ionizer on or
off, see “ Climate and Air Quality ”
under Vehicle Personalization
0 137 .
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
rear window defogger only works
when the engine is running. It turns
off when the ignition is turned off or
in ACC/ACCESSORY.
The rear window defogger can be
set to automatic operation. See
“ Climate and Air Quality ” under
Vehicle Personalization 0 137 .
When Auto Rear Defog is selected,
the rear window defogger turns on
automatically when the interior
temperature is cold and the outside

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Climate Controls 163
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.
See Maintenance Schedule 0 328 .
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 0 328 .

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Vehicle Care 263Warning (Continued)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, 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
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See Engine
Compartment Overview 0 252 for
reservoir location.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Vehicle Care 275Fuses Usage
F2 Starter 1
F3 DC DC
transformer 1
F4 –
F5 DC DC
transformer 2
F6 –
F7 –
F8 –
F9 Vacuum pump
F10 Front wiper
F11 –
F12 –
F13 Starter 2
F14 –
F15 Rear wiper
F16 –
F17 –
F18 –
F19 – Fuses Usage
F20 –
F21 –
F22 Electronic brake
control module
F23 Parking/Trailer
lamps
F24 Right trailer
stoplamp/Turnlamp
F25 Steering
column lock
F26 –
F27 Left trailer
stoplamp/Turnlamp
F28 –
F29 –
F30 Washer pump
F31 –
F32 Left low-beam
headlamp
F33 Front fog lamps
F34 Horn
F35 – Fuses Usage
F36 –
F37 Right low-beam
headlamp
F38 Automatic
headlamp leveling
motor
F39 Transmission
control module
F40 Left rear bus
electrical center/
Ignition
F41 Instrument cluster
F42 Heating,
ventilation, and air
conditioning
F43 Head-up display
F44 Communication
gateway module/
Run/Crank
F45 –
F46 –
F47 –
F48 –

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
276 Vehicle Care Fuses Usage
F49 Interior rearview
mirror
F50 Fuel system control
module
F51 Heated steering
wheel
F52 Folding seats
switch
F53 –
F54 Coolant pump
F55 Air conditioning
clutch
F56 Integrated chassis
control module
F57 Engine control
module/Ignition
F58 Transmission
control module/
Ignition
F59 Engine control
module battery
F60 Engine control
module – even Fuses Usage
F61 O2 sensor 1/
Air flow
F62 –
F63 O2 sensor 2/
Canister/Engine oil/
Turbo
F64 Aeroshutter
F65 Engine control
module
powertrain 1
F66 Engine control
module
powertrain 2
F67 Engine control
module – odd
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 – Fuses Usage
F75 –
F76 –
F77 –
Relays Usage
K1 Starter 1
K2 Run/Crank
K3 Vacuum pump
K4 –
K5 Air conditioning
K6 Coolant pump
K7 Engine control
module
K8 Folding seats
K9 –
K10 Starter 2

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Vehicle Care 277
Instrument Panel Fuse
Block
The instrument panel fuse block is
inside the center console on the
passenger side of the vehicle.
Remove the fuse access door by
pulling the door at the opening.
To remove a fuse, use the fuse
puller in the engine compartment
fuse block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Fuses Usage
F1 Body control module 6
F2 Diagnostic link
F3 Electric steering
column lock
F4 Rear USB port
F5 –
F6 Heating, ventilation,
and air conditioning
F7 Body control module 3
F8 –
F9 Right front
heated seat
F10 Airbag
F11 Electronic precision
shift
F12 Amplifier
F13 Body control module 7
F14 Left front heated seat
F15 –
F16 Sunroof