2023 BUICK ENCLAVE overheating

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16411536) - 2023 - CRC - 3/28/22
266 Vehicle Care
{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 0324.
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 0268.
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

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16411536) - 2023 - CRC - 3/28/22
Vehicle Care 267
visible, add a 50/50 mixture of clean,
drinkable water and DEX-COOL coolant at
the coolant surge tank to the top rib on the
middle of the tank, but be sure the cooling
system is cool before this is done. See
Engine Overheating0268.
The coolant surge tank is located in the
engine compartment on the driver side of
the vehicle. See Engine Compartment
Overview 0260.
How to Add Coolant to the Coolant
Surge Tank
{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.
{Warning
Plain water, or other liquids such as
alcohol, can boil before the proper
coolant mixture will. With plain water or
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.
{Warning
Spilling coolant on hot engine parts can
burn you. Coolant contains ethylene
glycol and it will burn if the engine parts
are hot enough.
Caution
Failure to follow the specific coolant fill
procedure could cause the engine to
overheat and could cause system
damage. If coolant is not visible in the
surge tank, contact your dealer.
If no problem is found, check to see if
coolant is visible in the coolant surge tank.
If coolant is visible but the coolant level is
not at the indicated level mark, add a 50/50 mixture of clean, drinkable water and
DEX-COOL coolant at the coolant surge tank,
but be sure the cooling system, including
the coolant surge tank pressure cap, is cool
before you do it.
1. Remove the coolant surge tank pressure
cap when the cooling system, including
the coolant surge tank pressure cap and
upper radiator hose, is no longer hot.
Turn the pressure cap slowly
counterclockwise about one-quarter of a
turn. If you hear a hiss, wait for that to
stop. This will allow any pressure still
left to be vented out the discharge hose.
2. Keep turning the pressure cap slowly and remove it.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16411536) - 2023 - CRC - 3/28/22
268 Vehicle Care
3. Fill the coolant surge tank with theproper mixture to the indicated
level mark.
4. With the coolant surge tank pressure cap off, start the engine and let it run until
you can feel the upper radiator hose
getting hot. Watch out for the engine
cooling fan.
By this time, the coolant level inside the
coolant surge tank may be lower. If the
level is lower, add more of the proper
mixture to the coolant surge tank until
the level reaches the indicated
level mark.
5. Replace the pressure cap tightly. 6. Verify coolant level after the engine is
shut off and the coolant is cold.
If necessary, repeat coolant fill procedure
Steps 1–6.
If the coolant still is not at the proper
level when the system cools down again,
see your dealer.
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.
Engine Overheating
The vehicle has several indicators to warn of
the engine overheating.
There is an engine coolant temperature
gauge on the instrument cluster. See Engine
Coolant Temperature Gauge 0102. 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. See Roadside Assistance Program
0 338. 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
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.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16411536) - 2023 - CRC - 3/28/22
Vehicle Care 285
FusesUsage
F56 Universal Remote System/Overhead
Console/Humidity/Rain
Sensor
F57 Hands Free Closure Release
Circuit Breakers Usage CB1 –
CB2 –
CB3 Rear Auxiliary Power Outlet
Relays Usage
K1 –
K2 –
Wheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits
0195.
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact —such as when
hitting a pothole. Keep tires at the
recommended pressure.
(Continued)
Warning (Continued)
.Worn or old tires can cause a
crash. If the tread is badly worn,
replace them.
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only your dealer or an
authorized tire service center
should repair, replace, dismount,
and mount the tires.
.Do not spin the tires in excess of
56 km/h (35 mph) on slippery
surfaces such as snow, mud, ice,
etc. Excessive spinning may cause
the tires to explode.
See Tire Pressure for High-Speed
Operation 0291 for inflation pressure
adjustment for high-speed driving.
All-Season Tires
This vehicle may come with all-season tires.
These tires are designed to provide good
overall performance on most road surfaces

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16411536) - 2023 - CRC - 3/28/22
290 Vehicle Care
Radial Ply Tire:A pneumatic tire in
which the ply cords that extend to the
beads are laid at 90 degrees to the
centerline of the tread.
Rim
:A metal support for a tire and
upon which the tire beads are seated.
Sidewall
:The portion of a tire between
the tread and the bead.
Speed Rating
:An alphanumeric code
assigned to a tire indicating the
maximum speed at which a tire can
operate.
Traction
:The friction between the tire
and the road surface. The amount of
grip provided.
Tread
:The portion of a tire that comes
into contact with the road.
Treadwear Indicators
:Narrow bands,
sometimes called wear bars, that show
across the tread of a tire when only
1.6 mm (1/16 in) of tread remains. See
When It Is Time for New Tires 0297.
UTQGS (Uniform Tire Quality Grading
Standards)
:A tire information system
that provides consumers with ratings for a tire's traction, temperature, and
treadwear. Ratings are determined by
tire manufacturers using government
testing procedures. The ratings are
molded into the sidewall of the tire.
See
Uniform Tire Quality Grading 0299.
Vehicle Capacity Weight
:The number
of designated seating positions
multiplied by 68 kg (150 lbs) plus the
rated cargo load. See Vehicle Load
Limits 0195.
Vehicle Maximum Load on the Tire
:
Load on an individual tire due to curb
weight, accessory weight, occupant
weight, and cargo weight.
Vehicle Placard
:A label permanently
attached to a vehicle showing the
vehicle's capacity weight and the
original equipment tire size and
recommended inflation pressure. See
“Tire and Loading Information Label”
under Vehicle Load Limits 0195.
Tire Pressure
Tires need the correct amount of air
pressure to operate effectively.
{Warning
Neither tire underinflation nor
overinflation is good. Underinflated
tires, or tires that do not have
enough air, can result in:
.Tire overloading and overheating,
which could lead to a blowout
.Premature or irregular wear
.Poor handling
.Reduced fuel economy for
internal combustion engine
vehicles
.Reduced range for electric vehicles
Overinflated tires, or tires that have
too much air, can result in:
.Unusual wear
.Poor handling
.Rough ride
.Needless damage from road
hazards

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16411536) - 2023 - CRC - 3/28/22
Index 357
Driving (cont'd)Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 188
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 195
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Dual
Automatic Climate Control System . . . . 178
E
ElectricParking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Parking Brake Light . . . . . . . . . . . . . . . . . . . . 107
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 255
System Overload . . . . . . . . . . . . . . . . . . . . . . 276
Electrical System
Engine Compartment Fuse Block . . . . . . . 278
Fuses and Circuit Breakers . . . . . . . . . . . . . 277
Instrument Panel Fuse Block . . . . . . . . . . . 281
Rear Compartment Fuse Block . . . . . . . . . 283
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 264
Air Filter Life System . . . . . . . . . . . . . . . . . . 264
Check Light (Malfunction Indicator) . . . . 105
Compartment Overview . . . . . . . . . . . . . . . . 260 Engine (cont'd)
Coolant Temperature Gauge . . . . . . . . . . . 102
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 265
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 334
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 263
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 110
Oil Temperature Gauge . . . . . . . . . . . . . . . . 101
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 120
Running While Parked . . . . . . . . . . . . . . . . . 205
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . . 251
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 344
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 205
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .53
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . 123
Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 124
Lighting Battery Saver . . . . . . . . . . . . . . . . . 129
F
Filter
Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 264
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Flashers, Hazard Warning . . . . . . . . . . . . . . . . 126
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Fluid Automatic Transmission . . . . . . . . . . . . . . . 263
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Forward Collision Alert (FCA) System . . . . . . . . . . . 232
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Front Heated and Ventilated Seats . . . . . . . . . . . . 41
Pedestrian Braking (FPB) System . . . . . . . 236
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Economy, Driving for Better . . . . . . . . . . . 186
Filling a Portable Fuel Container . . . . . . . 244
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 242
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 242
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Low Fuel Warning Light . . . . . . . . . . . . . . . . 111

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16411536) - 2023 - CRC - 3/28/22
360 Index
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . 111
Lower Anchors and Tethers forChildren (LATCH System) . . . . . . . . . . . . . . . . 70
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 38 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 324 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Malfunction Indicator Lamp . . . . . . . . . . . . . . 105
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . .154
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Massage Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Media Avoiding Untrusted Devices . . . . . . . . . . . . 139
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Mirrors Automatic Dimming . . . . . . . . . . . . . . . . . . . . 28 Mirrors (cont'd)
Automatic Dimming Rearview . . . . . . . . . . 28
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Interior Rearview . . . . . . . . . . . . . . . . . . . . . . . 28
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mode Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 214
Monitor System, Tire Pressure . . . . . . . . . . . 292
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . 139
Multi-Point Vehicle Inspection (MPVI) . . . . 326
N
Navigation
Connected Services . . . . . . . . . . . . . . . . . . . . 351
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Using the System . . . . . . . . . . . . . . . . . . . . . . 143
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 198
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Off-Road
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Engine Oil Life System . . . . . . . . . . . . . . . . . 263
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 110
Older Children, Restraints . . . . . . . . . . . . . . . . . 64
Online Account . . . . . . . . . . . . . . . . . . . . . . . . . . 337
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345 Additional Information . . . . . . . . . . . . . . . . . 348
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 347
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 268
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 4
P
Park
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226, 229
Shifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 204
Parking Brake and P (Park) MechanismCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Over Things That Burn . . . . . . . . . . . . . . . . . 205