2019 BUICK ENVISION heating

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Vehicle Care 257
{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.
The cooling system in the vehicle is
filled with DEX-COOL engine
coolant. This coolant is designed to
remain in the vehicle for 5 years or
240 000 km (150,000 mi), whichever
occurs first.
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 0259.
What to Use
{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.
Use a 50/50 mixture of clean
drinkable water and DEX-COOL
coolant. 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 pouring it 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.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Vehicle Care 259
cooling system, including the
coolant surge tank pressure cap, is
cool before you do it.
1. Remove the coolant surge tankpressure 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.
3. Fill the coolant surge tank withthe proper 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 fans.
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 an engine coolant
temperature gauge to warn of the
engine overheating. See Engine
Coolant Temperature Gauge 0128.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
260 Vehicle Care
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 fans are running. If the
engine is overheating, the fans
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 overheat
zone, the vehicle can be driven.
Continue to drive the vehicle slowly
for about 10 minutes. Keep a safe
vehicle 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.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Vehicle Care 277
Relays UsageK1 Parking lamps
K2 –
K3 Run
K4 Logistics
K5 DC AC
K6 –
K7 Park lamps
K8 Trailer right turn signal lamps
K9 Trailer left turn signal lamps
K10 –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 0184.
(Continued)
Warning (Continued)
.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.
.Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
(Continued)

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
284 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
0
292.
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 0294.
Vehicle Capacity Weight
:The
number of designated seating
positions multiplied by
68 kg (150 lb) plus the rated
cargo load. See Vehicle Load
Limits 0184.
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
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See “Tire and Loading
Information Label” underVehicle
Load Limits 0184.
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.
(Continued)

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
368 Index
Driving (cont'd)Defensive . . . . . . . . . . . . . . . . . . . . . 178
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 179
Environment . . . . . . . . . . . . . . . . . . 177
For Better Fuel Economy . . . . . . . 25
Hill and Mountain Roads . . . . . . 182
If the Vehicle is Stuck . . . . . . . . . 184
Loss of Control . . . . . . . . . . . . . . . 180
Off-Road Recovery . . . . . . . . . . . 180
Vehicle Load Limits . . . . . . . . . . . 184
Wet Roads . . . . . . . . . . . . . . . . . . . 181
Winter . . . . . . . . . . . . . . . . . . . . . . . . 182
Driving the Vehicle . . . . . . . . . . . . . . . . 2
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 169
E
Electric Parking Brake . . . . . . . . . . 201
Electric Parking Brake Light . . . . 134
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 242
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 271
Fuses and Circuit Breakers . . . 271
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 274
Overload . . . . . . . . . . . . . . . . . . . . . 270 Electrical System (cont'd)
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 275
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 354
Engine Air Cleaner/Filter . . . . . . . . . . . . . 254
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 132
Compartment Overview . . . . . . . 247
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 128
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 137
Cooling System . . . . . . . . . . . . . . . 256
Drive Belt Routing . . . . . . . . . . . . 338
Exhaust . . . . . . . . . . . . . . . . . . . . . . 196
Heater . . . . . . . . . . . . . . . . . . . . . . . . 193
Oil Life System . . . . . . . . . . . . . . . 252
Oil Pressure Light . . . . . . . . . . . . 138
Overheating . . . . . . . . . . . . . . . . . . 259
Power Messages . . . . . . . . . . . . . 149
Running While Parked . . . . . . . . 197
Starting . . . . . . . . . . . . . . . . . . . . . . . 191
Engine Oil Temperature Gauge . . . . . . . . . . 127
Entry Lighting . . . . . . . . . . . . . . . . . . . 166
Equipment, Towing . . . . . . . . . . . . . 240 Event Data Recorders . . . . . . . . . . 351
Exit Lighting . . . . . . . . . . . . . . . . . . . . 166
Extended Parking . . . . . . . . . . . . . . . 196
Extender, Seat Belt . . . . . . . . . . . . . . 72
Exterior Lamp Controls . . . . . . . . . 160
Exterior Lamps Off Reminder . . . 162
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 167
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 11
Filter, Engine Air Cleaner . . . . . . . . . . . 254
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 162
Flashers, Hazard Warning . . . . . . 163
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 297 Changing . . . . . . . . . . . . . . . . . . . . . 299
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 320
Fluid Automatic Transmission . . . . . . 253
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 262
Washer . . . . . . . . . . . . . . . . . . . . . . . 261
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 164
Folding Mirrors . . . . . . . . . . . . . . . . . . 47
Forward Automatic Braking . . . . . 224
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 222

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Index 369
Frequency StatementRadio . . . . . . . . . . . . . . . . . . . . . . . . . 349
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Front Seats Heated and Ventilated . . . . . . . . . . 61
Front Storage . . . . . . . . . . . . . . . . . . . 106
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . 231
Economy Driving . . . . . . . . . . . . . . . 25
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 233
Filling the Tank . . . . . . . . . . . . . . . 232
Foreign Countries . . . . . . . . . . . . 231
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 126
Low Fuel Warning Light . . . . . . . 138
Prohibited Fuels . . . . . . . . . . . . . . 231
Recommended . . . . . . . . . . . . . . . 230
Top Tier . . . . . . . . . . . . . . . . . . . . . . 230
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 271
Fuses and Circuit Breakers . . . 271
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 274
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 275G
Garage Door Opener . . . . . . . . . . . 157Programming . . . . . . . . . . . . . . . . . 157
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 267
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 128
Engine Oil Temperature . . . . . . . 127
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Odometer . . . . . . . . . . . . . . . . . . . . . 125
Speedometer . . . . . . . . . . . . . . . . . 125
Tachometer . . . . . . . . . . . . . . . . . . . 125
Trip Odometer . . . . . . . . . . . . . . . . 125
Voltmeter . . . . . . . . . . . . . . . . . . . . . 129
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 121
General Information Service and Maintenance . . . . . 321
Towing . . . . . . . . . . . . . . . . . . . . . . . . 234
Vehicle Care . . . . . . . . . . . . . . . . . . 244
Glove Box . . . . . . . . . . . . . . . . . . . . . . 105
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 343
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 269
Hazard Warning Flashers . . . . . . . 163
Head Restraints . . . . . . . . . . . . . . . . . 54
Head-up Display . . . . . . . . . . . . . . . . 145
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 268
Automatic . . . . . . . . . . . . . . . . . . . . . 163
Bulb Replacement . . . . . . . . . . . . 269
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 162
Flash-to-Pass . . . . . . . . . . . . . . . . . 162
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 269
High-Beam On Light . . . . . . . . . . 139
High/Low Beam Changer . . . . . 162
Lamps On Reminder . . . . . . . . . 139
Washer . . . . . . . . . . . . . . . . . . . . . . . .116
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . 65
Steering Wheel . . . . . . . . . . . . . . . .113
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Heated Mirrors . . . . . . . . . . . . . . . . . . . 47
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 193
Heating . . . . . . . . . . . . . . . . . . . . 169, 172
High-Beam On Light . . . . . . . . . . . . 139

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Index 371
Lights (cont'd)Lane Keep Assist . . . . . . . . . . . . . 135
Low Fuel Warning . . . . . . . . . . . . 138
Seat Belt Reminders . . . . . . . . . . 129
Security . . . . . . . . . . . . . . . . . . . . . . 139
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 134
StabiliTrak OFF . . . . . . . . . . . . . . . 136
Tire Pressure . . . . . . . . . . . . . . . . . 137
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . 137
Traction Off . . . . . . . . . . . . . . . . . . . 136
Locks Automatic Door . . . . . . . . . . . . . . . . . 38
Delayed Locking . . . . . . . . . . . . . . . . 37
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lockout Protection . . . . . . . . . . . . . . 38
Power Door . . . . . . . . . . . . . . . . . . . . . 37
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Loss of Control . . . . . . . . . . . . . . . . . 180
Low Fuel Warning Light . . . . . . . . . 138
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 93
Lumbar Adjustment . . . . . . . . . . . . . . 56 Front Seats . . . . . . . . . . . . . . . . . . . . . 56M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 334
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 329
Maintenance Schedule . . . . . . . . . 323 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 332
Malfunction Indicator Lamp . . . . . 132
Manual Mode . . . . . . . . . . . . . . . . . . . 199
Memory Features . . . . . . . . . . . . . . . . 11
Memory Seats . . . . . . . . . . . . . . . . . . . 58
Messages Engine Power . . . . . . . . . . . . . . . . 149
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 149
Vehicle Speed . . . . . . . . . . . . . . . . 149
Mirrors Automatic Dimming . . . . . . . . . . . . . 48
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 48
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 47
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 47
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 47
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Tilt in Reverse . . . . . . . . . . . . . . . . . . 48
Mirrors, Interior Rearview . . . . . . . . 48
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 286
N
Navigation
Connected Services . . . . . . . . . . 361
Net, Convenience . . . . . . . . . . . . . . 110
New Vehicle Break-In . . . . . . . . . . . 188
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 125 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 180
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Oil Life System . . . . . . . 252
Pressure Light . . . . . . . . . . . . . . . . 138
Older Children, Restraints . . . . . . . 86
Online Owner Center . . . . . . . . . . . 342
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 352
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 355
OnStar Emergency . . . . . . . . . . . . . 354
OnStar Overview . . . . . . . . . . . . . . . 353
OnStar Security . . . . . . . . . . . . . . . . 355
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 164
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . .117
Overheating, Engine . . . . . . . . . . . . 259