check oil BUICK ENCLAVE 2021 Owners Manual

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
86 Instruments and Controls
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 87
Steering Wheel Controls . . . . . . . . . . . . . . . . 87
Heated Steering Wheel . . . . . . . . . . . . . . . . . 87
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Windshield Wiper/Washer . . . . . . . . . . . . . 88
Rear Window Wiper/Washer . . . . . . . . . . . 89
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 91
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Instrument Cluster (Base Level) . . . . . . . . 94
Instrument Cluster (Uplevel) . . . . . . . . . . . 96
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 98
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Engine Oil Temperature Gauge (Uplevel only) . . . . . . . . . . . . . . . . . . . . . . . . 99
Engine Coolant Temperature Gauge . . . . 99
Voltmeter Gauge (Uplevel only) . . . . . . . . 99
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 100
Airbag Readiness Light . . . . . . . . . . . . . . . . 100 Passenger Airbag Status Indicator . . . . . . 101
Charging System Light . . . . . . . . . . . . . . . . 102
Malfunction Indicator Lamp (Check
Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . 102
Brake System Warning Light . . . . . . . . . . 103
Electric Parking Brake Light . . . . . . . . . . . . 104
Service Electric Parking Brake Light . . . . 104
Antilock Brake System (ABS) Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Sport Mode Light . . . . . . . . . . . . . . . . . . . . . . 105
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . 105
Lane Keep Assist (LKA) Light . . . . . . . . . . . 105
Vehicle Ahead Indicator . . . . . . . . . . . . . . . 105
Pedestrian Ahead Indicator . . . . . . . . . . . . 105
Traction Off Light . . . . . . . . . . . . . . . . . . . . . 106
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . 106
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . 106
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . 107
Engine Oil Pressure Light . . . . . . . . . . . . . . 107
Low Fuel Warning Light . . . . . . . . . . . . . . . 107
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . 108
High-Beam On Light . . . . . . . . . . . . . . . . . . . 108
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 108
Cruise Control Light . . . . . . . . . . . . . . . . . . . 108
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . 109
Information Displays
Driver Information Center (DIC) (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Driver Information Center (DIC)
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . 113
Engine Power Messages . . . . . . . . . . . . . . . 114
Vehicle Speed Messages . . . . . . . . . . . . . . . 114
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 114
Universal Remote System
Universal Remote System . . . . . . . . . . . . . . 118
Universal Remote SystemProgramming . . . . . . . . . . . . . . . . . . . . . . . . 119
Universal Remote System Operation . . . 120

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Instruments and Controls 107
Tire Pressure Light
For vehicles with the Tire Pressure Monitor
System (TPMS), this light comes on briefly
when the engine is started. It provides
information about tire pressures and
the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires
are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display. Stop as
soon as possible, and inflate the tires to the
pressure value shown on the Tire and
Loading Information label. SeeTire Pressure
0 291.
When the Light Flashes First and Then Is On
Steady
If the light flashes for about a minute and
then stays on, there may be a problem with
the TPMS. If the problem is not corrected, the light will come on at every ignition
cycle. See
Tire Pressure Monitor Operation
0 294.
Engine Oil Pressure Light
Oil pressure can vary with engine speed,
outside temperature, and oil viscosity.
On some models, the oil pump will vary
engine oil pressure according to engine
needs. Oil pressure may change quickly as
the engine speed or load varies. This is
normal. If the oil pressure warning light or
Driver Information Center (DIC) message
indicates oil pressure outside the normal
operating range, check the vehicle's oil as
soon as possible.
Caution
Lack of proper engine oil maintenance
can damage the engine. Driving with the
engine oil low can also damage the
engine. The repairs would not be covered
by the vehicle warranty. Check the oil
level as soon as possible. Add oil if
required, but if the oil level is within the
operating range and the oil pressure is
(Continued)
Caution (Continued)
still low, have the vehicle serviced.
Always follow the maintenance schedule
for changing engine oil.
This light should come on briefly as the
engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the light comes on and stays on, it means
that oil is not flowing through the engine
properly. The vehicle could be low on oil
and might have some other system
problem. See your dealer.
Low Fuel Warning Light

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248 Driving and Operating
equipment can cause the combination to
operate in an unexpected or unsafe manner.
Before driving, inspect all trailer hitch parts
and attachments, safety chains, electrical
connectors, lamps, tires, and mirrors. See
Towing Equipment0252. If the trailer has
electric brakes, start the combination
moving and then manually apply the trailer
brake controller to check the trailer brakes
work. During the trip, occasionally check
that the cargo and trailer are secure and
that the lamps and any trailer brakes are
working.
Towing with a Stability Control System
When towing, the stability control system
might be heard. The system reacts to
vehicle movement caused by the trailer,
which mainly occurs during cornering. This is
normal when towing heavier trailers.
Following Distance
Stay at least twice as far behind the vehicle
ahead as you would when driving without a
trailer. This can help to avoid heavy braking
and sudden turns.
Passing
More passing distance is needed when
towing a trailer. The combination of the
vehicle and trailer will not accelerate as
quickly and is much longer than the vehicle
alone. It is necessary to go much farther
beyond the passed vehicle before returning
to the lane. Pass on level roadways. Avoid
passing on hills if possible.
Backing Up
Hold the bottom of the steering wheel with
one hand. To move the trailer to the left,
move that hand to the left. To move the
trailer to the right, move that hand to the
right. Always back up slowly and, if possible,
have someone guide you.
Making Turns
Caution
Turn more slowly and make wider arcs
when towing a trailer to prevent damage
to your vehicle. Making very sharp turns
could cause the trailer to contact the
vehicle. Make wider turns than normal when towing,
so trailer will not go over soft shoulders,
over curbs, or strike road signs, trees,
or other objects. Always signal turns well in
advance. Do not steer or brake suddenly.
Driving on Grades
Reduce speed and shift to a lower gear
before starting down a long or steep
downhill grade. If the transmission is not
shifted down, the brakes may overheat and
result in reduced braking efficiency.
The vehicle can tow in D (Drive). Shift the
transmission to a lower gear if the
transmission shifts too often under heavy
loads and/or hilly conditions.
When towing at higher altitudes, engine
coolant will boil at a lower temperature
than at lower altitudes. If the engine is
turned off immediately after towing at high
altitude on steep uphill grades, the vehicle
could show signs similar to engine
overheating. To avoid this, let the engine
run, preferably on level ground, with the
transmission in P (Park) for a few minutes
before turning the engine off. If the
overheat warning comes on, see
Engine
Overheating 0269.

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Driving and Operating 249
Parking on Hills
{Warning
To prevent serious injury or death,
always park your vehicle and trailer on a
level surface when possible.
When parking your vehicle and your trailer
on a hill: 1. Press the brake pedal, but do not shift into P (Park) yet. Turn the wheels into
the curb if facing downhill or into traffic
if facing uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, gradually release the brake pedal to
allow the chocks to absorb the load of
the trailer.
4. Reapply the brake pedal. Then apply the parking brake and shift into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal.
.Start the engine.
.Shift into a gear.
.Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
The vehicle needs service more often when
used to tow trailers. See Maintenance
Schedule 0323. It is especially important to
check the engine oil, axle lubricant, belts,
cooling system, and brake system before
and during each trip.
Check periodically that all nuts and bolts on
the trailer hitch are tight.
Engine Cooling When Trailer Towing
The cooling system may temporarily
overheat during severe operating conditions.
See Engine Overheating 0269.
Trailer Towing
Caution
Towing a trailer improperly can damage
the vehicle and result in costly repairs
not covered by the vehicle warranty. To
tow a trailer correctly, follow the
directions in this section and see your
dealer for important information about
towing a trailer with the vehicle.
Trailer Weight
{Warning
Never exceed the towing capacity for
your vehicle.
Safe trailering requires monitoring the
weight, speed, altitude, road grades, outside
temperature, dimensions of the front of the
trailer, and how frequently the vehicle is
used to tow a trailer.

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Vehicle Care 257
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 258
California Proposition 65 Warning . . . . . 258
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 258
Accessories and Modifications . . . . . . . . . 258
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 259
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Engine Compartment Overview . . . . . . . . 261
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Engine Oil Life System . . . . . . . . . . . . . . . . 264
Automatic Transmission Fluid . . . . . . . . . 264
Engine Air Filter Life System . . . . . . . . . . 265
Engine Air Cleaner/Filter . . . . . . . . . . . . . . 265
Cooling System . . . . . . . . . . . . . . . . . . . . . . . 266
Engine Overheating . . . . . . . . . . . . . . . . . . . 269
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Battery - North America . . . . . . . . . . . . . . . 272
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 273
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Wiper Blade Replacement . . . . . . . . . . . . . 273
Windshield Replacement . . . . . . . . . . . . . . 274
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 276
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 276
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 276
Electrical System
High Voltage Devices and Wiring . . . . . . 277
Electrical System Overload . . . . . . . . . . . . . 277
Fuses and Circuit Breakers . . . . . . . . . . . . . 277
Engine Compartment Fuse Block . . . . . . 278
Instrument Panel Fuse Block . . . . . . . . . . . 281
Rear Compartment Fuse Block . . . . . . . . . 283
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 286
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 286
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 288
Tire Terminology and Definitions . . . . . . 289
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Tire Pressure Monitor System . . . . . . . . . 293
Tire Pressure Monitor Operation . . . . . . 294
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 297
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 297
When It Is Time for New Tires . . . . . . . . 298 Buying New Tires . . . . . . . . . . . . . . . . . . . . . 299
Different Size Tires and Wheels . . . . . . . 300
Uniform Tire Quality Grading . . . . . . . . . 300
Wheel Alignment and Tire Balance . . . . 301
Wheel Replacement . . . . . . . . . . . . . . . . . . . 301
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 303
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 304
Compact Spare Tire . . . . . . . . . . . . . . . . . . . 309
Jump Starting
Jump Starting - North America . . . . . . . . 309
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . . 312
Recreational Vehicle Towing . . . . . . . . . . . 312
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

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262 Vehicle Care
1.Engine Air Cleaner/Filter 0265.
2. Engine Oil Fill Cap. See Engine Oil0262.
3. Engine Oil Dipstick. See Engine Oil0262.
4. Engine Cooling Fan (Out of View). See Cooling System 0266.
5. Brake Fluid Reservoir. See Brake Fluid
0 271.
6. Battery - North America 0272.
7. Engine Coolant Surge Tank and Pressure Cap. See Cooling System 0266.
8. Positive (+) Battery Terminal. See Jump
Starting - North America 0309.
9. Windshield Washer Fluid Reservoir. See Washer Fluid 0270.
10. Engine Compartment Fuse Block 0278.
11. Remote Negative (-) Battery Terminal. SeeJump Starting - North America
0 309.
Engine Oil
To ensure proper engine performance and
long life, careful attention must be paid to
engine oil. Following these simple, but
important steps will help protect your
investment:
.Use engine oil approved to the proper
specification and of the proper viscosity
grade. See “Selecting the Right Engine
Oil” in this section.
.Check the engine oil level regularly and
maintain the proper oil level. See
“Checking Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the appropriate
time. SeeEngine Oil Life System 0264.
.Always dispose of engine oil properly. See
“What to Do with Used Oil” in this
section.
Checking Engine Oil
Check the engine oil level regularly, every
650 km (400 mi), especially prior to a long
trip. The engine oil dipstick handle is a loop.
See Engine Compartment Overview 0261 for
the location.
{Warning
The engine oil dipstick handle may be
hot; it could burn you. Use a towel or
glove to touch the dipstick handle.
If a low oil Driver Information Center (DIC)
message displays, check the oil level. Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the engine
oil level after the engine has been off for
at least two hours. Checking the engine
oil level on steep grades or too soon after
engine shutoff can result in incorrect
readings. Accuracy improves when
checking a cold engine prior to starting.
Remove the dipstick and check the level.
.If unable to wait two hours, the engine
must be off for at least 15 minutes if the
engine is warm, or at least 30 minutes if
the engine is not warm. Pull out the
dipstick, wipe it with a clean paper towel
or cloth, then push it back in all the way.
Remove it again, keeping the tip down,
and check the level.
When to Add Engine Oil
If the oil is below the cross-hatched area at
the tip of the dipstick and the engine has
been off for at least 15 minutes, add 1 L

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Vehicle Care 263
(1 qt) of the recommended oil and then
recheck the level. See“Selecting the Right
Engine Oil” later in this section for an
explanation of what kind of oil to use. For
engine oil crankcase capacity, see Capacities
and Specifications 0335.
Caution
Do not add too much oil. Oil levels above
or below the acceptable operating range
shown on the dipstick are harmful to the
engine. If the oil level is above the
operating range (i.e., the engine has so
much oil that the oil level gets above the
cross-hatched area that shows the proper
operating range), the engine could be
damaged. Drain the excess oil or limit
driving of the vehicle, and seek a service
professional to remove the excess oil.
See Engine Compartment Overview 0261 for
the location of the engine oil fill cap.
Add enough oil to put the level somewhere
in the proper operating range. Push the
dipstick all the way back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil depends on
both the proper oil specification and
viscosity grade. See Recommended Fluids
and Lubricants 0331.
Specification
Ask for and use full synthetic engine oils
that meet the dexos1 specification. Engine
oils that have been approved by GM as
meeting the dexos1 specification are marked
with the dexos1 approved logo. See
www.gmdexos.com.
Caution
Failure to use the recommended engine
oil or equivalent can result in engine
damage not covered by the vehicle
warranty. Viscosity Grade
Use SAE 5W-30 viscosity grade engine oil.
Cold Temperature Operation: In an area of
extreme cold, where the temperature falls
below
−29 °C (−20 °F), an SAE 0W-30 oil may
be used. An oil of this viscosity grade will
provide easier cold starting for the engine at
extremely low temperatures.
When selecting an oil of the appropriate
viscosity grade, it is recommended to select
an oil of the correct specification. See
“Specification” earlier in this section.
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the dexos1
specification are all that is needed for good
performance and engine protection.
Engine oil system flushes are not
recommended and could cause engine
damage not covered by the vehicle
warranty.
What to Do with Used Oil
Used engine oil contains certain elements
that can be unhealthy for your skin and
could even cause cancer. Do not let used oil
stay on your skin for very long. Clean your
skin and nails with soap and water, or a

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264 Vehicle Care
good hand cleaner. Wash or properly
dispose of clothing or rags containing used
engine oil. See the manufacturer's warnings
about the use and disposal of oil products.
Used oil can be a threat to the environment.
If you change your own oil, be sure to drain
all the oil from the filter before disposal.
Never dispose of oil by putting it in the
trash or pouring it on the ground, into
sewers, or into streams or bodies of water.
Recycle it by taking it to a place that
collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that
indicates when to change the engine oil and
filter. This is based on a combination of
factors which include engine revolutions,
engine temperature, and miles driven. Based
on driving conditions, the mileage at which
an oil change is indicated can vary
considerably. For the oil life system to work
properly, the system must be reset every
time the oil is changed.
When the system has calculated that oil life
has been diminished, it indicates that an oil
change is necessary. A CHANGE ENGINE OILSOON message comes on. Change the oil as
soon as possible within the next 1 000 km
(600 mi). It is possible that, if driving under
the best conditions, the oil life system
might indicate that an oil change is not
necessary for up to a year. The engine oil
and filter must be changed at least once a
year and, at this time, the system must be
reset. Your dealer has trained service people
who will perform this work and reset the
system. It is also important to check the oil
regularly over the course of an oil drain
interval and keep it at the proper level.
If the system is ever reset accidentally, the
oil must be changed at 5 000 km (3,000 mi)
since the last oil change. Remember to reset
the oil life system whenever the oil is
changed.
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is
changed so that the system can calculate
the next engine oil change. To reset the
system:
1. Display the REMAINING OIL LIFE on the DIC. See Driver Information Center (DIC)
(Base Level) 0109 or
Driver Information Center (DIC) (Uplevel)
0 111. 2. Press and hold
Von the DIC while the
Oil Life display is active. The oil life will
change to 100%.
If the CHANGE ENGINE OIL SOON message
comes back on when the vehicle is started,
the engine oil life system has not been
reset. Repeat the procedure.
Automatic Transmission Fluid
It is not necessary to check the transmission
fluid level. A transmission fluid leak is the
only reason for fluid loss. If a leak occurs,
take the vehicle to the dealer and have it
repaired as soon as possible.
Change the fluid at the intervals listed in
Maintenance Schedule 0323, and be sure to
use the transmission fluid listed in
Recommended Fluids and Lubricants 0331.
Caution
Use of the incorrect automatic
transmission fluid may damage the
vehicle, and the damage may not be
covered by the vehicle warranty. Always
use the correct automatic transmission
fluid. See Recommended Fluids and
Lubricants 0331.

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Vehicle Care 265
The transmission fluid will not reach the end
of the dipstick unless the transmission is at
operating temperature. If you need to check
the transmission fluid level, take the vehicle
to your dealer.
Engine Air Filter Life System
When to Change Engine Air Filter
If equipped, this feature provides an
indication of when to change the engine air
filter. It is based on driving conditions,
which can cause when to change to vary
greatly. It is possible an air filter change
may not be indicated for up to four years.
When the "Replace at Next Oil Change"
message displays, the engine air filter
should be replaced at the time of the next
engine oil change. When the "Replace
Engine Air Filter Now" message displays, the
engine air filter should be replaced as soon
as possible. Reset the engine air filter life
system after the engine air filter is replaced.
See your dealer for service and to reset the
system.
How to Reset Engine Air Filter Life
System
Reset the system whenever the engine air
filter is replaced so that the system can
calculate the next engine air filter change.
To reset:1. Place the vehicle in P (Park).
2. Select Engine Air Filter Life on the DIC menu. See Driver Information Center
(DIC) (Base Level) 0109 or
Driver Information Center (DIC) (Uplevel)
0 111.
3. Press > to move to the Reset/Disable display area. Select Reset then press
V.
Then press Yes to confirm the reset.
4. 100% Air Filter Life will be displayed when the Engine Air Filter Life System is
successfully reset.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the engine
compartment on the passenger side of the
vehicle. See Engine Compartment Overview
0 261.
When to Inspect the Engine Air Cleaner/
Filter
.For intervals on changing and inspecting
the engine air filter, see Maintenance
Schedule 0323.
.If equipped with Engine Air Filter Life
System, see Engine Air Filter Life System
0 265.
.If driving in very dusty areas, follow the
engine air filter inspecting and changing
intervals, see Maintenance Schedule
0 323.
How to Inspect/Replace the Engine Air
Cleaner/Filter
Do not start the engine or have the engine
running with the engine air cleaner/filter
housing open. Before removing the engine
air cleaner/filter, make sure that the engine
air cleaner/filter housing and nearby
components are free of dirt and debris.
Remove the engine air cleaner/filter. Lightly
tap and shake the engine air cleaner/filter
(away from the vehicle), to release loose
dust and dirt. Inspect the engine air cleaner/
filter for damage, and replace if damaged.
Do not clean the engine air cleaner/filter or
components with water or compressed air.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Vehicle Care 267
{Warning
Do not touch heater or radiator hoses,
or other engine parts. They can be very
hot and can burn you. Do not run the
engine if there is a leak; all coolant could
leak out. That could cause an engine fire
and can burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The cooling system in the vehicle is filled
with DEX-COOL engine coolant. This coolant
needs to be checked and replaced at
appropriate intervals. SeeMaintenance
Schedule 0323.
The following explains the cooling system
and how to check and add coolant when it
is low. If there is a problem with engine
overheating, see Engine Overheating 0269.
What to Use
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
(Continued)
Warning (Continued)
the wrong mixture, the engine could get
too hot but there would not be an
overheat warning. The engine could catch
fire and you or others could be burned.
Use a 50/50 mixture of clean, drinkable
water and DEX-COOL coolant. If using this
mixture, nothing else needs to be added.
This mixture:
.Gives freezing protection down to −37 °C
(−34 °F), outside temperature.
.Gives boiling protection up to 129 °C
(265 °F), engine temperature
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
Caution
Do not use anything other than a mix of
DEX-COOL coolant that meets GM
Standard GMW3420 and clean, drinkable
water. Anything else can cause damage
to the engine cooling system and the
vehicle, which would not be covered by
the vehicle warranty. Never dispose of engine coolant by putting
it in the trash, pouring it on the ground,
or into sewers, streams, or bodies of water.
Have the coolant changed by an authorized
service center, familiar with legal
requirements regarding used coolant
disposal. This will help protect the
environment and your health.
Checking Coolant
The vehicle must be on a level surface when
checking the coolant level.
Check to see if coolant is visible in the
coolant surge tank. If the coolant inside the
coolant surge tank is boiling, do not do
anything else until it cools down. If coolant
is visible but the coolant level mark is not